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From Hari Sreekumar <hsreeku...@clickable.com>
Subject Re: Problem in Running HBase in Pseudo Distributed Mode
Date Wed, 17 Nov 2010 08:12:04 GMT
It seems to be all right. How long do you wait after starting HBase before
trying to list? Wait 5 mins after starting the daemons before listing. Did
you try list after checking the master log (the one you have uploaded here)
? You could also try using localhost instead of the hostname in the conf
files. Let me know..

hari

On Wed, Nov 17, 2010 at 12:57 PM, Alaukik Aggarwal <
alaukik.aggarwal@gmail.com> wrote:

> $ bin/hadoop fs -ls /
> Found 2 items
> drwxr-xr-x   - alaukik supergroup          0 2010-11-16 23:28 /hbase
> drwxr-xr-x   - alaukik supergroup          0 2010-11-16 23:17 /tmp
>
> $ bin/hadoop fs -ls /hbase
> Found 4 items
> drwxr-xr-x   - alaukik supergroup          0 2010-11-16 23:26 /hbase/-ROOT-
> drwxr-xr-x   - alaukik supergroup          0 2010-11-16 23:17 /hbase/.META.
> drwxr-xr-x   - alaukik supergroup          0 2010-11-16 23:39 /hbase/.logs
> -rw-r--r--   3 alaukik supergroup          3 2010-11-16 23:17
> /hbase/hbase.version
>
> This also seems to fine.
>
> What could be the reason? :S
>
> Also, when does HMaster give the following in its Log:
> Failed to read: org.apache.zookeeper.KeeperException$NoNodeException:
> KeeperErrorCode = NoNode for /hbase/master
>
> Alaukik
>
>
> On Wed, Nov 17, 2010 at 2:03 AM, Hari Sreekumar
> <hsreekumar@clickable.com> wrote:
> > No, for pseudo distributed mode, you shouldn't set
> hbase.cluster.distributed
> > to true. /etc/hosts seems to be fine. And HMaster is running fine as per
> the
> > log file. Did you try browsing root in HDFS? (dfs -ls /). Has a directory
> > named hbase been created automatically? Does it contain anything?
> >
> > On Wed, Nov 17, 2010 at 11:06 AM, Alaukik Aggarwal <
> > alaukik.aggarwal@gmail.com> wrote:
> >
> >> Thanks for your quick reply.
> >>
> >> $ cat /etc/hosts
> >> 127.0.0.1       localhost
> >> 192.168.1.2     alaukik
> >>
> >> # The following lines are desirable for IPv6 capable hosts
> >> ::1     localhost ip6-localhost ip6-loopback
> >> fe00::0 ip6-localnet
> >> ff00::0 ip6-mcastprefix
> >> ff02::1 ip6-allnodes
> >> ff02::2 ip6-allrouters
> >> ff02::3 ip6-allhosts
> >>
> >>
> >> My OS is Ubuntu 10.04.1.
> >>
> >> In regionservers.log:
> >> Tue Nov 16 23:38:54 EST 2010 Starting regionserver on alaukik
> >> ulimit -n 1024
> >> 2010-11-16 23:38:55,706 WARN
> >> org.apache.hadoop.hbase.regionserver.HRegionServer: Not starting a
> >> distinct region server because hbase.cluster.distributed is false
> >>
> >> Should we set distributed as true?
> >> I am trying to run this in pseudo-distributed mode. And on HBase site,
> >> it is mentioned that this is set true only in distributed mode.
> >>
> >> Alaukik
> >>
> >>
> >>
> >> On Wed, Nov 17, 2010 at 12:00 AM, Hari Sreekumar
> >> <hsreekumar@clickable.com> wrote:
> >> > Hi,
> >> >   hmm... It seems HRegionServer is unable to start because it doesn't
> see
> >> > the HMaster at 192.168.1.2:60000. Can you post your /etc/hosts file?
> >> There
> >> > might be issues with the wrong IP being reported. What is your OS?
> >> >
> >> > hari
> >> >
> >> > On Wed, Nov 17, 2010 at 10:21 AM, Alaukik Aggarwal <
> >> > alaukik.aggarwal@gmail.com> wrote:
> >> >
> >> >> Hi,
> >> >>
> >> >> I am running HBase configured in Pseudo-distributed mode (Hadoop also
> >> >> in Pseudo Distributed mode)
> >> >> Hadoop version: 0.20.2
> >> >> HBase version: 0.20.6
> >> >>
> >> >> On running any command (for instance, list) in HBase shell, it gives
> me:
> >> >> ERROR: org.apache.hadoop.hbase.MasterNotRunningException: null
> >> >>
> >> >> I can see master running at: http://alaukik:60010/master.jsp
> >> >> (Similarly, I can also see namenode running in Web UI).
> >> >>
> >> >> On jps, I get all the required processes running:
> >> >>
> >> >> $ jps
> >> >> 9513 HQuorumPeer
> >> >> 9259 TaskTracker
> >> >> 9099 JobTracker
> >> >> 9771 Jps
> >> >> 8677 NameNode
> >> >> 9572 HMaster
> >> >> 9019 SecondaryNameNode
> >> >> 8848 DataNode
> >> >>
> >> >> I have attached a fresh log of hbase-master and my hbase-site.xml
> file.
> >> >>
> >> >> I cannot see any exception in the log, except a Failed notification:
> >> >> Failed to read: org.apache.zookeeper.KeeperException$NoNodeException:
> >> >> KeeperErrorCode = NoNode for /hbase/master
> >> >>
> >> >> Also if I try to access HBase through Java client (exact sample code
> >> >> given on apache HBase site), I get the follwoing output:
> >> >> 10/11/16 23:46:29 WARN hbase.HBaseConfiguration: instantiating
> >> >> HBaseConfiguration() is deprecated. Please use
> >> >> HBaseConfiguration#create() to construct a plain Configuration
> >> >> 2
> >> >> 10/11/16 23:46:29 INFO zookeeper.ZooKeeperWrapper: Reconnecting to
> >> >> zookeeper
> >> >> 10/11/16 23:46:29 INFO zookeeper.ZooKeeper: Client
> >> >> environment:zookeeper.version=3.3.1-942149, built on 05/07/2010 17:14
> >> >> GMT
> >> >> 10/11/16 23:46:29 INFO zookeeper.ZooKeeper: Client environment:
> >> host.name
> >> >> =alaukik
> >> >> 10/11/16 23:46:29 INFO zookeeper.ZooKeeper: Client
> >> >> environment:java.version=1.6.0_22
> >> >> 10/11/16 23:46:29 INFO zookeeper.ZooKeeper: Client
> >> >> environment:java.vendor=Sun Microsystems Inc.
> >> >> 10/11/16 23:46:29 INFO zookeeper.ZooKeeper: Client
> >> >> environment:java.home=/usr/lib/jvm/java-6-sun-1.6.0.22/jre
> >> >> 10/11/16 23:46:29 INFO zookeeper.ZooKeeper: Client
> >> >> environment:java.class.path=/home/.............log4j-1.2.15.jar
> >> >> 10/11/16 23:46:29 INFO zookeeper.ZooKeeper: Client
> >> >>
> >> >>
> >>
> environment:java.library.path=/usr/lib/jvm/java-6-sun-1.6.0.22/jre/lib/i386/server:/usr/lib/jvm/java-6-sun-1.6.0.22/jre/lib/i386:/usr/lib/jvm/java-6-sun-1.6.0.22/jre/../lib/i386:/usr/lib/jvm/java-6-sun-1.6.0.22/jre/lib/i386/client:/usr/lib/jvm/java-6-sun-1.6.0.22/jre/lib/i386:/usr/lib/xulrunner-addons:/usr/lib/xulrunner-addons:/usr/java/packages/lib/i386:/lib:/usr/lib
> >> >> 10/11/16 23:46:29 INFO zookeeper.ZooKeeper: Client
> >> >> environment:java.io.tmpdir=/tmp
> >> >> 10/11/16 23:46:29 INFO zookeeper.ZooKeeper: Client
> >> >> environment:java.compiler=<NA>
> >> >> 10/11/16 23:46:29 INFO zookeeper.ZooKeeper: Client environment:
> os.name
> >> >> =Linux
> >> >> 10/11/16 23:46:29 INFO zookeeper.ZooKeeper: Client
> >> environment:os.arch=i386
> >> >> 10/11/16 23:46:29 INFO zookeeper.ZooKeeper: Client
> >> >> environment:os.version=2.6.32-25-generic
> >> >> 10/11/16 23:46:29 INFO zookeeper.ZooKeeper: Client environment:
> >> user.name
> >> >> =alaukik
> >> >> 10/11/16 23:46:29 INFO zookeeper.ZooKeeper: Client
> >> >> environment:user.home=/home/alaukik
> >> >> 10/11/16 23:46:29 INFO zookeeper.ZooKeeper: Client
> >> >> environment:user.dir=/home/alaukik/Documents/workspace/HBaseTest
> >> >> 10/11/16 23:46:29 INFO zookeeper.ZooKeeper: Initiating client
> >> >> connection, connectString=alaukik:2222 sessionTimeout=60000
> >> >> watcher=org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper@1126b07
> >> >> 10/11/16 23:46:29 INFO zookeeper.ClientCnxn: Opening socket
> connection
> >> >> to server alaukik/192.168.1.2:2222
> >> >> 10/11/16 23:46:29 INFO zookeeper.ClientCnxn: Socket connection
> >> >> established to alaukik/192.168.1.2:2222, initiating session
> >> >> 10/11/16 23:46:29 INFO zookeeper.ClientCnxn: Session establishment
> >> >> complete on server alaukik/192.168.1.2:2222, sessionid =
> >> >> 0x12c5820cbf80003, negotiated timeout = 60000
> >> >> 10/11/16 23:46:30 INFO client.HConnectionManager$TableServers:
> >> >> getMaster attempt 0 of 4 failed; retrying after sleep of 5000
> >> >> java.io.IOException: Call to /192.168.1.2:60000 failed on local
> >> >> exception: java.io.EOFException
> >> >>        at
> >> >>
> >>
> org.apache.hadoop.hbase.ipc.HBaseClient.wrapException(HBaseClient.java:779)
> >> >>        at
> >> >> org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:748)
> >> >>        at
> >> >>
> org.apache.hadoop.hbase.ipc.HBaseRPC$Invoker.invoke(HBaseRPC.java:255)
> >> >>        at $Proxy0.getProtocolVersion(Unknown Source)
> >> >>        at
> >> org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:412)
> >> >>        at
> >> org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:388)
> >> >>        at
> >> org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:435)
> >> >>        at
> >> >>
> >>
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.getMaster(HConnectionManager.java:383)
> >> >>        at
> >> >> org.apache.hadoop.hbase.client.HBaseAdmin.<init>(HBaseAdmin.java:78)
> >> >>        at com.gt.hbase.HBase2.main(HBase2.java:30)
> >> >> Caused by: java.io.EOFException
> >> >>        at java.io.DataInputStream.readInt(DataInputStream.java:375)
> >> >>        at
> >> >>
> >>
> org.apache.hadoop.hbase.ipc.HBaseClient$Connection.receiveResponse(HBaseClient.java:512)
> >> >>        at
> >> >>
> >>
> org.apache.hadoop.hbase.ipc.HBaseClient$Connection.run(HBaseClient.java:452)
> >> >>
> >> >>
> >> >> Kindly help,
> >> >> Alaukik
> >> >>
> >> >
> >>
> >
>

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