>From ltop I can see that 2 osts have relatively small number of locks.
Under 200 oposed to 86000 on the others.
On Wed, Sep 11, 2013 at 11:46 AM, Nikolay Kvetsinski
<nkvecinski-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>wrote:
> Hello,
> we have a lot of client evictions. Here are the errors on the OSS:
>
> LustreError: 138-a: lustre0-OST0001: A client on nid 192.168.12.38@tcpwas
evicted due to a lock glimpse callback time out: rc -107
>
> On the MDS :
>
> LustreError: 138-a: lustre0-MDT0000: A client on nid 192.168.12.38@tcpwas
evicted due to a lock blocking callback time out: rc -107
>
> On the client :
>
> INFO: task ldlm_bl_01:2818 blocked for more than 120 seconds.
> "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
> ldlm_bl_01 D 0000000000000002 0 2818 2 0x00000080
> ffff88080460fd50 0000000000000046 0000000000000000 ffffffffa0e5a967
> 0000000100000000 0000000000000000 ffff88080460fcf0 ffffffffa0e59f22
> ffff88080460dab8 ffff88080460ffd8 000000000000fb88 ffff88080460dab8
> Call Trace:
> [<ffffffffa0e5a967>] ? cfs_hash_bd_lookup_intent+0x37/0x130 [libcfs]
> [<ffffffffa0e59f22>] ? cfs_hash_bd_add_locked+0x62/0x90 [libcfs]
> [<ffffffff8150f1ee>] __mutex_lock_slowpath+0x13e/0x180
> [<ffffffff8150f08b>] mutex_lock+0x2b/0x50
> [<ffffffffa0fc6ecf>] cl_lock_mutex_get+0x6f/0xd0 [obdclass]
> [<ffffffffa133695a>] osc_ldlm_blocking_ast+0x7a/0x350 [osc]
> [<ffffffffa10e4f00>] ldlm_handle_bl_callback+0x130/0x400 [ptlrpc]
> [<ffffffffa10e5451>] ldlm_bl_thread_main+0x281/0x3d0 [ptlrpc]
> [<ffffffff81063310>] ? default_wake_function+0x0/0x20
> [<ffffffffa10e51d0>] ? ldlm_bl_thread_main+0x0/0x3d0 [ptlrpc]
> [<ffffffff8100c0ca>] child_rip+0xa/0x20
> [<ffffffffa10e51d0>] ? ldlm_bl_thread_main+0x0/0x3d0 [ptlrpc]
> [<ffffffffa10e51d0>] ? ldlm_bl_thread_main+0x0/0x3d0 [ptlrpc]
> [<ffffffff8100c0c0>] ? child_rip+0x0/0x20
> INFO: task nautilus:3741 blocked for more than 120 seconds.
>
>
> Can you help me with somethig... just for start. Lustre 2.4 , OS - CentOS
> 6.4
>
> Cheers,
>
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