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https://issues.apache.org/jira/browse/SOLR-11392?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16203010#comment-16203010
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Shalin Shekhar Mangar commented on SOLR-11392:
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bq. Notice this is looking for the "_n3" replica. What's odd about this is that
only two replicas where created for this collection
Joel, sorry for the late reply. Solr does not create replica numbers
sequentially anymore. This was done in SOLR-11011
> StreamExpressionTest.testParallelExecutorStream fails too frequently
> --------------------------------------------------------------------
>
> Key: SOLR-11392
> URL: https://issues.apache.org/jira/browse/SOLR-11392
> Project: Solr
> Issue Type: New Feature
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Joel Bernstein
>
> I've never been able to reproduce the failure but jenkins fails frequently
> with the following error:
> {code}
> Stack Trace:
> org.apache.solr.client.solrj.impl.CloudSolrClient$RouteException: Error from
> server at http://127.0.0.1:38180/solr/workQueue_shard2_replica_n3: Expected
> mime type application/octet-stream but got text/html. <html>
> <head>
> <meta http-equiv="Content-Type" content="text/html;charset=ISO-8859-1"/>
> <title>Error 404 </title>
> </head>
> <body>
> <h2>HTTP ERROR: 404</h2>
> <p>Problem accessing /solr/workQueue_shard2_replica_n3/update. Reason:
> <pre> Can not find: /solr/workQueue_shard2_replica_n3/update</pre></p>
> <hr /><a href="http://eclipse.org/jetty";>Powered by Jetty://
> 9.3.20.v20170531</a><hr/>
> </body>
> </html>
> {code}
> What appears to be happening is that the test framework is having trouble
> setting up the collection.
> Here is the test code:
> {code}
> @Test
> public void testParallelExecutorStream() throws Exception {
> CollectionAdminRequest.createCollection("workQueue", "conf", 2,
> 1).process(cluster.getSolrClient());
> AbstractDistribZkTestBase.waitForRecoveriesToFinish("workQueue",
> cluster.getSolrClient().getZkStateReader(),
> false, true, TIMEOUT);
> CollectionAdminRequest.createCollection("mainCorpus", "conf", 2,
> 1).process(cluster.getSolrClient());
> AbstractDistribZkTestBase.waitForRecoveriesToFinish("mainCorpus",
> cluster.getSolrClient().getZkStateReader(),
> false, true, TIMEOUT);
> CollectionAdminRequest.createCollection("destination", "conf", 2,
> 1).process(cluster.getSolrClient());
> AbstractDistribZkTestBase.waitForRecoveriesToFinish("destination",
> cluster.getSolrClient().getZkStateReader(),
> false, true, TIMEOUT);
> UpdateRequest workRequest = new UpdateRequest();
> UpdateRequest dataRequest = new UpdateRequest();
> for (int i = 0; i < 500; i++) {
> workRequest.add(id, String.valueOf(i), "expr_s", "update(destination,
> batchSize=50, search(mainCorpus, q=id:"+i+", rows=1, sort=\"id asc\",
> fl=\"id, body_t, field_i\"))");
> dataRequest.add(id, String.valueOf(i), "body_t", "hello world "+i,
> "field_i", Integer.toString(i));
> }
> workRequest.commit(cluster.getSolrClient(), "workQueue");
> dataRequest.commit(cluster.getSolrClient(), "mainCorpus");
> {code}
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