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https://issues.apache.org/jira/browse/SOLR-1912?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chris Harris updated SOLR-1912:
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Attachment: SOLR-1912.patch
> Replication handler should offer more useful status messages, especially
> during fsync/commit/etc.
> -------------------------------------------------------------------------------------------------
>
> Key: SOLR-1912
> URL: https://issues.apache.org/jira/browse/SOLR-1912
> Project: Solr
> Issue Type: Improvement
> Components: replication (java)
> Affects Versions: 1.4
> Reporter: Chris Harris
> Attachments: SOLR-1912.patch
>
>
> If you go to the replication admin page
> (http://server:port/solr/core/admin/replication/index.jsp) while replication
> is in progress, then you'll see a "Current Replication Status" section, which
> indicates how far along the replication download is, both overall and for the
> current file. It's great to see this status info. However, the replication
> admin page becomes misleading once the last file has been downloaded. In
> particular, after all downloads are complete Solr 1.4 continues to display
> things like this:
> {quote}
> Downloading File: _wv_1.del, Downloaded: 44 bytes / 44 bytes [100.0%]
> {quote}
> until all the index copying, fsync-ing, committing, and so on are complete.
> It gives the disconcerting impression that data transfer between master and
> slaves has mysteriously stalled right at the end of a 44 byte download. In
> case this is weird, let me mention that after a full replication I did just
> now, Solr spent quite a while in SnapPuller.terminateAndWaitFsyncService(),
> somewhere between many seconds and maybe 5 minutes.
> I propose that the admin page should offer more useful status messages while
> fsync/etc. are going on. I offer an initial patch that does this. SnapPuller
> is modified to always offer a human readable indication of the "current
> operation", and this is displayed on the replication page. We also stop
> showing progress indication for the "current file", except when there
> actually is a file currently being downloaded.
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