Sonar Scanner Error - Background Task Error

Sonar Server Version: 9.2.0.49834
Sonar Scanner Version: 4.6.2.2472

I have a specific Sonar project failing scans and showing errors during background task execution. I am seeing the following error on the console when I click on error details.

org.sonar.ce.task.projectanalysis.component.VisitException: Visit of Component {key=iseatz_ovbs:lib/ovbs/calls/itinerary/car.rb,type=FILE} failed
	at org.sonar.ce.task.projectanalysis.component.VisitException.rethrowOrWrap(VisitException.java:44)
	at org.sonar.ce.task.projectanalysis.component.VisitorsCrawler.visit(VisitorsCrawler.java:74)
	at org.sonar.ce.task.projectanalysis.component.VisitorsCrawler.visitChildren(VisitorsCrawler.java:110)
	at org.sonar.ce.task.projectanalysis.component.VisitorsCrawler.visitImpl(VisitorsCrawler.java:97)
	at org.sonar.ce.task.projectanalysis.component.VisitorsCrawler.visit(VisitorsCrawler.java:72)
	at org.sonar.ce.task.projectanalysis.component.VisitorsCrawler.visitChildren(VisitorsCrawler.java:110)
	at org.sonar.ce.task.projectanalysis.component.VisitorsCrawler.visitImpl(VisitorsCrawler.java:97)
	at org.sonar.ce.task.projectanalysis.component.VisitorsCrawler.visit(VisitorsCrawler.java:72)
	at org.sonar.ce.task.projectanalysis.component.VisitorsCrawler.visitChildren(VisitorsCrawler.java:110)
	at org.sonar.ce.task.projectanalysis.component.VisitorsCrawler.visitImpl(VisitorsCrawler.java:97)
	at org.sonar.ce.task.projectanalysis.component.VisitorsCrawler.visit(VisitorsCrawler.java:72)
	at org.sonar.ce.task.projectanalysis.component.VisitorsCrawler.visitChildren(VisitorsCrawler.java:110)
	at org.sonar.ce.task.projectanalysis.component.VisitorsCrawler.visitImpl(VisitorsCrawler.java:97)
	at org.sonar.ce.task.projectanalysis.component.VisitorsCrawler.visit(VisitorsCrawler.java:72)
	at org.sonar.ce.task.projectanalysis.component.VisitorsCrawler.visitChildren(VisitorsCrawler.java:110)
	at org.sonar.ce.task.projectanalysis.component.VisitorsCrawler.visitImpl(VisitorsCrawler.java:97)
	at org.sonar.ce.task.projectanalysis.component.VisitorsCrawler.visit(VisitorsCrawler.java:72)
	at org.sonar.ce.task.projectanalysis.step.ExecuteVisitorsStep.execute(ExecuteVisitorsStep.java:51)
	at org.sonar.ce.task.step.ComputationStepExecutor.executeStep(ComputationStepExecutor.java:81)
	at org.sonar.ce.task.step.ComputationStepExecutor.executeSteps(ComputationStepExecutor.java:72)
	at org.sonar.ce.task.step.ComputationStepExecutor.execute(ComputationStepExecutor.java:59)
	at org.sonar.ce.task.projectanalysis.taskprocessor.ReportTaskProcessor.process(ReportTaskProcessor.java:81)
	at org.sonar.ce.taskprocessor.CeWorkerImpl$ExecuteTask.executeTask(CeWorkerImpl.java:212)
	at org.sonar.ce.taskprocessor.CeWorkerImpl$ExecuteTask.run(CeWorkerImpl.java:194)
	at org.sonar.ce.taskprocessor.CeWorkerImpl.findAndProcessTask(CeWorkerImpl.java:160)
	at org.sonar.ce.taskprocessor.CeWorkerImpl$TrackRunningState.get(CeWorkerImpl.java:135)
	at org.sonar.ce.taskprocessor.CeWorkerImpl.call(CeWorkerImpl.java:87)
	at org.sonar.ce.taskprocessor.CeWorkerImpl.call(CeWorkerImpl.java:53)
	at com.google.common.util.concurrent.TrustedListenableFutureTask$TrustedFutureInterruptibleTask.runInterruptibly(TrustedListenableFutureTask.java:125)
	at com.google.common.util.concurrent.InterruptibleTask.run(InterruptibleTask.java:69)
	at com.google.common.util.concurrent.TrustedListenableFutureTask.run(TrustedListenableFutureTask.java:78)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: java.lang.IllegalStateException: Fail to process issues of component 'iseatz_ovbs:lib/ovbs/calls/itinerary/car.rb'
	at org.sonar.ce.task.projectanalysis.issue.IntegrateIssuesVisitor.visitAny(IntegrateIssuesVisitor.java:79)
	at org.sonar.ce.task.projectanalysis.component.TypeAwareVisitorWrapper.visitAny(TypeAwareVisitorWrapper.java:77)
	at org.sonar.ce.task.projectanalysis.component.VisitorsCrawler.visitNode(VisitorsCrawler.java:117)
	at org.sonar.ce.task.projectanalysis.component.VisitorsCrawler.visitImpl(VisitorsCrawler.java:100)
	at org.sonar.ce.task.projectanalysis.component.VisitorsCrawler.visit(VisitorsCrawler.java:72)
	... 35 more
Caused by: org.sonar.server.es.ElasticsearchException: Fail to execute es requestES search request 'SearchRequest{searchType=QUERY_THEN_FETCH, indices=[users], indicesOptions=IndicesOptions[ignore_unavailable=false, allow_no_indices=true, expand_wildcards_open=true, expand_wildcards_closed=false, expand_wildcards_hidden=false, allow_aliases_to_multiple_indices=true, forbid_closed_indices=true, ignore_aliases=false, ignore_throttled=true], types=[user], routing='null', preference='null', requestCache=null, scroll=null, maxConcurrentShardRequests=0, batchedReduceSize=512, preFilterShardSize=null, allowPartialSearchResults=null, localClusterAlias=null, getOrCreateAbsoluteStartMillis=-1, ccsMinimizeRoundtrips=true, source={"size":3,"query":{"bool":{"must":[{"match_all":{"boost":1.0}}],"filter":[{"bool":{"must":[{"term":{"active":{"value":true,"boost":1.0}}}],"should":[{"term":{"login":{"value":"ngulick@iseatz.com","boost":1.0}}},{"match":{"email.sortable_analyzer":{"query":"ngulick@iseatz.com","operator":"OR","prefix_length":0,"max_expansions":50,"fuzzy_transpositions":true,"lenient":false,"zero_terms_query":"NONE","auto_generate_synonyms_phrase_query":true,"boost":1.0}}},{"match":{"scmAccounts.sortable_analyzer":{"query":"ngulick@iseatz.com","operator":"OR","prefix_length":0,"max_expansions":50,"fuzzy_transpositions":true,"lenient":false,"zero_terms_query":"NONE","auto_generate_synonyms_phrase_query":true,"boost":1.0}}}],"adjust_pure_negative":true,"minimum_should_match":"1","boost":1.0}}],"adjust_pure_negative":true,"boost":1.0}}}}' on indices '[users]' on types '[user]'
	at org.sonar.server.es.EsClient.execute(EsClient.java:313)
	at org.sonar.server.es.EsClient.search(EsClient.java:134)
	at org.sonar.server.user.index.UserIndex.getAtMostThreeActiveUsersForScmAccount(UserIndex.java:73)
	at org.sonar.ce.task.projectanalysis.issue.ScmAccountToUserLoader.load(ScmAccountToUserLoader.java:49)
	at org.sonar.ce.task.projectanalysis.issue.ScmAccountToUserLoader.load(ScmAccountToUserLoader.java:37)
	at org.sonar.ce.task.projectanalysis.util.cache.MemoryCache.getNullable(MemoryCache.java:46)
	at java.base/java.util.Optional.map(Optional.java:265)
	at org.sonar.ce.task.projectanalysis.issue.IssueAssigner.onIssue(IssueAssigner.java:85)
	at org.sonar.ce.task.projectanalysis.issue.IssueVisitors.onIssue(IssueVisitors.java:41)
	at org.sonar.ce.task.projectanalysis.issue.IntegrateIssuesVisitor.process(IntegrateIssuesVisitor.java:129)
	at org.sonar.ce.task.projectanalysis.issue.IntegrateIssuesVisitor.fillNewOpenIssues(IntegrateIssuesVisitor.java:96)
	at org.sonar.ce.task.projectanalysis.issue.IntegrateIssuesVisitor.visitAny(IntegrateIssuesVisitor.java:73)
	... 39 more
Caused by: java.lang.RuntimeException: Request cannot be executed; I/O reactor status: STOPPED
	at org.elasticsearch.client.RestClient.extractAndWrapCause(RestClient.java:889)
	at org.elasticsearch.client.RestClient.performRequest(RestClient.java:283)
	at org.elasticsearch.client.RestClient.performRequest(RestClient.java:270)
	at org.elasticsearch.client.RestHighLevelClient.performClientRequest(RestHighLevelClient.java:2082)
	at org.elasticsearch.client.RestHighLevelClient.internalPerformRequest(RestHighLevelClient.java:1732)
	at org.elasticsearch.client.RestHighLevelClient.performRequest(RestHighLevelClient.java:1702)
	at org.elasticsearch.client.RestHighLevelClient.performRequestAndParseEntity(RestHighLevelClient.java:1672)
	at org.elasticsearch.client.RestHighLevelClient.search(RestHighLevelClient.java:1128)
	at org.sonar.server.es.EsClient.lambda$search$1(EsClient.java:134)
	at org.sonar.server.es.EsClient.execute(EsClient.java:311)
	... 50 more
Caused by: java.lang.IllegalStateException: Request cannot be executed; I/O reactor status: STOPPED
	at org.apache.http.util.Asserts.check(Asserts.java:46)
	at org.apache.http.impl.nio.client.CloseableHttpAsyncClientBase.ensureRunning(CloseableHttpAsyncClientBase.java:90)
	at org.apache.http.impl.nio.client.InternalHttpAsyncClient.execute(InternalHttpAsyncClient.java:123)
	at org.elasticsearch.client.RestClient.performRequest(RestClient.java:279)
	... 58 more

Hi, it looks like the compute engine cannot reach Elasticsearch. Anything interesting in the es.log file?
Does this happen only when scanning a specific project?

It has been already resolved. It was something related to Elasticsearch indexes.

Thanks!
Andre

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