CN109379158A - Time synchronization method, device and equipment for newly added nodes in storage cluster - Google Patents
Time synchronization method, device and equipment for newly added nodes in storage cluster Download PDFInfo
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- CN109379158A CN109379158A CN201811504740.3A CN201811504740A CN109379158A CN 109379158 A CN109379158 A CN 109379158A CN 201811504740 A CN201811504740 A CN 201811504740A CN 109379158 A CN109379158 A CN 109379158A
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- 230000001360 synchronised effect Effects 0.000 description 5
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
- H04J3/0658—Clock or time synchronisation among packet nodes
- H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
- H04J3/0667—Bidirectional timestamps, e.g. NTP or PTP for compensation of clock drift and for compensation of propagation delays
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Abstract
The application discloses a time synchronization method for newly added nodes in a storage cluster, which is applied to the newly added nodes and comprises the following steps: before the newly added node is added into the storage cluster, the cluster time of a main node in the storage cluster is obtained; setting the system time of the newly added node according to the cluster time; and after the newly added node is added into the storage cluster, starting an NTP service process which takes the main node as a time server. According to the method and the device, the system time of the newly added node is roughly adjusted before the newly added node is added into the storage cluster, the adjusting time spent in time synchronization of the subsequent NTP service is shortened, the processing efficiency of time synchronization of the expanded node is improved on the whole, normal operation of the expanded node is guaranteed, and user experience is improved. The application also discloses a time synchronization device, equipment and a computer readable storage medium for storing the newly added nodes in the cluster, and the beneficial effects are also achieved.
Description
Technical field
This application involves technical field of distributed memory, in particular to the time synchronization of node is increased in a kind of storage cluster newly
Method, apparatus, equipment and computer readable storage medium.
Background technique
With cloud computing and the rapid development of big data technology and application, traditional storage system can no longer meet user
Demand is supported the distributed mass memory system application of dynamic capacity extension and is given birth to.Since distributed storage cluster is in cluster
Therefore the requirement with higher of the time consistency of each node generally uses NTP (Network Time in the prior art
Protocol, Network Time Protocol) service solves by the stationary problem of dilatation node and cluster time.However, due to NTP's
Adjusting accuracy is Millisecond, therefore, when larger by the system time of dilatation node and cluster time phase difference, will be spent very
Long regulating time, for example, one day even more long, will affect by the normal operation of respective services in dilatation node.In consideration of it, mentioning
It is that those skilled in the art need concern for a kind of solution to the problems described above.
Summary of the invention
The application be designed to provide the method for synchronizing time for increasing node in a kind of storage cluster newly, device, equipment and
Computer readable storage medium ensures to effectively improve to the treatment effeciency for being carried out time synchronization by dilatation node by dilatation
The normal operation of node, and then improve user experience.
In order to solve the above technical problems, in a first aspect, this application discloses the times for increasing node in a kind of storage cluster newly
Synchronous method is applied to the newly-increased node, comprising:
Before the storage cluster is added in the newly-increased node, the cluster time of host node in the storage cluster is obtained；
The system time of the newly-increased node is set according to the cluster time；
After the storage cluster is added in the newly-increased node, enables and taken by the NTP of time server of the host node
Business process.
Optionally, it is described the system time of the newly-increased node is arranged according to the cluster time before, further includes:
Obtain the original system time of the newly-increased node；
Calculate the difference of the cluster time Yu the original system time；
Judge whether the difference is greater than preset threshold；
If so, the step of executing the system time that the newly-increased node is arranged according to the cluster time；
If it is not, then execute it is described after the storage cluster is added in the newly-increased node, enable using the host node as when
Between server NTP service processes the step of.
Optionally, after determining that the difference is greater than the preset threshold, described institute is arranged according to the cluster time
Before the system time for stating newly-increased node, further includes:
Reacquire the host node updated cluster time.
Optionally, the preset threshold is 1s.
Optionally, it is described the system time of the newly-increased node is arranged according to the cluster time after, further includes:
Increase the hardware timeout of node newly according to the system time setting.
Second aspect, disclosed herein as well is the time synchronism apparatus for increasing node in a kind of storage cluster newly, are applied to institute
State newly-increased node, comprising:
Module is obtained, for obtaining main section in the storage cluster before the storage cluster is added in the newly-increased node
The cluster time of point；
Configuration module, for the system time of the newly-increased node to be arranged according to the cluster time；
Module is enabled, for enabling using the host node as the time after the storage cluster is added in the newly-increased node
The NTP service processes of server.
It optionally, further include judgment module, for obtaining the original system time of the newly-increased node, when calculating the cluster
Between difference with the original system time, and judge whether the difference is greater than preset threshold；So that the configuration module is in institute
When stating difference greater than the threshold value, the system time of the newly-increased node is set according to the cluster time.
Optionally, the configuration module is also used to: it is described according to the cluster time the newly-increased node is set be
It unites after the time, increases the hardware timeout of node newly according to the system time setting.
The third aspect, disclosed herein as well is the time synchronism equipments for increasing node in a kind of storage cluster newly, are applied to institute
State newly-increased node, comprising:
Memory, for storing computer program；
Processor is realized in any storage cluster as described above for executing the computer program and increases node newly
Method for synchronizing time the step of.
Fourth aspect, disclosed herein as well is a kind of computer readable storage medium, the computer readable storage medium
In be stored with computer program, to realize that any storage as described above collects when the computer program is executed by processor
The step of increasing the method for synchronizing time of node in group newly.
The method for synchronizing time for increasing node in storage cluster provided herein newly is applied to the newly-increased node, packet
It includes: before the storage cluster is added in the newly-increased node, obtaining the cluster time of host node in the storage cluster；According to institute
State the system time that the newly-increased node is arranged in the cluster time；After the storage cluster is added in the newly-increased node, enable with
The host node is the NTP service processes of time server.As it can be seen that the application passes through before storage cluster is added in newly-increased node
The system time of newly-increased node is adjusted roughly, i.e., the system time of newly-increased node is directly changed to cluster time, pole
The earth reduces the error of newly-increased node system time, spent when time synchronization to also shorten subsequent NTP service
Adjusting duration, and then improve on the whole to by dilatation node carry out time synchronization treatment effeciency, ensure by dilatation section
The normal operation of point, improves user experience.It increases the time synchronism apparatus of node in storage cluster provided herein newly, set
The method for synchronizing time for increasing node in above-mentioned storage cluster newly may be implemented in standby and computer readable storage medium, equally has upper
State beneficial effect.
Detailed description of the invention
In order to illustrate more clearly of the technical solution in the prior art and the embodiment of the present application, below will to the prior art and
Attached drawing to be used is needed to make brief introduction in the embodiment of the present application description.Certainly, in relation to the attached drawing of the embodiment of the present application below
A part of the embodiment in only the application of description is not paying creativeness to those skilled in the art
Under the premise of labour, other attached drawings can also be obtained according to the attached drawing of offer, other accompanying drawings obtained also belong to the application
Protection scope.
Fig. 1 is a kind of specific embodiment in the method for synchronizing time for increase newly in storage cluster provided herein node
Flow chart；
Fig. 2 is another specific embodiment party in the method for synchronizing time for increase newly in storage cluster provided herein node
The flow chart of formula；
Fig. 3 is the structural block diagram for increasing the time synchronism apparatus of node in a kind of storage cluster provided herein newly.
Specific embodiment
The core of the application be to provide the method for synchronizing time for increasing node in a kind of storage cluster newly, device, equipment and
Computer readable storage medium ensures to effectively improve to the treatment effeciency for being carried out time synchronization by dilatation node by dilatation
The normal operation of node, and then improve user experience.
In order to which technical solutions in the embodiments of the present application is more clearly and completely described, below in conjunction with this Shen
Please attached drawing in embodiment, technical solutions in the embodiments of the present application is introduced.Obviously, described embodiment is only
Some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall in the protection scope of this application.
The embodiment of the present application discloses the method for synchronizing time for increasing node in a kind of storage cluster newly, is applied to described newly-increased
Node, shown referring to Fig.1, this method mainly comprises the steps that
S11: before storage cluster is added in newly-increased node, the cluster time of host node in storage cluster is obtained.
S12: the system time of newly-increased node is set according to the cluster time.
S13: it after storage cluster is added in newly-increased node, enables using host node as the NTP service processes of time server.
Method for synchronizing time provided herein can specifically be deployed in form of software programs in newly-increased node and transport
Row is realized.Described newly-increased node is referred to increased after dilatation in distributed system by dilatation node
Node.
As previously mentioned, the synchronous adjustment that the time is carried out to newly-increased node is serviced just with NTP in the prior art, and NTP
The adjustment speed of service is extremely limited, only adjusts several milliseconds every time, often leads to newly-increased node and needs to expend one day even more
The long time just realizes time synchronization truly.The multinomial service for increasing node newly as a result, can be because in longer period of time
The system time of mistake and there is the phenomenon that dysfunction.
In consideration of it, increase the method for synchronizing time of node in storage cluster provided herein newly, increases node newly and add at this
Before entering storage cluster, the rough adjustment an of great dynamics has just first been carried out to the system time of newly-increased node, that is, by with storage
Host node in cluster is communicated and gets the cluster time, and the system of newly-increased node oneself is arranged according to the cluster time
Time.It is easily understood that the described cluster time is the system time of the host node of the storage cluster.
When the system time of newly-increased node roughly can be adjusted to cluster with directly settling at one go by described rough adjustment
Between, rather than slowly adjusted as unit of millisecond as in NTP service, thus highly shortened entire time synchronization process
In required cost total time.Certainly, also in that the degree of regulation adjusted roughly is lower, therefore there can be certain small mistake
Difference, and the part slight error can be adjusted using NTP service.
Therefore, after this, which increases node newly, joined storage cluster, can this increase newly configure and open on node NTP clothes
Business sets the NTP time server serviced to the host node of storage cluster by configuring, even NTP service is with host node
System time is reference, carries out regularly synchronous maintenance to the system time for increasing node newly, ensures the time of the newly-increased node
It is synchronous.
Storage cluster is added in newly-increased node in the method for synchronizing time for increasing node in storage cluster provided herein newly
Before, obtain the cluster time of host node in storage cluster；The system time of newly-increased node is set according to the cluster time；In newly-increased section
After storage cluster is added in point, enable using host node as the NTP service processes of time server.As it can be seen that the application passes through newly-increased
Node be added storage cluster before the system time of newly-increased node is adjusted roughly, i.e., directly by the system of newly-increased node when
Between be changed to the cluster time, greatly reduce the error of newly-increased node system time, thus also shorten subsequent NTP service into
The adjusting duration spent when row time synchronization, and then the processing to time synchronization is carried out by dilatation node is improved on the whole
Efficiency ensures by the normal operation of dilatation node, improves user experience.
It increases the method for synchronizing time of node in storage cluster provided herein newly, on the basis of the above, makees
For a kind of preferred embodiment, before the system time of newly-increased node is set according to the cluster time, further includes:
Obtain the original system time of newly-increased node；
The difference of computing cluster time and original system time；
Judge whether difference is greater than preset threshold；
If so, executing the step of system time of newly-increased node is arranged according to the cluster time；
If it is not, then executing after storage cluster is added in newly-increased node, enables and serviced by the NTP of time server of host node
The step of process.
Specifically, it is contemplated that be not excluded for part and increase the system time of node newly originally just more accurately without adjusting roughly
The case where, in advance whether the newly-increased node system time can be needed to adjust roughly and judged, effectively to avoid waste from being
System resource and carry out unnecessary rough adjustment.
As a result, after getting the cluster time, cluster time and this that can be will acquire increase the current system of node newly
Time is compared, and calculates the difference of the two, if the difference is greater than preset threshold, can determine that the system time of the newly-increased node
It needs to be adjusted roughly, and if difference can determine that the system time of the newly-increased node without carrying out no more than preset threshold
Rough adjustment.
Wherein, described preset threshold can voluntarily be selected and be set according to practical situations by those skilled in the art
It sets, for instance, it is preferred that preset threshold is specifically as follows 1s.
It should be noted that in the system time and the difference of cluster time for calculating newly-increased node, it specifically can be first by this
Two times are converted into the number of seconds of system of distance origin time, and it is poor then directly to make again.Generally, in linux system, it is
The system origin time is 0 point of January 1 in 1970.
On the basis of the above, it is preferable that be arranged after determining that difference is greater than preset threshold, according to the cluster time
Before the system time of newly-increased node, further includes:
Reacquire the host node updated cluster time.
Specifically, due to for the deterministic process for whether needing to adjust roughly be expend certain time, in order into
One step improves the accuracy of rough adjustment result, can be adjusted roughly determined needs and then secondary reacquisition is primary
The updated cluster time, so that the system time of newly-increased node is arranged according to the updated cluster time.
On the basis of the above, it increases the method for synchronizing time of node in storage cluster provided herein newly, makees
For a kind of preferred embodiment, after the system time of newly-increased node is set according to the cluster time, further includes: according to system time
The hardware timeout of newly-increased node is set.
Specifically, system time is a kind of software time, and hardware timeout depends on the hardware being stored in CMOS hardware
Clock, hardware clock is still run after shutdown, is powered by the battery of mainboard.After activation system, system is read from hardware clock
Temporal information, later independent operating.Therefore, the hardware timeout for increasing node newly in order to prevent is inconsistent with system time and take
Business failure, can be after the system time for setting up newly-increased node, by the system time synchronization to the hardware timeout of newly-increased node.
Above content can be the time synchronization for increasing node in storage cluster provided herein newly referring in particular to Fig. 2, Fig. 2
Flow chart of the method in another specific embodiment, mainly comprises the steps that
S21: before storage cluster is added in newly-increased node, the cluster time of host node in storage cluster is obtained.
S22: the original system time of newly-increased node is obtained.
S23: the difference of computing cluster time and original system time.
S24: judge whether the difference is greater than preset threshold；If so, into S25；If it is not, then entering S28.
S25: the host node updated cluster time is reacquired；Into S26.
S26: the system time of newly-increased node is set according to the cluster time；Into S27.
S27: the hardware timeout of node is increased newly according to system time setting；Into S28.
S28: it after storage cluster is added in newly-increased node, enables using host node as the NTP service processes of time server.
The time synchronism apparatus for increasing node in storage cluster provided herein newly is introduced below.
Referring to Fig. 3, Fig. 3 is the knot for increasing the time synchronism apparatus of node in a kind of storage cluster provided herein newly
Structure block diagram is applied to newly-increased node, comprising:
Module 1 is obtained, is used for before storage cluster is added in newly-increased node, when obtaining the cluster of host node in storage cluster
Between；
Configuration module 2, for the system time of newly-increased node to be arranged according to the cluster time；
Module 3 is enabled, for enabling using host node as the NTP of time server after storage cluster is added in newly-increased node
Service processes.
As it can be seen that the time synchronism apparatus of node is increased in storage cluster provided herein newly, by adding in newly-increased node
The system time of newly-increased node is adjusted roughly before entering storage cluster, i.e., is directly changed the system time of newly-increased node
For the cluster time, the error of newly-increased node system time is greatly reduced, so that also shortening subsequent NTP service carries out the time
The adjusting duration spent when synchronous, and then improved on the whole to the treatment effeciency for being carried out time synchronization by dilatation node,
It ensures by the normal operation of dilatation node, improves user experience.
On the basis of above content, as a kind of preferred embodiment, node is increased in storage cluster provided herein newly
Time synchronism apparatus, further include judgment module, for obtaining the original system time of newly-increased node, the computing cluster time and former be
The difference of system time, and judge whether difference is greater than preset threshold；So that configuration module is when difference is greater than threshold value, according to cluster
The system time of newly-increased node is arranged in time.
Wherein it is preferred to which the preset threshold is 1s.
On the basis of the above, it is preferable that obtain module 1 and be also used to determine that the difference is greater than institute in judgment module
The host node updated cluster time is reacquired when stating threshold value.
On the basis of above content, as a kind of preferred embodiment, node is increased in storage cluster provided herein newly
Time synchronism apparatus, configuration module 2 is also used to: after the system time of newly-increased node is set according to the cluster time, according to
System time setting increases the hardware timeout of node newly.
Further, disclosed herein as well is the time synchronism equipment for increasing node in a kind of storage cluster newly, it is applied to institute
State newly-increased node, comprising:
Memory, for storing computer program；
Processor is realized in any storage cluster as described above for executing the computer program and increases node newly
Method for synchronizing time the step of.
Further, disclosed herein as well is a kind of computer readable storage medium, the computer readable storage mediums
In be stored with computer program, to realize that any storage as described above collects when the computer program is executed by processor
The step of increasing the method for synchronizing time of node in group newly.
Increase time synchronism apparatus, equipment and the computer-readable storage medium of node in storage cluster provided herein newly
The specific embodiment of matter can correspond to each other reference with the method for synchronizing time for increasing node in storage cluster as described above newly,
Here it just repeats no more.
Each embodiment is described in a progressive manner in the application, the highlights of each of the examples are with other realities
The difference of example is applied, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
Speech, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is referring to method part illustration
?.
It should be noted that in present specification, the relational terms of such as " first " and " second " etc are used merely to
One entity or operation and another entity or operate is distinguished, without necessarily requiring or implying these entities or
There are any actual relationship or orders between person's operation.In addition, the terms "include", "comprise" or its any other
Variant is intended to non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only
It including those elements, but also including other elements that are not explicitly listed, or further include for this process, method, object
Product or the intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...",
It is not precluded in the process, method, article or apparatus that includes the element that there is also other identical elements.
Technical solution provided herein is described in detail above.Specific case used herein is to this Shen
Principle and embodiment please is expounded, the present processes that the above embodiments are only used to help understand and its
Core concept.It should be pointed out that for those skilled in the art, in the premise for not departing from the application principle
Under, can also to the application, some improvement and modification can also be carried out, these improvement and modification are also fallen into the protection scope of the application.
Claims (10)
1. increasing the method for synchronizing time of node in a kind of storage cluster newly, which is characterized in that be applied to the newly-increased node, packet
It includes:
Before the storage cluster is added in the newly-increased node, the cluster time of host node in the storage cluster is obtained；
The system time of the newly-increased node is set according to the cluster time；
After the storage cluster is added in the newly-increased node, enable using the host node as the NTP of time server service into
Journey.
2. method for synchronizing time according to claim 1, which is characterized in that institute is arranged according to the cluster time described
Before the system time for stating newly-increased node, further includes:
Obtain the original system time of the newly-increased node；
Calculate the difference of the cluster time Yu the original system time；
Judge whether the difference is greater than preset threshold；
If so, the step of executing the system time that the newly-increased node is arranged according to the cluster time；
If it is not, enabling and being taken by the time of the host node after the storage cluster is added in the newly-increased node described in then executing
The step of NTP service processes of business device.
3. method for synchronizing time according to claim 2, which is characterized in that determining the difference greater than the default threshold
After value, before the system time that the newly-increased node is set according to the cluster time, further includes:
Reacquire the host node updated cluster time.
4. method for synchronizing time according to claim 3, which is characterized in that the preset threshold is 1s.
5. method for synchronizing time according to any one of claims 1 to 4, which is characterized in that described according to the cluster
Time is arranged after the system time of the newly-increased node, further includes:
Increase the hardware timeout of node newly according to the system time setting.
6. increasing the time synchronism apparatus of node in a kind of storage cluster newly, which is characterized in that be applied to the newly-increased node, packet
It includes:
Module is obtained, for obtaining host node in the storage cluster before the storage cluster is added in the newly-increased node
The cluster time；
Configuration module, for the system time of the newly-increased node to be arranged according to the cluster time；
Module is enabled, for enabling using the host node as Time Service after the storage cluster is added in the newly-increased node
The NTP service processes of device.
7. time synchronism apparatus according to claim 6, which is characterized in that further include:
Judgment module, for obtaining the original system time of the newly-increased node, when calculating the cluster time and the original system
Between difference, and judge whether the difference is greater than preset threshold；So that the configuration module is greater than the threshold in the difference
When value, the system time of the newly-increased node is set according to the cluster time.
8. time synchronism apparatus according to claim 7, which is characterized in that the configuration module is also used to:
It is described the system time of the newly-increased node is arranged according to the cluster time after, according to the system time setting
The hardware timeout of the newly-increased node.
9. increasing the time synchronism equipment of node in a kind of storage cluster newly, which is characterized in that be applied to the newly-increased node, packet
It includes:
Memory, for storing computer program；
Processor, for executing the computer program to realize as new in storage cluster described in any one of claim 1 to 5
The step of increasing the method for synchronizing time of node.
10. a kind of computer readable storage medium, which is characterized in that be stored with computer in the computer readable storage medium
Program, to realize as in storage cluster described in any one of claim 1 to 5 when the computer program is executed by processor
The step of method for synchronizing time of newly-increased node.
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| CN114629582A (en) * | 2020-12-10 | 2022-06-14 | 深圳绿米联创科技有限公司 | Method, device and equipment for automatically calibrating local time of intelligent equipment and storage medium |
| CN114640417A (en) * | 2022-03-31 | 2022-06-17 | 苏州浪潮智能科技有限公司 | Clock synchronization method, device, equipment and storage medium |
| CN114640417B (en) * | 2022-03-31 | 2024-06-28 | 苏州浪潮智能科技有限公司 | Clock synchronization method, device, equipment and storage medium |
| WO2024073210A1 (en) * | 2022-09-29 | 2024-04-04 | Caterpillar Inc. | Node-to-node network time synchronization |
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