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Posted to user@hbase.apache.org by Matt Corgan <mc...@hotpads.com> on 2009/09/15 06:29:28 UTC

possible resolution for "unable to start hbase-0.20 rc2 due to zookeeper problem"

Hi All,
I was setting up hbase-0.20.0 in standalone mode on cygwin tonight and ran
across this exact problem from August 31st:

http://www.mail-archive.com/hbase-user@hadoop.apache.org/msg05873.html

I believe I fixed it by changing conf/hbase-default.xml from

  <property>
    <name>hbase.zookeeper.quorum</name>
    <value>*localhost*</value>
    <description>Comma separated list of servers in the ZooKeeper Quorum.
    For example, "host1.mydomain.com,host2.mydomain.com,host3.mydomain.com".
    By default this is set to localhost for local and pseudo-distributed
modes
    of operation. For a fully-distributed setup, this should be set to a
full
    list of ZooKeeper quorum servers. If HBASE_MANAGES_ZK is set in
hbase-env.sh
    this is the list of servers which we will start/stop ZooKeeper on.
    </description>
  </property>

to

  <property>
    <name>hbase.zookeeper.quorum</name>
    <value>*127.0.0.1*</value>
    <description>Comma separated list of servers in the ZooKeeper Quorum.
    For example, "host1.mydomain.com,host2.mydomain.com,host3.mydomain.com".
    By default this is set to localhost for local and pseudo-distributed
modes
    of operation. For a fully-distributed setup, this should be set to a
full
    list of ZooKeeper quorum servers. If HBASE_MANAGES_ZK is set in
hbase-env.sh
    this is the list of servers which we will start/stop ZooKeeper on.
    </description>
  </property>

I guess zookeeper doesn't understand localhost in cygwin or something.
 Maybe the value could be changed by default or a note could be added to the
getting started guide.  Everything else has gone smoothly so far.

Matt

Re: possible resolution for "unable to start hbase-0.20 rc2 due to zookeeper problem"

Posted by Ryan Rawson <ry...@gmail.com>.
I would assume that cygwin is a non-unix compatible system - localhost
is more or less assured to work on all unix system.

Thanks for the report, I hope more people will benefit from this.

Guys, should we consider switching to IP?  IP will always work, but
obviously hostname can fail...

-ryan

On Mon, Sep 14, 2009 at 9:29 PM, Matt Corgan <mc...@hotpads.com> wrote:
> Hi All,
> I was setting up hbase-0.20.0 in standalone mode on cygwin tonight and ran
> across this exact problem from August 31st:
>
> http://www.mail-archive.com/hbase-user@hadoop.apache.org/msg05873.html
>
> I believe I fixed it by changing conf/hbase-default.xml from
>
>  <property>
>    <name>hbase.zookeeper.quorum</name>
>    <value>*localhost*</value>
>    <description>Comma separated list of servers in the ZooKeeper Quorum.
>    For example, "host1.mydomain.com,host2.mydomain.com,host3.mydomain.com".
>    By default this is set to localhost for local and pseudo-distributed
> modes
>    of operation. For a fully-distributed setup, this should be set to a
> full
>    list of ZooKeeper quorum servers. If HBASE_MANAGES_ZK is set in
> hbase-env.sh
>    this is the list of servers which we will start/stop ZooKeeper on.
>    </description>
>  </property>
>
> to
>
>  <property>
>    <name>hbase.zookeeper.quorum</name>
>    <value>*127.0.0.1*</value>
>    <description>Comma separated list of servers in the ZooKeeper Quorum.
>    For example, "host1.mydomain.com,host2.mydomain.com,host3.mydomain.com".
>    By default this is set to localhost for local and pseudo-distributed
> modes
>    of operation. For a fully-distributed setup, this should be set to a
> full
>    list of ZooKeeper quorum servers. If HBASE_MANAGES_ZK is set in
> hbase-env.sh
>    this is the list of servers which we will start/stop ZooKeeper on.
>    </description>
>  </property>
>
> I guess zookeeper doesn't understand localhost in cygwin or something.
>  Maybe the value could be changed by default or a note could be added to the
> getting started guide.  Everything else has gone smoothly so far.
>
> Matt
>