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From David Medinets <david.medin...@gmail.com>
Subject Re: Connection Refused Reading Instance Id From HDFS
Date Wed, 09 Jul 2014 16:20:55 GMT
I updated my accumulo-env.sh so that Accumulo uses IPV4. And now the shell
starts, I can create tables and insert entries. I can even view the monitor
page. However, the logs still show the connection refused error.




On Wed, Jul 9, 2014 at 10:38 AM, Sean Busbey <busbey@cloudera.com> wrote:

> This might be the same ipv6 issue that's causing your monitor failures.
>
> --
> Sean
> On Jul 9, 2014 9:13 AM, "David Medinets" <david.medinets@gmail.com> wrote:
>
> > I'm hoping someone has a few minutes to help debug this networking issue.
> > I'm running a single-node Accumulo 1.5.1 instance (using Hadoop 2.4)
> inside
> > Docker. I can find the Accumulo instance id manually:
> >
> > -bash-4.1# hdfs dfs -ls /accumulo/instance_id
> > Found 1 items
> > -rw-r--r--   1 accumulo accumulo          0 2014-07-09 08:22
> > /accumulo/instance_id/9421cd33-5f37-4f6d-b645-372feb431cae
> >
> > But when the gc tries to find the instance id, I see this message in the
> > log file:
> >
> > -bash-4.1# cat
> > /var/log/supervisor/accumulo-gc-stdout---supervisor-nwDCZU.log
> > 2014-07-09 09:04:07,006 [client.ZooKeeperInstance] ERROR: Problem reading
> > instance id out of hdfs at /accumulo/instance_id
> > java.net.ConnectException: Call From grail/172.17.0.2 to grail:8020
> failed
> > on connection exception: java.net.ConnectException: Connection refused;
> >
> > The hostname is 'grail' which resolves to 172.17.0.2 via /etc/hosts and
> it
> > can ping itself:
> >
> > david@zareason-verix545:~/projects/docker-builds/accumulo$
> > ./enter_image.sh
> > grail
> > -bash-4.1# ping grail
> > PING grail (172.17.0.2) 56(84) bytes of data.
> > 64 bytes from grail (172.17.0.2): icmp_seq=1 ttl=64 time=0.083 ms
> > 64 bytes from grail (172.17.0.2): icmp_seq=2 ttl=64 time=0.054 ms
> >
> > Do I need to use IP addresses in the 'gc' and other configuration files?
> >
> > Any ideas for me to try?
> >
> > When the NameNode starts, the log file has no errors. It starts with:
> >
> > STARTUP_MSG: Starting NameNode
> > STARTUP_MSG:   host = grail/172.17.0.2
> >
>

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