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From Sean Busbey <bus...@cloudera.com>
Subject Re: Communication issue between zookeeper and accumulo
Date Tue, 06 Aug 2013 17:35:07 GMT
Is that on the ZK server or the TabletServer? Can we also see the other?


On Tue, Aug 6, 2013 at 10:33 AM, Ray Pfaff <ray.pfaff@apx-labs.com> wrote:

>  Chain INPUT (policy ACCEPT)
> target     prot opt source               destination
> ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:ssh
> ACCEPT     icmp --  anywhere             anywhere            icmp
> echo-reply
> ACCEPT     icmp --  anywhere             anywhere            icmp
> echo-request
> ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:nrpe
> ACCEPT     udp  --  anywhere             anywhere            udp
> dpt:domain
>
>  Chain FORWARD (policy DROP)
> target     prot opt source               destination
>
>  Chain OUTPUT (policy ACCEPT)
> target     prot opt source               destination
>
>   From: Brendan Heussler <bheussler@gmail.com>
> Reply-To: "user@accumulo.apache.org" <user@accumulo.apache.org>
> Date: Tuesday, August 6, 2013 1:27 PM
> To: "user@accumulo.apache.org" <user@accumulo.apache.org>
>
> Subject: Re: Communication issue between zookeeper and accumulo
>
>   What is the output of iptables --list?
>
>
>
> Brendan
>
>
> On Tue, Aug 6, 2013 at 1:25 PM, Ray Pfaff <ray.pfaff@apx-labs.com> wrote:
>
>>  Not sure what you mean.  I get the error "Fatal ip6_tables not found."
>>  I'm assuming that means disabled?
>>
>>   From: <Ott>, "Charles H." <CHARLES.H.OTT@saic.com>
>> Reply-To: "user@accumulo.apache.org" <user@accumulo.apache.org>
>> Date: Tuesday, August 6, 2013 1:18 PM
>> To: "user@accumulo.apache.org" <user@accumulo.apache.org>
>> Subject: RE: Communication issue between zookeeper and accumulo
>>
>>   And iptables?****
>>
>> ** **
>>
>> *From:* user-return-2837-CHARLES.H.OTT=saic.com@accumulo.apache.org [
>> mailto:user-return-2837-CHARLES.H.OTT=saic.com@accumulo.apache.org<user-return-2837-CHARLES.H.OTT=saic.com@accumulo.apache.org>]
>> *On Behalf Of *Ray Pfaff
>> *Sent:* Tuesday, August 06, 2013 12:54 PM
>> *To:* user@accumulo.apache.org
>> *Subject:* Re: Communication issue between zookeeper and accumulo****
>>
>> ** **
>>
>> Yes, it is disabled, so that's not the problem.****
>>
>> ** **
>>
>> *From: *Sean Busbey <busbey@cloudera.com>
>> *Reply-To: *"user@accumulo.apache.org" <user@accumulo.apache.org>
>> *Date: *Tuesday, August 6, 2013 12:48 PM
>> *To: *Accumulo User List <user@accumulo.apache.org>
>> *Subject: *Re: Communication issue between zookeeper and accumulo****
>>
>> ** **
>>
>> Hi Ray! ****
>>
>> ** **
>>
>> Can you confirm that IPv6 is disabled?****
>>
>> ** **
>>
>> On Tue, Aug 6, 2013 at 9:19 AM, Ray Pfaff <ray.pfaff@apx-labs.com> wrote:
>> ****
>>
>> I'm not sure if I can provide those due to the contract I'm working.  I
>> really don't want to diverge this conversation from the original question
>> I'm asking (which is a problem even running one tablet server per machine)
>> but are you saying that setting tserver.port.search = true shouldn't be
>> done?  I found this to be an undocumented way of running more than one
>> tablet server per system.  I'm still not convinced that this leads to
>> stability issues on tablet servers.  As I said, it's undocumented.****
>>
>> ** **
>>
>> *From: *Eric Newton <eric.newton@gmail.com>
>> *Reply-To: *"user@accumulo.apache.org" <user@accumulo.apache.org>****
>>
>> *Date: *Tuesday, August 6, 2013 11:12 AM ****
>>
>>
>> *To: *"user@accumulo.apache.org" <user@accumulo.apache.org>
>> *Subject: *Re: Communication issue between zookeeper and accumulo****
>>
>> ** **
>>
>> Interesting.  You could not get similar performance improvements by
>> increasing the size of the JVM, the number of threads, or the number of
>> tablets per server? ****
>>
>> ** **
>>
>> If you have details about what configurations you've tried and the
>> performance numbers you found, please open a ticket.  This would indicate
>> that we have some unnecessary bottleneck in the tserver.****
>>
>> ** **
>>
>> -Eric****
>>
>> ** **
>>
>> ** **
>>
>> On Tue, Aug 6, 2013 at 11:00 AM, Ray Pfaff <ray.pfaff@apx-labs.com>
>> wrote:****
>>
>> Because we found this to be the optimal number of tablet servers in our
>> testing.  It performs better than one per machine.  I'm not convinced that
>> the stability issues make it worthwhile.****
>>
>> Doesn't affect my problem anyway.  I get this error whether I run one or
>> four tablet servers.  Running four just makes it a bigger issue to get back
>> up after failure.****
>>
>> ** **
>>
>> *From: *Eric Newton <eric.newton@gmail.com>
>> *Reply-To: *"user@accumulo.apache.org" <user@accumulo.apache.org>
>> *Date: *Tuesday, August 6, 2013 10:56 AM
>> *To: *"user@accumulo.apache.org" <user@accumulo.apache.org>
>> *Subject: *Re: Communication issue between zookeeper and accumulo****
>>
>> ** **
>>
>> ** **
>>
>>  I'm running 4 tservers per machine dedicated to the tablet servers****
>>
>>  ** **
>>
>> Why?****
>>
>> ** **
>>
>> ** **
>>
>>
>>
>> ****
>>
>> ** **
>>
>> -- ****
>>
>> Sean****
>>
>
>


-- 
Sean

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