/var/log/vmware/vcf/operationsmanager/operationsmanager.logs
we have found below entries related to backup failures that indicating issue with SOS client service and Too many files open in backup task.
2023-09-25T11:22:34.655+0000 ERROR
[vcf_om,99cc8bcd8fbb453b,d881]
[c.v.v.b.helper.SosBackupApiClient,http-nio-127.0.0.1-7300-exec-5] An exception
500 INTERNAL SERVER ERROR: "{"arguments":[],"causes":[{"message":"[Errno 24] Too
many open files:
'/var/log/vmware/vcf/sddc-support/vcf-sos.log'","type":null}],"context":null,"errorCode":"BACKUP_OPERATION_FAILED","message":"Unexpected
error encountered when processing SDDC Manager
Backup","referenceToken":"","remediationMessage":null}" occurred while making a call to SOS 2023-09-25T11:22:34.655+0000 ERROR
[vcf_om,99cc8bcd8fbb453b,d881]
[c.v.v.b.helper.SosBackupApiClient,http-nio-127.0.0.1-7300-exec-5] Response
body as string {"arguments":[],"causes":[{"message":"[Errno 24] Too many open
files:
'/var/log/vmware/vcf/sddc-support/vcf-sos.log'","type":null}],"context":null,"errorCode":"BACKUP_OPERATION_FAILED","message":"Unexpected
error encountered when processing SDDC Manager
Backup","referenceToken":"","remediationMessage":null}
2023-09-25T11:22:34.655+0000 ERROR [vcf_om,99cc8bcd8fbb453b,d881]
[c.v.v.b.helper.SosBackupApiClient,http-nio-127.0.0.1-7300-exec-5] Sos client
error message Unexpected error encountered when processing SDDC Manager Backup
2023-09-25T11:22:34.655+0000 DEBUG [vcf_om,99cc8bcd8fbb453b,d881]
[c.v.e.s.e.h.LocalizableRuntimeExceptionHandler,http-nio-127.0.0.1-7300-exec-5]
Processing localizable exception Backup failed : Unexpected error encountered
when processing SDDC Manager Backup 2023-09-25T11:22:34.659+0000 ERROR
[vcf_om,99cc8bcd8fbb453b,d881]
[c.v.e.s.e.h.LocalizableRuntimeExceptionHandler,http-nio-127.0.0.1-7300-exec-5]
[CUJHPT] BACKUP_FAILED Backup failed : Unexpected error encountered when
processing SDDC Manager Backup
>
WORKAROUND:
1. To resolve this issue, we can REBOOT the SDDC manager once.
OR
2. As this error is related to SOS service then we can execute below command to restart the SOS REST service on SDDC manager.
systemctl restart sosrest
....Cheers !!
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