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From Sean Busbey <bus...@cloudera.com>
Subject Re: Communication issue between zookeeper and accumulo
Date Wed, 07 Aug 2013 23:25:39 GMT
Can you post the full logs from the tablet servers somewhere and send a
link?



On Tue, Aug 6, 2013 at 10:40 AM, Ray Pfaff <ray.pfaff@apx-labs.com> wrote:

>  It's from one of the tablet servers, but looking at one of the zookeeper
> servers, it's exactly the same
>
>   From: Sean Busbey <busbey@cloudera.com>
> Reply-To: "user@accumulo.apache.org" <user@accumulo.apache.org>
> Date: Tuesday, August 6, 2013 1:35 PM
>
> To: Accumulo User List <user@accumulo.apache.org>
> Subject: Re: Communication issue between zookeeper and accumulo
>
>   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

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