A hotfix is available for NetBackup 8.1 which resolves the following issues seen after an upgrade:

• The cache eviction takes a long time. The delete request prevents the upload request.
• Performance improvement for uploads to cloud
• Certain error conditions could cause failed uploads to be reported as successful resulting in potential data loss.
• A hang could occur after several hours or days as a result of a previous non-graceful service shutdown.
• A fix to the Azure plugin is included - vxesp crashes leading to hung CC jobs.
• The rocksdb library has been upgraded to the latest available version to prevent vxesfsd crashes.
• The cache eviction logic fails on some CloudCatalyst servers installed on xfs or other filesystems.This results in a cache full scenario and jobs failing with write errors.
• vxesfsd is crashing in rocksdb. Set FSDB block cache size or disable it.
• vxesfsd crashes in del_file when deleting a file which had nlink set to 0 in FSDB.
• vxesfsd is crashing in esfs_opendir() due to a null-pointer exception.
• vxesfsd is crashing in boost libraries. Remove boost from vxesfsd.
• Added more detailed logging for cache eviction.
• Do not run cache eviction every 10 seconds if very little space is freed.
• Do not use status 1 in image stat file because it is treated as success by MSDP.
• Avoid crash from incorrect path in upload file list.
• Do not use world-writable permissions on created directories.
• Make sure that correct status is returned on failure for rmdir.
• Do not write __EMPTYFILE__ into .bin/.bhd files
• Download size is not the same value as fsdb. Disable download size check in case the
• size in fsdb is incorrect.
• Cannot remove certain directories. Change rmdir logic of checking directory is empty.
• This change makes sure that directory with garbage data is able to be deleted.
• vxesfsd crashing. Set max open file to limit RocksDB memory allocation. The allocated
• RSS memory will never be larger than 1GB.

• Implement write pause instead of fail when the cache hits the high watermark (the cache is full). Container write will be paused during cache eviction time.
• Round robin between upload and delete requests to avoid starving delete requests in very busy environments.
• Improve performance of opendir/readdir (remove support for optional d_type on readdir since MSDP does not use it)
• Cache eviction improvements
• Skip bhd files and recently modified files during cache eviction
• If unable to reclaim enough space, consider them for eviction the next time
• Check disk usage no more than once every 10 seconds
• Cache sys_ino for /data and /databases for performance
• Remove unnecessary lock for esfs_opendir for MSDP performance
• Improve parse_upload_filelist performance
• Cache sys_ino values while parsing the filelist to reduce stress on fsdb
• Assume root directory is ESFS_ROOT_INO instead of querying fsdb on every esfs_lookup call
• Fix error status for readonly mode for upload msdp system files
• Avoid possible duplicate ino in case of fsdb error
• Propagate error properly on failed cloud delete request
• Prevent inode reuse and change list result for Azure.
• Call putattr on error path.
• Fix crash on failed start during rapid start/stop/start sequence.

• Allow esfs running for non fatal error in fsdb. Avoid crash once vxesfs cannot continue at startup.

• For delete requests change the ino to ext_rscn if it's not null (case of duplicate ino) for DR from cloud.
• Storage manager uses ext_rscn as real inode for download because it might be reused. The utility of DR from cloud stores inode in cloud into ext_rscn.
• Comprehensive fsdb check at start. The allocated inode checking time is the same as metadata checking time.
• Updated pre and post install scripts for the EEB.
• Fix vxesfsd crashes by removing boost library.

Added to Version 16:

Remove libnbsqlite.so dependency from fsdb_check

Versions Affected

• NetBackup 8.1
• NetBackup Appliance 3.1