zhangshilong created HDFS-7900:
----------------------------------
Summary: hbase keeps too many deleted file descriptor
Key: HDFS-7900
URL: https://issues.apache.org/jira/browse/HDFS-7900
Project: Hadoop HDFS
Issue Type: Bug
Components: hdfs-client
Affects Versions: 2.3.0
Environment: hadoop cdh5 2.3.0 hbase 0.98
Reporter: zhangshilong
Priority: Critical
I delete some hbase's files manually or use "rm -rf blk_xxxx" to delete the
blockfile directly, but hbase keeps the file descriptor very long time.
I found these file descriptor may be kept in shortcircuitcache replicaMap，
but could not find when the file descriptor will be removed. replicaMap has no
limits size for putting.
run： lsof -p pid |grep deleted
part of result：
lk_1102309377_28571078.meta (deleted)
java 8430 hbase 8537r REG 8,145 536870912 806553760
/search/hadoop08/data/current/BP-715213703-10.141.46.46-1418959337587/current/finalized/subdir61/blk_1102541663
(deleted)
java 8430 hbase 8540r REG 8,113 4194311 812434001
/search/hadoop06/data/current/BP-715213703-10.141.46.46-1418959337587/current/finalized/subdir62/subdir21/blk_1102524193_28785917.meta
(deleted)
java 8430 hbase 8541r REG 8,65 536870912 813718517
/search/hadoop03/data/current/BP-715213703-10.141.46.46-1418959337587/current/finalized/subdir31/subdir14/blk_1102523618
(deleted)
java 8430 hbase 8542r REG 8,65 4194311 813718518
/search/hadoop03/data/current/BP-715213703-10.141.46.46-1418959337587/current/finalized/subdir31/subdir14/blk_1102523618_28785342.meta
(deleted)
java 8430 hbase 8543r REG 8,193 536870912 1886733815
/search/hadoop12/data/current/BP-715213703-10.141.46.46-1418959337587/current/finalized/subdir20/subdir22/blk_1102533549
(deleted)
java 8430 hbase 8544r REG 8,65 4194311 814828988
/search/hadoop03/data/current/BP-715213703-10.141.46.46-1418959337587/current/finalized/subdir49/blk_1102676585_28938309.meta
(deleted)
java 8430 hbase 8545r REG 8,17 4194311 812962137
/search/hadoop10/data/current/BP-715213703-10.141.46.46-1418959337587/current/finalized/subdir53/blk_1102597493_28859217.meta
(deleted)
java 8430 hbase 8546r REG 8,97 4194311 810468992
/search/hadoop05/data/current/BP-715213703-10.141.46.46-1418959337587/current/finalized/subdir4/subdir46/blk_1102524567_28786291.meta
(deleted)
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
