[NFS-Ganesha-Support] Re: [ceph-users] [Nfs-ganesha-devel] 2.7.3 with CEPH_FSAL Crashing

Thanks for taking a look at this, Daniel. Below is the only interesting bit from the Ceph MDS log at the time of the crash but I suspect the slow requests are a result of the Ganesha crash rather than the cause of it. Copying the Ceph list in case anyone has any ideas. 2019-07-15 15:06:54.624007 7f5fda5bb700 0 log_channel(cluster) log [WRN] : 6 slow requests, 5 included below; oldest blocked for > 34.588509 secs 2019-07-15 15:06:54.624017 7f5fda5bb700 0 log_channel(cluster) log [WRN] : slow request 33.113514 seconds old, received at 2019-07-15 15:06:21.510423: client_request(client.16140784:5571174 setattr mtime=2019-07-15 14:59:45.642408 #0x10009079cfb 2019-07 -15 14:59:45.642408 caller_uid=1161, caller_gid=1131{}) currently failed to xlock, waiting 2019-07-15 15:06:54.624020 7f5fda5bb700 0 log_channel(cluster) log [WRN] : slow request 34.588509 seconds old, received at 2019-07-15 15:06:20.035428: client_request(client.16129440:1067288 create #0x1000907442e/filePathEditorRegistryPrefs.melDXAtss 201 9-07-15 14:59:53.694087 caller_uid=1161, caller_gid=1131{1131,4121,2330,2683,4115,2322,2779,2979,1503,3511,2783,2707,2942,2980,2258,2829,1238,1237,2793,1235,1249,2097,1154,2982,2983,3860,4101,1208,3638,3641,3644,3640,3643,3639,3642,3822,3945,4045,3521,35 22,3520,3523,}) currently failed to wrlock, waiting 2019-07-15 15:06:54.624025 7f5fda5bb700 0 log_channel(cluster) log [WRN] : slow request 34.583918 seconds old, received at 2019-07-15 15:06:20.040019: client_request(client.16140784:5570551 getattr pAsLsXsFs #0x1000907443b 2019-07-15 14:59:44.171408 cal ler_uid=1161, caller_gid=1131{}) currently failed to rdlock, waiting 2019-07-15 15:06:54.624028 7f5fda5bb700 0 log_channel(cluster) log [WRN] : slow request 34.580632 seconds old, received at 2019-07-15 15:06:20.043305: client_request(client.16129440:1067293 unlink #0x1000907442e/filePathEditorRegistryPrefs.melcdzxxc 201 9-07-15 14:59:53.701964 caller_uid=1161, caller_gid=1131{1131,4121,2330,2683,4115,2322,2779,2979,1503,3511,2783,2707,2942,2980,2258,2829,1238,1237,2793,1235,1249,2097,1154,2982,2983,3860,4101,1208,3638,3641,3644,3640,3643,3639,3642,3822,3945,4045,3521,35 22,3520,3523,}) currently failed to wrlock, waiting 2019-07-15 15:06:54.624032 7f5fda5bb700 0 log_channel(cluster) log [WRN] : slow request 34.538332 seconds old, received at 2019-07-15 15:06:20.085605: client_request(client.16129440:1067308 create #0x1000907442e/filePathEditorRegistryPrefs.melHHljMk 201 9-07-15 14:59:53.744266 caller_uid=1161, caller_gid=1131{1131,4121,2330,2683,4115,2322,2779,2979,1503,3511,2783,2707,2942,2980,2258,2829,1238,1237,2793,1235,1249,2097,1154,2982,2983,3860,4101,1208,3638,3641,3644,3640,3643,3639,3642,3822,3945,4045,3521,3522,3520,3523,}) currently failed to wrlock, waiting 2019-07-15 15:06:55.014073 7f5fdcdc0700 1 mds.mds01 Updating MDS map to version 68166 from mon.2 2019-07-15 15:06:59.624041 7f5fda5bb700 0 log_channel(cluster) log [WRN] : 7 slow requests, 2 included below; oldest blocked for > 39.588571 secs 2019-07-15 15:06:59.624048 7f5fda5bb700 0 log_channel(cluster) log [WRN] : slow request 30.495843 seconds old, received at 2019-07-15 15:06:29.128156: client_request(client.16129440:1072227 create #0x1000907442e/filePathEditorRegistryPrefs.mel58AQSv 2019-07-15 15:00:02.786754 caller_uid=1161, caller_gid=1131{1131,4121,2330,2683,4115,2322,2779,2979,1503,3511,2783,2707,2942,2980,2258,2829,1238,1237,2793,1235,1249,2097,1154,2982,2983,3860,4101,1208,3638,3641,3644,3640,3643,3639,3642,3822,3945,4045,3521,3522,3520,3523,}) currently failed to wrlock, waiting 2019-07-15 15:06:59.624053 7f5fda5bb700 0 log_channel(cluster) log [WRN] : slow request 39.432848 seconds old, received at 2019-07-15 15:06:20.191151: client_request(client.16140784:5570649 mknod #0x1000907442e/filePathEditorRegistryPrefs.mel3HZLNE 2019-07-15 14:59:44.322408 caller_uid=1161, caller_gid=1131{}) currently failed to wrlock, waiting 2019-07-15 15:07:03.014108 7f5fdcdc0700 1 mds.mds01 Updating MDS map to version 68167 from mon.2 2019-07-15 15:07:04.624096 7f5fda5bb700 0 log_channel(cluster) log [WRN] : 8 slow requests, 1 included below; oldest blocked for > 44.588632 secs 2019-07-15 15:07:04.624103 7f5fda5bb700 0 log_channel(cluster) log [WRN] : slow request 34.904077 seconds old, received at 2019-07-15 15:06:29.719983: client_request(client.16129440:1072228 getattr pAsLsXsFs #0x1000907443b 2019-07-15 15:00:03.378512 caller_uid=1161, caller_gid=1131{1131,4121,2330,2683,4115,2322,2779,2979,1503,3511,2783,2707,2942,2980,2258,2829,1238,1237,2793,1235,1249,2097,1154,2982,2983,3860,4101,1208,3638,3641,3644,3640,3643,3639,3642,3822,3945,4045,3521,3522,3520,3523,}) currently failed to rdlock, waiting 2019-07-15 15:07:07.013972 7f5fdcdc0700 1 mds.mds01 Updating MDS map to version 68168 from mon.2 2019-07-15 15:07:09.624166 7f5fda5bb700 0 log_channel(cluster) log [WRN] : 10 slow requests, 2 included below; oldest blocked for > 49.588693 secs 2019-07-15 15:07:09.624173 7f5fda5bb700 0 log_channel(cluster) log [WRN] : slow request 32.689838 seconds old, received at 2019-07-15 15:06:36.934283: client_request(client.16129440:1072271 getattr pAsLsXsFs #0x1000907443b 2019-07-15 15:00:10.592734 caller_uid=1161, caller_gid=1131{1131,4121,2330,2683,4115,2322,2779,2979,1503,3511,2783,2707,2942,2980,2258,2829,1238,1237,2793,1235,1249,2097,1154,2982,2983,3860,4101,1208,3638,3641,3644,3640,3643,3639,3642,3822,3945,4045,3521,3522,3520,3523,}) currently failed to rdlock, waiting 2019-07-15 15:07:09.624177 7f5fda5bb700 0 log_channel(cluster) log [WRN] : slow request 34.962719 seconds old, received at 2019-07-15 15:06:34.661402: client_request(client.16129440:1072256 getattr pAsLsXsFs #0x1000907443b 2019-07-15 15:00:08.319912 caller_uid=1161, caller_gid=1131{1131,4121,2330,2683,4115,2322,2779,2979,1503,3511,2783,2707,2942,2980,2258,2829,1238,1237,2793,1235,1249,2097,1154,2982,2983,3860,4101,1208,3638,3641,3644,3640,3643,3639,3642,3822,3945,4045,3521,3522,3520,3523,}) currently failed to rdlock, waiting 2019-07-15 15:07:11.519928 7f5fdcdc0700 1 mds.mds01 Updating MDS map to version 68169 from mon.2 2019-07-15 15:07:19.624272 7f5fda5bb700 0 log_channel(cluster) log [WRN] : 11 slow requests, 1 included below; oldest blocked for > 59.588812 secs 2019-07-15 15:07:19.624278 7f5fda5bb700 0 log_channel(cluster) log [WRN] : slow request 32.164260 seconds old, received at 2019-07-15 15:06:47.459980: client_request(client.16129440:1072326 getattr pAsLsXsFs #0x1000907443b 2019-07-15 15:00:21.118372 caller_uid=1161, caller_gid=1131{1131,4121,2330,2683,4115,2322,2779,2979,1503,3511,2783,2707,2942,2980,2258,2829,1238,1237,2793,1235,1249,2097,1154,2982,2983,3860,4101,1208,3638,3641,3644,3640,3643,3639,3642,3822,3945,4045,3521,3522,3520,3523,}) currently failed to rdlock, waiting On Tue, Jul 16, 2019 at 1:18 PM Daniel Gryniewicz <dang(a)redhat.com&gt; wrote: > This is not one I've seen before, and a quick look at the code looks > strange. The only assert in that bit is asserting the parent is a > directory, but the parent directory is not something that was passed in > by Ganesha, but rather something that was looked up internally in > libcephfs. This is beyond my expertise, at this point. Maybe some ceph > logs would help? > > Daniel > > On 7/15/19 10:54 AM, David C wrote: > > This list has been deprecated. Please subscribe to the new devel list at lists.nfs-ganesha.org. > > > > > > Hi All > > > > I'm running 2.7.3 using the CEPH FSAL to export CephFS (Luminous), it > > ran well for a few days and crashed. I have a coredump, could someone > > assist me in debugging this please? > > > > (gdb) bt > > #0 0x00007f04dcab6207 in raise () from /lib64/libc.so.6 > > #1 0x00007f04dcab78f8 in abort () from /lib64/libc.so.6 > > #2 0x00007f04d2a9d6c5 in ceph::__ceph_assert_fail(char const*, char > > const*, int, char const*) () from /usr/lib64/ceph/libceph-common.so.0 > > #3 0x00007f04d2a9d844 in ceph::__ceph_assert_fail(ceph::assert_data > > const&) () from /usr/lib64/ceph/libceph-common.so.0 > > #4 0x00007f04cc807f04 in Client::_lookup_name(Inode*, Inode*, UserPerm > > const&) () from /lib64/libcephfs.so.2 > > #5 0x00007f04cc81c41f in Client::ll_lookup_inode(inodeno_t, UserPerm > > const&, Inode**) () from /lib64/libcephfs.so.2 > > #6 0x00007f04ccadbf0e in create_handle (export_pub=0x1baff10, > > desc=<optimized out>, pub_handle=0x7f0470fd4718, > > attrs_out=0x7f0470fd4740) at > > /usr/src/debug/nfs-ganesha-2.7.3/FSAL/FSAL_CEPH/export.c:256 > > #7 0x0000000000523895 in mdcache_locate_host (fh_desc=0x7f0470fd4920, > > export=export@entry=0x1bafbf0, entry=entry@entry=0x7f0470fd48b8, > > attrs_out=attrs_out@entry=0x0) > > at > > /usr/src/debug/nfs-ganesha-2.7.3/FSAL/Stackable_FSALs/FSAL_MDCACHE/mdcache_helpers.c:1011 > > #8 0x000000000051d278 in mdcache_create_handle (exp_hdl=0x1bafbf0, > > fh_desc=<optimized out>, handle=0x7f0470fd4900, attrs_out=0x0) at > > /usr/src/debug/nfs-ganesha-2.7.3/FSAL/Stackable_FSALs/FSAL_MDCACHE/mdcache_handle.c:1578 > > #9 0x000000000046d404 in nfs4_mds_putfh > > (data=data@entry=0x7f0470fd4ea0) at > > /usr/src/debug/nfs-ganesha-2.7.3/Protocols/NFS/nfs4_op_putfh.c:211 > > #10 0x000000000046d8e8 in nfs4_op_putfh (op=0x7f03effaf1d0, > > data=0x7f0470fd4ea0, resp=0x7f03ec1de1f0) at > > /usr/src/debug/nfs-ganesha-2.7.3/Protocols/NFS/nfs4_op_putfh.c:281 > > #11 0x000000000045d120 in nfs4_Compound (arg=<optimized out>, > > req=<optimized out>, res=0x7f03ec1de9d0) at > > /usr/src/debug/nfs-ganesha-2.7.3/Protocols/NFS/nfs4_Compound.c:942 > > #12 0x00000000004512cd in nfs_rpc_process_request > > (reqdata=0x7f03ee5ed4b0) at > > /usr/src/debug/nfs-ganesha-2.7.3/MainNFSD/nfs_worker_thread.c:1328 > > #13 0x0000000000450766 in nfs_rpc_decode_request (xprt=0x7f02180c2320, > > xdrs=0x7f03ec568ab0) at > > /usr/src/debug/nfs-ganesha-2.7.3/MainNFSD/nfs_rpc_dispatcher_thread.c:1345 > > #14 0x00007f04df45d07d in svc_rqst_xprt_task (wpe=0x7f02180c2538) at > > /usr/src/debug/nfs-ganesha-2.7.3/libntirpc/src/svc_rqst.c:769 > > #15 0x00007f04df45d59a in svc_rqst_epoll_events (n_events=<optimized > > out>, sr_rec=0x4bb53e0) at > > /usr/src/debug/nfs-ganesha-2.7.3/libntirpc/src/svc_rqst.c:941 > > #16 svc_rqst_epoll_loop (sr_rec=<optimized out>) at > > /usr/src/debug/nfs-ganesha-2.7.3/libntirpc/src/svc_rqst.c:1014 > > #17 svc_rqst_run_task (wpe=0x4bb53e0) at > > /usr/src/debug/nfs-ganesha-2.7.3/libntirpc/src/svc_rqst.c:1050 > > #18 0x00007f04df465123 in work_pool_thread (arg=0x7f044c0008c0) at > > /usr/src/debug/nfs-ganesha-2.7.3/libntirpc/src/work_pool.c:181 > > #19 0x00007f04dda05dd5 in start_thread () from /lib64/libpthread.so.0 > > #20 0x00007f04dcb7dead in clone () from /lib64/libc.so.6 > > > > Package versions: > > > > nfs-ganesha-2.7.3-0.1.el7.x86_64 > > nfs-ganesha-ceph-2.7.3-0.1.el7.x86_64 > > libcephfs2-14.2.1-0.el7.x86_64 > > librados2-14.2.1-0.el7.x86_64 > > > > I notice in my Ceph log I have a bunch of slow requests around the time > > it went down, I'm not sure if it's a symptom of Ganesha segfaulting or > > if it was a contributing factor. > > > > Thanks, > > David > > > > > > _______________________________________________ > > Nfs-ganesha-devel mailing list > > Nfs-ganesha-devel(a)lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/nfs-ganesha-devel > > > _______________________________________________ ceph-users mailing list ceph-users(a)lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com