the client glusterfs gdb info， main thread id is 70800。 In the top output，70800 thread time 1263:30，70810 thread time 1321:10，other thread time too small。 (gdb) thread apply all bt Thread 9 (Thread 0x7fc21acaf700 (LWP 70801)): #0 0x00007fc21cc0c535 in sigwait () from /lib64/libpthread.so.0 #1 0x000000000040539b in glusterfs_sigwaiter (arg=<value optimized out>) at glusterfsd.c:1653 #2 0x00007fc21cc04a51 in start_thread () from /lib64/libpthread.so.0 #3 0x00007fc21c56e93d in clone () from /lib64/libc.so.6 Thread 8 (Thread 0x7fc21a2ae700 (LWP 70802)): #0 0x00007fc21cc08a0e in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fc21ded02bf in syncenv_task (proc=0x121ee60) at syncop.c:493 #2 0x00007fc21ded6300 in syncenv_processor (thdata=0x121ee60) at syncop.c:571 #3 0x00007fc21cc04a51 in start_thread () from /lib64/libpthread.so.0 #4 0x00007fc21c56e93d in clone () from /lib64/libc.so.6 Thread 7 (Thread 0x7fc2198ad700 (LWP 70803)): #0 0x00007fc21cc08a0e in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fc21ded02bf in syncenv_task (proc=0x121f220) at syncop.c:493 #2 0x00007fc21ded6300 in syncenv_processor (thdata=0x121f220) at syncop.c:571 #3 0x00007fc21cc04a51 in start_thread () from /lib64/libpthread.so.0 #4 0x00007fc21c56e93d in clone () from /lib64/libc.so.6 Thread 6 (Thread 0x7fc21767d700 (LWP 70805)): #0 0x00007fc21cc0bfbd in nanosleep () from /lib64/libpthread.so.0 #1 0x00007fc21deb16bc in gf_timer_proc (ctx=0x11f2010) at timer.c:170 #2 0x00007fc21cc04a51 in start_thread () from /lib64/libpthread.so.0 #3 0x00007fc21c56e93d in clone () from /lib64/libc.so.6 Thread 5 (Thread 0x7fc20fb1e700 (LWP 70810)): #0 0x00007fc21c566987 in readv () from /lib64/libc.so.6 #1 0x00007fc21accbc55 in fuse_thread_proc (data=0x120f450) at fuse-bridge.c:4752 #2 0x00007fc21cc04a51 in start_thread () from /lib64/libpthread.so.0 #3 0x00007fc21c56e93d in clone () from /lib64/libc.so.6 时间最多 Thread 4 (Thread 0x7fc20f11d700 (LWP 70811)): 少点 #0 0x00007fc21cc0b7dd in read () from /lib64/libpthread.so.0 #1 0x00007fc21acc0e73 in read (data=<value optimized out>) at /usr/include/bits/unistd.h:45 #2 notify_kernel_loop (data=<value optimized out>) at fuse-bridge.c:3786 #3 0x00007fc21cc04a51 in start_thread () from /lib64/libpthread.so.0 #4 0x00007fc21c56e93d in clone () from /lib64/libc.so.6 Thread 3 (Thread 0x7fc1b16fe700 (LWP 206224)): ---Type <return> to continue, or q <return> to quit--- #0 0x00007fc21cc08a0e in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fc20e515e60 in iot_worker (data=0x19eeda0) at io-threads.c:157 #2 0x00007fc21cc04a51 in start_thread () from /lib64/libpthread.so.0 #3 0x00007fc21c56e93d in clone () from /lib64/libc.so.6 Thread 2 (Thread 0x7fc1b0bfb700 (LWP 214361)): #0 0x00007fc21cc08a0e in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fc20e515e60 in iot_worker (data=0x19eeda0) at io-threads.c:157 #2 0x00007fc21cc04a51 in start_thread () from /lib64/libpthread.so.0 #3 0x00007fc21c56e93d in clone () from /lib64/libc.so.6 Thread 1 (Thread 0x7fc21e31e700 (LWP 70800)): #0 0x00007fc21c56ef33 in epoll_wait () from /lib64/libc.so.6 #1 0x00007fc21deea3e7 in event_dispatch_epoll (event_pool=0x120dec0) at event-epoll.c:428 #2 0x00000000004075e4 in main (argc=4, argv=0x7fff3dc93698) at glusterfsd.c:1983 On Thu, Jan 28, 2016 at 5:29 PM, baul jianguo <roidinev@xxxxxxxxx> wrote: > http://pastebin.centos.org/38941/ > client statedump,only the pid 27419,168030,208655 hang，you can search > this pid in the statedump file。 > > On Wed, Jan 27, 2016 at 4:35 PM, Pranith Kumar Karampuri > <pkarampu@xxxxxxxxxx> wrote: >> Hi, >> If the hang appears on enabling client side io-threads then it could >> be because of some race that is seen when io-threads is enabled on the >> client side. 2 things will help us debug this issue: >> 1) thread apply all bt inside gdb (with debuginfo rpms/debs installed ) >> 2) Complete statedump of the mount at two intervals preferably 10 seconds >> apart. It becomes difficult to find out which ones are stuck vs the ones >> that are on-going when we have just one statedump. If we have two, we can >> find which frames are common in both of the statedumps and then take a >> closer look there. >> >> Feel free to ping me on #gluster-dev, nick: pranithk if you have the process >> hung in that state and you guys don't mind me do a live debugging with you >> guys. This option is the best of the lot! >> >> Thanks a lot baul, Oleksandr for the debugging so far! >> >> Pranith >> >> >> On 01/25/2016 01:03 PM, baul jianguo wrote: >>> >>> 3.5.7 also hangs.only the flush op hung. Yes,off the >>> performance.client-io-threads ,no hang. >>> >>> The hang does not relate the client kernel version. >>> >>> One client statdump about flush op,any abnormal? >>> >>> [global.callpool.stack.12] >>> >>> uid=0 >>> >>> gid=0 >>> >>> pid=14432 >>> >>> unique=16336007098 >>> >>> lk-owner=77cb199aa36f3641 >>> >>> op=FLUSH >>> >>> type=1 >>> >>> cnt=6 >>> >>> >>> >>> [global.callpool.stack.12.frame.1] >>> >>> ref_count=1 >>> >>> translator=fuse >>> >>> complete=0 >>> >>> >>> >>> [global.callpool.stack.12.frame.2] >>> >>> ref_count=0 >>> >>> translator=datavolume-write-behind >>> >>> complete=0 >>> >>> parent=datavolume-read-ahead >>> >>> wind_from=ra_flush >>> >>> wind_to=FIRST_CHILD (this)->fops->flush >>> >>> unwind_to=ra_flush_cbk >>> >>> >>> >>> [global.callpool.stack.12.frame.3] >>> >>> ref_count=1 >>> >>> translator=datavolume-read-ahead >>> >>> complete=0 >>> >>> parent=datavolume-open-behind >>> >>> wind_from=default_flush_resume >>> >>> wind_to=FIRST_CHILD(this)->fops->flush >>> >>> unwind_to=default_flush_cbk >>> >>> >>> >>> [global.callpool.stack.12.frame.4] >>> >>> ref_count=1 >>> >>> translator=datavolume-open-behind >>> >>> complete=0 >>> >>> parent=datavolume-io-threads >>> >>> wind_from=iot_flush_wrapper >>> >>> wind_to=FIRST_CHILD(this)->fops->flush >>> >>> unwind_to=iot_flush_cbk >>> >>> >>> >>> [global.callpool.stack.12.frame.5] >>> >>> ref_count=1 >>> >>> translator=datavolume-io-threads >>> >>> complete=0 >>> >>> parent=datavolume >>> >>> wind_from=io_stats_flush >>> >>> wind_to=FIRST_CHILD(this)->fops->flush >>> >>> unwind_to=io_stats_flush_cbk >>> >>> >>> >>> [global.callpool.stack.12.frame.6] >>> >>> ref_count=1 >>> >>> translator=datavolume >>> >>> complete=0 >>> >>> parent=fuse >>> >>> wind_from=fuse_flush_resume >>> >>> wind_to=xl->fops->flush >>> >>> unwind_to=fuse_err_cbk >>> >>> >>> >>> On Sun, Jan 24, 2016 at 5:35 AM, Oleksandr Natalenko >>> <oleksandr@xxxxxxxxxxxxxx> wrote: >>>> >>>> With "performance.client-io-threads" set to "off" no hangs occurred in 3 >>>> rsync/rm rounds. Could that be some fuse-bridge lock race? Will bring >>>> that >>>> option to "on" back again and try to get full statedump. >>>> >>>> On четвер, 21 січня 2016 р. 14:54:47 EET Raghavendra G wrote: >>>>> >>>>> On Thu, Jan 21, 2016 at 10:49 AM, Pranith Kumar Karampuri < >>>>> >>>>> pkarampu@xxxxxxxxxx> wrote: >>>>>> >>>>>> On 01/18/2016 02:28 PM, Oleksandr Natalenko wrote: >>>>>>> >>>>>>> XFS. Server side works OK, I'm able to mount volume again. Brick is >>>>>>> 30% >>>>>>> full. >>>>>> >>>>>> Oleksandr, >>>>>> >>>>>> Will it be possible to get the statedump of the client, bricks >>>>>> >>>>>> output next time it happens? >>>>>> >>>>>> >>>>>> https://github.com/gluster/glusterfs/blob/master/doc/debugging/statedump.m >>>>>> d#how-to-generate-statedump >>>>> >>>>> We also need to dump inode information. To do that you've to add >>>>> "all=yes" >>>>> to /var/run/gluster/glusterdump.options before you issue commands to get >>>>> statedump. >>>>> >>>>>> Pranith >>>>>> >>>>>>> On понеділок, 18 січня 2016 р. 15:07:18 EET baul jianguo wrote: >>>>>>>> >>>>>>>> What is your brick file system? and the glusterfsd process and all >>>>>>>> thread status? >>>>>>>> I met same issue when client app such as rsync stay in D status,and >>>>>>>> the brick process and relate thread also be in the D status. >>>>>>>> And the brick dev disk util is 100% . >>>>>>>> >>>>>>>> On Sun, Jan 17, 2016 at 6:13 AM, Oleksandr Natalenko >>>>>>>> >>>>>>>> <oleksandr@xxxxxxxxxxxxxx> wrote: >>>>>>>>> >>>>>>>>> Wrong assumption, rsync hung again. >>>>>>>>> >>>>>>>>> On субота, 16 січня 2016 р. 22:53:04 EET Oleksandr Natalenko wrote: >>>>>>>>>> >>>>>>>>>> One possible reason: >>>>>>>>>> >>>>>>>>>> cluster.lookup-optimize: on >>>>>>>>>> cluster.readdir-optimize: on >>>>>>>>>> >>>>>>>>>> I've disabled both optimizations, and at least as of now rsync >>>>>>>>>> still >>>>>>>>>> does >>>>>>>>>> its job with no issues. I would like to find out what option causes >>>>>>>>>> such >>>>>>>>>> a >>>>>>>>>> behavior and why. Will test more. >>>>>>>>>> >>>>>>>>>> On пʼятниця, 15 січня 2016 р. 16:09:51 EET Oleksandr Natalenko >>>>>>>>>> wrote: >>>>>>>>>>> >>>>>>>>>>> Another observation: if rsyncing is resumed after hang, rsync >>>>>>>>>>> itself >>>>>>>>>>> hangs a lot faster because it does stat of already copied files. >>>>>>>>>>> So, >>>>>>>>>>> the >>>>>>>>>>> reason may be not writing itself, but massive stat on GlusterFS >>>>>>>>>>> volume >>>>>>>>>>> as well. >>>>>>>>>>> >>>>>>>>>>> 15.01.2016 09:40, Oleksandr Natalenko написав: >>>>>>>>>>>> >>>>>>>>>>>> While doing rsync over millions of files from ordinary partition >>>>>>>>>>>> to >>>>>>>>>>>> GlusterFS volume, just after approx. first 2 million rsync hang >>>>>>>>>>>> happens, and the following info appears in dmesg: >>>>>>>>>>>> >>>>>>>>>>>> === >>>>>>>>>>>> [17075038.924481] INFO: task rsync:10310 blocked for more than >>>>>>>>>>>> 120 >>>>>>>>>>>> seconds. >>>>>>>>>>>> [17075038.931948] "echo 0 > >>>>>>>>>>>> /proc/sys/kernel/hung_task_timeout_secs" >>>>>>>>>>>> disables this message. >>>>>>>>>>>> [17075038.940748] rsync D ffff88207fc13680 0 10310 >>>>>>>>>>>> 10309 0x00000080 >>>>>>>>>>>> [17075038.940752] ffff8809c578be18 0000000000000086 >>>>>>>>>>>> ffff8809c578bfd8 >>>>>>>>>>>> 0000000000013680 >>>>>>>>>>>> [17075038.940756] ffff8809c578bfd8 0000000000013680 >>>>>>>>>>>> ffff880310cbe660 >>>>>>>>>>>> ffff881159d16a30 >>>>>>>>>>>> [17075038.940759] ffff881e3aa25800 ffff8809c578be48 >>>>>>>>>>>> ffff881159d16b10 >>>>>>>>>>>> ffff88087d553980 >>>>>>>>>>>> [17075038.940762] Call Trace: >>>>>>>>>>>> [17075038.940770] [<ffffffff8160a1d9>] schedule+0x29/0x70 >>>>>>>>>>>> [17075038.940797] [<ffffffffa023a53d>] >>>>>>>>>>>> __fuse_request_send+0x13d/0x2c0 >>>>>>>>>>>> [fuse] >>>>>>>>>>>> [17075038.940801] [<ffffffffa023db30>] ? >>>>>>>>>>>> fuse_get_req_nofail_nopages+0xc0/0x1e0 [fuse] >>>>>>>>>>>> [17075038.940805] [<ffffffff81098350>] ? wake_up_bit+0x30/0x30 >>>>>>>>>>>> [17075038.940809] [<ffffffffa023a6d2>] >>>>>>>>>>>> fuse_request_send+0x12/0x20 >>>>>>>>>>>> [fuse] >>>>>>>>>>>> [17075038.940813] [<ffffffffa024382f>] fuse_flush+0xff/0x150 >>>>>>>>>>>> [fuse] >>>>>>>>>>>> [17075038.940817] [<ffffffff811c45c4>] filp_close+0x34/0x80 >>>>>>>>>>>> [17075038.940821] [<ffffffff811e4ed8>] __close_fd+0x78/0xa0 >>>>>>>>>>>> [17075038.940824] [<ffffffff811c6103>] SyS_close+0x23/0x50 >>>>>>>>>>>> [17075038.940828] [<ffffffff81614de9>] >>>>>>>>>>>> system_call_fastpath+0x16/0x1b >>>>>>>>>>>> === >>>>>>>>>>>> >>>>>>>>>>>> rsync blocks in D state, and to kill it, I have to do umount >>>>>>>>>>>> --lazy >>>>>>>>>>>> on >>>>>>>>>>>> GlusterFS mountpoint, and then kill corresponding client >>>>>>>>>>>> glusterfs >>>>>>>>>>>> process. Then rsync exits. >>>>>>>>>>>> >>>>>>>>>>>> Here is GlusterFS volume info: >>>>>>>>>>>> >>>>>>>>>>>> === >>>>>>>>>>>> Volume Name: asterisk_records >>>>>>>>>>>> Type: Distributed-Replicate >>>>>>>>>>>> Volume ID: dc1fe561-fa3a-4f2e-8330-ec7e52c75ba4 >>>>>>>>>>>> Status: Started >>>>>>>>>>>> Number of Bricks: 3 x 2 = 6 >>>>>>>>>>>> Transport-type: tcp >>>>>>>>>>>> Bricks: >>>>>>>>>>>> Brick1: >>>>>>>>>>>> >>>>>>>>>>>> server1:/bricks/10_megaraid_0_3_9_x_0_4_3_hdd_r1_nolvm_hdd_storage_0 >>>>>>>>>>>> 1 >>>>>>>>>>>> /as >>>>>>>>>>>> te >>>>>>>>>>>> risk/records Brick2: >>>>>>>>>>>> >>>>>>>>>>>> server2:/bricks/10_megaraid_8_5_14_x_8_6_16_hdd_r1_nolvm_hdd_storage >>>>>>>>>>>> _ >>>>>>>>>>>> 01/ >>>>>>>>>>>> as >>>>>>>>>>>> terisk/records Brick3: >>>>>>>>>>>> >>>>>>>>>>>> server1:/bricks/11_megaraid_0_5_4_x_0_6_5_hdd_r1_nolvm_hdd_storage_0 >>>>>>>>>>>> 2 >>>>>>>>>>>> /as >>>>>>>>>>>> te >>>>>>>>>>>> risk/records Brick4: >>>>>>>>>>>> >>>>>>>>>>>> server2:/bricks/11_megaraid_8_7_15_x_8_8_20_hdd_r1_nolvm_hdd_storage >>>>>>>>>>>> _ >>>>>>>>>>>> 02/ >>>>>>>>>>>> as >>>>>>>>>>>> terisk/records Brick5: >>>>>>>>>>>> >>>>>>>>>>>> server1:/bricks/12_megaraid_0_7_6_x_0_13_14_hdd_r1_nolvm_hdd_storage >>>>>>>>>>>> _ >>>>>>>>>>>> 03/ >>>>>>>>>>>> as >>>>>>>>>>>> terisk/records Brick6: >>>>>>>>>>>> >>>>>>>>>>>> server2:/bricks/12_megaraid_8_9_19_x_8_13_24_hdd_r1_nolvm_hdd_storag >>>>>>>>>>>> e >>>>>>>>>>>> _03 >>>>>>>>>>>> /a >>>>>>>>>>>> sterisk/records Options Reconfigured: >>>>>>>>>>>> cluster.lookup-optimize: on >>>>>>>>>>>> cluster.readdir-optimize: on >>>>>>>>>>>> client.event-threads: 2 >>>>>>>>>>>> network.inode-lru-limit: 4096 >>>>>>>>>>>> server.event-threads: 4 >>>>>>>>>>>> performance.client-io-threads: on >>>>>>>>>>>> storage.linux-aio: on >>>>>>>>>>>> performance.write-behind-window-size: 4194304 >>>>>>>>>>>> performance.stat-prefetch: on >>>>>>>>>>>> performance.quick-read: on >>>>>>>>>>>> performance.read-ahead: on >>>>>>>>>>>> performance.flush-behind: on >>>>>>>>>>>> performance.write-behind: on >>>>>>>>>>>> performance.io-thread-count: 2 >>>>>>>>>>>> performance.cache-max-file-size: 1048576 >>>>>>>>>>>> performance.cache-size: 33554432 >>>>>>>>>>>> features.cache-invalidation: on >>>>>>>>>>>> performance.readdir-ahead: on >>>>>>>>>>>> === >>>>>>>>>>>> >>>>>>>>>>>> The issue reproduces each time I rsync such an amount of files. >>>>>>>>>>>> >>>>>>>>>>>> How could I debug this issue better? >>>>>>>>>>>> _______________________________________________ >>>>>>>>>>>> Gluster-users mailing list >>>>>>>>>>>> Gluster-users@xxxxxxxxxxx >>>>>>>>>>>> http://www.gluster.org/mailman/listinfo/gluster-users >>>>>>>>>>> >>>>>>>>>>> _______________________________________________ >>>>>>>>>>> Gluster-devel mailing list >>>>>>>>>>> Gluster-devel@xxxxxxxxxxx >>>>>>>>>>> http://www.gluster.org/mailman/listinfo/gluster-devel >>>>>>>>>> >>>>>>>>>> _______________________________________________ >>>>>>>>>> Gluster-devel mailing list >>>>>>>>>> Gluster-devel@xxxxxxxxxxx >>>>>>>>>> http://www.gluster.org/mailman/listinfo/gluster-devel >>>>>>>>> >>>>>>>>> _______________________________________________ >>>>>>>>> Gluster-devel mailing list >>>>>>>>> Gluster-devel@xxxxxxxxxxx >>>>>>>>> http://www.gluster.org/mailman/listinfo/gluster-devel >>>>>>> >>>>>>> _______________________________________________ >>>>>>> Gluster-users mailing list >>>>>>> Gluster-users@xxxxxxxxxxx >>>>>>> http://www.gluster.org/mailman/listinfo/gluster-users >>>>>> >>>>>> _______________________________________________ >>>>>> Gluster-devel mailing list >>>>>> Gluster-devel@xxxxxxxxxxx >>>>>> http://www.gluster.org/mailman/listinfo/gluster-devel >>>> >>>> >> _______________________________________________ Gluster-users mailing list Gluster-users@xxxxxxxxxxx http://www.gluster.org/mailman/listinfo/gluster-users
