They are separate commits. ramBufferSizeMB controls when the underlying
Lucene IndexWriter flushes ram to disk (this isnt like the IndexWriter
commiting or closing). The solr autocommit controls when solr asks
IndexWriter to commit what its done so far.
Nguyen, Joe wrote:
Could <ramBufferSizeMB> trigger the commit in this case?
-----Original Message-----
From: Nickolai Toupikov [mailto:[EMAIL PROTECTED]
Sent: Wednesday, November 19, 2008 8:36 Joe
To: solr-user@lucene.apache.org
Subject: Question about autocommit
Hello,
I would like some details on the autocommit mechanism. I tried to search
the wiki, but found only the standard maxDoc/time settings.
i have set the autocommit parameters in solrconfig.xml to 8000 docs and
300000milis.
Indexing at around 200 docs per second (from multiple processes, using
the CommonsHttpSolrServer class), i would have expected autocommits to
occur around every 40 seconds, however the jvm log shows the following
- sometimes more than two calls per second:
$ tail -f jvm-default.log | grep "commit"
[16:18:15.862] {pool-2-thread-1} start
commit(optimize=false,waitFlush=true,waitSearcher=true)
[16:18:16.788] {pool-2-thread-1} end_commit_flush [16:18:21.721]
{pool-2-thread-1} start
commit(optimize=false,waitFlush=true,waitSearcher=true)
[16:18:22.073] {pool-2-thread-1} end_commit_flush [16:18:36.047]
{pool-2-thread-1} start
commit(optimize=false,waitFlush=true,waitSearcher=true)
[16:18:36.468] {pool-2-thread-1} end_commit_flush [16:18:36.886]
{pool-2-thread-1} start
commit(optimize=false,waitFlush=true,waitSearcher=true)
[16:18:37.017] {pool-2-thread-1} end_commit_flush [16:18:37.867]
{pool-2-thread-1} start
commit(optimize=false,waitFlush=true,waitSearcher=true)
[16:18:38.448] {pool-2-thread-1} end_commit_flush [16:18:44.375]
{pool-2-thread-1} start
commit(optimize=false,waitFlush=true,waitSearcher=true)
[16:18:47.016] {pool-2-thread-1} end_commit_flush [16:18:47.154]
{pool-2-thread-1} start
commit(optimize=false,waitFlush=true,waitSearcher=true)
[16:18:47.287] {pool-2-thread-1} end_commit_flush [16:18:50.399]
{pool-2-thread-1} start
commit(optimize=false,waitFlush=true,waitSearcher=true)
[16:18:51.283] {pool-2-thread-1} end_commit_flush [16:19:13.782]
{pool-2-thread-1} start
commit(optimize=false,waitFlush=true,waitSearcher=true)
[16:19:14.664] {pool-2-thread-1} end_commit_flush [16:19:15.081]
{pool-2-thread-1} start
commit(optimize=false,waitFlush=true,waitSearcher=true)
[16:19:15.215] {pool-2-thread-1} end_commit_flush [16:19:15.357]
{pool-2-thread-1} start
commit(optimize=false,waitFlush=true,waitSearcher=true)
[16:19:15.955] {pool-2-thread-1} end_commit_flush [16:19:16.421]
{pool-2-thread-1} start
commit(optimize=false,waitFlush=true,waitSearcher=true)
[16:19:19.791] {pool-2-thread-1} end_commit_flush [16:19:50.594]
{pool-2-thread-1} start
commit(optimize=false,waitFlush=true,waitSearcher=true)
[16:19:52.098] {pool-2-thread-1} end_commit_flush [16:19:52.236]
{pool-2-thread-1} start
commit(optimize=false,waitFlush=true,waitSearcher=true)
[16:19:52.368] {pool-2-thread-1} end_commit_flush [16:19:52.917]
{pool-2-thread-1} start
commit(optimize=false,waitFlush=true,waitSearcher=true)
[16:19:53.479] {pool-2-thread-1} end_commit_flush [16:19:54.920]
{pool-2-thread-1} start
commit(optimize=false,waitFlush=true,waitSearcher=true)
[16:19:55.079] {pool-2-thread-1} end_commit_flush
additionally, in the solr admin page , the update handler reports as
many autocommits as commits - so i assume it is not some commit(); line
lost in my code.
I actually get the feeling that the commits are triggered more and more
often - with not-so-nice influence on indexing speed over time.
Restarting resin seems to get the commit rate to the original level.
Optimizing has no effect.
Is there some other parameter influencing autocommit?
Thank you very much.
Nickolai
