[lustre-discuss] ldlm_enqueue and ldlm_cli_enqueue errors

K. Scott Rowe krowe at nrao.edu
Tue Sep 27 13:26:17 PDT 2016


We migrated from an MGS/MDS and OSSes running lustre-1.8.5 to a
completely new MGS/MDS and OSSes running lustre-2.4.3 on Sep. 24,
2016. We use a mix of lustre-1.8.9 and lustre-2.4.3 clients, both of
which mount lustre with the following options
"defaults,noauto,user_xattr,flock".  Since the migration, we have seen
various ldlm_enqueue and ldlm_cli_enqueue errors like the following...

These are from our lustre-2.4.3 clients connected with InfiniBand

  Sep 26 06:37:48 nmpost047 kernel: LustreError: 11-0: aoclst03-MDT0000-mdc-ffff88101f7c7000: Communicating with 192.168.1.30 at o2ib, operation ldlm_enqueue failed with -116.
  Sep 26 06:37:48 nmpost047 kernel: LustreError: 38632:0:(mdc_locks.c:848:mdc_enqueue()) ldlm_cli_enqueue: -116

  Sep 26 08:46:58 nmpost060 kernel: LustreError: 11-0: aoclst03-MDT0000-mdc-ffff8810622d5c00: Communicating with 192.168.1.30 at o2ib, operation ldlm_enqueue failed with -95.
  Sep 26 08:46:58 nmpost060 kernel: LustreError: 124585:0:(mdc_locks.c:848:mdc_enqueue()) ldlm_cli_enqueue: -95

  Sep 26 09:42:01 nmpost036 kernel: LustreError: 21189:0:(mdc_locks.c:848:mdc_enqueue()) ldlm_cli_enqueue: -2

  Sep 26 20:37:08 nmpost017 kernel: LustreError: 11-0: aoclst03-MDT0000-mdc-ffff880804845000: Communicating with 192.168.1.30 at o2ib, operation ldlm_enqueue failed with -11.


These are from our lustre-1.8.9 clients connected with 1Gb and LNET
routers

  Sep 26 12:57:45 tofino kernel: LustreError: 11-0: an error occurred while communicating with 192.168.1.30 at o2ib. The ldlm_enqueue operation failed with -11


I saw a reference to some of these message is
https://jira.hpdd.intel.com/browse/LU-4705 but it was not clear what
the seriousness of the error are.  Can anyone tell me if these are
errors we should worry about or are they more like warnings that
should be ignored?  And if they should be ignored, is there a way to
disable them?



More information about the lustre-discuss mailing list