[ovirt-users] Re: Gluster problems, cluster performance issues

Is storage working as it should? Does the gluster mount point respond as it should? Can you write files to it? Does the physical drives say that they are ok? Can you write (you shouldn't bypass gluster mount point but you need to test the drives) to the physical drives? For me this sounds like broken or almost broken hardware or broken underlying filesystems. If one of the drives malfunction and timeout, gluster will be slow and timeout. It runs write in sync so the slowest node will slow down the whole system. /Johan On May 30, 2018 08:29:46 Jim Kusznir <jim(a)palousetech.com&gt; wrote: > hosted-engine --deploy failed (would not come up on my existing gluster > storage). However, I realized no changes were written to my existing > storage. So, I went back to trying to get my old engine running. > > hosted-engine --vm-status is now taking a very long time (5+minutes) to > return, and it returns stail information everywhere. I thought perhaps the > lockspace is corrupt, so tried to clean that and metadata, but both are > failing (--cleam-metadata has hung and I can't even ctrl-c out of it). > > How can I reinitialize all the lockspace/metadata safely? There is no > engine or VMs running currently.... > > --Jim > > On Tue, May 29, 2018 at 9:33 PM, Jim Kusznir <jim(a)palousetech.com&gt; wrote: > >> Well, things went from bad to very, very bad.... >> >> It appears that during one of the 2 minute lockups, the fencing agents >> decided that another node in the cluster was down. As a result, 2 of the 3 >> nodes were simultaneously reset with fencing agent reboot. After the nodes >> came back up, the engine would not start. All running VMs (including VMs >> on the 3rd node that was not rebooted) crashed. >> >> I've now been working for about 3 hours trying to get the engine to come >> up. I don't know why it won't start. hosted-engine --vm-start says its >> starting, but it doesn't start (virsh doesn't show any VMs running). I'm >> currently running --deploy, as I had run out of options for anything else I >> can come up with. I hope this will allow me to re-import all my existing >> VMs and allow me to start them back up after everything comes back up. >> >> I do have an unverified geo-rep backup; I don't know if it is a good >> backup (there were several prior messages to this list, but I didn't get >> replies to my questions. It was running in what I believe to be "strange", >> and the data directories are larger than their source). >> >> I'll see if my --deploy works, and if not, I'll be back with another >> message/help request. >> >> When the dust settles and I'm at least minimally functional again, I >> really want to understand why all these technologies designed to offer >> redundancy conspired to reduce uptime and create failures where there >> weren't any otherwise. I thought with hosted engine, 3 ovirt servers and >> glusterfs with minimum replica 2+arb or replica 3 should have offered >> strong resilience against server failure or disk failure, and should have >> prevented / recovered from data corruption. Instead, all of the above >> happened (once I get my cluster back up, I still have to try and recover my >> webserver VM, which won't boot due to XFS corrupt journal issues created >> during the gluster crashes). I think a lot of these issues were rooted >> from the upgrade from 4.1 to 4.2. >> >> --Jim >> >> On Tue, May 29, 2018 at 6:25 PM, Jim Kusznir <jim(a)palousetech.com&gt; >> wrote: >> >>> I also finally found the following in my system log on one server: >>> >>> [10679.524491] INFO: task glusterclogro:14933 blocked for more than 120 >>> seconds. >>> [10679.525826] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" >>> disables this message. >>> [10679.527144] glusterclogro D ffff97209832bf40 0 14933 1 >>> 0x00000080 >>> [10679.527150] Call Trace: >>> [10679.527161] [<ffffffffb9913f79>] schedule+0x29/0x70 >>> [10679.527218] [<ffffffffc060e388>] _xfs_log_force_lsn+0x2e8/0x340 >>> [xfs] >>> [10679.527225] [<ffffffffb92cf1b0>] ? wake_up_state+0x20/0x20 >>> [10679.527254] [<ffffffffc05eeb97>] xfs_file_fsync+0x107/0x1e0 [xfs] >>> [10679.527260] [<ffffffffb944f0e7>] do_fsync+0x67/0xb0 >>> [10679.527268] [<ffffffffb992076f>] ? system_call_after_swapgs+0xbc/ >>> 0x160 >>> [10679.527271] [<ffffffffb944f3d0>] SyS_fsync+0x10/0x20 >>> [10679.527275] [<ffffffffb992082f>] system_call_fastpath+0x1c/0x21 >>> [10679.527279] [<ffffffffb992077b>] ? system_call_after_swapgs+0xc8/ >>> 0x160 >>> [10679.527283] INFO: task glusterposixfsy:14941 blocked for more than >>> 120 seconds. >>> [10679.528608] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" >>> disables this message. >>> [10679.529956] glusterposixfsy D ffff972495f84f10 0 14941 1 >>> 0x00000080 >>> [10679.529961] Call Trace: >>> [10679.529966] [<ffffffffb9913f79>] schedule+0x29/0x70 >>> [10679.530003] [<ffffffffc060e388>] _xfs_log_force_lsn+0x2e8/0x340 >>> [xfs] >>> [10679.530008] [<ffffffffb92cf1b0>] ? wake_up_state+0x20/0x20 >>> [10679.530038] [<ffffffffc05eeb97>] xfs_file_fsync+0x107/0x1e0 [xfs] >>> [10679.530042] [<ffffffffb944f0e7>] do_fsync+0x67/0xb0 >>> [10679.530046] [<ffffffffb992076f>] ? system_call_after_swapgs+0xbc/ >>> 0x160 >>> [10679.530050] [<ffffffffb944f3f3>] SyS_fdatasync+0x13/0x20 >>> [10679.530054] [<ffffffffb992082f>] system_call_fastpath+0x1c/0x21 >>> [10679.530058] [<ffffffffb992077b>] ? system_call_after_swapgs+0xc8/ >>> 0x160 >>> [10679.530062] INFO: task glusteriotwr13:15486 blocked for more than >>> 120 seconds. >>> [10679.531805] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" >>> disables this message. >>> [10679.533732] glusteriotwr13 D ffff9720a83f0000 0 15486 1 >>> 0x00000080 >>> [10679.533738] Call Trace: >>> [10679.533747] [<ffffffffb9913f79>] schedule+0x29/0x70 >>> [10679.533799] [<ffffffffc060e388>] _xfs_log_force_lsn+0x2e8/0x340 >>> [xfs] >>> [10679.533806] [<ffffffffb92cf1b0>] ? wake_up_state+0x20/0x20 >>> [10679.533846] [<ffffffffc05eeb97>] xfs_file_fsync+0x107/0x1e0 [xfs] >>> [10679.533852] [<ffffffffb944f0e7>] do_fsync+0x67/0xb0 >>> [10679.533858] [<ffffffffb992076f>] ? system_call_after_swapgs+0xbc/ >>> 0x160 >>> [10679.533863] [<ffffffffb944f3f3>] SyS_fdatasync+0x13/0x20 >>> [10679.533868] [<ffffffffb992082f>] system_call_fastpath+0x1c/0x21 >>> [10679.533873] [<ffffffffb992077b>] ? system_call_after_swapgs+0xc8/ >>> 0x160 >>> [10919.512757] INFO: task glusterclogro:14933 blocked for more than 120 >>> seconds. >>> [10919.514714] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" >>> disables this message. >>> [10919.516663] glusterclogro D ffff97209832bf40 0 14933 1 >>> 0x00000080 >>> [10919.516677] Call Trace: >>> [10919.516690] [<ffffffffb9913f79>] schedule+0x29/0x70 >>> [10919.516696] [<ffffffffb99118e9>] schedule_timeout+0x239/0x2c0 >>> [10919.516703] [<ffffffffb951cc04>] ? blk_finish_plug+0x14/0x40 >>> [10919.516768] [<ffffffffc05e9224>] ? _xfs_buf_ioapply+0x334/0x460 >>> [xfs] >>> [10919.516774] [<ffffffffb991432d>] wait_for_completion+0xfd/0x140 >>> [10919.516782] [<ffffffffb92cf1b0>] ? wake_up_state+0x20/0x20 >>> [10919.516821] [<ffffffffc05eb0a3>] ? _xfs_buf_read+0x23/0x40 [xfs] >>> [10919.516859] [<ffffffffc05eafa9>] xfs_buf_submit_wait+0xf9/0x1d0 >>> [xfs] >>> [10919.516902] [<ffffffffc061b279>] ? xfs_trans_read_buf_map+0x199/0x400 >>> [xfs] >>> [10919.516940] [<ffffffffc05eb0a3>] _xfs_buf_read+0x23/0x40 [xfs] >>> [10919.516977] [<ffffffffc05eb1b9>] xfs_buf_read_map+0xf9/0x160 [xfs] >>> [10919.517022] [<ffffffffc061b279>] xfs_trans_read_buf_map+0x199/0x400 >>> [xfs] >>> [10919.517057] [<ffffffffc05c8d04>] xfs_da_read_buf+0xd4/0x100 [xfs] >>> [10919.517091] [<ffffffffc05c8d53>] xfs_da3_node_read+0x23/0xd0 [xfs] >>> [10919.517126] [<ffffffffc05c9fee>] xfs_da3_node_lookup_int+0x6e/0x2f0 >>> [xfs] >>> [10919.517160] [<ffffffffc05d5a1d>] xfs_dir2_node_lookup+0x4d/0x170 >>> [xfs] >>> [10919.517194] [<ffffffffc05ccf5d>] xfs_dir_lookup+0x1bd/0x1e0 [xfs] >>> [10919.517233] [<ffffffffc05fd8d9>] xfs_lookup+0x69/0x140 [xfs] >>> [10919.517271] [<ffffffffc05fa018>] xfs_vn_lookup+0x78/0xc0 [xfs] >>> [10919.517278] [<ffffffffb9425cf3>] lookup_real+0x23/0x60 >>> [10919.517283] [<ffffffffb9426702>] __lookup_hash+0x42/0x60 >>> [10919.517288] [<ffffffffb942d519>] SYSC_renameat2+0x3a9/0x5a0 >>> [10919.517296] [<ffffffffb94d3753>] ? selinux_file_free_security+0x2 >>> 3/0x30 >>> [10919.517304] [<ffffffffb992077b>] ? system_call_after_swapgs+0xc8/ >>> 0x160 >>> [10919.517309] [<ffffffffb992076f>] ? system_call_after_swapgs+0xbc/ >>> 0x160 >>> [10919.517313] [<ffffffffb992077b>] ? system_call_after_swapgs+0xc8/ >>> 0x160 >>> [10919.517318] [<ffffffffb992076f>] ? system_call_after_swapgs+0xbc/ >>> 0x160 >>> [10919.517323] [<ffffffffb942e58e>] SyS_renameat2+0xe/0x10 >>> [10919.517328] [<ffffffffb942e5ce>] SyS_rename+0x1e/0x20 >>> [10919.517333] [<ffffffffb992082f>] system_call_fastpath+0x1c/0x21 >>> [10919.517339] [<ffffffffb992077b>] ? system_call_after_swapgs+0xc8/ >>> 0x160 >>> [11159.496095] INFO: task glusteriotwr9:15482 blocked for more than 120 >>> seconds. >>> [11159.497546] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" >>> disables this message. >>> [11159.498978] glusteriotwr9 D ffff971fa0fa1fa0 0 15482 1 >>> 0x00000080 >>> [11159.498984] Call Trace: >>> [11159.498995] [<ffffffffb9911f00>] ? bit_wait+0x50/0x50 >>> [11159.498999] [<ffffffffb9913f79>] schedule+0x29/0x70 >>> [11159.499003] [<ffffffffb99118e9>] schedule_timeout+0x239/0x2c0 >>> [11159.499056] [<ffffffffc05dd9b7>] ? xfs_iext_bno_to_ext+0xa7/0x1a0 >>> [xfs] >>> [11159.499082] [<ffffffffc05dd43e>] ? xfs_iext_bno_to_irec+0x8e/0xd0 >>> [xfs] >>> [11159.499090] [<ffffffffb92f7a12>] ? ktime_get_ts64+0x52/0xf0 >>> [11159.499093] [<ffffffffb9911f00>] ? bit_wait+0x50/0x50 >>> [11159.499097] [<ffffffffb991348d>] io_schedule_timeout+0xad/0x130 >>> [11159.499101] [<ffffffffb9913528>] io_schedule+0x18/0x20 >>> [11159.499104] [<ffffffffb9911f11>] bit_wait_io+0x11/0x50 >>> [11159.499107] [<ffffffffb9911ac1>] __wait_on_bit_lock+0x61/0xc0 >>> [11159.499113] [<ffffffffb9393634>] __lock_page+0x74/0x90 >>> [11159.499118] [<ffffffffb92bc210>] ? wake_bit_function+0x40/0x40 >>> [11159.499121] [<ffffffffb9394154>] __find_lock_page+0x54/0x70 >>> [11159.499125] [<ffffffffb9394e85>] grab_cache_page_write_begin+0x >>> 55/0xc0 >>> [11159.499130] [<ffffffffb9484b76>] iomap_write_begin+0x66/0x100 >>> [11159.499135] [<ffffffffb9484edf>] iomap_write_actor+0xcf/0x1d0 >>> [11159.499140] [<ffffffffb9484e10>] ? iomap_write_end+0x80/0x80 >>> [11159.499144] [<ffffffffb94854e7>] iomap_apply+0xb7/0x150 >>> [11159.499149] [<ffffffffb9485621>] iomap_file_buffered_write+0xa1 >>> /0xe0 >>> [11159.499153] [<ffffffffb9484e10>] ? iomap_write_end+0x80/0x80 >>> [11159.499182] [<ffffffffc05f025d>] xfs_file_buffered_aio_write+0x12d/0x2c0 >>> [xfs] >>> [11159.499213] [<ffffffffc05f057d>] xfs_file_aio_write+0x18d/0x1b0 >>> [xfs] >>> [11159.499217] [<ffffffffb941a533>] do_sync_write+0x93/0xe0 >>> [11159.499222] [<ffffffffb941b010>] vfs_write+0xc0/0x1f0 >>> [11159.499225] [<ffffffffb941c002>] SyS_pwrite64+0x92/0xc0 >>> [11159.499230] [<ffffffffb992076f>] ? system_call_after_swapgs+0xbc/ >>> 0x160 >>> [11159.499234] [<ffffffffb992082f>] system_call_fastpath+0x1c/0x21 >>> [11159.499238] [<ffffffffb992077b>] ? system_call_after_swapgs+0xc8/ >>> 0x160 >>> [11279.488720] INFO: task xfsaild/dm-10:1134 blocked for more than 120 >>> seconds. >>> [11279.490197] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" >>> disables this message. >>> [11279.491665] xfsaild/dm-10 D ffff9720a8660fd0 0 1134 2 >>> 0x00000000 >>> [11279.491671] Call Trace: >>> [11279.491682] [<ffffffffb92a3a2e>] ? try_to_del_timer_sync+0x5e/0x90 >>> [11279.491688] [<ffffffffb9913f79>] schedule+0x29/0x70 >>> [11279.491744] [<ffffffffc060de36>] _xfs_log_force+0x1c6/0x2c0 [xfs] >>> [11279.491750] [<ffffffffb92cf1b0>] ? wake_up_state+0x20/0x20 >>> [11279.491783] [<ffffffffc0619fec>] ? xfsaild+0x16c/0x6f0 [xfs] >>> [11279.491817] [<ffffffffc060df5c>] xfs_log_force+0x2c/0x70 [xfs] >>> [11279.491849] [<ffffffffc0619e80>] ? xfs_trans_ail_cursor_first+0x90/0x90 >>> [xfs] >>> [11279.491880] [<ffffffffc0619fec>] xfsaild+0x16c/0x6f0 [xfs] >>> [11279.491913] [<ffffffffc0619e80>] ? xfs_trans_ail_cursor_first+0x90/0x90 >>> [xfs] >>> [11279.491919] [<ffffffffb92bb161>] kthread+0xd1/0xe0 >>> [11279.491926] [<ffffffffb92bb090>] ? insert_kthread_work+0x40/0x40 >>> [11279.491932] [<ffffffffb9920677>] ret_from_fork_nospec_begin+0x2 >>> 1/0x21 >>> [11279.491936] [<ffffffffb92bb090>] ? insert_kthread_work+0x40/0x40 >>> [11279.491976] INFO: task glusterclogfsyn:14934 blocked for more than >>> 120 seconds. >>> [11279.493466] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" >>> disables this message. >>> [11279.494952] glusterclogfsyn D ffff97209832af70 0 14934 1 >>> 0x00000080 >>> [11279.494957] Call Trace: >>> [11279.494979] [<ffffffffc0309839>] ? __split_and_process_bio+0x2e9/0x520 >>> [dm_mod] >>> [11279.494983] [<ffffffffb9913f79>] schedule+0x29/0x70 >>> [11279.494987] [<ffffffffb99118e9>] schedule_timeout+0x239/0x2c0 >>> [11279.494997] [<ffffffffc0309d98>] ? dm_make_request+0x128/0x1a0 >>> [dm_mod] >>> [11279.495001] [<ffffffffb991348d>] io_schedule_timeout+0xad/0x130 >>> [11279.495005] [<ffffffffb99145ad>] wait_for_completion_io+0xfd/0x140 >>> [11279.495010] [<ffffffffb92cf1b0>] ? wake_up_state+0x20/0x20 >>> [11279.495016] [<ffffffffb951e574>] blkdev_issue_flush+0xb4/0x110 >>> [11279.495049] [<ffffffffc06064b9>] xfs_blkdev_issue_flush+0x19/0x20 >>> [xfs] >>> [11279.495079] [<ffffffffc05eec40>] xfs_file_fsync+0x1b0/0x1e0 [xfs] >>> [11279.495086] [<ffffffffb944f0e7>] do_fsync+0x67/0xb0 >>> [11279.495090] [<ffffffffb992076f>] ? system_call_after_swapgs+0xbc/ >>> 0x160 >>> [11279.495094] [<ffffffffb944f3d0>] SyS_fsync+0x10/0x20 >>> [11279.495098] [<ffffffffb992082f>] system_call_fastpath+0x1c/0x21 >>> [11279.495102] [<ffffffffb992077b>] ? system_call_after_swapgs+0xc8/ >>> 0x160 >>> [11279.495105] INFO: task glusterposixfsy:14941 blocked for more than >>> 120 seconds. >>> [11279.496606] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" >>> disables this message. >>> [11279.498114] glusterposixfsy D ffff972495f84f10 0 14941 1 >>> 0x00000080 >>> [11279.498118] Call Trace: >>> [11279.498134] [<ffffffffc0309839>] ? __split_and_process_bio+0x2e9/0x520 >>> [dm_mod] >>> [11279.498138] [<ffffffffb9913f79>] schedule+0x29/0x70 >>> [11279.498142] [<ffffffffb99118e9>] schedule_timeout+0x239/0x2c0 >>> [11279.498152] [<ffffffffc0309d98>] ? dm_make_request+0x128/0x1a0 >>> [dm_mod] >>> [11279.498156] [<ffffffffb991348d>] io_schedule_timeout+0xad/0x130 >>> [11279.498160] [<ffffffffb99145ad>] wait_for_completion_io+0xfd/0x140 >>> [11279.498165] [<ffffffffb92cf1b0>] ? wake_up_state+0x20/0x20 >>> [11279.498169] [<ffffffffb951e574>] blkdev_issue_flush+0xb4/0x110 >>> [11279.498202] [<ffffffffc06064b9>] xfs_blkdev_issue_flush+0x19/0x20 >>> [xfs] >>> [11279.498231] [<ffffffffc05eec40>] xfs_file_fsync+0x1b0/0x1e0 [xfs] >>> [11279.498238] [<ffffffffb944f0e7>] do_fsync+0x67/0xb0 >>> [11279.498242] [<ffffffffb992076f>] ? system_call_after_swapgs+0xbc/ >>> 0x160 >>> [11279.498246] [<ffffffffb944f3f3>] SyS_fdatasync+0x13/0x20 >>> [11279.498250] [<ffffffffb992082f>] system_call_fastpath+0x1c/0x21 >>> [11279.498254] [<ffffffffb992077b>] ? system_call_after_swapgs+0xc8/ >>> 0x160 >>> [11279.498257] INFO: task glusteriotwr1:14950 blocked for more than 120 >>> seconds. >>> [11279.499789] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" >>> disables this message. >>> [11279.501343] glusteriotwr1 D ffff97208b6daf70 0 14950 1 >>> 0x00000080 >>> [11279.501348] Call Trace: >>> [11279.501353] [<ffffffffb9913f79>] schedule+0x29/0x70 >>> [11279.501390] [<ffffffffc060e388>] _xfs_log_force_lsn+0x2e8/0x340 >>> [xfs] >>> [11279.501396] [<ffffffffb92cf1b0>] ? wake_up_state+0x20/0x20 >>> [11279.501428] [<ffffffffc05eeb97>] xfs_file_fsync+0x107/0x1e0 [xfs] >>> [11279.501432] [<ffffffffb944ef3f>] generic_write_sync+0x4f/0x70 >>> [11279.501461] [<ffffffffc05f0545>] xfs_file_aio_write+0x155/0x1b0 >>> [xfs] >>> [11279.501466] [<ffffffffb941a533>] do_sync_write+0x93/0xe0 >>> [11279.501471] [<ffffffffb941b010>] vfs_write+0xc0/0x1f0 >>> [11279.501475] [<ffffffffb941c002>] SyS_pwrite64+0x92/0xc0 >>> [11279.501479] [<ffffffffb992076f>] ? system_call_after_swapgs+0xbc/ >>> 0x160 >>> [11279.501483] [<ffffffffb992082f>] system_call_fastpath+0x1c/0x21 >>> [11279.501489] [<ffffffffb992077b>] ? system_call_after_swapgs+0xc8/ >>> 0x160 >>> [11279.501493] INFO: task glusteriotwr4:14953 blocked for more than 120 >>> seconds. >>> [11279.503047] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" >>> disables this message. >>> [11279.504630] glusteriotwr4 D ffff972499f2bf40 0 14953 1 >>> 0x00000080 >>> [11279.504635] Call Trace: >>> [11279.504640] [<ffffffffb9913f79>] schedule+0x29/0x70 >>> [11279.504676] [<ffffffffc060e388>] _xfs_log_force_lsn+0x2e8/0x340 >>> [xfs] >>> [11279.504681] [<ffffffffb92cf1b0>] ? wake_up_state+0x20/0x20 >>> [11279.504710] [<ffffffffc05eeb97>] xfs_file_fsync+0x107/0x1e0 [xfs] >>> [11279.504714] [<ffffffffb944f0e7>] do_fsync+0x67/0xb0 >>> [11279.504718] [<ffffffffb992076f>] ? system_call_after_swapgs+0xbc/ >>> 0x160 >>> [11279.504722] [<ffffffffb944f3d0>] SyS_fsync+0x10/0x20 >>> [11279.504725] [<ffffffffb992082f>] system_call_fastpath+0x1c/0x21 >>> [11279.504730] [<ffffffffb992077b>] ? system_call_after_swapgs+0xc8/ >>> 0x160 >>> [12127.466494] perf: interrupt took too long (8263 > 8150), lowering >>> kernel.perf_event_max_sample_rate to 24000 >>> >>> -------------------- >>> I think this is the cause of the massive ovirt performance issues >>> irrespective of gluster volume. At the time this happened, I was also >>> ssh'ed into the host, and was doing some rpm querry commands. I had just >>> run rpm -qa |grep glusterfs (to verify what version was actually >>> installed), and that command took almost 2 minutes to return! Normally it >>> takes less than 2 seconds. That is all pure local SSD IO, too.... >>> >>> I'm no expert, but its my understanding that anytime a software causes >>> these kinds of issues, its a serious bug in the software, even if its >>> mis-handled exceptions. Is this correct? >>> >>> --Jim >>> >>> On Tue, May 29, 2018 at 3:01 PM, Jim Kusznir <jim(a)palousetech.com&gt; >>> wrote: >>> >>>> I think this is the profile information for one of the volumes that >>>> lives on the SSDs and is fully operational with no down/problem disks: >>>> >>>> [root@ovirt2 yum.repos.d]# gluster volume profile data info >>>> Brick: ovirt2.nwfiber.com:/gluster/brick2/data >>>> ---------------------------------------------- >>>> Cumulative Stats: >>>> Block Size: 256b+ 512b+ >>>> 1024b+ >>>> No. of Reads: 983 2696 >>>> 1059 >>>> No. of Writes: 0 1113 >>>> 302 >>>> >>>> Block Size: 2048b+ 4096b+ >>>> 8192b+ >>>> No. of Reads: 852 88608 >>>> 53526 >>>> No. of Writes: 522 812340 >>>> 76257 >>>> >>>> Block Size: 16384b+ 32768b+ >>>> 65536b+ >>>> No. of Reads: 54351 241901 >>>> 15024 >>>> No. of Writes: 21636 8656 >>>> 8976 >>>> >>>> Block Size: 131072b+ >>>> No. of Reads: 524156 >>>> No. of Writes: 296071 >>>> %-latency Avg-latency Min-Latency Max-Latency No. of calls >>>> Fop >>>> --------- ----------- ----------- ----------- ------------ >>>> ---- >>>> 0.00 0.00 us 0.00 us 0.00 us 4189 >>>> RELEASE >>>> 0.00 0.00 us 0.00 us 0.00 us 1257 >>>> RELEASEDIR >>>> 0.00 46.19 us 12.00 us 187.00 us 69 >>>> FLUSH >>>> 0.00 147.00 us 78.00 us 367.00 us 86 >>>> REMOVEXATTR >>>> 0.00 223.46 us 24.00 us 1166.00 us 149 >>>> READDIR >>>> 0.00 565.34 us 76.00 us 3639.00 us 88 >>>> FTRUNCATE >>>> 0.00 263.28 us 20.00 us 28385.00 us 228 >>>> LK >>>> 0.00 98.84 us 2.00 us 880.00 us 1198 >>>> OPENDIR >>>> 0.00 91.59 us 26.00 us 10371.00 us 3853 >>>> STATFS >>>> 0.00 494.14 us 17.00 us 193439.00 us 1171 >>>> GETXATTR >>>> 0.00 299.42 us 35.00 us 9799.00 us 2044 >>>> READDIRP >>>> 0.00 1965.31 us 110.00 us 382258.00 us 321 >>>> XATTROP >>>> 0.01 113.40 us 24.00 us 61061.00 us 8134 >>>> STAT >>>> 0.01 755.38 us 57.00 us 607603.00 us 3196 >>>> DISCARD >>>> 0.05 2690.09 us 58.00 us 2704761.00 us 3206 >>>> OPEN >>>> 0.10 119978.25 us 97.00 us 9406684.00 us 154 >>>> SETATTR >>>> 0.18 101.73 us 28.00 us 700477.00 us 313379 >>>> FSTAT >>>> 0.23 1059.84 us 25.00 us 2716124.00 us 38255 >>>> LOOKUP >>>> 0.47 1024.11 us 54.00 us 6197164.00 us 81455 >>>> FXATTROP >>>> 1.72 2984.00 us 15.00 us 37098954.00 us 103020 >>>> FINODELK >>>> 5.92 44315.32 us 51.00 us 24731536.00 us 23957 >>>> FSYNC >>>> 13.27 2399.78 us 25.00 us 22089540.00 us 991005 >>>> READ >>>> 37.00 5980.43 us 52.00 us 22099889.00 us 1108976 >>>> WRITE >>>> 41.04 5452.75 us 13.00 us 22102452.00 us 1349053 >>>> INODELK >>>> >>>> Duration: 10026 seconds >>>> Data Read: 80046027759 bytes >>>> Data Written: 44496632320 bytes >>>> >>>> Interval 1 Stats: >>>> Block Size: 256b+ 512b+ >>>> 1024b+ >>>> No. of Reads: 983 2696 >>>> 1059 >>>> No. of Writes: 0 838 >>>> 185 >>>> >>>> Block Size: 2048b+ 4096b+ >>>> 8192b+ >>>> No. of Reads: 852 85856 >>>> 51575 >>>> No. of Writes: 382 705802 >>>> 57812 >>>> >>>> Block Size: 16384b+ 32768b+ >>>> 65536b+ >>>> No. of Reads: 52673 232093 >>>> 14984 >>>> No. of Writes: 13499 4908 >>>> 4242 >>>> >>>> Block Size: 131072b+ >>>> No. of Reads: 460040 >>>> No. of Writes: 6411 >>>> %-latency Avg-latency Min-Latency Max-Latency No. of calls >>>> Fop >>>> --------- ----------- ----------- ----------- ------------ >>>> ---- >>>> 0.00 0.00 us 0.00 us 0.00 us 2093 >>>> RELEASE >>>> 0.00 0.00 us 0.00 us 0.00 us 1093 >>>> RELEASEDIR >>>> 0.00 53.38 us 26.00 us 111.00 us 16 >>>> FLUSH >>>> 0.00 145.14 us 78.00 us 367.00 us 71 >>>> REMOVEXATTR >>>> 0.00 190.96 us 114.00 us 298.00 us 71 >>>> SETATTR >>>> 0.00 213.38 us 24.00 us 1145.00 us 90 >>>> READDIR >>>> 0.00 263.28 us 20.00 us 28385.00 us 228 >>>> LK >>>> 0.00 101.76 us 2.00 us 880.00 us 1093 >>>> OPENDIR >>>> 0.01 93.60 us 27.00 us 10371.00 us 3090 >>>> STATFS >>>> 0.02 537.47 us 17.00 us 193439.00 us 1038 >>>> GETXATTR >>>> 0.03 297.44 us 35.00 us 9799.00 us 1990 >>>> READDIRP >>>> 0.03 2357.28 us 110.00 us 382258.00 us 253 >>>> XATTROP >>>> 0.04 385.93 us 58.00 us 47593.00 us 2091 >>>> OPEN >>>> 0.04 114.86 us 24.00 us 61061.00 us 7715 >>>> STAT >>>> 0.06 444.59 us 57.00 us 333240.00 us 3053 >>>> DISCARD >>>> 0.42 316.24 us 25.00 us 290728.00 us 29823 >>>> LOOKUP >>>> 0.73 257.92 us 54.00 us 344812.00 us 63296 >>>> FXATTROP >>>> 1.37 98.30 us 28.00 us 67621.00 us 313172 >>>> FSTAT >>>> 1.58 2124.69 us 51.00 us 849200.00 us 16717 >>>> FSYNC >>>> 5.73 162.46 us 52.00 us 748492.00 us 794079 >>>> WRITE >>>> 7.19 2065.17 us 16.00 us 37098954.00 us 78381 >>>> FINODELK >>>> 36.44 886.32 us 25.00 us 2216436.00 us 925421 >>>> READ >>>> 46.30 1178.04 us 13.00 us 1700704.00 us 884635 >>>> INODELK >>>> >>>> Duration: 7485 seconds >>>> Data Read: 71250527215 bytes >>>> Data Written: 5119903744 bytes >>>> >>>> Brick: ovirt3.nwfiber.com:/gluster/brick2/data >>>> ---------------------------------------------- >>>> Cumulative Stats: >>>> Block Size: 1b+ >>>> No. of Reads: 0 >>>> No. of Writes: 3264419 >>>> %-latency Avg-latency Min-Latency Max-Latency No. of calls >>>> Fop >>>> --------- ----------- ----------- ----------- ------------ >>>> ---- >>>> 0.00 0.00 us 0.00 us 0.00 us 90 >>>> FORGET >>>> 0.00 0.00 us 0.00 us 0.00 us 9462 >>>> RELEASE >>>> 0.00 0.00 us 0.00 us 0.00 us 4254 >>>> RELEASEDIR >>>> 0.00 50.52 us 13.00 us 190.00 us 71 >>>> FLUSH >>>> 0.00 186.97 us 87.00 us 713.00 us 86 >>>> REMOVEXATTR >>>> 0.00 79.32 us 33.00 us 189.00 us 228 >>>> LK >>>> 0.00 220.98 us 129.00 us 513.00 us 86 >>>> SETATTR >>>> 0.01 259.30 us 26.00 us 2632.00 us 137 >>>> READDIR >>>> 0.02 322.76 us 145.00 us 2125.00 us 321 >>>> XATTROP >>>> 0.03 109.55 us 2.00 us 1258.00 us 1193 >>>> OPENDIR >>>> 0.05 70.21 us 21.00 us 431.00 us 3196 >>>> DISCARD >>>> 0.05 169.26 us 21.00 us 2315.00 us 1545 >>>> GETXATTR >>>> 0.12 176.85 us 63.00 us 2844.00 us 3206 >>>> OPEN >>>> 0.61 303.49 us 90.00 us 3085.00 us 9633 >>>> FSTAT >>>> 2.44 305.66 us 28.00 us 3716.00 us 38230 >>>> LOOKUP >>>> 4.52 266.22 us 55.00 us 53424.00 us 81455 >>>> FXATTROP >>>> 6.96 1397.99 us 51.00 us 64822.00 us 23889 >>>> FSYNC >>>> 16.48 84.74 us 25.00 us 6917.00 us 932592 >>>> WRITE >>>> 30.16 106.90 us 13.00 us 3920189.00 us 1353046 >>>> INODELK >>>> 38.55 1794.52 us 14.00 us 16210553.00 us 103039 >>>> FINODELK >>>> >>>> Duration: 66562 seconds >>>> Data Read: 0 bytes >>>> Data Written: 3264419 bytes >>>> >>>> Interval 1 Stats: >>>> Block Size: 1b+ >>>> No. of Reads: 0 >>>> No. of Writes: 794080 >>>> %-latency Avg-latency Min-Latency Max-Latency No. of calls >>>> Fop >>>> --------- ----------- ----------- ----------- ------------ >>>> ---- >>>> 0.00 0.00 us 0.00 us 0.00 us 2093 >>>> RELEASE >>>> 0.00 0.00 us 0.00 us 0.00 us 1093 >>>> RELEASEDIR >>>> 0.00 70.31 us 26.00 us 125.00 us 16 >>>> FLUSH >>>> 0.00 193.10 us 103.00 us 713.00 us 71 >>>> REMOVEXATTR >>>> 0.01 227.32 us 133.00 us 513.00 us 71 >>>> SETATTR >>>> 0.01 79.32 us 33.00 us 189.00 us 228 >>>> LK >>>> 0.01 259.83 us 35.00 us 1138.00 us 89 >>>> READDIR >>>> 0.03 318.26 us 145.00 us 2047.00 us 253 >>>> XATTROP >>>> 0.04 112.67 us 3.00 us 1258.00 us 1093 >>>> OPENDIR >>>> 0.06 167.98 us 23.00 us 1951.00 us 1014 >>>> GETXATTR >>>> 0.08 70.97 us 22.00 us 431.00 us 3053 >>>> DISCARD >>>> 0.13 183.78 us 66.00 us 2844.00 us 2091 >>>> OPEN >>>> 1.01 303.82 us 90.00 us 3085.00 us 9610 >>>> FSTAT >>>> 3.27 316.59 us 30.00 us 3716.00 us 29820 >>>> LOOKUP >>>> 5.83 265.79 us 59.00 us 53424.00 us 63296 >>>> FXATTROP >>>> 7.95 1373.89 us 51.00 us 64822.00 us 16717 >>>> FSYNC >>>> 23.17 851.99 us 14.00 us 16210553.00 us 78555 >>>> FINODELK >>>> 24.04 87.44 us 27.00 us 6917.00 us 794081 >>>> WRITE >>>> 34.36 111.91 us 14.00 us 984871.00 us 886790 >>>> INODELK >>>> >>>> Duration: 7485 seconds >>>> Data Read: 0 bytes >>>> Data Written: 794080 bytes >>>> >>>> >>>> ----------------------- >>>> Here is the data from the volume that is backed by the SHDDs and has >>>> one failed disk: >>>> [root@ovirt2 yum.repos.d]# gluster volume profile data-hdd info >>>> Brick: 172.172.1.12:/gluster/brick3/data-hdd >>>> -------------------------------------------- >>>> Cumulative Stats: >>>> Block Size: 256b+ 512b+ >>>> 1024b+ >>>> No. of Reads: 1702 86 >>>> 16 >>>> No. of Writes: 0 767 >>>> 71 >>>> >>>> Block Size: 2048b+ 4096b+ >>>> 8192b+ >>>> No. of Reads: 19 51841 >>>> 2049 >>>> No. of Writes: 76 60668 >>>> 35727 >>>> >>>> Block Size: 16384b+ 32768b+ >>>> 65536b+ >>>> No. of Reads: 1744 639 >>>> 1088 >>>> No. of Writes: 8524 2410 >>>> 1285 >>>> >>>> Block Size: 131072b+ >>>> No. of Reads: 771999 >>>> No. of Writes: 29584 >>>> %-latency Avg-latency Min-Latency Max-Latency No. of calls >>>> Fop >>>> --------- ----------- ----------- ----------- ------------ >>>> ---- >>>> 0.00 0.00 us 0.00 us 0.00 us 2902 >>>> RELEASE >>>> 0.00 0.00 us 0.00 us 0.00 us 1517 >>>> RELEASEDIR >>>> 0.00 197.00 us 197.00 us 197.00 us 1 >>>> FTRUNCATE >>>> 0.00 70.24 us 16.00 us 758.00 us 51 >>>> FLUSH >>>> 0.00 143.93 us 82.00 us 305.00 us 57 >>>> REMOVEXATTR >>>> 0.00 178.63 us 105.00 us 712.00 us 60 >>>> SETATTR >>>> 0.00 67.30 us 19.00 us 572.00 us 555 >>>> LK >>>> 0.00 322.80 us 23.00 us 4673.00 us 138 >>>> READDIR >>>> 0.00 336.56 us 106.00 us 11994.00 us 237 >>>> XATTROP >>>> 0.00 84.70 us 28.00 us 1071.00 us 3469 >>>> STATFS >>>> 0.01 387.75 us 2.00 us 146017.00 us 1467 >>>> OPENDIR >>>> 0.01 148.59 us 21.00 us 64374.00 us 4454 >>>> STAT >>>> 0.02 783.02 us 16.00 us 93502.00 us 1902 >>>> GETXATTR >>>> 0.03 1516.10 us 17.00 us 210690.00 us 1364 >>>> ENTRYLK >>>> 0.03 2555.47 us 300.00 us 674454.00 us 1064 >>>> READDIRP >>>> 0.07 85.74 us 19.00 us 68340.00 us 62849 >>>> FSTAT >>>> 0.07 1978.12 us 59.00 us 202596.00 us 2729 >>>> OPEN >>>> 0.22 708.57 us 15.00 us 394799.00 us 25447 >>>> LOOKUP >>>> 5.94 2331.74 us 15.00 us 1099530.00 us 207534 >>>> FINODELK >>>> 7.31 8311.75 us 58.00 us 1800216.00 us 71668 >>>> FXATTROP >>>> 12.49 7735.19 us 51.00 us 3595513.00 us 131642 >>>> WRITE >>>> 17.70 957.08 us 16.00 us 13700466.00 us 1508160 >>>> INODELK >>>> 24.55 2546.43 us 26.00 us 5077347.00 us 786060 >>>> READ >>>> 31.56 49699.15 us 47.00 us 3746331.00 us 51777 >>>> FSYNC >>>> >>>> Duration: 10101 seconds >>>> Data Read: 101562897361 bytes >>>> Data Written: 4834450432 bytes >>>> >>>> Interval 0 Stats: >>>> Block Size: 256b+ 512b+ >>>> 1024b+ >>>> No. of Reads: 1702 86 >>>> 16 >>>> No. of Writes: 0 767 >>>> 71 >>>> >>>> Block Size: 2048b+ 4096b+ >>>> 8192b+ >>>> No. of Reads: 19 51841 >>>> 2049 >>>> No. of Writes: 76 60668 >>>> 35727 >>>> >>>> Block Size: 16384b+ 32768b+ >>>> 65536b+ >>>> No. of Reads: 1744 639 >>>> 1088 >>>> No. of Writes: 8524 2410 >>>> 1285 >>>> >>>> Block Size: 131072b+ >>>> No. of Reads: 771999 >>>> No. of Writes: 29584 >>>> %-latency Avg-latency Min-Latency Max-Latency No. of calls >>>> Fop >>>> --------- ----------- ----------- ----------- ------------ >>>> ---- >>>> 0.00 0.00 us 0.00 us 0.00 us 2902 >>>> RELEASE >>>> 0.00 0.00 us 0.00 us 0.00 us 1517 >>>> RELEASEDIR >>>> 0.00 197.00 us 197.00 us 197.00 us 1 >>>> FTRUNCATE >>>> 0.00 70.24 us 16.00 us 758.00 us 51 >>>> FLUSH >>>> 0.00 143.93 us 82.00 us 305.00 us 57 >>>> REMOVEXATTR >>>> 0.00 178.63 us 105.00 us 712.00 us 60 >>>> SETATTR >>>> 0.00 67.30 us 19.00 us 572.00 us 555 >>>> LK >>>> 0.00 322.80 us 23.00 us 4673.00 us 138 >>>> READDIR >>>> 0.00 336.56 us 106.00 us 11994.00 us 237 >>>> XATTROP >>>> 0.00 84.70 us 28.00 us 1071.00 us 3469 >>>> STATFS >>>> 0.01 387.75 us 2.00 us 146017.00 us 1467 >>>> OPENDIR >>>> 0.01 148.59 us 21.00 us 64374.00 us 4454 >>>> STAT >>>> 0.02 783.02 us 16.00 us 93502.00 us 1902 >>>> GETXATTR >>>> 0.03 1516.10 us 17.00 us 210690.00 us 1364 >>>> ENTRYLK >>>> 0.03 2555.47 us 300.00 us 674454.00 us 1064 >>>> READDIRP >>>> 0.07 85.73 us 19.00 us 68340.00 us 62849 >>>> FSTAT >>>> 0.07 1978.12 us 59.00 us 202596.00 us 2729 >>>> OPEN >>>> 0.22 708.57 us 15.00 us 394799.00 us 25447 >>>> LOOKUP >>>> 5.94 2334.57 us 15.00 us 1099530.00 us 207534 >>>> FINODELK >>>> 7.31 8311.49 us 58.00 us 1800216.00 us 71668 >>>> FXATTROP >>>> 12.49 7735.32 us 51.00 us 3595513.00 us 131642 >>>> WRITE >>>> 17.71 957.08 us 16.00 us 13700466.00 us 1508160 >>>> INODELK >>>> 24.56 2546.42 us 26.00 us 5077347.00 us 786060 >>>> READ >>>> 31.54 49651.63 us 47.00 us 3746331.00 us 51777 >>>> FSYNC >>>> >>>> Duration: 10101 seconds >>>> Data Read: 101562897361 bytes >>>> Data Written: 4834450432 bytes >>>> >>>> >>>> On Tue, May 29, 2018 at 2:55 PM, Jim Kusznir <jim(a)palousetech.com&gt; >>>> wrote: >>>> >>>>> Thank you for your response. >>>>> >>>>> I have 4 gluster volumes. 3 are replica 2 + arbitrator. replica >>>>> bricks are on ovirt1 and ovirt2, arbitrator on ovirt3. The 4th volume is >>>>> replica 3, with a brick on all three ovirt machines. >>>>> >>>>> The first 3 volumes are on an SSD disk; the 4th is on a Seagate SSHD >>>>> (same in all three machines). On ovirt3, the SSHD has reported hard IO >>>>> failures, and that brick is offline. However, the other two replicas are >>>>> fully operational (although they still show contents in the heal info >>>>> command that won't go away, but that may be the case until I replace the >>>>> failed disk). >>>>> >>>>> What is bothering me is that ALL 4 gluster volumes are showing >>>>> horrible performance issues. At this point, as the bad disk has been >>>>> completely offlined, I would expect gluster to perform at normal speed, but >>>>> that is definitely not the case. >>>>> >>>>> I've also noticed that the performance hits seem to come in waves: >>>>> things seem to work acceptably (but slow) for a while, then suddenly, its >>>>> as if all disk IO on all volumes (including non-gluster local OS disk >>>>> volumes for the hosts) pause for about 30 seconds, then IO resumes again. >>>>> During those times, I start getting VM not responding and host not >>>>> responding notices as well as the applications having major issues. >>>>> >>>>> I've shut down most of my VMs and am down to just my essential core >>>>> VMs (shedded about 75% of my VMs). I still am experiencing the same issues. >>>>> >>>>> Am I correct in believing that once the failed disk was brought >>>>> offline that performance should return to normal? >>>>> >>>>> On Tue, May 29, 2018 at 1:27 PM, Alex K <rightkicktech(a)gmail.com&gt; >>>>> wrote: >>>>> >>>>>> I would check disks status and accessibility of mount points where >>>>>> your gluster volumes reside. >>>>>> >>>>>> On Tue, May 29, 2018, 22:28 Jim Kusznir <jim(a)palousetech.com&gt; wrote: >>>>>> >>>>>>> On one ovirt server, I'm now seeing these messages: >>>>>>> [56474.239725] blk_update_request: 63 callbacks suppressed >>>>>>> [56474.239732] blk_update_request: I/O error, dev dm-2, sector 0 >>>>>>> [56474.240602] blk_update_request: I/O error, dev dm-2, sector >>>>>>> 3905945472 >>>>>>> [56474.241346] blk_update_request: I/O error, dev dm-2, sector >>>>>>> 3905945584 >>>>>>> [56474.242236] blk_update_request: I/O error, dev dm-2, sector 2048 >>>>>>> [56474.243072] blk_update_request: I/O error, dev dm-2, sector >>>>>>> 3905943424 >>>>>>> [56474.243997] blk_update_request: I/O error, dev dm-2, sector >>>>>>> 3905943536 >>>>>>> [56474.247347] blk_update_request: I/O error, dev dm-2, sector 0 >>>>>>> [56474.248315] blk_update_request: I/O error, dev dm-2, sector >>>>>>> 3905945472 >>>>>>> [56474.249231] blk_update_request: I/O error, dev dm-2, sector >>>>>>> 3905945584 >>>>>>> [56474.250221] blk_update_request: I/O error, dev dm-2, sector 2048 >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> On Tue, May 29, 2018 at 11:59 AM, Jim Kusznir <jim(a)palousetech.com&gt; >>>>>>> wrote: >>>>>>> >>>>>>>> I see in messages on ovirt3 (my 3rd machine, the one upgraded to >>>>>>>> 4.2): >>>>>>>> >>>>>>>> May 29 11:54:41 ovirt3 ovs-vsctl: ovs|00001|db_ctl_base|ERR|unix:/var/run/openvswitch/db.sock: >>>>>>>> database connection failed (No such file or directory) >>>>>>>> May 29 11:54:51 ovirt3 ovs-vsctl: ovs|00001|db_ctl_base|ERR|unix:/var/run/openvswitch/db.sock: >>>>>>>> database connection failed (No such file or directory) >>>>>>>> May 29 11:55:01 ovirt3 ovs-vsctl: ovs|00001|db_ctl_base|ERR|unix:/var/run/openvswitch/db.sock: >>>>>>>> database connection failed (No such file or directory) >>>>>>>> (appears a lot). >>>>>>>> >>>>>>>> I also found on the ssh session of that, some sysv warnings about >>>>>>>> the backing disk for one of the gluster volumes (straight replica 3). The >>>>>>>> glusterfs process for that disk on that machine went offline. Its my >>>>>>>> understanding that it should continue to work with the other two machines >>>>>>>> while I attempt to replace that disk, right? Attempted writes (touching an >>>>>>>> empty file) can take 15 seconds, repeating it later will be much faster. >>>>>>>> >>>>>>>> Gluster generates a bunch of different log files, I don't know >>>>>>>> what ones you want, or from which machine(s). >>>>>>>> >>>>>>>> How do I do "volume profiling"? >>>>>>>> >>>>>>>> Thanks! >>>>>>>> >>>>>>>> On Tue, May 29, 2018 at 11:53 AM, Sahina Bose <sabose(a)redhat.com&gt; >>>>>>>> wrote: >>>>>>>> >>>>>>>>> Do you see errors reported in the mount logs for the volume? If >>>>>>>>> so, could you attach the logs? >>>>>>>>> Any issues with your underlying disks. Can you also attach output >>>>>>>>> of volume profiling? >>>>>>>>> >>>>>>>>> On Wed, May 30, 2018 at 12:13 AM, Jim Kusznir < >>>>>>>>> jim(a)palousetech.com&gt; wrote: >>>>>>>>> >>>>>>>>>> Ok, things have gotten MUCH worse this morning. I'm getting >>>>>>>>>> random errors from VMs, right now, about a third of my VMs have been paused >>>>>>>>>> due to storage issues, and most of the remaining VMs are not performing >>>>>>>>>> well. >>>>>>>>>> >>>>>>>>>> At this point, I am in full EMERGENCY mode, as my production >>>>>>>>>> services are now impacted, and I'm getting calls coming in with problems... >>>>>>>>>> >>>>>>>>>> I'd greatly appreciate help...VMs are running VERY slowly (when >>>>>>>>>> they run), and they are steadily getting worse. I don't know why. I was >>>>>>>>>> seeing CPU peaks (to 100%) on several VMs, in perfect sync, for a few >>>>>>>>>> minutes at a time (while the VM became unresponsive and any VMs I was >>>>>>>>>> logged into that were linux were giving me the CPU stuck messages in my >>>>>>>>>> origional post). Is all this storage related? >>>>>>>>>> >>>>>>>>>> I also have two different gluster volumes for VM storage, and >>>>>>>>>> only one had the issues, but now VMs in both are being affected at the same >>>>>>>>>> time and same way. >>>>>>>>>> >>>>>>>>>> --Jim >>>>>>>>>> >>>>>>>>>> On Mon, May 28, 2018 at 10:50 PM, Sahina Bose <sabose(a)redhat.com >>>>>>>>>> > wrote: >>>>>>>>>> >>>>>>>>>>> [Adding gluster-users to look at the heal issue] >>>>>>>>>>> >>>>>>>>>>> On Tue, May 29, 2018 at 9:17 AM, Jim Kusznir < >>>>>>>>>>> jim(a)palousetech.com&gt; wrote: >>>>>>>>>>> >>>>>>>>>>>> Hello: >>>>>>>>>>>> >>>>>>>>>>>> I've been having some cluster and gluster performance issues >>>>>>>>>>>> lately. I also found that my cluster was out of date, and was trying to >>>>>>>>>>>> apply updates (hoping to fix some of these), and discovered the ovirt 4.1 >>>>>>>>>>>> repos were taken completely offline. So, I was forced to begin an upgrade >>>>>>>>>>>> to 4.2. According to docs I found/read, I needed only add the new repo, do >>>>>>>>>>>> a yum update, reboot, and be good on my hosts (did the yum update, the >>>>>>>>>>>> engine-setup on my hosted engine). Things seemed to work relatively well, >>>>>>>>>>>> except for a gluster sync issue that showed up. >>>>>>>>>>>> >>>>>>>>>>>> My cluster is a 3 node hyperconverged cluster. I upgraded the >>>>>>>>>>>> hosted engine first, then engine 3. When engine 3 came back up, for some >>>>>>>>>>>> reason one of my gluster volumes would not sync. Here's sample output: >>>>>>>>>>>> >>>>>>>>>>>> [root@ovirt3 ~]# gluster volume heal data-hdd info >>>>>>>>>>>> Brick 172.172.1.11:/gluster/brick3/data-hdd >>>>>>>>>>>> /cc65f671-3377-494a-a7d4-1d9f7c3ae46c/images/48d7ecb8-7ac5-4 >>>>>>>>>>>> 725-bca5-b3519681cf2f/0d6080b0-7018-4fa3-bb82-1dd9ef07d9b9 >>>>>>>>>>>> /cc65f671-3377-494a-a7d4-1d9f7c3ae46c/images/647be733-f153-4 >>>>>>>>>>>> cdc-85bd-ba72544c2631/b453a300-0602-4be1-8310-8bd5abe00971 >>>>>>>>>>>> /cc65f671-3377-494a-a7d4-1d9f7c3ae46c/images/6da854d1-b6be-4 >>>>>>>>>>>> 46b-9bf0-90a0dbbea830/3c93bd1f-b7fa-4aa2-b445-6904e31839ba >>>>>>>>>>>> /cc65f671-3377-494a-a7d4-1d9f7c3ae46c/images/7f647567-d18c-4 >>>>>>>>>>>> 4f1-a58e-9b8865833acb/f9364470-9770-4bb1-a6b9-a54861849625 >>>>>>>>>>>> /cc65f671-3377-494a-a7d4-1d9f7c3ae46c/images/f3c8e7aa-6ef2-4 >>>>>>>>>>>> 2a7-93d4-e0a4df6dd2fa/2eb0b1ad-2606-44ef-9cd3-ae59610a504b >>>>>>>>>>>> /cc65f671-3377-494a-a7d4-1d9f7c3ae46c/images/b1ea3f62-0f05-4 >>>>>>>>>>>> ded-8c82-9c91c90e0b61/d5d6bf5a-499f-431d-9013-5453db93ed32 >>>>>>>>>>>> /cc65f671-3377-494a-a7d4-1d9f7c3ae46c/images/8c8b5147-e9d6-4 >>>>>>>>>>>> 810-b45b-185e3ed65727/16f08231-93b0-489d-a2fd-687b6bf88eaa >>>>>>>>>>>> /cc65f671-3377-494a-a7d4-1d9f7c3ae46c/images/12924435-b9c2-4 >>>>>>>>>>>> aab-ba19-1c1bc31310ef/07b3db69-440e-491e-854c-bbfa18a7cff2 >>>>>>>>>>>> Status: Connected >>>>>>>>>>>> Number of entries: 8 >>>>>>>>>>>> >>>>>>>>>>>> Brick 172.172.1.12:/gluster/brick3/data-hdd >>>>>>>>>>>> /cc65f671-3377-494a-a7d4-1d9f7c3ae46c/images/48d7ecb8-7ac5-4 >>>>>>>>>>>> 725-bca5-b3519681cf2f/0d6080b0-7018-4fa3-bb82-1dd9ef07d9b9 >>>>>>>>>>>> /cc65f671-3377-494a-a7d4-1d9f7c3ae46c/images/647be733-f153-4 >>>>>>>>>>>> cdc-85bd-ba72544c2631/b453a300-0602-4be1-8310-8bd5abe00971 >>>>>>>>>>>> /cc65f671-3377-494a-a7d4-1d9f7c3ae46c/images/b1ea3f62-0f05-4 >>>>>>>>>>>> ded-8c82-9c91c90e0b61/d5d6bf5a-499f-431d-9013-5453db93ed32 >>>>>>>>>>>> /cc65f671-3377-494a-a7d4-1d9f7c3ae46c/images/6da854d1-b6be-4 >>>>>>>>>>>> 46b-9bf0-90a0dbbea830/3c93bd1f-b7fa-4aa2-b445-6904e31839ba >>>>>>>>>>>> /cc65f671-3377-494a-a7d4-1d9f7c3ae46c/images/7f647567-d18c-4 >>>>>>>>>>>> 4f1-a58e-9b8865833acb/f9364470-9770-4bb1-a6b9-a54861849625 >>>>>>>>>>>> /cc65f671-3377-494a-a7d4-1d9f7c3ae46c/images/8c8b5147-e9d6-4 >>>>>>>>>>>> 810-b45b-185e3ed65727/16f08231-93b0-489d-a2fd-687b6bf88eaa >>>>>>>>>>>> /cc65f671-3377-494a-a7d4-1d9f7c3ae46c/images/12924435-b9c2-4 >>>>>>>>>>>> aab-ba19-1c1bc31310ef/07b3db69-440e-491e-854c-bbfa18a7cff2 >>>>>>>>>>>> /cc65f671-3377-494a-a7d4-1d9f7c3ae46c/images/f3c8e7aa-6ef2-4 >>>>>>>>>>>> 2a7-93d4-e0a4df6dd2fa/2eb0b1ad-2606-44ef-9cd3-ae59610a504b >>>>>>>>>>>> Status: Connected >>>>>>>>>>>> Number of entries: 8 >>>>>>>>>>>> >>>>>>>>>>>> Brick 172.172.1.13:/gluster/brick3/data-hdd >>>>>>>>>>>> /cc65f671-3377-494a-a7d4-1d9f7c3ae46c/images/b1ea3f62-0f05-4 >>>>>>>>>>>> ded-8c82-9c91c90e0b61/d5d6bf5a-499f-431d-9013-5453db93ed32 >>>>>>>>>>>> /cc65f671-3377-494a-a7d4-1d9f7c3ae46c/images/8c8b5147-e9d6-4 >>>>>>>>>>>> 810-b45b-185e3ed65727/16f08231-93b0-489d-a2fd-687b6bf88eaa >>>>>>>>>>>> /cc65f671-3377-494a-a7d4-1d9f7c3ae46c/images/12924435-b9c2-4 >>>>>>>>>>>> aab-ba19-1c1bc31310ef/07b3db69-440e-491e-854c-bbfa18a7cff2 >>>>>>>>>>>> /cc65f671-3377-494a-a7d4-1d9f7c3ae46c/images/f3c8e7aa-6ef2-4 >>>>>>>>>>>> 2a7-93d4-e0a4df6dd2fa/2eb0b1ad-2606-44ef-9cd3-ae59610a504b >>>>>>>>>>>> /cc65f671-3377-494a-a7d4-1d9f7c3ae46c/images/647be733-f153-4 >>>>>>>>>>>> cdc-85bd-ba72544c2631/b453a300-0602-4be1-8310-8bd5abe00971 >>>>>>>>>>>> /cc65f671-3377-494a-a7d4-1d9f7c3ae46c/images/48d7ecb8-7ac5-4 >>>>>>>>>>>> 725-bca5-b3519681cf2f/0d6080b0-7018-4fa3-bb82-1dd9ef07d9b9 >>>>>>>>>>>> /cc65f671-3377-494a-a7d4-1d9f7c3ae46c/images/6da854d1-b6be-4 >>>>>>>>>>>> 46b-9bf0-90a0dbbea830/3c93bd1f-b7fa-4aa2-b445-6904e31839ba >>>>>>>>>>>> /cc65f671-3377-494a-a7d4-1d9f7c3ae46c/images/7f647567-d18c-4 >>>>>>>>>>>> 4f1-a58e-9b8865833acb/f9364470-9770-4bb1-a6b9-a54861849625 >>>>>>>>>>>> Status: Connected >>>>>>>>>>>> Number of entries: 8 >>>>>>>>>>>> >>>>>>>>>>>> --------- >>>>>>>>>>>> Its been in this state for a couple days now, and bandwidth >>>>>>>>>>>> monitoring shows no appreciable data moving. I've tried repeatedly >>>>>>>>>>>> commanding a full heal from all three clusters in the node. Its always the >>>>>>>>>>>> same files that need healing. >>>>>>>>>>>> >>>>>>>>>>>> When running gluster volume heal data-hdd statistics, I see >>>>>>>>>>>> sometimes different information, but always some number of "heal failed" >>>>>>>>>>>> entries. It shows 0 for split brain. >>>>>>>>>>>> >>>>>>>>>>>> I'm not quite sure what to do. I suspect it may be due to >>>>>>>>>>>> nodes 1 and 2 still being on the older ovirt/gluster release, but I'm >>>>>>>>>>>> afraid to upgrade and reboot them until I have a good gluster sync (don't >>>>>>>>>>>> need to create a split brain issue). How do I proceed with this? >>>>>>>>>>>> >>>>>>>>>>>> Second issue: I've been experiencing VERY POOR performance on >>>>>>>>>>>> most of my VMs. To the tune that logging into a windows 10 vm via remote >>>>>>>>>>>> desktop can take 5 minutes, launching quickbooks inside said vm can easily >>>>>>>>>>>> take 10 minutes. On some linux VMs, I get random messages like this: >>>>>>>>>>>> Message from syslogd@unifi at May 28 20:39:23 ... >>>>>>>>>>>> kernel:[6171996.308904] NMI watchdog: BUG: soft lockup - >>>>>>>>>>>> CPU#0 stuck for 22s! [mongod:14766] >>>>>>>>>>>> >>>>>>>>>>>> (the process and PID are often different) >>>>>>>>>>>> >>>>>>>>>>>> I'm not quite sure what to do about this either. My initial >>>>>>>>>>>> thought was upgrad everything to current and see if its still there, but I >>>>>>>>>>>> cannot move forward with that until my gluster is healed... >>>>>>>>>>>> >>>>>>>>>>>> Thanks! >>>>>>>>>>>> --Jim >>>>>>>>>>>> >>>>>>>>>>>> _______________________________________________ >>>>>>>>>>>> Users mailing list -- users(a)ovirt.org >>>>>>>>>>>> To unsubscribe send an email to users-leave(a)ovirt.org >>>>>>>>>>>> Privacy Statement: https://www.ovirt.org/site/privacy-policy/ >>>>>>>>>>>> oVirt Code of Conduct: https://www.ovirt.org/communit >>>>>>>>>>>> y/about/community-guidelines/ >>>>>>>>>>>> List Archives: https://lists.ovirt.org/archiv >>>>>>>>>>>> es/list/users(a)ovirt.org/message/3LEV6ZQ3JV2XLAL7NYBTXOYMYUOT >>>>>>>>>>>> IRQF/ >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>> >>>>>>>>> >>>>>>>> >>>>>>> _______________________________________________ >>>>>>> Users mailing list -- users(a)ovirt.org >>>>>>> To unsubscribe send an email to users-leave(a)ovirt.org >>>>>>> Privacy Statement: https://www.ovirt.org/site/privacy-policy/ >>>>>>> oVirt Code of Conduct: https://www.ovirt.org/communit >>>>>>> y/about/community-guidelines/ >>>>>>> List Archives: https://lists.ovirt.org/archiv >>>>>>> es/list/users(a)ovirt.org/message/ACO7RFSLBSRBAIONIC2HQ6Z24ZDES5MF/ >>>>>>> >>>>>> >>>>> >>>> >>> >> > _______________________________________________ > Users mailing list -- users(a)ovirt.org > To unsubscribe send an email to users-leave(a)ovirt.org > Privacy Statement: https://www.ovirt.org/site/privacy-policy/ > oVirt Code of Conduct: https://www.ovirt.org/community/about/community- > guidelines/ > List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/ > message/JKBSLSZFRMFGILXGZB4YAMJIJKEKNGMA/ >