lucene-solr-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Fermin Silva <ferm...@olx.com>
Subject Re: Block until replication finishes
Date Tue, 01 Apr 2014 14:46:18 GMT
When trying to add the fix to the trunk version, I found that this was
already implemented.
There is a parameter '*wait*' that does exactly that.

if (solrParams.getBool(WAIT, false))
{
        puller.join();
}

So the only possible way to do this in SOLR 3.x is to create a plugin with
a new replication handler (which I did) or re-compile SOLR.


On Tue, Apr 1, 2014 at 10:02 AM, Fermin Silva <fermins@olx.com> wrote:

> The ReplicationHandler class is not the most exemplar code to be looking
> at.
> I found however the line that could be changed:
>
> new Thread() {
>         @Override
>         public void run() {
>           doFetch(paramsCopy);
>         }
>       }.start();
> rsp.add(STATUS, OK_STATUS);
>
> It should be really simple to join on that thread depending on a rest
> parameter.
> I would change that code myself (which I did to my custom SOLR
> installation) but I guess the fix should go for SOLR 4.x and not 3.x.
> Sorry but I have no clue about how to contribute with code. Will check
> that but if someone can point me to the right direction it would be nice.
>
> Thanks
>
>
> On Sat, Mar 29, 2014 at 9:49 AM, Mikhail Khludnev <
> mkhludnev@griddynamics.com> wrote:
>
>> Hello,
>> We did this for our fork, if you are not happy with "RESTful polling", or
>> think that the synchronous replication handler might be useful, please
>> raise a jira.
>>  27.03.2014 17:35 пользователь "Fermin Silva" <fermins@olx.com>
написал:
>>
>> > Hi,
>> >
>> > we are moving to native replication with SOLR 3.5.1.
>> > Because we want to control the replication from another program (a cron
>> > job), we decided to curl the slave to issue a fetchIndex command.
>> >
>> > The problem we have is that the curl returns immediately, while the
>> > replication still goes in the background.
>> > We need to know when the replication is done, and then resume the cron
>> job.
>> >
>> > Is there a way to block on the replication call until it's done similar
>> to
>> > waitForSearcher=true when committing ?
>> > If not, what other possibilities we have?
>> >
>> > Just in case, here is the solrconfig part in the slave (we pass
>> masterUrl
>> > in the curl url)
>> >
>> > <requestHandler name="/replication" class="solr.ReplicationHandler">
>> >     <lst name="slave">
>> >       <str name="masterUrl"></str>
>> >     </lst>
>> >   </requestHandler>
>> >
>> >
>> > Many thanks in advance
>> >
>> > --
>> > Fermin Silva
>> >
>>
>
>
>
> --
> Fermin Silva
> Speed & Scalability Team
>



-- 
Fermin Silva
Speed & Scalability Team

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message