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From Vaibhav Puranik <vpura...@gmail.com>
Subject Re: problem starting Hbase 0.20 with Katta on EC2
Date Sun, 02 Aug 2009 19:55:40 GMT
He means the EC2 security group, not ZK security groups.

EC2 comes with a concept of security groups. Every time you launch an EC2
instance you can make it part of one or more security groups.

Ports on launched EC2 instances are not open by default unless you open them
by configuring security groups. You can google for more information or read
here - http://wiki.github.com/auser/poolparty/ec2-security-groups

Regards,
Vaibhav

On Sun, Aug 2, 2009 at 12:49 PM, Yair Even-Zohar
<yaire@audiencescience.com>wrote:

> What is ZK security group?  (I know very little of zookeeper)
>
> I thought the following zookeeper props set these up
>
> zookeeper.servers=domU-12-31-39-06-29-91.compute-1.internal:2888:3888
> zookeeper.clientPort=2181
>
> do I have to set them up in Hbase too (even though that's the default)?
>
>
> -----Original Message-----
> From: Andrew Purtell [mailto:apurtell@apache.org]
> Sent: Sunday, August 02, 2009 10:13 PM
> To: hbase-user@hadoop.apache.org
> Subject: Re: problem starting Hbase 0.20 with Katta on EC2
>
> Hi,
>
> Have you set up the security group for your instances to allow the
> Zookeeper quorum peers to communicate with each other and clients?
>
> You need to allow all instances to communicate with each other on the
> following ports:
>
>   2181: client
>   2888: replication
>   3888: leader election
>
>
> The above are the defaults. All can be changed via various settings
> in hbase-site.xml (see hbase-default.xml).
>
>  - Andy
>
>
>
> ________________________________
> From: Yair Even-Zohar <yaire@audiencescience.com>
> To: hbase-user@hadoop.apache.org; katta-developer@lists.sourceforge.net
> Sent: Sunday, August 2, 2009 11:57:40 AM
> Subject: problem starting Hbase 0.20 with Katta on EC2
>
> I have the following problem when trying to run hbase 0.20 on ec2.
>
> First, I start katta which in turn starts zookeeper with the following
> properties (zookeeper.zk.properties):
>
>
>
> zookeeper.servers=domU-12-31-39-06-29-91.compute-1.internal:2888:3888
>
> #zookeeper client timeout in milliseconds
>
> zookeeper.timeout=150000
>
> #zookeeper tick time
>
> zookeeper.tick-time=60000
>
> # zookeeper init time limit
>
> zookeeper.init-limit=5
>
> # zookeeper sync limit
>
> zookeeper.sync-limit=2
>
> # zookeeper folder where data are stored
>
> zookeeper.data-dir=/mnt/katta/data
>
> # zookeeper folder where log data are stored
>
> zookeeper.log-data-dir=/mnt/katta/logs
>
> # zookeeper client port
>
> zookeeper.clientPort=2181
>
>
>
> I am running Hbase 0.20 RC1 with the following zk properties in
> hbase-site.xml:
>
> <property>
>
>    <name>hbase.cluster.distributed</name>
>
>    <value>true</value>
>
>  </property>
>
>
>
>  <property>
>
>    <name>hbase.zookeeper.quorum</name>
>
>    <value>domU-12-31-39-06-29-91.compute-1.internal</value>
>
>  </property>
>
>
>
>
>
>
>
> Unfortunately, I'm getting the following errors:
>
>
>
>
>
> 2009-08-02 14:32:09,381 INFO org.apache.zookeeper.ZooKeeper: Initiating
> client connection, host=domU-12-31-39-06-29-91.compute-1.internal:2181
> sessionTimeout=30000
> watcher=org.apache.hadoop.hbase.regionserver.HRegionServer@120bf2c
>
> 2009-08-02 14:32:09,383 INFO org.apache.zookeeper.ClientCnxn:
> zookeeper.disableAutoWatchReset is false
>
> 2009-08-02 14:32:09,415 INFO org.apache.zookeeper.ClientCnxn: Attempting
> connection to server
> domU-12-31-39-06-29-91.compute-1.internal/10.208.46.95:2181
>
> 2009-08-02 14:32:09,424 WARN org.apache.zookeeper.ClientCnxn: Exception
> closing session 0x0 to sun.nio.ch.SelectionKeyImpl@181ed9e
>
> java.net.ConnectException: Connection refused
>
>        at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>
>        at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
>
>        at
> org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:885)
>
> 2009-08-02 14:32:09,431 WARN org.apache.zookeeper.ClientCnxn: Ignoring
> exception during shutdown input
>
> java.nio.channels.ClosedChannelException
>
>        at
> sun.nio.ch.SocketChannelImpl.shutdownInput(SocketChannelImpl.java:638)
>
>        at
> sun.nio.ch.SocketAdaptor.shutdownInput(SocketAdaptor.java:360)
>
>        at
> org.apache.zookeeper.ClientCnxn$SendThread.cleanup(ClientCnxn.java:951)
>
>
>
> Looks like I have problem connecting to zookeeper but I have no clue
> why. Server name is correct, client port is 2181 and user is root.
>
> Any help?
>
>
>
> Thanks
>
> -Yair
>
>
>
>

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