we use hbase0.98.10, see the exception as flows:
Caused by: java.lang.reflect.UndeclaredThrowableException
at com.sun.proxy.$Proxy6.getHTableDescriptors(Unknown Source)
at
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getHTableDescriptor(HConnectionManager.java:1835)
at org.apache.hadoop.hbase.client.HTable.getTableDescriptor(HTable.java:403)
at
org.apache.hadoop.hbase.mapreduce.HFileOutputFormat.configureCompression(HFileOutputFormat.java:436)
at
org.apache.hadoop.hbase.mapreduce.HFileOutputFormat.configureIncrementalLoad(HFileOutputFormat.java:368)
at
com.fiberhome.bigdata.bulkload.BulkLoadJobExecutor.initBulkLoadJob(BulkLoadJobExecutor.java:101)
at
com.fiberhome.nebula.datacenter.bulkload.app.GroupMRTask.call(GroupMRTask.java:92)
Caused by: java.io.IOException: Call to hm:60000 failed on local exception:
org.apache.hadoop.hbase.ipc.HBaseClient$CallTimeoutException: Call id=25409697,
waitTime=68690, rpcTimetout=60000
at org.apache.hadoop.hbase.ipc.HBaseClient.wrapException(HBaseClient.java:1056)
at org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:1025)
at
org.apache.hadoop.hbase.ipc.WritableRpcEngine$Invoker.invoke(WritableRpcEngine.java:150)
... 15 more
Caused by: org.apache.hadoop.hbase.ipc.HBaseClient$CallTimeoutException: Call
id=25409697, waitTime=68690, rpcTimetout=60000
at
org.apache.hadoop.hbase.ipc.HBaseClient$Connection.cleanupCalls(HBaseClient.java:786)
at
org.apache.hadoop.hbase.ipc.HBaseClient$Connection.receiveResponse(HBaseClient.java:715)
at org.apache.hadoop.hbase.ipc.HBaseClient$Connection.run(HBaseClient.java:606)
the log of master at the same time as flows:
2015-09-07 01:37:36,471 INFO org.apache.hadoop.hbase.master.LoadBalancer:
Skipping load balancing because balanced cluster; servers=10 regions=169
average=16.9 mostloaded=17 leastloaded=16
2015-09-07 01:37:36,471 INFO org.apache.hadoop.hbase.master.LoadBalancer:
Skipping load balancing because balanced cluster; servers=10 regions=2
average=0.2 mostloaded=1 leastloaded=0
...
2015-09-07 01:37:49,814 DEBUG org.apache.hadoop.hbase.client.ClientScanner:
Creating scanner over .META. starting at key ''
2015-09-07 01:37:49,815 DEBUG org.apache.hadoop.hbase.client.ClientScanner:
Advancing internal scanner to startKey at ''
2015-09-07 01:37:53,325 DEBUG org.apache.hadoop.hbase.client.ClientScanner:
Finished with scanning at {NAME => '.META.,,1', STARTKEY => '', ENDKEY => '',
ENCODED => 1028785192,}
2015-09-07 01:37:53,378 DEBUG org.apache.hadoop.hbase.master.CatalogJanitor:
Scanned 49295 catalog row(s) and gc'd 0 unreferenced parent region(s)
it seems master just does its periodic ordinary works.
so, I am wondering why timeout happens
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