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https://issues.apache.org/jira/browse/HBASE-5883?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13268139#comment-13268139
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Jieshan Bean commented on HBASE-5883:
-------------------------------------
I agree with adding an addendum patch. I think we should unify the behavior to
handle the exceptions(I remember we found so many issues regarding on the
exception conversion. Everyone fixes it with his own version).
In the method of HBaseClient#setupConnection, we catches 2 types of exceptions:
SocketTimeoutException & IOException.
Before this patch, we also catches 2 types of exceptions but they were
SocketTimeoutException & ConnectionException.
I think the previous catching is better.
I will prepare the addendum patch today if no objection.
Thank you all.
> Backup master is going down due to connection refused exception
> ---------------------------------------------------------------
>
> Key: HBASE-5883
> URL: https://issues.apache.org/jira/browse/HBASE-5883
> Project: HBase
> Issue Type: Bug
> Components: master
> Affects Versions: 0.90.6, 0.92.1, 0.94.0
> Reporter: Gopinathan A
> Assignee: Jieshan Bean
> Fix For: 0.96.0, 0.94.1
>
> Attachments: HBASE-5883-90.patch, HBASE-5883-92.patch,
> HBASE-5883-94.patch, HBASE-5883-trunk.patch
>
>
> The active master node network was down for some time (This node contains
> Master,DN,ZK,RS). Here backup node got
> notification, and started to became active. Immedietly backup node got
> aborted with the below exception.
> {noformat}
> 2012-04-09 10:42:24,270 INFO org.apache.hadoop.hbase.master.SplitLogManager:
> finished splitting (more than or equal to) 861248320 bytes in 4 log files in
> [hdfs://192.168.47.205:9000/hbase/.logs/HOST-192-168-47-202,60020,1333715537172-splitting]
> in 26374ms
> 2012-04-09 10:42:24,316 FATAL org.apache.hadoop.hbase.master.HMaster: Master
> server abort: loaded coprocessors are: []
> 2012-04-09 10:42:24,333 FATAL org.apache.hadoop.hbase.master.HMaster:
> Unhandled exception. Starting shutdown.
> java.io.IOException: java.net.ConnectException: Connection refused
> at
> org.apache.hadoop.hbase.ipc.HBaseClient$Connection.setupIOstreams(HBaseClient.java:375)
> at
> org.apache.hadoop.hbase.ipc.HBaseClient.getConnection(HBaseClient.java:1045)
> at org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:897)
> at
> org.apache.hadoop.hbase.ipc.WritableRpcEngine$Invoker.invoke(WritableRpcEngine.java:150)
> at $Proxy13.getProtocolVersion(Unknown Source)
> at
> org.apache.hadoop.hbase.ipc.WritableRpcEngine.getProxy(WritableRpcEngine.java:183)
> at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:303)
> at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:280)
> at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:332)
> at org.apache.hadoop.hbase.ipc.HBaseRPC.waitForProxy(HBaseRPC.java:236)
> at
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getHRegionConnection(HConnectionManager.java:1276)
> at
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getHRegionConnection(HConnectionManager.java:1233)
> at
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getHRegionConnection(HConnectionManager.java:1220)
> at
> org.apache.hadoop.hbase.catalog.CatalogTracker.getCachedConnection(CatalogTracker.java:569)
> at
> org.apache.hadoop.hbase.catalog.CatalogTracker.getRootServerConnection(CatalogTracker.java:369)
> at
> org.apache.hadoop.hbase.catalog.CatalogTracker.waitForRootServerConnection(CatalogTracker.java:353)
> at
> org.apache.hadoop.hbase.catalog.CatalogTracker.verifyRootRegionLocation(CatalogTracker.java:660)
> at
> org.apache.hadoop.hbase.master.HMaster.assignRootAndMeta(HMaster.java:616)
> at
> org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:540)
> at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:363)
> at java.lang.Thread.run(Thread.java:662)
> Caused by: java.net.ConnectException: Connection refused
> at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:567)
> at
> org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
> at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:488)
> at
> org.apache.hadoop.hbase.ipc.HBaseClient$Connection.setupConnection(HBaseClient.java:328)
> at
> org.apache.hadoop.hbase.ipc.HBaseClient$Connection.setupIOstreams(HBaseClient.java:362)
> ... 20 more
> 2012-04-09 10:42:24,336 INFO org.apache.hadoop.hbase.master.HMaster: Aborting
> 2012-04-09 10:42:24,336 DEBUG org.apache.hadoop.hbase.master.HMaster:
> Stopping service threads
> {noformat}
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