[Lustre-discuss] lustre errors

[Dan]

Hi,

We got through the errors we had earlier this week with hard locking when mounting specific OSTs.  The same OST (ost7) that was causing locks now mounts but cannot be communicated with it turns out.

I'm getting hundreds of the following errors in my logs:


Oct3 13:32:52 iroc kernel: Lustre
Error:5400:0:(filter.c261:filter_client_add()) no room for 32768 clients
- fix LR_MAX_CLIENTS
Oct3 13:36:17 iroc kernel:
LustreErro:5364:0:(fsfilt-ldiskfs.c:282:fsfilt_ldiskfs_start()) error starting handle for op 4 (51 credits):rc -30
Oct3 13:36:19 iroc
kernel:LustreErro:8756:0:(fsfilt-ldiskfs.c:282:fsfilt_ldiskfs_start()) error starting handle for op 4 (51 credits):rc -30
Oct3 13:36:17 iroc
kernel:LustreErro:5363:0:(fsfilt-ldiskfs.c:282:fsfilt_ldiskfs_start()) error starting handle for op 4 (51 credits):rc -30
Oct3 13:37:57 iroc kernel: LustreError:
5582:0:(ldlm_lib.c:1536:target_send_reply_msg()) @@@ processing error
(-75) req at 000010120c70e00x4470/t0 o8-><?>:0/0 lens 240/144 e 0 to 0 dl
1223066377 ref 1 fl Interpret:/0/0 rc -75/0

What do these errors indicate?

Clients are reporting timeouts trying to reach ost7 and failing.  This locks the file system for minutes at a time.

Thanks,

Dan