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https://issues.apache.org/jira/browse/NUTCH-1352?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13271069#comment-13271069
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Hudson commented on NUTCH-1352:
-------------------------------
Integrated in Nutch-nutchgora #248 (See
[https://builds.apache.org/job/Nutch-nutchgora/248/])
NUTCH-1352 Improve regex urlfilters/normalizers synchronization (Revision
1335066)
Result = SUCCESS
ferdy :
Files :
* /nutch/branches/nutchgora/CHANGES.txt
*
/nutch/branches/nutchgora/src/plugin/lib-regex-filter/src/java/org/apache/nutch/urlfilter/api/RegexRule.java
*
/nutch/branches/nutchgora/src/plugin/lib-regex-filter/src/java/org/apache/nutch/urlfilter/api/RegexURLFilterBase.java
*
/nutch/branches/nutchgora/src/plugin/urlfilter-regex/src/java/org/apache/nutch/urlfilter/regex/RegexURLFilter.java
*
/nutch/branches/nutchgora/src/plugin/urlnormalizer-basic/src/java/org/apache/nutch/net/urlnormalizer/basic/BasicURLNormalizer.java
*
/nutch/branches/nutchgora/src/plugin/urlnormalizer-regex/src/java/org/apache/nutch/net/urlnormalizer/regex/RegexURLNormalizer.java
> Improve regex urlfilters/normalizers synchronization
> ----------------------------------------------------
>
> Key: NUTCH-1352
> URL: https://issues.apache.org/jira/browse/NUTCH-1352
> Project: Nutch
> Issue Type: Improvement
> Reporter: Ferdy Galema
> Fix For: nutchgora, 1.6
>
> Attachments: NUTCH-1352-1.6-1.patch, NUTCH-1352.patch
>
>
> I noticed that during fetching a lot of the time the fetcherthreads are
> blocking on a monitor because of outlink normalizing/filtering. The cause of
> this: Some of the regex plugins use single lock synchronization.
> This patch improves throughput by removing synchronization locks and replace
> them with threadlocals were needed.
> It has been extensively tested in production. I will commit this later today
> when no objection.
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