Hello Folks, Recently we''ve had a fair number of messages akin to the following coming from out OSS syslog: n0004: LustreError: 168-f: lrc-OST0002: BAD WRITE CHECKSUM: changed in transit before arrival at OST from 12345-10.4.8.194 at o2ib inum 1409775/2324736913 object 1771080/0 extent [401408-2809855] n0004: LustreError: Skipped 13 previous similar messages n0004: LustreError: 10839:0:(ost_handler.c:1169:ost_brw_write()) client csum ae09a542, original server csum cfb6ab4b, server csum now cfb6ab4b There appear to be no specific clients, OSSs or OSTs in common. We''ll commonly get a block of messages concerning one OST w/ different clients involved and then move on to another OST. As such, I''m doubting this is a memory issue. Previous mails on this list mention MMAP, but there doesn''t seem to be any mention in these messages. Ideas? ---------------- John White High Performance Computing Services (HPCS) (510) 486-7307 One Cyclotron Rd, MS: 50B-3209C Lawrence Berkeley National Lab Berkeley, CA 94720
https://bugzilla.lustre.org/show_bug.cgi?id=11742 Kevin John White wrote:> Hello Folks, > Recently we''ve had a fair number of messages akin to the following coming from out OSS syslog: > n0004: LustreError: 168-f: lrc-OST0002: BAD WRITE CHECKSUM: changed in transit before arrival at OST from 12345-10.4.8.194 at o2ib inum 1409775/2324736913 object 1771080/0 extent [401408-2809855] > n0004: LustreError: Skipped 13 previous similar messages > n0004: LustreError: 10839:0:(ost_handler.c:1169:ost_brw_write()) client csum ae09a542, original server csum cfb6ab4b, server csum now cfb6ab4b > > There appear to be no specific clients, OSSs or OSTs in common. We''ll commonly get a block of messages concerning one OST w/ different clients involved and then move on to another OST. As such, I''m doubting this is a memory issue. Previous mails on this list mention MMAP, but there doesn''t seem to be any mention in these messages. Ideas? > > ---------------- > John White > High Performance Computing Services (HPCS) > (510) 486-7307 > One Cyclotron Rd, MS: 50B-3209C > Lawrence Berkeley National Lab > Berkeley, CA 94720 > > _______________________________________________ > Lustre-discuss mailing list > Lustre-discuss at lists.lustre.org > http://lists.lustre.org/mailman/listinfo/lustre-discuss >