CN114816462A - Host upgrading method and device, electronic equipment and storage medium - Google Patents
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Abstract
The invention discloses a host upgrading method, a host upgrading device, electronic equipment and a storage medium, wherein the method comprises the following steps: the method comprises the steps of obtaining the number of first virtual machines deployed by each host in a host cluster, and sequencing the hosts according to the number of the deployed first virtual machines from large to small to obtain a host queue, wherein the first virtual machines are virtual machines in a mutually exclusive group of virtual machines; according to the sequencing, sequentially determining an upgrading set to which the hosts in the host queue belong, wherein the hosts in the upgrading set do not have a mutual exclusion relationship, and the hosts with the mutual exclusion relationship cannot simultaneously carry out upgrading operation; and carrying out upgrading operation according to the upgrading set. The scheme of the embodiment of the invention can ensure that each host in the obtained upgrading set does not have mutual exclusion relationship, avoid destroying the backup relationship among the virtual machines, and simultaneously is beneficial to reducing the number of the upgrading sets, so that the upgrading efficiency of the cluster hosts can be improved when upgrading operation is carried out according to the upgrading sets.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a host upgrading method and device, electronic equipment and a storage medium.
Background
In a Network Function Virtualization (NFV) scenario, different Network element services are presented by different virtual machines, and multiple virtual machines can be deployed on the same physical host to carry multiple services. Virtual machines with backup business relationships are scheduled to different hosts. On the premise of satisfying the backup relationship, the virtual machine is distributed and deployed on the host machine in an intricate and complex manner.
When the host machines in the system need to be upgraded offline, under the condition of huge number of host machines, if a method for upgrading the host machines offline one by one is adopted, obviously, the time is unacceptable, but if a plurality of host machines are offline at the same time, the backup relation among the virtual machines on the offline host machines is difficult to be guaranteed. Therefore, a method for upgrading the host in batch off-line without destroying the backup relationship between the virtual machines is needed.
Disclosure of Invention
The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.
The embodiment of the invention provides a host upgrading method and device, electronic equipment and a storage medium, which can realize batch offline upgrading of a host without damaging backup relations among virtual machines.
In a first aspect, an embodiment of the present invention provides a host upgrading method, where the method includes:
the method comprises the steps of obtaining the number of first virtual machines deployed by each host in a host cluster, and sequencing the hosts according to the number of the deployed first virtual machines from large to small to obtain a host queue, wherein the first virtual machines are virtual machines in a mutually exclusive group of virtual machines;
according to the sequencing, sequentially determining an upgrading set to which the hosts in the host queue belong, wherein the hosts in the upgrading set do not have a mutual exclusion relationship, and the hosts with the mutual exclusion relationship cannot simultaneously carry out upgrading operation;
and carrying out upgrading operation according to the upgrading set.
In a second aspect, an embodiment of the present invention provides a host upgrading apparatus, where the apparatus includes:
the system comprises a sequencing module, a queue module and a queue module, wherein the sequencing module is used for acquiring the number of first virtual machines deployed by each host in a host cluster, and sequencing the hosts according to the number of the deployed first virtual machines from large to small to obtain a host queue, and the first virtual machines are virtual machines in a mutually exclusive group of virtual machines;
a determining module, configured to sequentially determine, according to the sorting, an upgrade set to which the hosts in the host queue belong, where no mutual exclusion relationship exists among the hosts in the upgrade set, and the hosts in the mutual exclusion relationship cannot perform upgrade operations at the same time;
and the upgrading module is used for carrying out upgrading operation according to the upgrading set.
In a third aspect, an embodiment of the present invention provides an electronic device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the host upgrade method as described above in the first aspect when executing the computer program.
In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the computer program implements the host upgrading method according to the first aspect.
The embodiment of the invention comprises the following steps: the method comprises the steps of obtaining the number of first virtual machines deployed by each host in a host cluster, and sequencing the hosts according to the number of the deployed first virtual machines from large to small to obtain a host queue, wherein the first virtual machines are virtual machines in a mutually exclusive group of virtual machines; according to the sequencing, sequentially determining an upgrading set to which the hosts in the host queue belong, wherein the hosts in the upgrading set do not have a mutual exclusion relationship, and the hosts with the mutual exclusion relationship cannot simultaneously carry out upgrading operation; and carrying out upgrading operation according to the upgrading set. The scheme of the embodiment of the invention can ensure that each host in the obtained upgrading set does not have mutual exclusion relationship, avoid destroying the backup relationship among the virtual machines, and simultaneously is beneficial to reducing the number of the upgrading sets, so that the upgrading efficiency of the cluster hosts can be improved when upgrading operation is carried out according to the upgrading sets.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a schematic diagram of a network architecture to which embodiments of the present invention are applicable;
fig. 2 is a flowchart of a host upgrading method according to an embodiment of the present invention;
FIG. 3 is a flow chart of sub-steps of step S120 in FIG. 1;
FIG. 4 is a flow chart of sub-steps of step S120 in FIG. 1;
FIG. 5 is a flow chart of sub-steps of step S124 in FIG. 3;
FIG. 6 is a flow chart of sub-steps of step S128 in FIG. 5;
FIG. 7 is a flow chart of sub-steps of step S128 in FIG. 5;
fig. 8 is a schematic structural diagram of a host upgrading apparatus according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be understood that in the description of the embodiments of the present invention, if there is any description of "first", "second", etc., it is only for the purpose of distinguishing technical features, and it is not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features. "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, and means that there may be three relationships, for example, a and/or B, and may mean that a exists alone, a and B exist simultaneously, and B exists alone. Wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" and similar expressions refer to any combination of these items, including any combination of singular or plural items. For example, at least one of a, b, and c may represent: a, b, c, a and b, a and c, b and c or a and b and c, wherein a, b and c can be single or multiple.
In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
For ease of understanding, a description of a network architecture to which embodiments of the present invention are applicable will first be provided.
Fig. 1 is a schematic diagram of a network architecture according to an embodiment of the present invention. The network architecture shown in fig. 1 includes a plurality of physical hosts, which form a cluster of hosts. One or more virtual machines are deployed in each host, and each virtual machine carries network element services.
In the related art, the mutual exclusion relationship of the virtual machines is defined by the mutual exclusion group (also referred to as the anti-affinity group) of the virtual machines, and the virtual machines in the mutual exclusion group of the virtual machines cannot be deployed on the same physical host. In general, virtual machines carrying the same service are deployed on different hosts, so that it is ensured that the service is not interrupted when a certain host is abnormally offline. For example, the virtual machines a1, a2 and a3 carrying the service a cannot be deployed on the same physical host, so the virtual machines a1, a2 and a3 may form a virtual machine mutual exclusion group vm-group (a1, a2 and a 3).
For example, according to the virtual machines respectively deployed in the multiple hosts in fig. 1 and the services carried by the virtual machines, the following mutually exclusive groups of virtual machines may be determined:
vm-group1(a1,a2,a3)；
vm-group2(b1,b2,b3)；
vm-group3(c1,c2)；
vm-group4(d1,d2,d3,d4)；
Vm-group5(e1,e2)。
as shown in fig. 1, virtual machines a1, a2, a3 carrying service a are correspondingly deployed in host1, host2, host 4; virtual machines b1, b2 and b3 carrying the service b are deployed in host hosts 1, host3 and host 4; virtual machines c1 and c2 carrying service c are deployed in host hosts 1 and 4; virtual machines d1, d2, d3 and d4 carrying the service d are deployed in a host1, a host2, a host4 and a host 5; virtual machines e1, e2 carrying service e are deployed in host hosts 3, host 4.
For example, the virtual machines c1 and c2 in fig. 1 are in a backup relationship with each other, and when one virtual machine is offline and does not provide service, the other virtual machine continues to provide service, so that the virtual machines c1 and c2 are in an exclusive relationship, and cannot be offline at the same time; host hosts 1 and host hosts 4 corresponding to the virtual machines c1 and c2 are also in a mutual exclusion relationship, and when the host needs to be upgraded offline, the host hosts 1 and host4 cannot be offline at the same time.
For example, virtual machines a1, a2, a3 in fig. 1 operate in a backup and load sharing manner, and any two of virtual machines a1, a2, a3 cannot be offline at the same time. In this way, the virtual machines a1, a2 and a3 are in an exclusive relationship, and when the hosts need to be upgraded offline, any two hosts of host1, host2 and host4 corresponding to the virtual machines a1, a2 and a3 cannot be simultaneously offline.
It can be understood that several virtual machines capable of being offline simultaneously in the upgrading process are determined by the backup relationship of such virtual machines, and if M + N backup is assumed, M + N virtual machines in the exclusive group of virtual machines can be restarted by less than or equal to N without affecting the service, otherwise, the backup/load sharing relationship of the service is destroyed, and the normal operation of the service is affected.
When the operating system of the host in the host cluster needs to be upgraded, under the condition of large number of hosts, if the method for upgrading the hosts one by off-line is adopted, obviously, the time is unacceptable, but if a plurality of hosts are off-line at the same time, the backup relationship among the virtual machines on the off-line hosts is difficult to ensure.
Embodiments of the present invention provide a host upgrading method and apparatus, an electronic device, and a storage medium, which can implement batch offline upgrading of a host without destroying backup relationships between virtual machines.
Referring to fig. 2, a host upgrading method according to an embodiment of the present invention is shown. As shown in fig. 2, an embodiment of the present invention includes the following method steps:
s110, acquiring the number of first virtual machines deployed by each host in the host cluster, and sequencing the hosts according to the number of the deployed first virtual machines from large to small to obtain a host queue, wherein the first virtual machines are virtual machines in a mutually exclusive group of virtual machines.
For example, the number of first virtual machines deployed by host1, host2, host3, host4, and host5 shown in fig. 1 is 4, 2, 5, and 1, and after the hosts are sorted according to the number of deployed first virtual machines from most to few, host sequences host4, host1, host2, host3, and host5 can be obtained.
And S120, sequentially determining the upgrading set to which the hosts in the host queue belong according to the sequencing, wherein the hosts in the upgrading set do not have a mutual exclusion relationship.
Referring to fig. 3, according to the sorting, sequentially determining the upgrade sets to which the hosts in the host queue belong may include the following steps:
s121, creating at least one upgrading set with sequence attributes.
For example, an upgrade set update-group1 may be created in advance; of course, a plurality of upgrade sets update-group1, update-group2, etc. may also be created in advance, which is not limited in this embodiment of the present invention.
It can be understood that the upgrade sets created in the embodiment of the present invention have an order attribute, and the order of each set may be determined according to the sequence number of the upgrade set name.
And S122, taking the host which is arranged at the head of the host queue at present as the current host.
For example, the hosts are sorted according to the number of times that each host appears in all the host sets, the obtained host queues are host4, host1, host2, host3 and host5, and the host currently ranked at the head of the host queue is host4, so host4 is taken as the current host.
And S123, determining the current upgrading set according to the sequence attribute of the upgrading set.
For example, update-group1 is determined to be the current upgrade set according to the order attribute of the upgrade set.
S124, determining whether the current host computer and other host computers in the current upgrading set have no mutual exclusion relationship, if so, executing the step S125; if not, determining that the current host has a mutual exclusion relationship with other hosts in the current upgrade set, and executing step S126.
S125, determining the current upgrading set as the upgrading set to which the current host belongs, deleting the current host from the host queue, and returning to execute the step S122.
It is understood that when it is determined that the current host does not have a mutual exclusion relationship with other hosts to which the current set has been determined as the upgrade set to which the current host belongs, the current upgrade set is determined as the upgrade set to which the current host belongs.
It can be understood that, after the upgrade set to which the current host belongs is determined, the current host is deleted from the host queue, and the process returns to step S122, and a new current host is determined in the host queue after the current host is deleted, so as to achieve the purpose of sequentially determining the upgrade set to which the hosts of the host queue belong.
S126, taking the next upgrading set of the current upgrading set as the current upgrading set, and returning to execute the step S124.
It can be understood that if the current host has a mutual exclusion relationship with other hosts that have determined the current set as the upgrade set to which the current host belongs, the current host is determined not to belong to the current upgrade set, and the next upgrade set of the current upgrade set is taken as the current upgrade set, and the process returns to execute step S124 to re-determine the upgrade set of the current host.
In the embodiment of the invention, the upgrading set belonging to each host in the host queue is determined based on sequencing, if the upgrading set is not determined based on sequencing, the hosts in the host queue are randomly selected each time to perform upgrading set determination, different random sequences inevitably generate different set results, the obtained sets are different in number, possible sequences are divided into 10 groups, and other sequences are divided into 20 groups. In order to realize the batch upgrading of the hosts according to the upgrading set, obviously, the smaller the number of sets, the better, and thus, the upgrading time can be saved.
In general, the greater the number of first virtual machines residing on a host, the more difficult it is to insert into an existing set when making upgrade set determinations. Therefore, the embodiment of the invention determines the upgrading sets to which the hosts in the host queue belong in sequence based on the sorting, and can place the hosts with less resident first virtual machines in the same set as much as possible, thereby achieving the purpose of reducing the number of finally obtained upgrading sets.
Referring to FIG. 4, in some embodiments, before taking the next upgrade set of the current upgrade set as the current upgrade set, the method further comprises the steps of:
s126a, judging whether the current upgrade set has a next upgrade set;
s126b, under the condition that the current upgrading set has no next upgrading set, creating a new upgrading set as a next upgrading set.
Before determining whether the current host has no mutual exclusion relationship with other hosts in the current upgrade set, the method may further include the steps of: and aiming at each virtual machine mutual exclusion group, obtaining a host set corresponding to the virtual machine mutual exclusion group according to the mapping relation between the first virtual machine in the virtual machine mutual exclusion group and the host.
For example, according to the mapping relationship between the virtual machines and the hosts shown in fig. 1, the mutually exclusive group of virtual machines is mapped to the following host sets:
vm-host-group1(host1,host2,host4)；
vm-host-group2(host1,host3,host4)；
vm-host-group3(host1,host4)；
vm-host-group4(host1,host2,host4,host5)；
vm-host-group5(host3,host4)。
referring to fig. 5, after obtaining the host set corresponding to the mutually exclusive group of the virtual machine, determining whether there is no mutually exclusive relationship between the current host and other hosts in the current upgrade set may specifically be implemented by the following steps:
and S127, adding the current host into the current upgrading set.
And S128, comparing the current upgrading set added into the current host with each host set respectively.
S129a, judging whether the comparison results of the current upgrade set and all the host sets meet the non-exclusive condition, if yes, executing step S129b, if no, indicating that the comparison results of the current upgrade set and any host set do not meet the non-exclusive condition, and executing step S129 c.
S129b, determining that the current host does not have a mutual exclusion relationship with other hosts in the current upgrade set.
S129c, determining that the current host has mutual exclusion relation with other hosts in the current upgrading set, and deleting the current host from the current upgrading set.
It can be understood that the current upgrade set added to the current host is compared with each host set obtained before, so as to determine whether the current host and other hosts in the current upgrade set have mutual exclusion relationship or mutual exclusion relationship according to each comparison result. And under the condition that the comparison results of the current upgrading set and all the host sets meet the non-mutual exclusion condition, determining that the current host and other hosts in the current upgrading set do not have a mutual exclusion relationship, otherwise, determining that the mutual exclusion relationship exists.
Referring to fig. 6, comparing the current upgrade set added to the current host with each host set respectively includes:
s1281a, acquiring the number of hosts in the intersection of the host set and the current upgrading set added into the current host for each host set;
s1281b, judging whether the number of the hosts in the intersection is less than or equal to a first preset threshold value, if so, executing a step S1281 c; if not, executing step S1281 d;
s1281c, determining that the comparison result of the current upgrade set and the host set meets the non-mutual exclusion condition;
s1281d, determining that the comparison result of the current upgrade set and the host set does not satisfy the non-exclusive condition.
For example, assuming that the current upgrade set is update-group3(host2, host3), the first preset threshold is 1, the update-group3 is compared with the host set vm-host-group1(host1, host2, host4), and the intersection of the update-group3 and vm-host-group1 is host2, so that the number of hosts in the intersection is 1, which is less than or equal to the first preset threshold 1, and the comparison result between the update-group3 and vm-host-group1 satisfies the non-exclusive condition.
For example, assuming that the current upgrade set is update-group1(host4, host1), the first preset threshold is 1, the update-group1 is compared with the host set vm-host-group1(host1, host2, host4), and the intersection of update-group1 and vm-host-group1 is (host4, host1), so that the number of hosts in the intersection is determined to be 2, which is greater than the first preset threshold 1, and therefore the comparison result between update-group1 and vm-host-group1 does not satisfy the non-mutual exclusion condition. It can be understood that as long as the comparison result between the current upgrade set and any host set does not satisfy the non-exclusive condition, it can be determined that the current host has an exclusive relationship with other hosts in the current upgrade set, so that host1 has an exclusive relationship with host4, and host1 added later is deleted from update-group 1.
It is understood that the value of the first preset threshold may be different when the current upgrade set is compared with a different host set. The value of the first preset threshold may be adjusted according to the backup ratio requirement of each host set, and is not limited specifically here.
In some application scenarios, one service needs to be completed by multiple virtual machines in a coordinated manner, and in this case, the coordinated virtual machines cannot be offline at the same time. By way of example, service d requires two virtual machines to be executed in cooperation, specifically, by virtual machines d1 and d3 in fig. 1, or by virtual machines d2 and d4 in fig. 1. In this case, virtual machines d1 and d3 may go offline at the same time, and when virtual machines d1 and d3 go offline, service d is executed cooperatively by virtual machines d2 and d 4; similarly, virtual machines d2 and d4 can go offline at the same time, and when virtual machines d2 and d4 go offline, service d is executed by virtual machines d1 and d3 in cooperation. It will be appreciated that either of virtual machines d2 and d4 and d1 cannot be taken offline at the same time, and that either of virtual machines d2 and d4 and d3 cannot be taken offline at the same time.
For an application scenario in which a plurality of virtual machines cooperatively complete a service, a first virtual machine may be divided into a plurality of upgrade domains in a virtual machine mutex group corresponding to the service, the virtual machines in the same upgrade domain may be upgraded offline at the same time, and the virtual machines in different upgrade domains may not be upgraded offline at the same time, for example, the upgrade domains are divided in an original virtual machine mutex group vm-group4(d1, d2, d3, d4) to obtain a new virtual machine mutex group vm-group4(d1, d3), (d2, d 4)).
When the mutually exclusive group of virtual machines includes a plurality of upgrade domains, the set of hosts corresponding to the mutually exclusive group of virtual machines includes a subset of hosts corresponding to the upgrade domains, the subset of hosts including a host corresponding to a first virtual machine in the upgrade domain. As an example, the host set corresponding to the virtual machine mutex group vm-group4(d1, d3), (d2, d4)) is vm-host-group4((host1, host4), (host2, host5)), and the host set includes two host subsets (host1, host4) and (host2, host 5).
Referring to fig. 7, when the host set includes the host subset, comparing the current upgrade set added to the current host with each host set respectively may include the following steps:
s1282a, aiming at each host set, acquiring the number of host subsets with intersection between the host set and the current upgrading set added into the current host;
s1282b, judging whether the number of the host subsets with intersection is less than or equal to a second preset threshold, if so, executing a step S1282 c; if not, go to step S1282 d;
s1282c, determining that the comparison result of the current upgrade set and the host set meets the non-mutual exclusion condition;
s1282d, determining that the comparison result of the current upgrade set and the host set does not satisfy the non-exclusive condition.
For example, assuming that the current upgrade set is update-group1(host4, host1), the second preset threshold is 1, the update-group1 is compared with the host set vm-host-group4((host1, host4), (host2, host5)), only a subset (host1, host4) in the vm-host-group4 intersects with the update-group1, so that the number of host subsets with the intersection is determined to be 1, which is less than or equal to the second preset threshold 1, and the comparison result between the update-group1 and the vm-host-group4 satisfies the condition of non-mutual exclusion.
For example, assuming that the current upgrade set is update-group1(host4, host2), the second preset threshold is 1, and the subset (host1, host4) in vm-host-group4 and update-group1 have an intersection host4, and the subset (host2, host5) and update-group1 have an intersection host2, thereby determining that the number of host subsets having an intersection is 2 and is greater than the first preset threshold 1, so that the comparison result between update-group1 and vm-host-group4 does not satisfy the non-exclusive condition, and deleting the post-added host2 from update-group 1.
It is understood that the number of first virtual machines in the upgrade domain may be one or more.
According to the network architecture shown in fig. 1 as an example, the first virtual machine that independently completes the service may also be determined as an upgrade domain, so that the mutually exclusive group of virtual machines may be set as follows:
vm-group1((a1),(a2),(a3))；
vm-group2((b1),(b2),(b3))；
vm-group3((c1),(c2))；
vm-group4((d1,d3),(d2,d4))；
Vm-group5((e1),(e2))。
according to the mapping relationship between the virtual machines and the hosts shown in fig. 1, the above mutually exclusive group of virtual machines can be mapped into the following host sets:
vm-host-group1((host1),(host2),(host4))；
vm-host-group2((host1),(host3),(host4))；
vm-host-group3((host1),(host4))；
vm-host-group4((host1,host4),(host2,host5))；
vm-host-group5((host3),(host4))。
it is understood that the preset threshold may be adjusted according to the backup ratio requirement of each host set. For example, the current host set allows a maximum 50% percentage of hosts to go offline, and assuming the current host set has 4 subsets of hosts, the threshold may be set to 2.
The following describes in detail a flow of determining an upgrade set to which hosts in a host queue belong in turn according to an example, where the example includes the following steps:
s201, creating an upgrade set update-group 1;
s202, sorting the hosts according to the occurrence frequency of each host in all the host sets, wherein the obtained host queues are host4, host1, host2, host3 and host5, and the host4 which is currently arranged at the head of the host queue is used as the current host;
s203, determining update-group1 as the current upgrading set according to the sequence attribute of the upgrading set;
s204, adding the current host4 into the update-group1 to obtain an update-group1(host 4);
s205, no other host exists in the current update-group1, so that the upgrading set to which the host4 belongs is determined to be update-group 1;
s206, after determining the upgrading set to which host4 belongs, deleting host4 from the host queue;
s207, after host4 is deleted from the host queue, the host queue is updated to host1, host2, host3 and host5, and host1 which is arranged at the head of the host queue at present is used as the current host;
s208, adding the current host1 into the update-group1 to obtain an update-group1(host4, host 1);
s209, in the update-group1(host4, host1), the host4 and the host1 have an exclusive relationship, so that the host4 is deleted from the update-group1, a new update set update-group2 is created because the update-group1 has no next update set, the host1 is added into the update-group2 to obtain an update-group2(host1), and the update set to which the host1 belongs is determined to be the update-group 2;
s210, after determining the upgrading set to which host1 belongs, deleting host1 from the host queue;
s211, after host1 is deleted from the host queue, the host queue is updated to host2, host3 and host5, and host2 which is arranged at the head of the host queue at present is used as the current host;
s212, adding the current host2 into the update-group1 to obtain an update-group1(host4, host 2);
s213, the host2 and the host4 have an exclusive relationship, so that the host2 is deleted from the update-group1, the next update-group2 of the current update-group1 is used as the current update set, and the host2 is added into the update-group2 to obtain the update-group2(host1 and host 2);
s214, the host2 and the host1 have an exclusive relationship, so that the host2 is deleted from the update-group2, a new update-group3 is created because the update-group2 has no next update set, the host1 is added into the update-group3 to obtain the update-group3(host2), and the update set to which the host2 belongs is determined to be the update-group 3;
s215, after the upgrading set to which host2 belongs is determined, deleting host2 from the host queue;
s215, after host2 is deleted from the host queue, the host queue is updated to host3 and host5, and host3 which is arranged at the head of the host queue at present is used as the current host;
s216, adding the current host3 into the update-group1 to obtain an update-group1(host4, host 3);
s217, the host3 and the host4 have an exclusive relationship, so that the host3 is deleted from the update-group1, the next update-group2 of the current update-group1 is used as the current update set, and the host3 is added into the update-group2 to obtain the update-group2(host1 and host 3);
s218, the host3 and the host1 have an exclusive relationship, so that the host3 is deleted from the update-group2, the next update-group3 of the current update-group2 is used as the current update set, and the host3 is added into the update-group3 to obtain the update-group3(host2 and host 3);
s219, determining that the upgrade set to which the host2 belongs is update-group3 if the host3 and the host2 do not have a mutual exclusion relationship;
s220, after the upgrading set to which host3 belongs is determined, host3 is deleted from the host queue;
s221, after host3 is deleted from the host queue, the host queue is updated to host5, and host5 which is arranged at the head of the host queue at present is used as the current host;
s222, adding the current host5 into the update-group1 to obtain an update-group1(host4, host 5);
s223, the host5 and the host4 have an exclusive relationship, so that the host5 is deleted from the update-group1, the next update-group2 of the current update-group1 is used as the current update set, and the host5 is added into the update-group2 to obtain the update-group2(host1 and host 5);
s224, the host5 and the host1 have mutual exclusion relation, so that the host5 is deleted from the update-group2, the next update-group3 of the current update-group2 is used as the current update set, and the host5 is added into the update-group3 to obtain the update-group3(host2, host3 and host 5);
and S225, the host5, the host2 and the host3 do not have mutual exclusion relation, and the upgrade set to which the host5 belongs is determined to be update-group 3.
After the upgrade sets of all the hosts in the host queue are determined, upgrade sets of update-group1(host4), update-group2(host1) and update-group3(host2, host3 and host5) are obtained.
And S130, carrying out upgrading operation according to the upgrading set.
It can be understood that, in the embodiment of the present invention, each upgrade operation is performed on only one upgrade set, and hosts that do not belong to the same upgrade set cannot perform the upgrade operation simultaneously. For example, there are currently upgrade sets update-group1(host4), update-group2(host1), update-group3(host2, host3, and host5), and each upgrade operation is performed only on any one of update-group1, update-group2, and update-group 3. Therefore, hosts which do not belong to the same upgrading set can not simultaneously carry out upgrading operation, the hosts which are simultaneously upgraded off line are ensured not to have mutual exclusion relationship, and the backup relationship among the virtual machines is prevented from being damaged.
Referring to fig. 8, an embodiment of the present invention further provides a host upgrading apparatus, including:
the sorting module 310 is configured to obtain the number of first virtual machines deployed by each host in the host cluster, and sort the hosts according to the number of the deployed first virtual machines from high to low to obtain a host queue, where the first virtual machines are virtual machines in a mutually exclusive group of virtual machines;
the determining module 320 is configured to sequentially determine, according to the sorting, an upgrade set to which the hosts in the host queue belong, where there is no mutual exclusion relationship between the hosts in the upgrade set, and the hosts in the mutual exclusion relationship cannot perform upgrade operations at the same time;
and the upgrading module 330 is configured to perform upgrading operation according to the upgrading set.
It is understood that the determining module 320 further includes:
a creating unit for creating at least one upgrade set having sequential attributes;
the first determining unit is used for taking the host which is arranged at the head of the host queue at present as the current host;
the second determining unit is used for determining the current upgrading set according to the sequence attribute of the upgrading set;
a third determining unit, configured to determine whether a mutual exclusion relationship exists between the current host and another host in the current upgrade set; under the condition that the current host computer and other host computers in the current upgrading set do not have mutual exclusion relationship, determining the current upgrading set as the upgrading set to which the current host computer belongs, deleting the current host computer from the host computer queue, and returning to execute the step of taking the host computer which is currently arranged at the head of the host computer queue as the current host computer;
and the third determining unit is further configured to, when the current host has a mutual exclusion relationship with other hosts in the current upgrade set, take a next upgrade set of the current upgrade set as the current upgrade set, and return to perform the step of determining whether the current host has a mutual exclusion relationship with other hosts in the current upgrade set.
It is to be understood that the creating unit is further configured to: and under the condition that the current upgrading set has no next upgrading set, creating a new upgrading set as a next upgrading set.
It is to be understood that the determining module further includes:
and the mapping unit is used for obtaining a host set corresponding to the mutually exclusive group of the virtual machines according to the mapping relation between the first virtual machine in the mutually exclusive group of the virtual machines and the host.
It is to be understood that the third determining unit further includes:
the comparison subunit is used for respectively comparing the current upgrade set added into the current host with each host set;
the determining subunit is used for determining that the mutual exclusion relationship does not exist between the current host and other hosts in the current upgrading set under the condition that the comparison results of the current upgrading set and all the host sets meet the non-mutual exclusion condition;
and the determining subunit is further configured to determine that the current host has a mutual exclusion relationship with other hosts in the current upgrade set and delete the current host from the current upgrade set, when the comparison result between the current upgrade set and any host set does not satisfy the non-mutual exclusion condition.
It is to be understood that the comparison subunit is specifically configured to:
aiming at each host set, acquiring the number of hosts in the intersection of the host set and the current upgrading set added with the current host;
under the condition that the number of the hosts in the intersection is less than or equal to a first preset threshold value, determining that the comparison result of the current upgrading set and the host set meets a non-mutual exclusion condition; and under the condition that the number of the hosts in the intersection is larger than a first preset threshold value, determining that the comparison result of the current upgrading set and the host set does not meet the non-exclusive condition.
It can be understood that the mutually exclusive group of virtual machines includes a plurality of upgrade domains, and each upgrade domain includes at least one first virtual machine; the set of hosts corresponding to the mutually exclusive set of virtual machines includes a subset of hosts corresponding to the upgrade domain, the subset of hosts including a host corresponding to a first virtual machine in the upgrade domain.
It is to be understood that the comparison subunit is specifically configured to:
aiming at each host set, acquiring the number of host subsets with intersection between the host set and the current upgrading set added into the current host;
under the condition that the number of the host subsets is less than or equal to a second preset threshold value, determining that the comparison result of the current upgrading set and the host set meets a non-mutual exclusion condition;
and under the condition that the number of the host subsets is greater than a second preset threshold value, determining that the comparison result of the current upgrading set and the host set does not meet the non-mutual exclusion condition.
It should be noted that, because the contents of information interaction, execution process, and the like between the modules are based on the same concept as the method embodiment of the present invention, specific functions and technical effects thereof may be referred to specifically in the method embodiment section, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Referring to fig. 9, an electronic device 400 according to an embodiment of the present invention is shown, including: memory 410, processor 420, and computer programs stored on memory 410 and executable on processor 420.
The processor 420 and the memory 410 may be connected by a bus or other means.
The memory 410, which is a non-transitory computer-readable storage medium, may be used to store non-transitory software programs as well as non-transitory computer-executable programs. Further, the memory 410 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory optionally includes memory located remotely from the processor 420, and such remote memory may be coupled to the processor 420 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The non-transitory software programs and instructions necessary to implement the host upgrade method of the above-described embodiments are stored in the memory 410 and, when executed by the processor 420, perform the host upgrade method of the above-described embodiments, e.g., perform the steps of any of the embodiments shown in fig. 2 to 7.
The above-described embodiments of the apparatus are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may also be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
Furthermore, an embodiment of the present invention also provides a computer-readable storage medium, which stores a computer program, which is executed by a processor or a controller, and when the computer program is executed by the processor or the controller, the host upgrade method in the above-described embodiment is performed, for example, the steps in any one of the embodiments shown in fig. 2 to 7 are performed.
One of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the foregoing and various other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention.
Claims (14)
1. A host upgrade method, the method comprising:
the method comprises the steps of obtaining the number of first virtual machines deployed by each host in a host cluster, and sequencing the hosts according to the number of the deployed first virtual machines from large to small to obtain a host queue, wherein the first virtual machines are virtual machines in a mutually exclusive group of virtual machines;
according to the sequencing, sequentially determining an upgrading set to which the hosts in the host queue belong, wherein the hosts in the upgrading set do not have a mutual exclusion relationship, and the hosts with the mutual exclusion relationship cannot simultaneously carry out upgrading operation;
and carrying out upgrading operation according to the upgrading set.
2. The method of claim 1, wherein determining, in order according to the ranking, an upgrade set to which the hosts in the host queue belong comprises:
creating at least one upgrade set having sequential attributes;
taking the host which is currently arranged at the head of the host queue as a current host;
determining a current upgrading set according to the sequence attribute of the upgrading set;
determining whether the current host has a mutual exclusion relationship with other hosts in the current upgrade set;
under the condition that the current host computer and other host computers in the current upgrading set do not have mutual exclusion relationship, determining the current upgrading set as the upgrading set to which the current host computer belongs, deleting the current host computer from the host computer queue, and returning to execute the step of taking the host computer which is currently arranged at the head of the host computer queue as the current host computer;
and under the condition that the current host computer and other host computers in the current upgrading set have mutual exclusion relationship, taking the next upgrading set of the current upgrading set as the current upgrading set, and returning and executing the step of determining whether the current host computer and other host computers in the current upgrading set have mutual exclusion relationship.
3. The method of claim 2, further comprising, before considering a next upgrade set of the current upgrade set as a current upgrade set:
and under the condition that the current upgrading set has no next upgrading set, creating a new upgrading set as a next upgrading set.
4. The method of claim 2, wherein prior to determining whether the current host has a mutually exclusive relationship with other hosts in the current upgrade set, the method further comprises:
aiming at each virtual machine mutual exclusion group, obtaining a host set corresponding to the virtual machine mutual exclusion group according to the mapping relation between the first virtual machine in the virtual machine mutual exclusion group and the host;
the determining whether the current host has a mutual exclusion relationship with other hosts in the current upgrade set includes:
adding the current host to the current upgrade set;
respectively comparing the current upgrading set added into the current host with each host set;
under the condition that the comparison results of the current upgrading set and all the host sets meet the non-mutual exclusion condition, determining that the current host does not have a mutual exclusion relationship with other hosts in the current upgrading set;
and under the condition that the comparison result of the current upgrading set and any host set does not meet the non-exclusive condition, determining that the current host has exclusive relation with other hosts in the current upgrading set, and deleting the current host from the current upgrading set.
5. The method of claim 4, wherein comparing the current upgrade set after joining the current host with each host set separately comprises:
aiming at each host set, acquiring the number of hosts in the intersection of the host set and the current upgrading set added with the current host;
under the condition that the number of the hosts in the intersection is less than or equal to a first preset threshold value, determining that the comparison result of the current upgrading set and the host set meets a non-mutual exclusion condition;
and under the condition that the number of the hosts in the intersection is larger than the first preset threshold, determining that the comparison result of the current upgrading set and the host set does not meet a non-mutual exclusion condition.
6. The method of claim 4, wherein the mutually exclusive set of virtual machines comprises a plurality of upgrade domains, the upgrade domains comprising at least one first virtual machine; the set of hosts corresponding to the mutually exclusive set of virtual machines comprises a subset of hosts corresponding to the upgrade domain, the subset of hosts comprising hosts corresponding to a first virtual machine in the upgrade domain;
the step of comparing the current upgrade set added to the current host with each host set respectively comprises the following steps:
aiming at each host set, acquiring the number of the host subsets with intersection between the host set and the current upgrading set added into the current host;
under the condition that the number of the host subsets is less than or equal to a second preset threshold value, determining that the comparison result of the current upgrading set and the host set meets a non-mutual exclusion condition;
and under the condition that the number of the host subsets is greater than the second preset threshold value, determining that the comparison result of the current upgrading set and the host set does not meet a non-exclusive condition.
7. A host upgrade apparatus, characterized in that the apparatus comprises:
the system comprises a sequencing module, a queue module and a queue module, wherein the sequencing module is used for acquiring the number of first virtual machines deployed by each host in a host cluster, and sequencing the hosts according to the number of the deployed first virtual machines from large to small to obtain a host queue, and the first virtual machines are virtual machines in a mutually exclusive group of virtual machines;
a determining module, configured to sequentially determine, according to the sorting, an upgrade set to which the hosts in the host queue belong, where no mutual exclusion relationship exists among the hosts in the upgrade set, and the hosts in the mutual exclusion relationship cannot perform upgrade operations at the same time;
and the upgrading module is used for carrying out upgrading operation according to the upgrading set.
8. The apparatus of claim 7, wherein the determining module comprises:
a creating unit for creating at least one upgrade set having sequential attributes;
a first determining unit, configured to use the host currently queued at the head of the host queue as a current host;
the second determining unit is used for determining the current upgrading set according to the sequence attribute of the upgrading set;
a third determining unit, configured to determine whether the current host and other hosts in the current upgrade set have a mutual exclusion relationship; under the condition that the current host computer and other host computers in the current upgrading set do not have mutual exclusion relationship, determining the current upgrading set as the upgrading set to which the current host computer belongs, deleting the current host computer from the host computer queue, and returning to execute the step of taking the host computer which is currently arranged at the head of the host computer queue as the current host computer;
the third determining unit is further configured to, when the current host has a mutual exclusion relationship with other hosts in the current upgrade set, use a next upgrade set of the current upgrade set as the current upgrade set, and return to perform the step of determining whether the current host has a mutual exclusion relationship with other hosts in the current upgrade set.
9. The apparatus of claim 8, wherein the creating unit is further configured to: and under the condition that the current upgrading set has no next upgrading set, creating a new upgrading set as a next upgrading set.
10. The apparatus of claim 8, wherein the determining module further comprises:
the mapping unit is used for obtaining a host set corresponding to the virtual machine mutual exclusion group according to the mapping relation between the first virtual machine in the virtual machine mutual exclusion group and the host for each virtual machine mutual exclusion group;
the third determining unit includes:
the comparison subunit is used for respectively comparing the current upgrade set added into the current host with each host set;
a determining subunit, configured to determine that the current host does not have a mutual exclusion relationship with other hosts in the current upgrade set when the comparison results of the current upgrade set and all the host sets all satisfy a non-mutual exclusion condition;
the determining subunit is further configured to determine that the current host has a mutual exclusion relationship with other hosts in the current upgrade set and delete the current host from the current upgrade set, when a comparison result between the current upgrade set and any one of the host sets does not satisfy a non-mutual exclusion condition.
11. The apparatus according to claim 10, wherein the comparing subunit is specifically configured to:
aiming at each host set, acquiring the number of hosts in the intersection of the host set and the current upgrading set added with the current host;
under the condition that the number of the hosts in the intersection is less than or equal to a first preset threshold value, determining that the comparison result of the current upgrading set and the host set meets a non-mutual exclusion condition; and under the condition that the number of the hosts in the intersection is larger than the first preset threshold, determining that the comparison result of the current upgrading set and the host set does not meet a non-mutual exclusion condition.
12. The apparatus of claim 10, wherein the mutually exclusive set of virtual machines comprises a plurality of upgrade domains, the upgrade domains comprising at least one first virtual machine; the set of hosts corresponding to the mutually exclusive set of virtual machines comprises a subset of hosts corresponding to the upgrade domain, the subset of hosts comprising hosts corresponding to a first virtual machine in the upgrade domain;
the comparison subunit is specifically configured to:
aiming at each host set, acquiring the number of the host subsets with intersection between the host set and the current upgrading set added into the current host;
under the condition that the number of the host subsets is less than or equal to a second preset threshold value, determining that the comparison result of the current upgrading set and the host set meets a non-mutual exclusion condition;
and under the condition that the number of the host subsets is greater than the second preset threshold value, determining that the comparison result of the current upgrading set and the host set does not meet a non-exclusive condition.
13. An electronic device, comprising: memory, processor and computer program stored on the memory and executable on the processor, the processor implementing the host upgrade method according to any one of claims 1 to 6 when executing the computer program.
14. A computer-readable storage medium storing a computer program which, when executed by a processor, implements a host upgrade method as claimed in any one of claims 1 to 6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110081840.5A CN114816462A (en) | 2021-01-21 | 2021-01-21 | Host upgrading method and device, electronic equipment and storage medium |
| PCT/CN2021/094658 WO2022156099A1 (en) | 2021-01-21 | 2021-05-19 | Host upgrade method and apparatus, and electronic device and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110081840.5A CN114816462A (en) | 2021-01-21 | 2021-01-21 | Host upgrading method and device, electronic equipment and storage medium |
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| CN114816462A true CN114816462A (en) | 2022-07-29 |
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| CN106354531B (en) * | 2016-08-25 | 2020-03-27 | 杭州华为数字技术有限公司 | Physical node upgrading method and device |
| CN108268301B (en) * | 2016-12-30 | 2021-09-03 | 中国移动通信集团上海有限公司 | Virtual machine deployment method and device for virtual network function |
| WO2020062057A1 (en) * | 2018-09-28 | 2020-04-02 | 华为技术有限公司 | Host upgrade method and device |
| US11231951B2 (en) * | 2018-12-19 | 2022-01-25 | Vmware, Inc. | Fault tolerant hyper-converged infrastructure upgrades in an environment with no additional physical infrastructure |
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