Efficient interruption or termination of archive operations
Various systems, methods, and processes for interrupting and/or terminating an archive operation and/or archive process are disclosed. A determination is made as to whether an archive operation is ongoing. Files being written to a storage device as part of the archive operation are monitored. Upon receiving a request to interrupt or terminate the archive operation, the initiation of writing of new files to the storage device is inhibited, and the completion of the writing the files being written to the storage device is permitted. The archive operation and/or archive process is then interrupted or terminated without the risk of data corruption.
1. A method comprising:
determining whether an archive operation is ongoing;
in response to the archive operation being ongoing,
monitoring a plurality of files being written to a storage device as part of the archive operation, wherein the monitoring comprises
intercepting a plurality of file system calls associated with the plurality of files, and
overriding at least one file system call of the plurality of file system calls;
receiving a request to interrupt or terminate the archive operation; and
upon receiving the request,
inhibiting initiation of writing of one or more new files to the storage device,
permitting writing of one or more files being written to the storage device to complete, wherein
the inhibiting and the permitting are performed by virtue of the intercepting and the overriding, and
interrupting or terminating the archive operation.
2. The method of claim 1 , wherein
the plurality of files being written to the storage device are being monitored as part of creating and closing files for the archive operation.
3. The method of claim 1 , wherein
the monitoring further comprises
recording a file handle associated with each of the plurality of files in a handle list.
4. The method of claim 3 , further comprising:
determining whether the handle list comprises any recorded file handles, upon accessing the handle list; and
performing the interrupting or the terminating of the archive operation, if there are no recorded file handles in the handle list.
5. The method of claim 3 , wherein
the plurality of file system calls are initiated by an operating system in response to a command,
the command is created using an application programming interface (API), and
when executed, the command starts the archive operation.
6. The method of claim 5 , wherein
the plurality of file system calls comprise one or more file operations associated with the operating system.
7. The method of claim 3 , wherein
the intercepting the plurality of file system calls comprises
accessing an import address table, wherein
the import address table lists one or more Dynamic Link Libraries (DLLs).
8. The method of claim 7 , further comprising:
altering the import address table by replacing addresses of one or more of the plurality of file system calls with an address of a shutdown handler; and
overriding one or more of the plurality of file system calls by utilizing the import address table to access the shutdown handler, wherein
the shutdown handler is configured to interact with a lower layer DLL of the one or more DLLs, and
the plurality of file system calls are initiated by the archiving operation.
9. The method of claim 1 , wherein
the request to interrupt or terminate the archive operation is received at a server, and
the server is communicatively coupled to an archive.
10. A system comprising:
one or more processors; and
a memory coupled to the one or more processors, wherein the memory stores program instructions executable by the one or more processors to:
determine whether an archive operation is ongoing;
in response to the archive operation being ongoing,
monitor a plurality of files being written to a storage device as part of the archive operation, wherein the monitoring comprises
intercepting a plurality of file system calls associated with the plurality of files, and
overriding at least one file system call of the plurality of file system calls;
receive a request to interrupt or terminate the archive operation; and
upon receiving the request,
inhibit initiation of writing of one or more new files to the storage device,
permit writing of one or more files being written to the storage device to complete, wherein
the inhibiting and the permitting are performed by virtue of the intercepting and the overriding, and
interrupt or terminate the archive operation.
11. The system of claim 10 , wherein
the plurality of files being written to the storage device are being monitored as part of creating and closing files for the archive operation, and
the monitoring further comprises
recording a file handle associated with each of the plurality of files in a handle list.
12. The system of claim 11 , further comprising:
determining whether the handle list comprises any recorded file handles, upon accessing the handle list; and
performing the interrupting or the terminating of the archive operation, if there are no recorded file handles in the handle list.
13. The system of claim 11 , wherein
the plurality of file system calls are initiated by an operating system in response to a command,
the command is created using an application programming interface (API), and
when executed, the command starts the archive operation.
14. The system of claim 13 , wherein
the intercepting the plurality of file system calls comprises
accessing an import address table, wherein
the import address table lists one or more Dynamic Link Libraries (DLLs), and
the plurality of file system calls comprise one or more file operations associated with the operating system.
15. The system of claim 14 , further comprising:
altering the import address table by replacing addresses of one or more of the plurality of file system calls with an address of a shutdown handler; and
overriding one or more of the plurality of file system calls by utilizing the import address table to access the shutdown handler, wherein
the shutdown handler is configured to interact with a lower layer DLL of the one or more DLLs, and
the plurality of file system calls are initiated by the archiving operation.
16. A non-transitory computer readable storage medium comprising program instructions executable to:
determine whether an archive operation is ongoing;
in response to the archive operation being ongoing,
monitor a plurality of files being written to a storage device as part of the archive operation, wherein the monitoring comprises
intercepting a plurality of file system calls associated with the plurality of files, and
overriding at least one file system call of the plurality of file system calls;
receive a request to interrupt or terminate the archive operation; and
upon receiving the request,
inhibit initiation of writing of one or more new files to the storage device,
permit writing of one or more files being written to the storage device to complete, wherein
the inhibiting and the permitting are performed by virtue of the intercepting and the overriding, and
interrupt or terminate the archive operation.
17. The non-transitory computer readable storage medium of claim 16 , wherein
the plurality of files being written to the storage device are being monitored as part of creating and closing files for the archive operation, and
the monitoring further comprises:
intercepting the plurality of file system calls associated with the plurality of files, wherein
the plurality of file system calls are initiated by an operating system in response to a command,
the plurality of file system calls comprise one or more file operations associated with the operating system,
the command is created using an application programming interface (API), and
when executed, the command starts the archive operation; and
recording a file handle associated with each of the plurality of files in a handle list.
18. The non-transitory computer readable storage medium of claim 17 , further comprising:
determining whether the handle list comprises any recorded file handles, upon accessing the handle list; and
performing the interrupting or the terminating of the archive operation, if there are no recorded file handles in the handle list.
19. The non-transitory computer readable storage medium of claim 17 , wherein the intercepting the plurality of file system calls comprises
accessing an import address table, wherein
the import address table lists one or more Dynamic Link Libraries (DLLs).
20. The non-transitory computer readable storage medium of claim 19 , further comprising:
altering the import address table by replacing addresses of one or more of the plurality of file system calls with an address of a shutdown handler; and
overriding one or more of the plurality of file system calls by utilizing the import address table to access the shutdown handler, wherein
the shutdown handler is configured to interact with a lower layer DLL of the one or more DLLs, and
the plurality of file system calls are initiated by the archiving operation.