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https://issues.apache.org/jira/browse/SOLR-3273?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13238377#comment-13238377
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Mark Miller commented on SOLR-3273:
-----------------------------------
bq. adminPath="/admin/myapp"
Thats probably the issue - I think we assume /admin/cores or whatever the
default is.
> 404 Not Found on action=PREPRECOVERY
> ------------------------------------
>
> Key: SOLR-3273
> URL: https://issues.apache.org/jira/browse/SOLR-3273
> Project: Solr
> Issue Type: Bug
> Components: SolrCloud
> Affects Versions: 4.0
> Environment: Any
> Reporter: Per Steffensen
>
> We have an application based on a recent copy of 4.0-SNAPSHOT. We have a
> preformance test setup where we performance test our application (and
> therefore indirectly Solr(Cloud)). When we run the performance test against a
> setup using SolrCloud without replication, everything seems to run very
> nicely for days. When we add replication to the setup the same performance
> test shows some problems - which we will report (and maybe help fix) in
> distinct issues here in jira.
> About the setup - the setup is a little more complex than described below,
> but I believe the description will tell "enough":
> We have two solr servers which we start from <solr-install>/example using
> this command (ZooKeepers have been started before) - we first start solr on
> server1, and then starts solr on server2 after solr on server1 finished
> starting up:
> {code}
> nohup java -Xmx4096m -Dcom.sun.management.jmxremote
> -DzkHost=server1:2181,server2:2181,server3:2181
> -Dbootstrap_confdir=./myapp/conf -Dcollection.configName=myapp_conf
> -Dsolr.solr.home=./myapp -Djava.util.logging.config.file=logging.properties
> -jar start.jar >./myapp/logs/stdout.log 2>./myapp/logs/stderr.log &
> {code}
> The ./myapp/solr.xml looks like this on server1:
> {code:xml}
> <?xml version="1.0" encoding="UTF-8" ?>
> <solr persistent="false">
> <cores adminPath="/admin/myapp" host="server1" hostPort="8983"
> hostContext="solr">
> <core name="collA_slice1_shard1" instanceDir="."
> dataDir="collA_slice1_data" collection="collA" shard="slice1" />
> </cores>
> </solr>
> {code}
> The ./myapp/solr.xml looks like this on server2:
> {code:xml}
> <?xml version="1.0" encoding="UTF-8" ?>
> <solr persistent="false">
> <cores adminPath="/admin/myapp" host="server2" hostPort="8983"
> hostContext="solr">
> <core name="collA_slice1_shard2" instanceDir="."
> dataDir="collA_slice1_data" collection="collA" shard="slice1" />
> </cores>
> </solr>
> {code}
> The first thing we observe is that Solr server1 (running collA_slice1_shard1)
> seems to start up nicely, but when Solr server2 (running collA_slice1_shard2)
> is started up later it quickly reports the following in its solr.log an keeps
> doing that for a long time:
> {code}
> SEVERE: Error while trying to recover:org.apache.solr.common.SolrException:
> Not Found
> request:
> http://server1:8983/solr/admin/cores?action=PREPRECOVERY&core=collA_slice1_shard1&nodeName=server2%3A8983_solr&coreNodeName=server2%3A8983_solr_collA_slice1_shard2&state=recovering&checkLive=true&pauseFor=6000&wt=javabin&version=2
> at
> org.apache.solr.common.SolrExceptionPropagationHelper.decodeFromMsg(SolrExceptionPropagationHelper.java:40)
> at
> org.apache.solr.client.solrj.impl.CommonsHttpSolrServer.request(CommonsHttpSolrServer.java:445)
> at
> org.apache.solr.client.solrj.impl.CommonsHttpSolrServer.request(CommonsHttpSolrServer.java:264)
> at
> org.apache.solr.cloud.RecoveryStrategy.sendPrepRecoveryCmd(RecoveryStrategy.java:188)
> at
> org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:285)
> at
> org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:206)
> {code}
> Please note that we have changed a little bit in the way errors are logged,
> but basically this means that Solr server2 gets an "404 Not Found" on its
> request
> "http://server1:8983/solr/admin/cores?action=PREPRECOVERY&core=collA_slice1_shard1&nodeName=server2%3A8983_solr&coreNodeName=server2%3A8983_solr_collA_slice1_shard2&state=recovering&checkLive=true&pauseFor=6000&wt=javabin&version=2";
> to Solr server1.
> Seems like there is not a common agreement among the Solr servers on
> how/where to send those requests and how/where to listen for them.
> Regards, Per Steffensen
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