Hello fellow enthusiastic solr users,

 

I tried to find the answer to this simple question online, but failed.
I was wondering about this, what happens to uncommitted docsPending if I
stop solr and then restart solr?  Are they lost?  Are they still there
but still uncommitted?  Do they get committed at startup?  I noticed
after a restart my 250K pending doc count went to 0 is what got me
wondering.  

 

TIA!

Robi

(11/04/06 5:25), Robert Petersen wrote:
> I tried to find the answer to this simple question online, but failed.
> I was wondering about this, what happens to uncommitted docsPending if I
> stop solr and then restart solr?  Are they lost?  Are they still there
> but still uncommitted?  Do they get committed at startup?  I noticed
> after a restart my 250K pending doc count went to 0 is what got me
> wondering.

Robi,

Usually they are never lost, but they are committed.

When you stop Solr, servlet container (Jetty) calls servlets/filters
destroy() methods. This causes closing all SolrCores. Then SolrCore.close()
calls UpdateHandler.close(). It calls SolrIndexWriter.close(). Then
pending docs are flushed, then committed.

Koji
--
http://www.rondhuit.com/en/

Really?  Great!  I was wondering if there was some cleanup cycle like
that which would occur upon shutdown.  That sounds like much more
logical behavior!

-----Original Message-----
From: Koji Sekiguchi [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, April 06, 2011 4:03 PM
To: [EMAIL PROTECTED]
Subject: Re: what happens to docsPending if stop solr before commit

(11/04/06 5:25), Robert Petersen wrote:
> I tried to find the answer to this simple question online, but failed.
> I was wondering about this, what happens to uncommitted docsPending if
I
> stop solr and then restart solr?  Are they lost?  Are they still there
> but still uncommitted?  Do they get committed at startup?  I noticed
> after a restart my 250K pending doc count went to 0 is what got me
> wondering.

Robi,

Usually they are never lost, but they are committed.

When you stop Solr, servlet container (Jetty) calls servlets/filters
destroy() methods. This causes closing all SolrCores. Then
SolrCore.close()
calls UpdateHandler.close(). It calls SolrIndexWriter.close(). Then
pending docs are flushed, then committed.

Koji
--
http://www.rondhuit.com/en/

Hmmm, depends on how you stop the server, I was
assuming you did something radical like 'kill -9' (for SHAME <G>)
or the machine crashed or something else horrible...

Koji was covering graceful shutdown, thanks Koji! I hadn't
even considered that....

Erick

On Wed, Apr 6, 2011 at 7:19 PM, Robert Petersen <[EMAIL PROTECTED]> wrote:

> Really?  Great!  I was wondering if there was some cleanup cycle like
> that which would occur upon shutdown.  That sounds like much more
> logical behavior!
>
> -----Original Message-----
> From: Koji Sekiguchi [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, April 06, 2011 4:03 PM
> To: [EMAIL PROTECTED]
> Subject: Re: what happens to docsPending if stop solr before commit
>
> (11/04/06 5:25), Robert Petersen wrote:
> > I tried to find the answer to this simple question online, but failed.
> > I was wondering about this, what happens to uncommitted docsPending if
> I
> > stop solr and then restart solr?  Are they lost?  Are they still there
> > but still uncommitted?  Do they get committed at startup?  I noticed
> > after a restart my 250K pending doc count went to 0 is what got me
> > wondering.
>
> Robi,
>
> Usually they are never lost, but they are committed.
>
> When you stop Solr, servlet container (Jetty) calls servlets/filters
> destroy() methods. This causes closing all SolrCores. Then
> SolrCore.close()
> calls UpdateHandler.close(). It calls SolrIndexWriter.close(). Then
> pending docs are flushed, then committed.
>
> Koji
> --
> http://www.rondhuit.com/en/
>

They're lost, never to be seen again. You'll have to reindex them.

Best
Erick

On Tue, Apr 5, 2011 at 4:25 PM, Robert Petersen <[EMAIL PROTECTED]> wrote:

> Hello fellow enthusiastic solr users,
>
>
>
> I tried to find the answer to this simple question online, but failed.
> I was wondering about this, what happens to uncommitted docsPending if I
> stop solr and then restart solr?  Are they lost?  Are they still there
> but still uncommitted?  Do they get committed at startup?  I noticed
> after a restart my 250K pending doc count went to 0 is what got me
> wondering.
>
>
>
> TIA!
>
> Robi
>
>

Oh woe is me...  lol NP good to know.  I'll get them on the next go
'round.  :)

Thanks for the answer!

-----Original Message-----
From: Erick Erickson [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, April 06, 2011 6:05 AM
To: [EMAIL PROTECTED]
Subject: Re: what happens to docsPending if stop solr before commit

They're lost, never to be seen again. You'll have to reindex them.

Best
Erick

On Tue, Apr 5, 2011 at 4:25 PM, Robert Petersen <[EMAIL PROTECTED]>
wrote:

> Hello fellow enthusiastic solr users,
>
>
>
> I tried to find the answer to this simple question online, but failed.
> I was wondering about this, what happens to uncommitted docsPending if
I
> stop solr and then restart solr?  Are they lost?  Are they still there
> but still uncommitted?  Do they get committed at startup?  I noticed
> after a restart my 250K pending doc count went to 0 is what got me
> wondering.
>
>
>
> TIA!
>
> Robi
>
>