[Thu Jul  5 16:40:20 2018] Lustre: 2031:0:(client.c:2114:ptlrpc_expire_one_request()) @@@ Request sent has timed out for slow reply: [sent 1530772809/real 1530772809]  req@ffff883511680300 x1605131627921648/t0(0) o38->lustre-MDT0000-mdc-ffff88351771f000@172.16.231.49@o2ib:12/10 lens 520/544 e 0 to 1 dl 1530772814 ref 1 fl Rpc:XN/0/ffffffff rc 0/-1
[Thu Jul  5 16:40:40 2018] Lustre: Mounted lustre-client
[Thu Jul  5 18:07:40 2018] Lustre: lustre-MDT0000-mdc-ffff88351771f000: Connection to lustre-MDT0000 (at 172.16.231.50@o2ib) was lost; in progress operations using this service will wait for recovery to complete
[Thu Jul  5 18:07:40 2018] Lustre: lustre-MDT0000-mdc-ffff88351771f000: Connection restored to 172.16.231.50@o2ib (at 172.16.231.50@o2ib)
[Thu Jul  5 18:07:40 2018] Lustre: lustre-MDT0000-mdc-ffff88351771f000: Connection to lustre-MDT0000 (at 172.16.231.50@o2ib) was lost; in progress operations using this service will wait for recovery to complete
[Thu Jul  5 18:07:40 2018] Lustre: Skipped 1844 previous similar messages
[Thu Jul  5 18:07:40 2018] Lustre: lustre-MDT0000-mdc-ffff88351771f000: Connection restored to 172.16.231.50@o2ib (at 172.16.231.50@o2ib)
[Thu Jul  5 18:07:40 2018] Lustre: Skipped 1844 previous similar messages
[Thu Jul  5 18:07:41 2018] Lustre: lustre-MDT0000-mdc-ffff88351771f000: Connection to lustre-MDT0000 (at 172.16.231.50@o2ib) was lost; in progress operations using this service will wait for recovery to complete
[Thu Jul  5 18:07:41 2018] Lustre: Skipped 4111 previous similar messages
[Thu Jul  5 18:07:41 2018] Lustre: lustre-MDT0000-mdc-ffff88351771f000: Connection restored to 172.16.231.50@o2ib (at 172.16.231.50@o2ib)
[Thu Jul  5 18:07:41 2018] Lustre: Skipped 4111 previous similar messages
[Thu Jul  5 18:07:43 2018] Lustre: lustre-MDT0000-mdc-ffff88351771f000: Connection to lustre-MDT0000 (at 172.16.231.50@o2ib) was lost; in progress operations using this service will wait for recovery to complete
[Thu Jul  5 18:07:43 2018] Lustre: Skipped 8641 previous similar messages
[Thu Jul  5 18:07:43 2018] Lustre: lustre-MDT0000-mdc-ffff88351771f000: Connection restored to 172.16.231.50@o2ib (at 172.16.231.50@o2ib)
[Thu Jul  5 18:07:43 2018] Lustre: Skipped 8641 previous similar messages
[Thu Jul  5 18:07:47 2018] Lustre: lustre-MDT0000-mdc-ffff88351771f000: Connection to lustre-MDT0000 (at 172.16.231.50@o2ib) was lost; in progress operations using this service will wait for recovery to complete
[Thu Jul  5 18:07:47 2018] Lustre: Skipped 17863 previous similar messages
[Thu Jul  5 18:07:47 2018] Lustre: lustre-MDT0000-mdc-ffff88351771f000: Connection restored to 172.16.231.50@o2ib (at 172.16.231.50@o2ib)
[Thu Jul  5 18:07:47 2018] Lustre: Skipped 17865 previous similar messages
[Thu Jul  5 18:07:55 2018] Lustre: lustre-MDT0000-mdc-ffff88351771f000: Connection to lustre-MDT0000 (at 172.16.231.50@o2ib) was lost; in progress operations using this service will wait for recovery to complete
[Thu Jul  5 18:07:55 2018] Lustre: Skipped 34594 previous similar messages
[Thu Jul  5 18:07:55 2018] Lustre: lustre-MDT0000-mdc-ffff88351771f000: Connection restored to 172.16.231.50@o2ib (at 172.16.231.50@o2ib)
[Thu Jul  5 18:07:55 2018] Lustre: Skipped 34595 previous similar messages
[Thu Jul  5 18:08:11 2018] Lustre: lustre-MDT0000-mdc-ffff88351771f000: Connection to lustre-MDT0000 (at 172.16.231.50@o2ib) was lost; in progress operations using this service will wait for recovery to complete
[Thu Jul  5 18:08:11 2018] Lustre: Skipped 68383 previous similar messages
[Thu Jul  5 18:08:11 2018] Lustre: lustre-MDT0000-mdc-ffff88351771f000: Connection restored to 172.16.231.50@o2ib (at 172.16.231.50@o2ib)
[Thu Jul  5 18:08:11 2018] Lustre: Skipped 68380 previous similar messages
[Thu Jul  5 18:08:43 2018] Lustre: lustre-MDT0000-mdc-ffff88351771f000: Connection to lustre-MDT0000 (at 172.16.231.50@o2ib) was lost; in progress operations using this service will wait for recovery to complete
[Thu Jul  5 18:08:43 2018] Lustre: Skipped 140104 previous similar messages
[Thu Jul  5 18:08:43 2018] Lustre: lustre-MDT0000-mdc-ffff88351771f000: Connection restored to 172.16.231.50@o2ib (at 172.16.231.50@o2ib)
[Thu Jul  5 18:08:43 2018] Lustre: Skipped 140105 previous similar messages
[Thu Jul  5 18:09:47 2018] Lustre: lustre-MDT0000-mdc-ffff88351771f000: Connection to lustre-MDT0000 (at 172.16.231.50@o2ib) was lost; in progress operations using this service will wait for recovery to complete
[Thu Jul  5 18:09:47 2018] Lustre: Skipped 285517 previous similar messages
[Thu Jul  5 18:09:47 2018] Lustre: lustre-MDT0000-mdc-ffff88351771f000: Connection restored to 172.16.231.50@o2ib (at 172.16.231.50@o2ib)
[Thu Jul  5 18:09:47 2018] Lustre: Skipped 285516 previous similar messages
[Thu Jul  5 18:11:55 2018] Lustre: lustre-MDT0000-mdc-ffff88351771f000: Connection to lustre-MDT0000 (at 172.16.231.50@o2ib) was lost; in progress operations using this service will wait for recovery to complete
[Thu Jul  5 18:11:55 2018] Lustre: Skipped 564160 previous similar messages
[Thu Jul  5 18:11:55 2018] Lustre: lustre-MDT0000-mdc-ffff88351771f000: Connection restored to 172.16.231.50@o2ib (at 172.16.231.50@o2ib)
[Thu Jul  5 18:11:55 2018] Lustre: Skipped 564160 previous similar messages
[Thu Jul  5 18:16:11 2018] Lustre: lustre-MDT0000-mdc-ffff88351771f000: Connection to lustre-MDT0000 (at 172.16.231.50@o2ib) was lost; in progress operations using this service will wait for recovery to complete
[Thu Jul  5 18:16:11 2018] Lustre: Skipped 1132334 previous similar messages
[Thu Jul  5 18:16:11 2018] Lustre: lustre-MDT0000-mdc-ffff88351771f000: Connection restored to 172.16.231.50@o2ib (at 172.16.231.50@o2ib)
[Thu Jul  5 18:16:11 2018] Lustre: Skipped 1132613 previous similar messages