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Posted to dev@lucene.apache.org by "Mikhail Khludnev (JIRA)" <ji...@apache.org> on 2017/01/19 17:29:27 UTC
[jira] [Updated] (SOLR-9983)
TestManagedSchemaThreadSafety.testThreadSafety() failures
[ https://issues.apache.org/jira/browse/SOLR-9983?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Mikhail Khludnev updated SOLR-9983:
-----------------------------------
Attachment: SOLR-9983.patch
[^SOLR-9983.patch]
_Public Morozov_ to rescue! (as we call this pattern).
> TestManagedSchemaThreadSafety.testThreadSafety() failures
> ---------------------------------------------------------
>
> Key: SOLR-9983
> URL: https://issues.apache.org/jira/browse/SOLR-9983
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: Schema and Analysis
> Affects Versions: master (7.0)
> Reporter: Steve Rowe
> Attachments: SOLR-9983.patch
>
>
> I set up a Jenkins job to hammer all tests on the {{jira/solr-5944}} branch, and at least four times this test failed (none of the seeds reproduce for me): [http://jenkins.sarowe.net/job/Solr-tests-SOLR-5944/155/], [http://jenkins.sarowe.net/job/Solr-tests-SOLR-5944/167/], [http://jenkins.sarowe.net/job/Solr-tests-SOLR-5944/106/], [http://jenkins.sarowe.net/job/Solr-tests-SOLR-5944/332/]. My email search didn't turn up any failures on ASF or Policeman Jenkins. Here's the output from one of the above runs:
> {noformat}
> [junit4] 2> NOTE: reproduce with: ant test -Dtestcase=TestManagedSchemaThreadSafety -Dtests.method=testThreadSafety -Dtests.seed=3DB2B79301AA806B -Dtests.slow=true -Dtests.locale=lt -Dtests.timezone=Asia/Anadyr -Dtests.asserts=true -Dtests.file.encoding=US-ASCII
> [junit4] ERROR 4.37s J4 | TestManagedSchemaThreadSafety.testThreadSafety <<<
> [junit4] > Throwable #1: java.util.concurrent.ExecutionException: java.lang.RuntimeException: org.apache.solr.common.SolrException: Error loading solr config from solrconfig.xml
> [junit4] > at __randomizedtesting.SeedInfo.seed([3DB2B79301AA806B:A7F8A3CBD235329D]:0)
> [junit4] > at java.util.concurrent.FutureTask.report(FutureTask.java:122)
> [junit4] > at java.util.concurrent.FutureTask.get(FutureTask.java:192)
> [junit4] > at org.apache.solr.schema.TestManagedSchemaThreadSafety.testThreadSafety(TestManagedSchemaThreadSafety.java:126)
> [junit4] > at java.lang.Thread.run(Thread.java:745)
> [junit4] > Caused by: java.lang.RuntimeException: org.apache.solr.common.SolrException: Error loading solr config from solrconfig.xml
> [junit4] > at org.apache.solr.schema.TestManagedSchemaThreadSafety.lambda$indexSchemaLoader$0(TestManagedSchemaThreadSafety.java:159)
> [junit4] > at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> [junit4] > at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> [junit4] > at org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:229)
> [junit4] > at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> [junit4] > at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> [junit4] > ... 1 more
> [junit4] > Caused by: org.apache.solr.common.SolrException: Error loading solr config from solrconfig.xml
> [junit4] > at org.apache.solr.core.SolrConfig.readFromResourceLoader(SolrConfig.java:187)
> [junit4] > at org.apache.solr.schema.TestManagedSchemaThreadSafety.lambda$indexSchemaLoader$0(TestManagedSchemaThreadSafety.java:152)
> [junit4] > ... 6 more
> [junit4] > Caused by: java.lang.NullPointerException
> [junit4] > at org.apache.solr.cloud.ZkSolrResourceLoader.openResource(ZkSolrResourceLoader.java:99)
> [junit4] > at org.apache.solr.core.SolrResourceLoader.openConfig(SolrResourceLoader.java:361)
> [junit4] > at org.apache.solr.core.Config.<init>(Config.java:120)
> [junit4] > at org.apache.solr.core.Config.<init>(Config.java:90)
> [junit4] > at org.apache.solr.core.SolrConfig.<init>(SolrConfig.java:202)
> [junit4] > at org.apache.solr.core.SolrConfig.readFromResourceLoader(SolrConfig.java:179)
> [junit4] > ... 7 more
> {noformat}
> Looks to me like this is a test bug: the test mocks {{ZkController}}, but the mock returns null for (the uninitialized {{cc}} returned by) {{getCoreContainer()}}, which is called when the ZK session expires in {{ZkSolrResourceLoader.openResource()}}. The NPE is triggered when {{isShutdown()}} is called on the null core container:
> {code:java|title=ZkSolrResourceLoader.java}
> 97: } catch (KeeperException.SessionExpiredException e) {
> 98: exception = e;
> 99: if (!zkController.getCoreContainer().isShutDown()) {
> 100: // Retry in case of session expiry
> {code}
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