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https://issues.apache.org/jira/browse/AMBARI-20819?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15981622#comment-15981622
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Hudson commented on AMBARI-20819:
---------------------------------
FAILURE: Integrated in Jenkins build Ambari-trunk-Commit #7345 (See
[https://builds.apache.org/job/Ambari-trunk-Commit/7345/])
AMBARI-20819. LogSearch Integration should limit requests to portal for
(rnettleton:
[http://git-wip-us.apache.org/repos/asf?p=ambari.git&a=commit&h=8c039bbc20d7a66fc46f62e5c1d2d690171b667e])
* (edit)
ambari-server/src/test/java/org/apache/ambari/server/controller/logging/LogSearchDataRetrievalServiceTest.java
* (edit)
ambari-server/src/main/java/org/apache/ambari/server/controller/logging/LogSearchDataRetrievalService.java
> LogSearch Integration should limit requests to portal for missing components
> ----------------------------------------------------------------------------
>
> Key: AMBARI-20819
> URL: https://issues.apache.org/jira/browse/AMBARI-20819
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server
> Affects Versions: 2.5.0
> Reporter: Robert Nettleton
> Assignee: Robert Nettleton
> Priority: Critical
> Fix For: 2.5.1
>
> Attachments: AMBARI-20819.patch
>
> Original Estimate: 72h
> Remaining Estimate: 72h
>
> The LogSearch Integration layer in Ambari typically caches logging metadata
> for each host/component combination in a given cluster. This cache is
> configurable, and is typically a long-lived cache, since the logging metadata
> is generally not likely to change.
> This issue was found during a test of LogSearch at a large scale, with a
> cluster of over 800 nodes.
> it was discovered that the LogSearch Integration layer continues to make
> repeated requests for logging metadata for components that are not properly
> configured in LogSearch.
> The LogSearch portal logs show the following repeated requests on the "Perf"
> cluster:
> {code}
> {"level":"INFO","file":"SolrDaoBase.java","thread_name":"qtp1018937824-280","line_number":61,"logger_name":"org.apache.ambari.logsearch.dao.SolrDaoBase","logtime":"1487951210778","log_message":"Solr
> query will be processed:
> q=*:*&start=0&rows=1&fq=host:perf\\-d\\-86.c.pramod\\-thangali.internal&fq=type:hst_agent&fq=logtime:[*+TO+*]&sort=logtime+desc,seq_num+desc"}
> {"level":"INFO","file":"SolrDaoBase.java","thread_name":"qtp1018937824-273","line_number":61,"logger_name":"org.apache.ambari.logsearch.dao.SolrDaoBase","logtime":"1487951210797","log_message":"Solr
> query will be processed:
> q=*:*&start=0&rows=1&fq=host:perf\\-k\\-24.c.pramod\\-thangali.internal&fq=type:hst_agent&fq=logtime:[*+TO+*]&sort=logtime+desc,seq_num+desc"}
> {"level":"INFO","file":"SolrDaoBase.java","thread_name":"qtp1018937824-275","line_number":61,"logger_name":"org.apache.ambari.logsearch.dao.SolrDaoBase","logtime":"1487951210810","log_message":"Solr
> query will be processed:
> q=*:*&start=0&rows=1&fq=host:perf\\-d\\-88.c.pramod\\-thangali.internal&fq=type:hst_agent&fq=logtime:[*+TO+*]&sort=logtime+desc,seq_num+desc"}
> {code}
> The SmartSense component, managed outside of Ambari, includes logging
> component IDs the SmartSense stack definition, but does not include the
> proper metadata to allow LogSearch Portal to properly handle the SmartSense
> logs.
> In the current implementation of the integration layer, since the SmartSense
> components are never found, the integration will repeatedly check the cache,
> fail that check, and attempt a remote call to obtain the metadata. This in
> turn can cause LogSearch to execute repeated, and un-necessary, queries
> against the Solr database, which could potentially be a problem in larger
> deployments.
> The LogSearch Integration in Ambari should be modified to have a maximum
> number of failed attempts to tolerate. Having passed a maximum number of
> failed attempts to obtain the logging metadata for a given component, the
> integration code should refrain from further attempts to contact the
> LogSearch portal for this component, and log a warning to indicate that the
> requested component is not properly handled by LogSearch.
> This will probably need to be fixed in:
> {code}org.apache.ambari.server.controller.logging.LogSearchDataRetrievalService{code}
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