Hello everyone!
I have been doing some tests, but it seems I can't make the
synchronize flag work.
I have made two tests:
1) DIH with commit=false
2) DIH with commit=false + commit via Solr XML update protocol
And here are the log results:
For (1) the command is
"/solr/dataimport?command=delta-import&commit=false&synchronous=true"
and the first part of the output is:
Dec 8, 2010 4:42:51 PM org.apache.solr.core.SolrCore execute
INFO: [] webapp=/solr path=/dataimport params={command=status} status=0 QTime=0
Dec 8, 2010 4:42:51 PM org.apache.solr.core.SolrCore execute
INFO: [] webapp=/solr path=/dataimport
params={schema=testproject&dbHost=127.0.0.1&dbPassword=fuz10n!&dbName=fzm&commit=false&dbUser=fzm&command=delta-import&projectId=1&synchronous=true&dbPort=5432}
status=0 QTime=4
Dec 8, 2010 4:42:51 PM org.apache.solr.handler.dataimport.DataImporter
doDeltaImport
INFO: Starting Delta Import
Dec 8, 2010 4:42:51 PM org.apache.solr.handler.dataimport.SolrWriter
readIndexerProperties
INFO: Read dataimport.properties
Dec 8, 2010 4:42:51 PM org.apache.solr.handler.dataimport.DocBuilder doDelta
INFO: Starting delta collection.
Dec 8, 2010 4:42:51 PM org.apache.solr.handler.dataimport.DocBuilder
collectDelta
For (2) the commands are
"/solr/dataimport?command=delta-import&commit=false&synchronous=true"
and "/solr/update?commit=true&waitFlush=true&waitSearcher=true" and
the first part of the output is:
Dec 8, 2010 4:22:50 PM org.apache.solr.core.SolrCore execute
INFO: [] webapp=/solr path=/dataimport params={command=status} status=0 QTime=0
Dec 8, 2010 4:22:50 PM org.apache.solr.core.SolrCore execute
INFO: [] webapp=/solr path=/dataimport
params={schema=testproject&dbHost=127.0.0.1&dbPassword=fuz10n!&dbName=fzm&commit=false&dbUser=fzm&command=delta-import&projectId=1&synchronous=true&dbPort=5432}
status=0 QTime=1
Dec 8, 2010 4:22:50 PM org.apache.solr.core.SolrCore execute
INFO: [] webapp=/solr path=/dataimport params={command=status} status=0 QTime=0
Dec 8, 2010 4:22:50 PM org.apache.solr.handler.dataimport.DataImporter
doDeltaImport
INFO: Starting Delta Import
Dec 8, 2010 4:22:50 PM org.apache.solr.handler.dataimport.SolrWriter
readIndexerProperties
INFO: Read dataimport.properties
Dec 8, 2010 4:22:50 PM org.apache.solr.update.DirectUpdateHandler2 commit
INFO: start
commit(optimize=false,waitFlush=true,waitSearcher=true,expungeDeletes=false)
In (2) it seems like the commit is being fired before the delta-update finishes.
Am I using the "synchronous" flag right?
Thanks in advance!
Juan M.
On Mon, Dec 6, 2010 at 6:46 PM, Juan Manuel Alvarez <naici...@gmail.com> wrote:
> Thanks for all the help! It is really appreciated.
>
> For now, I can afford the parallel requests problem, but when I put
> synchronous=true in the delta import, the call still returns with
> outdated items.
> Examining the log, it seems that the commit operation is being
> executed after the operation returns, even when I am using
> commit=true.
> Is it possible to also execute the commit synchronously?
>
> Cheers!
> Juan M.
>
> On Mon, Dec 6, 2010 at 4:29 PM, Alexey Serba <ase...@gmail.com> wrote:
>>> When you say "two parallel requests from two users to single DIH
>>> request handler", what do you mean by "request handler"?
>> I mean DIH.
>>
>>> Are you
>>> refering to the HTTP request? Would that mean that if I make the
>>> request from different HTTP sessions it would work?
>> No.
>>
>> It means that when you have two users that simultaneously changed two
>> objects in the UI then you have two HTTP requests to DIH to pull
>> changes from the db into Solr index. If the second request comes when
>> the first is not fully processed then the second request will be
>> rejected. As a result your index would be outdated (w/o the latest
>> update) until the next update.
>>
>
