Pankaj Kumar created HBASE-15109:
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Summary: Region server failed to start when
"fs.hdfs.impl.disable.cache" is set to true
Key: HBASE-15109
URL: https://issues.apache.org/jira/browse/HBASE-15109
Project: HBase
Issue Type: Bug
Components: regionserver
Affects Versions: 1.0.0
Reporter: Pankaj Kumar
Assignee: Pankaj Kumar
Priority: Critical
Region server failed to start during installing ShutdownHook when
"fs.hdfs.impl.disable.cache" is set to true in core-site.xml at HBase side.
{code}
2016-01-14 15:30:56,358 | FATAL | regionserver/ds2/192.168.152.230:21302 |
ABORTING region server ds2,21302,1452756654352: Unhandled: Failed suppression
of fs shutdown hook:
org.apache.hadoop.fs.FileSystem$Cache$ClientFinalizer@571527d6 |
org.apache.hadoop.hbase.regionserver.HRegionServer.abort(HRegionServer.java:2054)
java.lang.RuntimeException: Failed suppression of fs shutdown hook:
org.apache.hadoop.fs.FileSystem$Cache$ClientFinalizer@571527d6
at
org.apache.hadoop.hbase.regionserver.ShutdownHook.suppressHdfsShutdownHook(ShutdownHook.java:204)
at
org.apache.hadoop.hbase.regionserver.ShutdownHook.install(ShutdownHook.java:84)
at
org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:893)
at java.lang.Thread.run(Thread.java:745)
{code}
During installation, first time it will try to suppress the HDFS shutdownhook
by removing the hdfsclientfinalizer from HDFS. Since fs.hdfs.impl.disable.cache
is enabled, so removal will be unsuccessful from HDFS (FS is not cached) and
RuntimeException will be thrown with "Failed suppression of fs shutdown hook"
message.
In ShutdownHook,
{code}
if (!fsShutdownHooks.containsKey(hdfsClientFinalizer) &&
!ShutdownHookManager.deleteShutdownHook(hdfsClientFinalizer)) {
throw new RuntimeException("Failed suppression of fs shutdown hook: " +
hdfsClientFinalizer);
}
{code}
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