Data backup method, electronic device and computer program product
Embodiments of the present disclosure provide a data backup method, an electronic device and a computer program product. The method provided includes creating a workflow related to a data source, the workflow being configured to generate a copy of the data source or to replicate the copy of the data source to a remote device. The method further includes identifying a dependency of the workflow, the dependency indicating whether the workflow depends on at least one additional workflow related to the data source. The method further includes scheduling the workflow based at least on the identified dependency. According to the embodiments of the present disclosure, by use of a dependency-based scheduling mechanism, the performance of a storage system can be improved, and consumption of resources such as a storage and an internal memory can be reduced.
1. A data backup method, comprising:
creating a workflow related to a data source, the workflow being configured to generate a copy of the data source or to replicate the copy of the data source to a remote device;
identifying a dependency of the workflow, the dependency indicating whether the workflow depends on at least one additional workflow related to the data source; and
scheduling the workflow based at least on the identified dependency.
2. The method according to claim 1 , wherein scheduling the workflow comprises:
executing the workflow according to determining that the workflow does not depend on the additional workflow related to the data source.
3. The method according to claim 2 , further comprising:
determining a child workflow depending on the workflow in response to termination of the workflow; and
determining that the child workflow no longer depends on the workflow to allow the child workflow to be scheduled.
4. The method according to claim 1 , wherein scheduling the workflow comprises:
identifying the workflow as being allowed to be scheduled in response to termination of a parent workflow on which the workflow depends;
determining an operation result of the parent workflow on the copy according to determining that the workflow is allowed to be scheduled; and
scheduling the workflow further based on the operation result.
5. The method according to claim 4 , wherein scheduling the workflow further based on the operation result comprises:
executing the workflow according to determining that the parent workflow successfully generates the copy, so as to replicate the copy to the remote device; and
canceling the workflow according to determining that the parent workflow fails to generate the copy.
6. The method according to claim 1 , wherein identifying the dependency of the workflow comprises:
acquiring a configuration file for the data source, the configuration file indicating an association between different workflows related to the data source;
determining whether the workflow depends on the at least one additional workflow based on the configuration file; and
associating an identifier of the at least one additional workflow with the workflow according to determining that the workflow depends on the at least one additional workflow.
7. The method according to claim 1 , wherein the data source comprises at least one of the following: a virtual machine, a database, or a file system.
8. An electronic device, comprising:
a processor; and
a memory coupled to the processor, the memory storing an instruction, wherein the instruction, when executed by the processor, causes the device to execute an action, wherein the action comprises:
creating a workflow related to a data source, the workflow being configured to generate a copy of the data source or to replicate the copy of the data source to a remote device;
identifying a dependency of the workflow, the dependency indicating whether the workflow depends on at least one additional workflow related to the data source; and
scheduling the workflow based at least on the identified dependency.
9. The device according to claim 8 , wherein scheduling the workflow comprises:
executing the workflow according to determining that the workflow does not depend on the additional workflow related to the data source.
10. The device according to claim 9 , wherein the action further comprises:
determining a child workflow depending on the workflow in response to termination of the workflow; and
determining that the child workflow no longer depends on the workflow to allow the child workflow to be scheduled.
11. The device according to claim 8 , wherein scheduling the workflow comprises:
identifying the workflow as being allowed to be scheduled in response to termination of a parent workflow on which the workflow depends;
determining an operation result of the parent workflow on the copy according to determining that the workflow is allowed to be scheduled; and
scheduling the workflow further based on the operation result.
12. The device according to claim 11 , wherein scheduling the workflow further based on the operation result comprises:
executing the workflow according to determining that the parent workflow successfully generates the copy, so as to replicate the copy to the remote device; and
canceling the workflow according to determining that the parent workflow fails to generate the copy.
13. The device according to claim 8 , wherein identifying the dependency of the workflow comprises:
acquiring a configuration file for the data source, the configuration file indicating an association between different workflows related to the data source;
determining whether the workflow depends on the at least one additional workflow based on the configuration file; and
associating an identifier of the at least one additional workflow with the workflow according to determining that the workflow depends on the at least one additional workflow.
14. The device according to claim 8 , wherein the data source comprises at least one of the following: a virtual machine, a database, or a file system.
15. A non-transitory computer-readable medium on which a computer program comprising a machine-executable instruction is tangibly stored thereon, which when executed by a processor, causes the processor to perform an action, the action comprising:
creating a workflow related to a data source, the workflow being configured to generate a copy of the data source or to replicate the copy of the data source to a remote device;
identifying a dependency of the workflow, the dependency indicating whether the workflow depends on at least one additional workflow related to the data source; and
scheduling the workflow based at least on the identified dependency.
16. The non-transitory computer-readable medium according to claim 15 , wherein scheduling the workflow comprises:
executing the workflow according to determining that the workflow does not depend on the additional workflow related to the data source.
17. The non-transitory computer-readable medium according to claim 16 , wherein the action further comprises:
determining a child workflow depending on the workflow in response to termination of the workflow; and
determining that the child workflow no longer depends on the workflow to allow the child workflow to be scheduled.
18. The non-transitory computer-readable medium according to claim 15 , wherein scheduling the workflow comprises:
identifying the workflow as being allowed to be scheduled in response to termination of a parent workflow on which the workflow depends;
determining an operation result of the parent workflow on the copy according to determining that the workflow is allowed to be scheduled; and
scheduling the workflow further based on the operation result.
19. The non-transitory computer-readable medium according to claim 18 , wherein scheduling the workflow further based on the operation result comprises:
executing the workflow according to determining that the parent workflow successfully generates the copy, so as to replicate the copy to the remote device; and
canceling the workflow according to determining that the parent workflow fails to generate the copy.
20. The non-transitory computer-readable medium according to claim 15 , wherein identifying the dependency of the workflow comprises:
acquiring a configuration file for the data source, the configuration file indicating an association between different workflows related to the data source;
determining whether the workflow depends on the at least one additional workflow based on the configuration file; and
associating an identifier of the at least one additional workflow with the workflow according to determining that the workflow depends on the at least one additional workflow.