[
https://issues.apache.org/jira/browse/SOLR-9983?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15843309#comment-15843309
]
Steve Rowe commented on SOLR-9983:
----------------------------------
My Jenkins had a failure:
[http://jenkins.sarowe.net/job/Lucene-Solr-tests-master/9459/]:
{noformat}
[junit4] 2> NOTE: reproduce with: ant test
-Dtestcase=TestManagedSchemaThreadSafety -Dtests.method=testThreadSafety
-Dtests.seed=932CA88E4A647823 -Dtests.slow=true -Dtests.locale=pl
-Dtests.timezone=Brazil/Acre -Dtests.asserts=true -Dtests.file.encoding=UTF-8
[junit4] ERROR 4.28s J6 | 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([932CA88E4A647823:966BCD699FBCAD5]: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
[junit4] 2> 565162 INFO
(SUITE-TestManagedSchemaThreadSafety-seed#[932CA88E4A647823]-worker) [ ]
o.a.s.c.ZkTestServer connecting to 127.0.0.1:52297 52297
[junit4] 2> 565318 INFO (Thread-1704) [ ] o.a.s.c.ZkTestServer
connecting to 127.0.0.1:52297 52297
[junit4] 2> 565318 INFO
(SUITE-TestManagedSchemaThreadSafety-seed#[932CA88E4A647823]-worker) [ ]
o.a.s.SolrTestCaseJ4 ###deleteCore
[junit4] 2> NOTE: leaving temporary files on disk at:
/var/lib/jenkins/jobs/Lucene-Solr-tests-master/workspace/solr/build/solr-core/test/J6/temp/solr.schema.TestManagedSchemaThreadSafety_932CA88E4A647823-001
[junit4] 2> NOTE: test params are: codec=CheapBastard,
sim=RandomSimilarity(queryNorm=true): {}, locale=pl, timezone=Brazil/Acre
[junit4] 2> NOTE: Linux 4.1.0-custom2-amd64 amd64/Oracle Corporation
1.8.0_77 (64-bit)/cpus=16,threads=1,free=311373568,total=520093696
[junit4] 2> NOTE: All tests run in this JVM:
[CdcrReplicationDistributedZkTest, CSVRequestHandlerTest,
DocExpirationUpdateProcessorFactoryTest, FieldAnalysisRequestHandlerTest,
HdfsTlogReplayBufferedWhileIndexingTest,
DistribDocExpirationUpdateProcessorTest, TestMacros, SuggestComponentTest,
TestDynamicFieldCollectionResource, TestBadConfig,
TestSha256AuthenticationProvider, TestSolrCoreSnapshots, TestSolrCLIRunExample,
WordBreakSolrSpellCheckerTest, JvmMetricsTest, TestHighlightDedupGrouping,
TestShortCircuitedRequests, TestUseDocValuesAsStored,
TestFieldCacheWithThreads, TestMiniSolrCloudCluster, TestSolrJ,
TestExceedMaxTermLength, BlockJoinFacetRandomTest, MigrateRouteKeyTest,
TestComplexPhraseQParserPlugin, CachingDirectoryFactoryTest, TestWriterPerf,
DistributedSpellCheckComponentTest, TestStressRecovery, TestReplicationHandler,
CloudExitableDirectoryReaderTest, DeleteInactiveReplicaTest,
DistributedVersionInfoTest, SharedFSAutoReplicaFailoverTest,
SharedFSAutoReplicaFailoverUtilsTest, SimpleCollectionCreateDeleteTest,
TestConfigSetsAPIExclusivity, TestLeaderElectionWithEmptyReplica,
TestRequestForwarding, TestTolerantUpdateProcessorRandomCloud, CoreSorterTest,
HdfsDirectoryFactoryTest, HighlighterMaxOffsetTest, SolrGraphiteReporterTest,
TestSchemaNameResource, ChangedSchemaMergeTest, DocValuesMissingTest,
TestCollationFieldDocValues, TestManagedSchemaThreadSafety]
[junit4] Completed [603/684 (2!)] on J6 in 4.57s, 1 test, 1 error <<<
FAILURES!
{noformat}
> 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
> Assignee: Mikhail Khludnev
> Fix For: 6.5, master (7.0)
>
> Attachments: SOLR-9983-connection-loss-retry.patch, SOLR-9983.patch,
> tests-failures-TestManagedSchemaThreadSafety-724.txt
>
>
> 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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