# Logstash 7.0.1 Centos 7 persistent queue vm held lock error **URL:** \ **Category:** Logstash\ **Created:** [May 14, 2019, 11:56pm UTC](https://discuss.elastic.co/t/logstash-7-0-1-centos-7-persistent-queue-vm-held-lock-error/181083 "2019-05-14T23:56:27Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![JeremyC](https://avatars.discourse-cdn.com/v4/letter/j/90ced4/32.png) [@JeremyC](https://discuss.elastic.co/u/JeremyC)\ **Post date:** [May 14, 2019, 11:56pm UTC](https://discuss.elastic.co/t/logstash-7-0-1-centos-7-persistent-queue-vm-held-lock-error/181083/1 "2019-05-14T23:56:27Z")
Hello, I am trying to add Persistent queues to logstash, however i am getting the below error. And i not sure how it resolve it. I am not sure if issue with config or logstash itself. What i have done: I have stopped logstash and removed .lock, same error I have stopped logstash and removed the whole main queue dir, same error I have remove the queue settings and logstash starts. ``` # node.name: test path.data: /var/lib/logstash config.reload.automatic: false queue.type: persisted queue.drain: true queue.page_capacity: 64mb queue.max_events: 0 queue.max_bytes: 1024mb queue.checkpoint.acks: 512 queue.checkpoint.writes: 512 queue.checkpoint.interval: 512 log.level: info path.logs: /var/log/logstash xpack.monitoring.enabled: true xpack.monitoring.elasticsearch.hosts: ["http://172.16.2.128:9200"] xpack.monitoring.elasticsearch.sniffing: true xpack.monitoring.collection.interval: 10s xpack.monitoring.collection.pipeline.details.enabled: true ``` Error Msg: [2019-05-14T16:46:27,605][INFO][logstash.javapipeline] Starting pipeline {:pipeline\_id=\>".monitoring-logstash", "pipeline.workers"=\>1, "pipeline.batch.size"=\>2, "pipeline.batch.delay"=\>50, "pipeline.max\_inflight"=\>2, :thread=\>"#\"} [2019-05-14T16:46:27,682][ERROR][org.logstash.execution.AbstractPipelineExt] Logstash failed to create queue. org.logstash.LockException: The queue failed to obtain exclusive access, cause: Lock held by this virtual machine on lock path: /var/lib/logstash/queue/main/.lock at org.logstash.ackedqueue.Queue.open(Queue.java:263) ~[logstash-core.jar:?] at org.logstash.ackedqueue.ext.JRubyAckedQueueExt.open(JRubyAckedQueueExt.java:101) ~[logstash-core.jar:?] at org.logstash.ackedqueue.ext.JRubyWrappedAckedQueueExt.initialize(JRubyWrappedAckedQueueExt.java:42) ~[logstash-core.jar:?] at org.logstash.ackedqueue.QueueFactoryExt.create(QueueFactoryExt.java:39) ~[logstash-core.jar:?] at org.logstash.execution.AbstractPipelineExt.openQueue(AbstractPipelineExt.java:169) [logstash-core.jar:?] at org.logstash.execution.AbstractPipelineExt$INVOKER$i$0$0$openQueue.call(AbstractPipelineExt$INVOKER$i$0$0$openQueue.gen) [jruby-complete-9.2.7.0.jar:?] at org.jruby.internal.runtime.methods.JavaMethod$JavaMethodN.call(JavaMethod.java:831) [jruby-complete-9.2.7.0.jar:?] at org.jruby.ir.targets.InvokeSite.invoke(InvokeSite.java:183) [jruby-complete-9.2.7.0.jar:?] at usr.share.logstash.logstash\_minus\_core.lib.logstash.java\_pipeline.RUBY$method$initialize$0(/usr/share/logstash/logstash-core/lib/logstash/java\_pipeline.rb:24) [jruby-complete-9.2.7.0.jar:?] at org.jruby.internal.runtime.methods.CompiledIRMethod.call(CompiledIRMethod.java:91) [jruby-complete-9.2.7.0.jar:?] at org.jruby.internal.runtime.methods.MixedModeIRMethod.call(MixedModeIRMethod.java:90) [jruby-complete-9.2.7.0.jar:?] at org.jruby.ir.targets.InvokeSite.invoke(InvokeSite.java:183) [jruby-complete-9.2.7.0.jar:?] at usr.share.logstash.logstash\_minus\_core.lib.logstash.pipeline\_action.create.RUBY$method$execute$0(/usr/share/logstash/logstash-core/lib/logstash/pipeline\_action/create.rb:36) [jruby-complete-9.2.7.0.jar:?] at usr.share.logstash.logstash\_minus\_core.lib.logstash.agent.RUBY$block$converge\_state$2(/usr/share/logstash/logstash-core/lib/logstash/agent.rb:325) [jruby-complete-9.2.7.0.jar:?] at org.jruby.runtime.CompiledIRBlockBody.callDirect(CompiledIRBlockBody.java:136) [jruby-complete-9.2.7.0.jar:?] at org.jruby.runtime.IRBlockBody.call(IRBlockBody.java:77) [jruby-complete-9.2.7.0.jar:?] at org.jruby.runtime.Block.call(Block.java:124) [jruby-complete-9.2.7.0.jar:?] at org.jruby.RubyProc.call(RubyProc.java:295) [jruby-complete-9.2.7.0.jar:?] at org.jruby.RubyProc.call(RubyProc.java:274) [jruby-complete-9.2.7.0.jar:?] at org.jruby.RubyProc.call(RubyProc.java:270) [jruby-complete-9.2.7.0.jar:?] at org.jruby.internal.runtime.RubyRunnable.run(RubyRunnable.java:105) [jruby-complete-9.2.7.0.jar:?] at java.lang.Thread.run(Thread.java:835) [?:?] [2019-05-14T16:46:27,744][ERROR][logstash.agent] Failed to execute action {:action=\>LogStash::PipelineAction::Create/pipeline\_id:main, :exception=\>"Java::JavaLang::IllegalStateException", :message=\>"org.logstash.LockException: The queue failed to obtain exclusive access, cause: Lock held by this virtual machine on lock path: /var/lib/logstash/queue/main/.lock", :backtrace=\>["org.logstash.execution.AbstractPipelineExt.openQueue(AbstractPipelineExt.java:172)", "org.logstash.execution.AbstractPipelineExt$INVOKER$i$0$0$openQueue.call(AbstractPipelineExt$INVOKER$i$0$0$openQueue.gen)", "org.jruby.internal.runtime.methods.JavaMethod$JavaMethodN.call(JavaMethod.java:831)", "org.jruby.ir.targets.InvokeSite.invoke(InvokeSite.java:183)", "usr.share.logstash.logstash\_minus\_core.lib.logstash.java\_pipeline.RUBY$method$initialize$0(/usr/share/logstash/logstash-core/lib/logstash/java\_pipeline.rb:24)", "org.jruby.internal.runtime.methods.CompiledIRMethod.call(CompiledIRMethod.java:91)", "org.jruby.internal.runtime.methods.MixedModeIRMethod.call(MixedModeIRMethod.java:90)", "org.jruby.ir.targets.InvokeSite.invoke(InvokeSite.java:183)", "usr.share.logstash.logstash\_minus\_core.lib.logstash.pipeline\_action.create.RUBY$method$execute$0(/usr/share/logstash/logstash-core/lib/logstash/pipeline\_action/create.rb:36)", "usr.share.logstash.logstash\_minus\_core.lib.logstash.agent.RUBY$block$converge\_state$2(/usr/share/logstash/logstash-core/lib/logstash/agent.rb:325)", "org.jruby.runtime.CompiledIRBlockBody.callDirect(CompiledIRBlockBody.java:136)", "org.jruby.runtime.IRBlockBody.call(IRBlockBody.java:77)", "org.jruby.runtime.Block.call(Block.java:124)", "org.jruby.RubyProc.call(RubyProc.java:295)", "org.jruby.RubyProc.call(RubyProc.java:274)", "org.jruby.RubyProc.call(RubyProc.java:270)", "org.jruby.internal.runtime.RubyRunnable.run(RubyRunnable.java:105)", "java.base/java.lang.Thread.run(Thread.java:835)"]} ---
**Author:** ![JeremyC](https://avatars.discourse-cdn.com/v4/letter/j/90ced4/32.png) [@JeremyC](https://discuss.elastic.co/u/JeremyC)\ **Post date:** [May 15, 2019, 10:38pm UTC](https://discuss.elastic.co/t/logstash-7-0-1-centos-7-persistent-queue-vm-held-lock-error/181083/2 "2019-05-15T22:38:04Z")
Has no one see this error before "Logstash failed to create queue. org.logstash.LockException: The queue failed to obtain exclusive access, cause: Lock held by this virtual machine on lock path: /var/lib/logstash/queue/main/.lock" ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [June 12, 2019, 10:38pm UTC](https://discuss.elastic.co/t/logstash-7-0-1-centos-7-persistent-queue-vm-held-lock-error/181083/3 "2019-06-12T22:38:08Z")
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