Gregg Donovan created SOLR-4380:
-----------------------------------
Summary: ReplicationHandler replicateAfter startup not showing
commits after SOLR-3911
Key: SOLR-4380
URL: https://issues.apache.org/jira/browse/SOLR-4380
Project: Solr
Issue Type: Bug
Components: replication (java)
Affects Versions: 4.1, 4.0
Reporter: Gregg Donovan
In the process of upgrading to 4.1 from 3.6, I've noticed that our
master servers do not show any commit points -- e.g. via
http://127.0.0.1:8983/solr/collection1/replication?command=commits -- available
until after a
new commit happens. So, for static indexes, replication doesn't happen
and for dynamic indexes, we have to wait until an incremental update
of master for slaves to see any commits.
Tracing through the code, it looks like the change that may have
effected us was part of
[SOLR-3911|https://issues.apache.org/jira/browse/SOLR-3911], specifically
commenting out the
initialization of the newIndexWriter in the [replicateAfterStartup
block [1]:
{code:java}
// TODO: perhaps this is no longer necessary then?
// core.getUpdateHandler().newIndexWriter(true);
{code}
I'm guessing this is commented out because it is assumed that
indexCommitPoint was going to be set by that block, but when a slave
requests commits, that goes back to
core.getDeletionPolicy().getCommits() to fetch the list of commits. If
no indexWriter has been initialized, then, as far as I can tell,
IndexDeletionPolicyWrapper#onInit will not have been called and there
will be no commits available.
By uncommenting this line, I was able to see commits on startup and slaves
began to replicate successfully.
[1]
http://svn.apache.org/viewvc/lucene/dev/branches/branch_4x/solr/core/src/java/org/apache/solr/handler/ReplicationHandler.java?annotate=1420992&diff_format=h&pathrev=1420992#l880
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org
For additional commands, e-mail: dev-h...@lucene.apache.org
