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From stack <st...@duboce.net>
Subject Re: HBase 0.20.1 Distributed Install Problems
Date Wed, 11 Nov 2009 18:02:49 GMT
If there is anything you thing we should improve in our 'Getting Started',
please say so.
St.Ack

On Wed, Nov 11, 2009 at 9:57 AM, Chris Bates <
christopher.andrew.bates@gmail.com> wrote:

> Ok, thats what I was wondering. I started reading through the Hbase chapter
> in OReilly's Hadoop book.
>
> All -- thank you for your help!  I hope to do a short write up in a blog I
> just started.  Hopefully this discussion will be helpful to other new
> users.
>
> On Wed, Nov 11, 2009 at 12:41 PM, Lars George <lars@worldlingo.com> wrote:
>
> > Hi Chris,
> >
> > Please note that only one server gets to host the .META. table and
> another
> > the -ROOT- table. That is it. All user regions are then equally
> distributed
> > across all region servers.
> >
> > So it sounds like you are all set. Not sure what happened initially with
> > the Zookeeper hang up. Keep an eye on it.
> >
> > Lars
> >
> >
> > On Nov 11, 2009, at 15:12, Chris Bates <
> christopher.andrew.bates@gmail.com>
> > wrote:
> >
> >  @Lars -- We're configured like in the "Getting Started" guide -- tried
> to
> >> follow the instructions verbatim.
> >>
> >> Ok. Thanks for the tip. I'm not sure what causes the orphan behavior,
> but
> >> thats good to know.  I'll also know what to look for in the jstack.
>  After
> >> stopping the region servers individually, then doing a stop / restart, I
> >> get
> >> regionserver logs
> >>
> >> Here is M2 (chanel)
> >> Wed Nov 11 08:49:30 EST 2009 Starting regionserver on chanel
> >> ulimit -n 1024
> >> 2009-11-11 08:49:32,081 INFO
> >> org.apache.hadoop.hbase.regionserver.HRegionServer:
> >> vmInputArguments=[-Xmx1000m, -XX:+HeapDumpOnOutOfMemoryError,
> >> -XX:+UseConcMarkSweepGC, -XX:+CMSIncrementalMode, -Dhbase.lo
> >> 2009-11-11 08:49:32,229 INFO
> >> org.apache.hadoop.hbase.regionserver.HRegionServer: My address is
> >> chanel.local:60020
> >> 2009-11-11 08:49:32,418 INFO
> org.apache.hadoop.hbase.ipc.HBaseRpcMetrics:
> >> Initializing RPC Metrics with hostName=HRegionServer, port=60020
> >> 2009-11-11 08:49:32,629 INFO
> >> org.apache.hadoop.hbase.regionserver.MemStoreFlusher:
> >> globalMemStoreLimit=398.7m, globalMemStoreLimitLowMark=249.2m,
> >> maxHeap=996.8m
> >> 2009-11-11 08:49:32,641 INFO
> >> org.apache.hadoop.hbase.regionserver.HRegionServer: Runs every
> 10000000ms
> >> 2009-11-11 08:49:32,749 INFO org.apache.zookeeper.ZooKeeper: Client
> >> environment:zookeeper.version=3.2.1-808558, built on 08/27/2009 18:48
> GMT
> >> 2009-11-11 08:49:32,749 INFO org.apache.zookeeper.ZooKeeper: Client
> >> environment:host.name=chanel.local
> >> 2009-11-11 08:49:32,749 INFO org.apache.zookeeper.ZooKeeper: Client
> >> environment:java.version=1.6.0_16
> >> 2009-11-11 08:49:32,749 INFO org.apache.zookeeper.ZooKeeper: Client
> >> environment:java.vendor=Sun Microsystems Inc.
> >> 2009-11-11 08:49:32,749 INFO org.apache.zookeeper.ZooKeeper: Client
> >> environment:java.home=/usr/lib/jvm/java-6-sun-1.6.0.16/jre
> >> 2009-11-11 08:49:32,749 INFO org.apache.zookeeper.ZooKeeper: Client
> >>
> >>
> environment:java.class.path=/opt/hadoop/hbase-0.20.1/bin/../conf:/usr/lib/jvm/java-6-sun/lib/tools.jar:/opt/hadoop/hbase-0.20.1/bin/..:
> >> 2009-11-11 08:49:32,749 INFO org.apache.zookeeper.ZooKeeper: Client
> >>
> >>
> environment:java.library.path=/opt/hadoop/hbase-0.20.1/bin/../lib/native/Linux-i386-32
> >> 2009-11-11 08:49:32,749 INFO org.apache.zookeeper.ZooKeeper: Client
> >> environment:java.io.tmpdir=/tmp
> >> 2009-11-11 08:49:32,749 INFO org.apache.zookeeper.ZooKeeper: Client
> >> environment:java.compiler=<NA>
> >> 2009-11-11 08:49:32,749 INFO org.apache.zookeeper.ZooKeeper: Client
> >> environment:os.name=Linux
> >> 2009-11-11 08:49:32,750 INFO org.apache.zookeeper.ZooKeeper: Client
> >> environment:os.arch=i386
> >> 2009-11-11 08:49:32,750 INFO org.apache.zookeeper.ZooKeeper: Client
> >> environment:os.version=2.6.24-24-generic
> >> 2009-11-11 08:49:32,750 INFO org.apache.zookeeper.ZooKeeper: Client
> >> environment:user.name=hadoop
> >> 2009-11-11 08:49:32,750 INFO org.apache.zookeeper.ZooKeeper: Client
> >> environment:user.home=/home/hadoop
> >> 2009-11-11 08:49:32,750 INFO org.apache.zookeeper.ZooKeeper: Client
> >> environment:user.dir=/opt/hadoop/hbase-0.20.1
> >> 2009-11-11 08:49:32,760 INFO org.apache.zookeeper.ZooKeeper: Initiating
> >> client connection,
> >>
> >>
> connectString=crunch2:2181,chanel2:2181,chanel:2181,chris:2181,crunch3:2181
> >> sessionTimeout=60000 watcher=org.apa
> >> 2009-11-11 08:49:32,781 INFO org.apache.zookeeper.ClientCnxn:
> >> zookeeper.disableAutoWatchReset is false
> >> 2009-11-11 08:49:32,800 INFO org.apache.zookeeper.ClientCnxn: Attempting
> >> connection to server crunch2/172.16.1.95:2181
> >> 2009-11-11 08:49:32,802 INFO org.apache.zookeeper.ClientCnxn: Priming
> >> connection to java.nio.channels.SocketChannel[connected local=/
> >> 172.16.1.45:33873 remote=crunch2/172.16.1.95:2181]
> >> 2009-11-11 08:49:32,814 INFO org.apache.zookeeper.ClientCnxn: Server
> >> connection successful
> >> 2009-11-11 08:49:32,829 INFO
> >> org.apache.hadoop.hbase.regionserver.HRegionServer: Got ZooKeeper event,
> >> state: SyncConnected, type: None, path: null
> >> 2009-11-11 08:49:32,973 INFO
> >> org.apache.hadoop.hbase.regionserver.HRegionServer: Telling master at
> >> 172.16.1.46:60000 that we are up
> >> 2009-11-11 08:49:33,509 INFO
> >> org.apache.hadoop.hbase.regionserver.HRegionServer: Master passed us
> >> address
> >> to use. Was=172.16.1.45:60020, Now=172.16.1.45
> >> 2009-11-11 08:49:34,090 INFO org.apache.hadoop.hbase.regionserver.HLog:
> >> HLog
> >> configuration: blocksize=67108864, rollsize=63753420, enabled=true,
> >> flushlogentries=100, optionallogflushinternal=10000ms
> >> 2009-11-11 08:49:34,281 INFO org.apache.hadoop.hbase.regionserver.HLog:
> >> New
> >> hlog
> /hbase/.logs/chanel.local,60020,1257947373328/hlog.dat.1257947374090
> >> 2009-11-11 08:49:34,319 INFO org.apache.hadoop.metrics.jvm.JvmMetrics:
> >> Initializing JVM Metrics with processName=RegionServer,
> >> sessionId=regionserver/172.16.1.45:60020
> >> 2009-11-11 08:49:34,350 INFO
> >> org.apache.hadoop.hbase.regionserver.metrics.RegionServerMetrics:
> >> Initialized
> >> 2009-11-11 08:49:34,723 INFO org.apache.hadoop.http.HttpServer: Port
> >> returned by webServer.getConnectors()[0].getLocalPort() before open() is
> >> -1.
> >> Opening the listener on 60030
> >> 2009-11-11 08:49:34,724 INFO org.apache.hadoop.http.HttpServer:
> >> listener.getLocalPort() returned 60030
> >> webServer.getConnectors()[0].getLocalPort() returned 60030
> >> 2009-11-11 08:49:34,724 INFO org.apache.hadoop.http.HttpServer: Jetty
> >> bound
> >> to port 60030
> >> 2009-11-11 08:49:35,673 INFO org.apache.hadoop.ipc.HBaseServer: IPC
> Server
> >> Responder: starting
> >> 2009-11-11 08:49:35,674 INFO org.apache.hadoop.ipc.HBaseServer: IPC
> Server
> >> listener on 60020: starting
> >> 2009-11-11 08:49:35,675 INFO org.apache.hadoop.ipc.HBaseServer: IPC
> Server
> >> handler 0 on 60020: starting
> >> 2009-11-11 08:49:35,675 INFO org.apache.hadoop.ipc.HBaseServer: IPC
> Server
> >> handler 1 on 60020: starting
> >> 2009-11-11 08:49:35,675 INFO org.apache.hadoop.ipc.HBaseServer: IPC
> Server
> >> handler 2 on 60020: starting
> >> 2009-11-11 08:49:35,675 INFO org.apache.hadoop.ipc.HBaseServer: IPC
> Server
> >> handler 3 on 60020: starting
> >> 2009-11-11 08:49:35,676 INFO org.apache.hadoop.ipc.HBaseServer: IPC
> Server
> >> handler 4 on 60020: starting
> >> 2009-11-11 08:49:35,676 INFO org.apache.hadoop.ipc.HBaseServer: IPC
> Server
> >> handler 5 on 60020: starting
> >> 2009-11-11 08:49:35,676 INFO org.apache.hadoop.ipc.HBaseServer: IPC
> Server
> >> handler 6 on 60020: starting
> >> 2009-11-11 08:49:35,676 INFO org.apache.hadoop.ipc.HBaseServer: IPC
> Server
> >> handler 7 on 60020: starting
> >> 2009-11-11 08:49:35,676 INFO org.apache.hadoop.ipc.HBaseServer: IPC
> Server
> >> handler 8 on 60020: starting
> >> 2009-11-11 08:49:35,676 INFO
> >> org.apache.hadoop.hbase.regionserver.HRegionServer: HRegionServer
> started
> >> at: 172.16.1.45:60020
> >> 2009-11-11 08:49:35,677 INFO org.apache.hadoop.ipc.HBaseServer: IPC
> Server
> >> handler 9 on 60020: starting
> >> 2009-11-11 08:49:35,694 INFO
> >> org.apache.hadoop.hbase.regionserver.StoreFile:
> >> Allocating LruBlockCache with maximum size 199.4m
> >> 2009-11-11 08:49:38,798 INFO
> >> org.apache.hadoop.hbase.regionserver.HRegionServer: MSG_REGION_OPEN:
> >> .META.,,1
> >> 2009-11-11 08:49:38,811 INFO
> >> org.apache.hadoop.hbase.regionserver.HRegionServer: Worker:
> >> MSG_REGION_OPEN:
> >> .META.,,1
> >> 2009-11-11 08:49:38,932 INFO
> org.apache.hadoop.hbase.regionserver.HRegion:
> >> region .META.,,1/1028785192 available; sequence id is 0
> >>
> >> The only difference between that log file and the rest is that the
> others
> >> don't have
> >> 2009-11-11 08:49:38,798 INFO
> >> org.apache.hadoop.hbase.regionserver.HRegionServer: MSG_REGION_OPEN:
> >> .META.,,1
> >> 2009-11-11 08:49:38,811 INFO
> >> org.apache.hadoop.hbase.regionserver.HRegionServer: Worker:
> >> MSG_REGION_OPEN:
> >> .META.,,1
> >> 2009-11-11 08:49:38,932 INFO
> org.apache.hadoop.hbase.regionserver.HRegion:
> >> region .META.,,1/1028785192 available; sequence id is 0
> >>
> >> except M5 which has it and says id is 3....if you want me to paste all
> the
> >> logs, I can...didn't think it was necessary.
> >>
> >> hbase(main):001:0> zk_dump
> >>
> >> HBase tree in ZooKeeper is rooted at /hbase
> >>  Cluster up? true
> >>  In safe mode? false
> >>  Master address: 172.16.1.46:60000
> >>  Region server holding ROOT: 172.16.1.96:60020
> >>  Region servers:
> >>   - 172.16.1.95:60020
> >>   - 172.16.1.96:60020
> >>   - 172.16.1.83:60020
> >>   - 172.16.1.45:60020
> >> hbase(main):002:0> status 'simple'
> >> 4 live servers
> >>   crunch3.local:60020 1257928281006
> >>       requests=0, regions=1, usedHeap=31, maxHeap=998
> >>   chris.local:60020 1257947367197
> >>       requests=0, regions=0, usedHeap=29, maxHeap=996
> >>   crunch2.local:60020 1257947370011
> >>       requests=0, regions=0, usedHeap=29, maxHeap=998
> >>   chanel.local:60020 1257947373328
> >>       requests=0, regions=1, usedHeap=31, maxHeap=996
> >> 0 dead servers
> >>
> >>
> >> I started and stopped Hbase a couple times without deleting the HDFS
> copy,
> >> and everything seems to work fine....was that it??? What caused the
> >> regionservers to orphan?
> >>
> >> On Wed, Nov 11, 2009 at 5:17 AM, Lars George <lars@worldlingo.com>
> wrote:
> >>
> >>  Hi Chris,
> >>>
> >>> As Tatsuya says, but I would expect you have to "kill" them as they are
> >>> in
> >>> a state where a daemon stop may not work as they will not be
> perceptible
> >>> to
> >>> that event yet.
> >>>
> >>> I saw the same as Tatsuya and assumed you have an issue with your
> quorum
> >>> setting on the slaves. I have not followed the whole discussion in all
> >>> the
> >>> details so let me ask you how you configured it?
> >>>
> >>> I have personally done a symlink of my standalone zoo.cfg from the
> >>> zookeeper/conf to the hbase/conf directory. You could also have set the
> >>> quorum servers in the hbase-site.xml as per the "Getting started"
> guide.
> >>>
> >>> If you have done one of those ways already then make sure all ZK
> servers
> >>> are up and can be reached from the region servers.
> >>>
> >>> Lars
> >>>
> >>> Tatsuya Kawano schrieb:
> >>>
> >>> Hi Chris, and thanks Lars for help.
> >>>
> >>>>
> >>>> OK. So "jstack 22200" shows your region server is trying to finish
> >>>> starting up, but stuck in a middle when try to get IP address of the
> >>>> master from ZooKeeper.
> >>>>
> >>>> ===========================================================
> >>>> "main" prio=10 tid=0x0805a800 nid=0x56d2 waiting on condition
> >>>> [0xb72f2000]
> >>>> java.lang.Thread.State: TIMED_WAITING (sleeping)
> >>>> at java.lang.Thread.sleep(Native Method)
> >>>> at org.apache.hadoop.hbase.util.Sleeper.sleep(Sleeper.java:74)
> >>>> at org.apache.hadoop.hbase.util.Sleeper.sleep(Sleeper.java:51)
> >>>> at
> >>>>
> >>>>
> >>>>
> org.apache.hadoop.hbase.regionserver.HRegionServer.watchMasterAddress(HRegionServer.java:387)
> >>>> at
> >>>>
> >>>>
> >>>>
> org.apache.hadoop.hbase.regionserver.HRegionServer.reinitializeZooKeeper(HRegionServer.java:315)
> >>>> at
> >>>>
> >>>>
> >>>>
> org.apache.hadoop.hbase.regionserver.HRegionServer.reinitialize(HRegionServer.java:306)
> >>>> at
> >>>>
> >>>>
> >>>>
> org.apache.hadoop.hbase.regionserver.HRegionServer.<init>(HRegionServer.java:276)
> >>>> ===========================================================
> >>>>
> >>>> I still need to see the regionserver logs to figure out why this is
> >>>> happening.
> >>>>
> >>>>
> >>>> Also,
> >>>>
> >>>>
> >>>>
> >>>>  This is what I see when I run start-hbase.sh -- I can ssh into any
of
> >>>>> the
> >>>>> boxes with no password just fine, it just gives me a weird first
time
> >>>>> host
> >>>>> message...we get the same thing when we start up hadoop.
> >>>>>
> >>>>>
> >>>>>  ...
> >>>>
> >>>>
> >>>>  crunch2: regionserver running as process 6950. Stop it first.
> >>>>> chanel: regionserver running as process 22200. Stop it first.
> >>>>> crunch3: regionserver running as process 28962. Stop it first.
> >>>>> chris: regionserver running as process 28719. Stop it first.
> >>>>>
> >>>>>
> >>>>>
> >>>> This "Stop it first" message means your region servers didn't stop
> >>>> when you ran stop-hbase.sh. The master couldn't locate those region
> >>>> servers so it couldn't tell them to shutdown. This is why you've got
> >>>> those orphan region servers. So until we finish setting your HBase
> >>>> cluster up, you'll have to stop those region servers by hand.
> >>>>
> >>>> To do this, ssh to M2 -- M5, and type the following command:
> >>>> ${HBASE_HOME}/bin/hbase-daemon.sh stop regionserver
> >>>>
> >>>> Then jps again to make sure HRegionServer doesn't exist. If the above
> >>>> command doesn't work, you can use Unix "kill" command. Then ssh to M1,
> >>>> run stop-hbase.sh to stop the master and ZooKeepers.
> >>>>
> >>>>
> >>>> It's still a mystery you don't have regionserver logs while you have
> >>>> zookeeper logs. Maybe those orphan region servers was the reason?  I
> >>>> don't know, but you can give it another try after stopping them. So,
> >>>> try to stop whole HBase / ZooKeeper process by above way, then run
> >>>> start-hbase.sh once again. If you can get the regionserver log to us,
> >>>> that would be great.
> >>>>
> >>>> Thanks,
> >>>>
> >>>>
> >>>>
> >>>>
> >>>
>

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