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Posted to user@accumulo.apache.org by "Smith, Joshua D." <Jo...@gd-ais.com> on 2013/09/16 20:22:05 UTC
Disconnect between Accumulo instances seen by Zookeeper and Accumulo
What would cause a situation where Zookeeper shows Accumulo instances but Accumulo lists no instances?
Executing an ls /accumulo/instances using zkCli.sh I can see two instances listed.
Using bin/accumulo org.apache.accumulo.server.util.ListInstances I see none listed.
I'm running CDH4.3 and Accumulo 1.4.3.
Josh
RE: Disconnect between Accumulo instances seen by Zookeeper and
Accumulo
Posted by "Smith, Joshua D." <Jo...@gd-ais.com>.
John-
That fixed it. Not only did each of the zoo.cfg files not contain the server.x lines, they each had the same id in their myid file. They didn't know about each other at all.
Once I read the entry on server.x in the Zookeeper Administrator's Guide (http://zookeeper.apache.org/doc/r3.1.2/zookeeperAdmin.html#sc_configuration) it all made sense.
Thanks for the assist.
Josh
From: John Vines [mailto:vines@apache.org]
Sent: Monday, September 16, 2013 3:32 PM
To: user@accumulo.apache.org
Subject: Re: Disconnect between Accumulo instances seen by Zookeeper and Accumulo
Did you configure your zookeepers together in their zoo.cfg?
On Mon, Sep 16, 2013 at 3:05 PM, Smith, Joshua D. <Jo...@gd-ais.com>> wrote:
Thanks John.
I confirmed that all of my accumulo-site.xml files have the same list of Zookeeper instances for instance.zookeeper.host. So that led me to wonder about consistency. I decided to see if all of the Zookeeper nodes match. They don't.
Two of the zookeeper nodes do not have any /accumulo path. One does. So Accumulo must be answering based on one or both of the Zookeeper nodes that do not have a /accumulo path and not based on the one with the path. I'm not sure how Zookeeper got into this state. Any ideas on how to fix it?
Thanks,
Josh
From: John Vines [mailto:vines@apache.org<ma...@apache.org>]
Sent: Monday, September 16, 2013 2:33 PM
To: user@accumulo.apache.org<ma...@accumulo.apache.org>
Subject: Re: Disconnect between Accumulo instances seen by Zookeeper and Accumulo
Using ListInstances uses the defined zookeepers from accumulo-site.xml. If you have accumulo-site.xml pointing at a different set of ZooKeepers you will see the behavior your experiencing.
On Mon, Sep 16, 2013 at 2:22 PM, Smith, Joshua D. <Jo...@gd-ais.com>> wrote:
What would cause a situation where Zookeeper shows Accumulo instances but Accumulo lists no instances?
Executing an ls /accumulo/instances using zkCli.sh I can see two instances listed.
Using bin/accumulo org.apache.accumulo.server.util.ListInstances I see none listed.
I'm running CDH4.3 and Accumulo 1.4.3.
Josh
Re: Disconnect between Accumulo instances seen by Zookeeper and Accumulo
Posted by John Vines <vi...@apache.org>.
Did you configure your zookeepers together in their zoo.cfg?
On Mon, Sep 16, 2013 at 3:05 PM, Smith, Joshua D.
<Jo...@gd-ais.com>wrote:
> Thanks John.****
>
> ** **
>
> I confirmed that all of my accumulo-site.xml files have the same list of
> Zookeeper instances for instance.zookeeper.host. So that led me to wonder
> about consistency. I decided to see if all of the Zookeeper nodes match.
> They don’t.****
>
> ** **
>
> Two of the zookeeper nodes do not have any /accumulo path. One does. So
> Accumulo must be answering based on one or both of the Zookeeper nodes that
> do not have a /accumulo path and not based on the one with the path. I’m
> not sure how Zookeeper got into this state. Any ideas on how to fix it?***
> *
>
> ** **
>
> Thanks,****
>
> Josh****
>
> ** **
>
> *From:* John Vines [mailto:vines@apache.org]
> *Sent:* Monday, September 16, 2013 2:33 PM
> *To:* user@accumulo.apache.org
> *Subject:* Re: Disconnect between Accumulo instances seen by Zookeeper
> and Accumulo****
>
> ** **
>
> Using ListInstances uses the defined zookeepers from accumulo-site.xml. If
> you have accumulo-site.xml pointing at a different set of ZooKeepers you
> will see the behavior your experiencing.****
>
> ** **
>
> On Mon, Sep 16, 2013 at 2:22 PM, Smith, Joshua D. <Jo...@gd-ais.com>
> wrote:****
>
> What would cause a situation where Zookeeper shows Accumulo instances but
> Accumulo lists no instances?****
>
> ****
>
> Executing an ls /accumulo/instances using zkCli.sh I can see two instances
> listed.****
>
> Using bin/accumulo org.apache.accumulo.server.util.ListInstances I see
> none listed.****
>
> ****
>
> I’m running CDH4.3 and Accumulo 1.4.3.****
>
> ****
>
> Josh****
>
> ** **
>
RE: Disconnect between Accumulo instances seen by Zookeeper and
Accumulo
Posted by "Smith, Joshua D." <Jo...@gd-ais.com>.
Thanks John.
I confirmed that all of my accumulo-site.xml files have the same list of Zookeeper instances for instance.zookeeper.host. So that led me to wonder about consistency. I decided to see if all of the Zookeeper nodes match. They don't.
Two of the zookeeper nodes do not have any /accumulo path. One does. So Accumulo must be answering based on one or both of the Zookeeper nodes that do not have a /accumulo path and not based on the one with the path. I'm not sure how Zookeeper got into this state. Any ideas on how to fix it?
Thanks,
Josh
From: John Vines [mailto:vines@apache.org]
Sent: Monday, September 16, 2013 2:33 PM
To: user@accumulo.apache.org
Subject: Re: Disconnect between Accumulo instances seen by Zookeeper and Accumulo
Using ListInstances uses the defined zookeepers from accumulo-site.xml. If you have accumulo-site.xml pointing at a different set of ZooKeepers you will see the behavior your experiencing.
On Mon, Sep 16, 2013 at 2:22 PM, Smith, Joshua D. <Jo...@gd-ais.com>> wrote:
What would cause a situation where Zookeeper shows Accumulo instances but Accumulo lists no instances?
Executing an ls /accumulo/instances using zkCli.sh I can see two instances listed.
Using bin/accumulo org.apache.accumulo.server.util.ListInstances I see none listed.
I'm running CDH4.3 and Accumulo 1.4.3.
Josh
Re: Disconnect between Accumulo instances seen by Zookeeper and Accumulo
Posted by John Vines <vi...@apache.org>.
Using ListInstances uses the defined zookeepers from accumulo-site.xml. If
you have accumulo-site.xml pointing at a different set of ZooKeepers you
will see the behavior your experiencing.
On Mon, Sep 16, 2013 at 2:22 PM, Smith, Joshua D.
<Jo...@gd-ais.com>wrote:
> What would cause a situation where Zookeeper shows Accumulo instances
> but Accumulo lists no instances?****
>
> ** **
>
> Executing an ls /accumulo/instances using zkCli.sh I can see two instances
> listed.****
>
> Using bin/accumulo org.apache.accumulo.server.util.ListInstances I see
> none listed.****
>
> ** **
>
> I’m running CDH4.3 and Accumulo 1.4.3.****
>
> ** **
>
> Josh****
>