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https://issues.apache.org/jira/browse/AMBARI-20378?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15905803#comment-15905803
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Hadoop QA commented on AMBARI-20378:
------------------------------------
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12857379/AMBARI-20378.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 7 new
or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 core tests{color}. The patch passed unit tests in
ambari-logsearch/ambari-logsearch-logfeeder ambari-server.
Test results:
https://builds.apache.org/job/Ambari-trunk-test-patch/10973//testReport/
Console output:
https://builds.apache.org/job/Ambari-trunk-test-patch/10973//console
This message is automatically generated.
> LogFeeder: Add de-duplication support
> -------------------------------------
>
> Key: AMBARI-20378
> URL: https://issues.apache.org/jira/browse/AMBARI-20378
> Project: Ambari
> Issue Type: Bug
> Components: ambari-logsearch
> Affects Versions: 2.5.0
> Reporter: Olivér Szabó
> Assignee: Olivér Szabó
> Fix For: trunk
>
> Attachments: AMBARI-20378.patch
>
>
> Add de-duplication support to logfeeder.
> For handling duplications, it will be an LRU cache for every input.
> It can be set up at logfeeder.properties (global setting). For example (the
> values below are the defaults):
> {code:java}
> logfeeder.cache.enabled=false
> logfeeder.cache.size=100
> logfeeder.cache.key.field=log_message
> logfeeder.cache.dedup.interval=1000
> logfeeder.cache.last.dedup.enabled=false
> {code}
> can be overriden in input config block (per monitored file)
> {code:java}
> {
> "input": [
> {
> ...
> "cache_enabled" : "true",
> "cache_size" : "100",
> "cache_dedup_interval" : "1000",
> "cache_last_dedup_enabled" : "false",
> "cache_key_field" : "log_message"
> }
> ] ...
> {code}
> {{cache_dedup_interval}} : if the interval (timestamp - date difference) is
> not reached between 2 log messages (same content), then the new log will be
> dropped.
> {{cache_last_dedup_enabled}}: if its enabled and the new log message is the
> same as the last one, the new log will be dropped. (dedup interval wont have
> impact on that feature)
> {{cache_key_field}} : field of the log message which will be compared and
> stored in the cache (as keys)
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