<div dir="ltr">Hello,<div>we have a lot of client evictions. Here are the errors on the OSS:</div><div><br></div><div>LustreError: 138-a: lustre0-OST0001: A client on nid 192.168.12.38@tcp was evicted due to a lock glimpse callback time out: rc -107<br>
</div><div><br></div><div>On the MDS :</div><div><br></div><div>LustreError: 138-a: lustre0-MDT0000: A client on nid 192.168.12.38@tcp was evicted due to a lock blocking callback time out: rc -107<br></div><div><br></div>
<div>On the client :</div><div><br></div><div><div>INFO: task ldlm_bl_01:2818 blocked for more than 120 seconds.</div><div>"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.</div><div>ldlm_bl_01 D 0000000000000002 0 2818 2 0x00000080</div>
<div>ffff88080460fd50 0000000000000046 0000000000000000 ffffffffa0e5a967</div><div>0000000100000000 0000000000000000 ffff88080460fcf0 ffffffffa0e59f22</div><div>ffff88080460dab8 ffff88080460ffd8 000000000000fb88 ffff88080460dab8</div>
<div>Call Trace:</div><div>[<ffffffffa0e5a967>] ? cfs_hash_bd_lookup_intent+0x37/0x130 [libcfs]</div><div>[<ffffffffa0e59f22>] ? cfs_hash_bd_add_locked+0x62/0x90 [libcfs]</div><div>[<ffffffff8150f1ee>] __mutex_lock_slowpath+0x13e/0x180</div>
<div>[<ffffffff8150f08b>] mutex_lock+0x2b/0x50</div><div>[<ffffffffa0fc6ecf>] cl_lock_mutex_get+0x6f/0xd0 [obdclass]</div><div>[<ffffffffa133695a>] osc_ldlm_blocking_ast+0x7a/0x350 [osc]</div><div>[<ffffffffa10e4f00>] ldlm_handle_bl_callback+0x130/0x400 [ptlrpc]</div>
<div>[<ffffffffa10e5451>] ldlm_bl_thread_main+0x281/0x3d0 [ptlrpc]</div><div>[<ffffffff81063310>] ? default_wake_function+0x0/0x20</div><div>[<ffffffffa10e51d0>] ? ldlm_bl_thread_main+0x0/0x3d0 [ptlrpc]</div>
<div>[<ffffffff8100c0ca>] child_rip+0xa/0x20</div><div>[<ffffffffa10e51d0>] ? ldlm_bl_thread_main+0x0/0x3d0 [ptlrpc]</div><div>[<ffffffffa10e51d0>] ? ldlm_bl_thread_main+0x0/0x3d0 [ptlrpc]</div><div>[<ffffffff8100c0c0>] ? child_rip+0x0/0x20</div>
<div>INFO: task nautilus:3741 blocked for more than 120 seconds.</div></div><div><br></div><div><br></div><div>Can you help me with somethig... just for start. Lustre 2.4 , OS - CentOS 6.4</div><div><br></div><div>Cheers,</div>
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