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Posted to user@accumulo.apache.org by Mike Hugo <mi...@piragua.com> on 2013/07/02 17:34:15 UTC
MiniAccumuloCluster IP address stored in ZooKeeper
Hello,
We've been using MiniAccumuloCluster for local development and testing and
it has been working fantastic. Really like having a lightweight mechanism
for testing things that's easy to get up and running quickly!
One issue we've run into is something that happens when we switch networks
and the IP address of our local machine changes. For example, if I start
up MAC in the office, do some work and persist some data, then go home for
the day, fire up my laptop (which now has a different IP address) - mini
accumulo cluster won't start because it's trying to connect to the IP
address I had when I was in the office.
I think I tracked it down to the fact that the IP Address is being stored
in Zookeeper for the tserver, e.g.
[zk: localhost:2181(CONNECTED) 15] ls
/accumulo/bd70fefd-c9c6-48e2-abe4-faa146a4965f/tservers
[10.10.10.55:9997]
Is there a way to get accumulo/zookeeper to store a host name or FQDN in
there instead of the ip address?
Thanks,
Mike
Re: MiniAccumuloCluster IP address stored in ZooKeeper
Posted by Mike Hugo <mi...@piragua.com>.
In case someone else runs into this: for our development purposes, we
found this solution to work - modify /etc/hosts and include this line:
127.0.0.1 COMPUTER_NAME_GOES_HERE.local
Mike
On Tue, Jul 2, 2013 at 10:56 AM, Eric Newton <er...@gmail.com> wrote:
> This IP address should not matter. The restarted tservers will make new
> entries in zookeeper.
>
> However, write-ahead log entries for the root tablet use the IP address of
> the tserver, and the write-ahead log entries in the !METADATA Table will
> prevent recovery from working.
>
> Feel free to open a ticket (and provide a patch :-).
>
> -Eric
>
>
>
> On Tue, Jul 2, 2013 at 11:34 AM, Mike Hugo <mi...@piragua.com> wrote:
>
>> Hello,
>>
>> We've been using MiniAccumuloCluster for local development and testing
>> and it has been working fantastic. Really like having a lightweight
>> mechanism for testing things that's easy to get up and running quickly!
>>
>> One issue we've run into is something that happens when we switch
>> networks and the IP address of our local machine changes. For example, if
>> I start up MAC in the office, do some work and persist some data, then go
>> home for the day, fire up my laptop (which now has a different IP address)
>> - mini accumulo cluster won't start because it's trying to connect to the
>> IP address I had when I was in the office.
>>
>> I think I tracked it down to the fact that the IP Address is being stored
>> in Zookeeper for the tserver, e.g.
>>
>> [zk: localhost:2181(CONNECTED) 15] ls
>> /accumulo/bd70fefd-c9c6-48e2-abe4-faa146a4965f/tservers
>> [10.10.10.55:9997]
>>
>> Is there a way to get accumulo/zookeeper to store a host name or FQDN in
>> there instead of the ip address?
>>
>> Thanks,
>>
>> Mike
>>
>
>
Re: MiniAccumuloCluster IP address stored in ZooKeeper
Posted by Eric Newton <er...@gmail.com>.
This IP address should not matter. The restarted tservers will make new
entries in zookeeper.
However, write-ahead log entries for the root tablet use the IP address of
the tserver, and the write-ahead log entries in the !METADATA Table will
prevent recovery from working.
Feel free to open a ticket (and provide a patch :-).
-Eric
On Tue, Jul 2, 2013 at 11:34 AM, Mike Hugo <mi...@piragua.com> wrote:
> Hello,
>
> We've been using MiniAccumuloCluster for local development and testing and
> it has been working fantastic. Really like having a lightweight mechanism
> for testing things that's easy to get up and running quickly!
>
> One issue we've run into is something that happens when we switch networks
> and the IP address of our local machine changes. For example, if I start
> up MAC in the office, do some work and persist some data, then go home for
> the day, fire up my laptop (which now has a different IP address) - mini
> accumulo cluster won't start because it's trying to connect to the IP
> address I had when I was in the office.
>
> I think I tracked it down to the fact that the IP Address is being stored
> in Zookeeper for the tserver, e.g.
>
> [zk: localhost:2181(CONNECTED) 15] ls
> /accumulo/bd70fefd-c9c6-48e2-abe4-faa146a4965f/tservers
> [10.10.10.55:9997]
>
> Is there a way to get accumulo/zookeeper to store a host name or FQDN in
> there instead of the ip address?
>
> Thanks,
>
> Mike
>