Mailing-List: contact solr-user-help@lucene.apache.org; run by ezmlm
Precedence: bulk
Reply-To: solr-user@lucene.apache.org
Received-SPF: pass (nike.apache.org: domain of noble.paul@gmail.com designates
 209.85.216.202 as permitted sender)
DomainKey-Signature: a=rsa-sha1; c=nofws;
        d=gmail.com; s=gamma;
        h=mime-version:sender:reply-to:in-reply-to:references:from:date
         :x-google-sender-auth:message-id:subject:to:content-type
         :content-transfer-encoding;
        b=QA6CkJ2Xy8doc1CtsvRTi1IUeyHDlSIADlvTRzNvyWDghyFofJajEKCjgL0rHOG8Jw
         CmxpZAKcPs0DDIbnvvsk09RHONaI0Qy9FPMuznVZv1C/CmqxcjuLyeBRy1NKQADjPuIg
         bKIpETJtLQxiDwTX2lVLLKBjWt78BltGB59v0=
MIME-Version: 1.0
Sender: noble.paul@gmail.com
Reply-To: noble.paul@gmail.com
In-Reply-To: <SNT121-W23DEF87035E63CA9B275C380F60@phx.gbl>
References: <SNT121-W61D7DC32AF331CB0A1235F80F80@phx.gbl>
 <5e76b0ad0908252235y1cb838d8v17d84cc2806a18a1@mail.gmail.com>
	<SNT121-W2047D46A5C1455DBFEE9F280F70@phx.gbl>
 <5e76b0ad0908270034s6ac9ae3dob8dd0ec14504004a@mail.gmail.com>
	<SNT121-W23DEF87035E63CA9B275C380F60@phx.gbl>
From: 
 =?UTF-8?B?Tm9ibGUgUGF1bCDgtKjgtYvgtKzgtL/gtLPgtY3igI0gIOCkqOCli+CkrOCljeCks+CljQ==?=
 <noble.paul@corp.aol.com>
Date: Fri, 28 Aug 2009 10:33:18 +0530
Message-ID: <5e76b0ad0908272203m1038fddbr9b7fc026fb6d966c@mail.gmail.com>
Subject: Re: Solr Replication
To: solr-user@lucene.apache.org
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

Each instance has its own ReplicationHandler instance/MBean. I guess
the problem is with the jmx implementation. both MBeans may be
registered with the same name

On Fri, Aug 28, 2009 at 2:04 AM, J G<skinny_joey98@hotmail.com> wrote:
>
> We have multiple solr webapps all running from the same WAR file. Each we=
bapp is running under the same Tomcat container and I consider each webapp =
the same thing as a "slice" (or "instance"). I've configured the Tomcat con=
tainer to enable JMX and when I connect using JConsole I only see the repli=
cation handler for one of the webapps in the server. I was under the impres=
sion each webapp gets its own replication handler. Is this not true?
>
> It would be nice to be able to have a JMX MBean for each replication hand=
ler in the container so we can get all the same replication information usi=
ng JMX as in using the replication admin page for each web app.
>
> Thanks.
>
>
>
>
>
>> From: noble.paul@corp.aol.com
>> Date: Thu, 27 Aug 2009 13:04:38 +0530
>> Subject: Re: Solr Replication
>> To: solr-user@lucene.apache.org
>>
>> when you say a slice you mean one instance of solr? So your JMX
>> console is connecting to only one solr?
>>
>> On Thu, Aug 27, 2009 at 3:19 AM, J G<skinny_joey98@hotmail.com> wrote:
>> >
>> > Thanks for the response.
>> >
>> > It's interesting because when I run jconsole all I can see is one Repl=
icationHandler jmx mbean. It looks like it is defaulting to the first slice=
 it finds on its path. Is there anyway to have multiple replication handler=
s or at least obtain replication on a per "slice"/"instance" via JMX like h=
ow you can see attributes for each "slice"/"instance" via each replication =
admin jsp page?
>> >
>> > Thanks again.
>> >
>> >> From: noble.paul@corp.aol.com
>> >> Date: Wed, 26 Aug 2009 11:05:34 +0530
>> >> Subject: Re: Solr Replication
>> >> To: solr-user@lucene.apache.org
>> >>
>> >> The ReplicationHandler is not enforced as a singleton , but for all
>> >> practical purposes it is a singleton for one core.
>> >>
>> >> If an instance =A0(a slice as you say) is setup as a repeater, It can
>> >> act as both a master and slave
>> >>
>> >> in the repeater the configuration should be as follows
>> >>
>> >> MASTER
>> >> =A0 |_____________SLAVE (I am a slave of MASTER)
>> >> =A0 |
>> >> REPEATER (I am a slave of MASTER and master to my slaves )
>> >> =A0|
>> >> =A0|
>> >> REPEATER_SLAVE( of REPEATER)
>> >>
>> >>
>> >> the point is that REPEATER will have a slave section has a masterUrl
>> >> which points to master and REPEATER_SLAVE will have a slave section
>> >> which has a masterurl pointing to repeater
>> >>
>> >>
>> >>
>> >>
>> >>
>> >>
>> >> On Wed, Aug 26, 2009 at 12:40 AM, J G<skinny_joey98@hotmail.com> wrot=
e:
>> >> >
>> >> > Hello,
>> >> >
>> >> > We are running multiple slices in our environment. I have enabled J=
MX and I am inspecting the replication handler mbean to obtain some informa=
tion about the master/slave configuration for replication. Is the replicati=
on handler mbean a singleton? I only see one mbean for the entire server an=
d it's picking an arbitrary slice to report on. So I'm curious if every sli=
ce gets its own replication handler mbean? This is important because I have=
 no way of knowing in this specific server any information about the other =
slices, in particular, information about the master/slave value for the oth=
er slices.
>> >> >
>> >> > Reading through the Solr 1.4 replication strategy, I saw that a sli=
ce can be configured to be a master and a slave, i.e. a repeater. I'm wonde=
ring how repeaters work because let's say I have a slice named 'A' and the =
master is on server 1 and the slave is on server 2 then how are these two s=
ervers communicating to replicate? Looking at the jmx information I have in=
 the MBean both the isSlave and isMaster is set to true for my repeater so =
how does this solr slice know if it's the master or slave? I'm a bit confus=
ed.
>> >> >
>> >> > Thanks.
>> >> >
>> >> >
>> >> >
>> >> >
>> >> > _________________________________________________________________
>> >> > With Windows Live, you can organize, edit, and share your photos.
>> >> > http://www.windowslive.com/Desktop/PhotoGallery
>> >>
>> >>
>> >>
>> >> --
>> >> -----------------------------------------------------
>> >> Noble Paul | Principal Engineer| AOL | http://aol.com
>> >
>> > _________________________________________________________________
>> > Hotmail=AE is up to 70% faster. Now good news travels really fast.
>> > http://windowslive.com/online/hotmail?ocid=3DPID23391::T:WLMTAGL:ON:WL=
:en-US:WM_HYGN_faster:082009
>>
>>
>>
>> --
>> -----------------------------------------------------
>> Noble Paul | Principal Engineer| AOL | http://aol.com
>
> _________________________________________________________________
> With Windows Live, you can organize, edit, and share your photos.
> http://www.windowslive.com/Desktop/PhotoGallery


--=20
-----------------------------------------------------
Noble Paul | Principal Engineer| AOL | http://aol.com