HanRyong,Jung created HBASE-18454:
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Summary: Hbase Do not close file descriptor when using shortcircuit
Key: HBASE-18454
URL: https://issues.apache.org/jira/browse/HBASE-18454
Project: HBase
Issue Type: Bug
Components: regionserver
Affects Versions: 1.2.6
Environment: HDFS 2.7.3, HBASE 1.2.6, centOS 6.8
Reporter: HanRyong,Jung
I am a user using HDFS 2.7.3, HBASE 1.2.6, centOS 6.8.
The regionserver uses 11 hard disks(jbod) and uses the hbase short circuit.
At this time, when one disk fails in HDFS, I found a phenomenon that I did a
hotswap but did not close file descriptor in hbase.
And the fd path on the umount disk is changed to an incorrect path.
If I check /proc/regionserver_pid/fd, if I used /data1/volumn and umounted
data1, the path changed to /volumn.
And many file descriptors used in shortcircuit are in the delete state.
example )
ls -al /proc/regionserver_pid/fd
lr-x------ 1 dragonboy dragonboy 64 2017-07-26 20:54 946 ->
/data8/volumn/hdfs/datanode/current/BP-199986352-10.114.243.73-1490077615453/current/finalized/subdir111/subdir21/blk_1215239490
(deleted)
lr-x------ 1 dragonboy dragonboy 64 2017-07-26 20:54 947 ->
/data8/volumn/hdfs/datanode/current/BP-199986352-10.114.243.73-1490077615453/current/finalized/subdir111/subdir21/blk_1215239490_141511919.meta
(deleted)
lr-x------ 1 dragonboy dragonboy 64 2017-07-26 20:54 948 ->
/data7/volumn/hdfs/datanode/current/BP-199986352-10.114.243.73-1490077615453/current/finalized/subdir111/subdir27/blk_1215241080
(deleted)
lr-x------ 1 dragonboy dragonboy 64 2017-07-26 20:54 949 ->
/data7/volumn/hdfs/datanode/current/BP-199986352-10.114.243.73-1490077615453/current/finalized/subdir111/subdir27/blk_1215241080_141513509.meta
(deleted)
lr-x------ 1 dragonboy dragonboy 64 2017-07-26 20:54 902 ->
/volumn/hdfs/datanode/current/BP-199986352-10.114.243.73-1490077615453/current/finalized/subdir244/subdir160/blk_1257545757
(deleted)
when data4 fails, execute fuser)
/sbin/fuser -cu data4
Cannot stat file /proc/regionserver_pid/fd/1275: input/output error
Cannot stat file /proc/regionserver_pid/fd/1282: input/output error
Cannot stat file /proc/regionserver_pid/fd/1283: input/output error
Cannot stat file /proc/regionserver_pid/fd/1297: input/output error
Cannot stat file /proc/regionserver_pid/fd/1298: input/output error
Cannot stat file /proc/regionserver_pid/fd/1306: input/output error
Cannot stat file /proc/regionserver_pid/fd/1335: input/output error
Cannot stat file /proc/regionserver_pid/fd/1336: input/output error
Cannot stat file /proc/regionserver_pid/fd/1343: input/output error
Cannot stat file /proc/regionserver_pid/fd/1344: input/output error
Cannot stat file /proc/regionserver_pid/fd/1381: input/output error
Cannot stat file /proc/regionserver_pid/fd/1382: input/output error
Cannot stat file /proc/regionserver_pid/fd/1383: input/output error
Cannot stat file /proc/regionserver_pid/fd/1384: input/output error
Cannot stat file /proc/regionserver_pid/fd/1394: input/output error
Cannot stat file /proc/regionserver_pid/fd/1395: input/output error
Cannot stat file /proc/regionserver_pid/fd/1410: input/output error
Cannot stat file /proc/regionserver_pid/fd/1430: input/output error
Cannot stat file /proc/regionserver_pid/fd/1477: input/output error
Cannot stat file /proc/regionserver_pid/fd/1672: input/output error
Cannot stat file /proc/regionserver_pid/fd/1673: input/output error
Cannot stat file /proc/regionserver_pid/fd/2006: input/output error
Cannot stat file /proc/regionserver_pid/fd/2021: input/output error
Cannot stat file /proc/regionserver_pid/fd/2083: input/output error
Cannot stat file /proc/regionserver_pid/fd/2309: input/output error
Cannot stat file /proc/regionserver_pid/fd/2416: input/output error
Cannot stat file /proc/regionserver_pid/fd/2428: input/output error
Cannot stat file /proc/regionserver_pid/fd/2540: input/output error
Cannot stat file /proc/regionserver_pid/fd/2555: input/output error
Cannot stat file /proc/regionserver_pid/fd/2621: input/output error
Cannot stat file /proc/regionserver_pid/fd/2624: input/output error
Cannot stat file /proc/regionserver_pid/fd/2756: input/output error
Cannot stat file /proc/regionserver_pid/fd/2803: input/output error
Cannot stat file /proc/regionserver_pid/fd/2927: input/output error
Cannot stat file /proc/regionserver_pid/fd/3456: input/output error
Cannot stat file /proc/regionserver_pid/fd/3534: input/output error
Cannot stat file /proc/regionserver_pid/fd/3814: input/output error
Cannot stat file /proc/regionserver_pid/fd/3891: input/output error
Cannot stat file /proc/regionserver_pid/fd/4034: input/output error
Cannot stat file /proc/regionserver_pid/fd/4337: input/output error
Cannot stat file /proc/regionserver_pid/fd/5272: input/output error
Cannot stat file /proc/regionserver_pid/fd/5864: input/output error
Cannot stat file /proc/regionserver_pid/fd/7419: input/output error
Cannot stat file /proc/regionserver_pid/fd/7422: input/output error
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