Roy Perkins created SOLR-15371:
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Summary: Backups randomly fail sometimes
Key: SOLR-15371
URL: https://issues.apache.org/jira/browse/SOLR-15371
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Components: Backup/Restore
Affects Versions: 8.5.2
Reporter: Roy Perkins
Hi, we have an issue where sometimes one shard fails to backup due to what
might be a race condition in creating the folder/starting the backup. When
this happens, we have to restart the first server in a shard to get the backup
to succeed again. The cluster backs up to a shared NFS mount. 4/5 times the
backup goes fine without issues (there is even another collection that the
backup will run for later in the morning that will succeed fine even though
it's all the same servers) Below is the error I get.
{code:java}
"Response":"Failed to backup core=slprod_shard4_replica_n6 because
org.apache.solr.common.SolrException: Directory to contain snapshots doesn't
exist: file:///mnt/solr_backups/slprod/slprod-04-25-2021. Note that
Backup/Restore of a SolrCloud collection requires a shared file system mounted
at the same path on all nodes!"},
{code}
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