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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-8667) Master and Regionserver not able to communicate if both bound to different network interfaces on the same machine.
Date Thu, 15 Aug 2013 18:27:49 GMT

     [ https://issues.apache.org/jira/browse/HBASE-8667?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

stack updated HBASE-8667:

       Resolution: Fixed
    Fix Version/s:     (was: 0.94.12)
     Hadoop Flags: Reviewed
           Status: Resolved  (was: Patch Available)

I tried this on a cluster.  Mangled the reverse lookup.   Stopped a running regionserver and
restarted it.  It showed as its IP rather than name because reverse lookup was broke but there
was only one server in the list as opposed to the two we used list.

This patch should help our usability in general w/ its fix of the ubuntu exception.  Nice
one Rajesh.

Committed to 0.95 and trunk and not to 0.94.  Will open new issue for 0.94.
> Master and Regionserver not able to communicate if both bound to different network interfaces
on the same machine.
> ------------------------------------------------------------------------------------------------------------------
>                 Key: HBASE-8667
>                 URL: https://issues.apache.org/jira/browse/HBASE-8667
>             Project: HBase
>          Issue Type: Bug
>          Components: IPC/RPC
>            Reporter: rajeshbabu
>            Assignee: rajeshbabu
>            Priority: Critical
>             Fix For: 0.98.0, 0.95.2
>         Attachments: HBASE-8667_trunk.patch, HBASE-8667_Trunk.patch, HBASE-8667_Trunk-V2.patch,
HBASE-8667_trunk_v4.patch, HBASE-8667_trunk_v5.patch, HBASE-8667_trunk_v6.patch
> While testing HBASE-8640 fix found that master and regionserver running on different
interfaces are not communicating properly.
> I have two interfaces 1) lo 2) eth0 in my machine and default hostname interface is lo.
> I have configured master ipc address to ip of eth0 interface.
> Started master and regionserver on the same machine.
> 1) master rpc server bound to eth0 and RS rpc server bound to lo
> 2) Since rpc client is not binding to any ip address, when RS is reporting RS startup
its getting registered with eth0 ip address(but actually it should register localhost)
> Here are RS logs:
> {code}
> 2013-05-31 06:05:28,608 WARN  [regionserver60020] org.apache.hadoop.hbase.regionserver.HRegionServer:
reportForDuty failed; sleeping and then retrying.
> 2013-05-31 06:05:31,609 INFO  [regionserver60020] org.apache.hadoop.hbase.regionserver.HRegionServer:
Attempting connect to Master server at,60000,1369960497008
> 2013-05-31 06:05:31,609 INFO  [regionserver60020] org.apache.hadoop.hbase.regionserver.HRegionServer:
Telling master at,60000,1369960497008 that we are up with port=60020, startcode=1369960502544
> 2013-05-31 06:05:31,618 DEBUG [regionserver60020] org.apache.hadoop.hbase.regionserver.HRegionServer:
Config from master: hbase.rootdir=hdfs://localhost:2851/hbase
> 2013-05-31 06:05:31,618 DEBUG [regionserver60020] org.apache.hadoop.hbase.regionserver.HRegionServer:
Config from master: fs.default.name=hdfs://localhost:2851
> 2013-05-31 06:05:31,618 INFO  [regionserver60020] org.apache.hadoop.hbase.regionserver.HRegionServer:
Master passed us a different hostname to use; was=localhost, but now=
> {code}
> Here are master logs:
> {code}
> 2013-05-31 06:05:31,615 INFO  [IPC Server handler 9 on 60000] org.apache.hadoop.hbase.master.ServerManager:
Registering server=,60020,1369960502544
> {code}
> Since master has wrong rpc server address of RS, META is not getting assigned.
> {code}
> 2013-05-31 06:05:34,362 DEBUG [master-,60000,1369960497008] org.apache.hadoop.hbase.master.AssignmentManager:
No previous transition plan was found (or we are ignoring an existing plan) for .META.,,1.1028785192
so generated a random one; hri=.META.,,1.1028785192, src=, dest=,60020,1369960502544;
1 (online=1, available=1) available servers, forceNewPlan=false
> -----
> org.apache.hadoop.hbase.master.AssignmentManager: Failed assignment of .META.,,1.1028785192
to,60020,1369960502544, trying to assign elsewhere instead; try=1 of 10
> java.net.ConnectException: Connection refused
> 	at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> 	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:592)
> 	at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
> 	at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:511)
> 	at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:481)
> 	at org.apache.hadoop.hbase.ipc.RpcClient$Connection.setupConnection(RpcClient.java:549)
> 	at org.apache.hadoop.hbase.ipc.RpcClient$Connection.setupIOstreams(RpcClient.java:813)
> 	at org.apache.hadoop.hbase.ipc.RpcClient.getConnection(RpcClient.java:1422)
> 	at org.apache.hadoop.hbase.ipc.RpcClient.call(RpcClient.java:1315)
> 	at org.apache.hadoop.hbase.ipc.RpcClient.callBlockingMethod(RpcClient.java:1532)
> 	at org.apache.hadoop.hbase.ipc.RpcClient$BlockingRpcChannelImplementation.callBlockingMethod(RpcClient.java:1587)
> 	at org.apache.hadoop.hbase.protobuf.generated.AdminProtos$AdminService$BlockingStub.openRegion(AdminProtos.java:15039)
> 	at org.apache.hadoop.hbase.master.ServerManager.sendRegionOpen(ServerManager.java:627)
> 	at org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1826)
> 	at org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1453)
> 	at org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1432)
> 	at org.apache.hadoop.hbase.master.handler.ClosedRegionHandler.process(ClosedRegionHandler.java:104)
> 	at org.apache.hadoop.hbase.master.AssignmentManager.addToRITandCallClose(AssignmentManager.java:699)
> 	at org.apache.hadoop.hbase.master.AssignmentManager.processRegionsInTransition(AssignmentManager.java:584)
> 	at org.apache.hadoop.hbase.master.AssignmentManager.processRegionInTransition(AssignmentManager.java:517)
> 	at org.apache.hadoop.hbase.master.AssignmentManager.processRegionInTransitionAndBlockUntilAssigned(AssignmentManager.java:473)
> 	at org.apache.hadoop.hbase.master.HMaster.assignMeta(HMaster.java:917)
> 	at org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:803)
> 	at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:547)
> 	at java.lang.Thread.run(Thread.java:636)
> {code}

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