# Elasticserach cluster log

**URL:** <https://discuss.elastic.co/t/elasticserach-cluster-log/181088>\
**Category:** Elasticsearch\
**Created:** [May 15, 2019, 2:10am UTC](https://discuss.elastic.co/t/elasticserach-cluster-log/181088 "2019-05-15T02:10:31Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![KevinShi](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kevinshi/32/118557_2.png) [@KevinShi](https://discuss.elastic.co/u/KevinShi)\
**Post date:** [May 15, 2019, 2:10am UTC](https://discuss.elastic.co/t/elasticserach-cluster-log/181088/1 "2019-05-15T02:10:32Z")

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Elasticsearch version : 6.7.0

Three servers, all servers are node.master and node.data. config like this：  
cluster.name: ismartv-elk  
node.name: node1  
path.data: /opt/elkdata  
path.logs: /var/log/elasticsearch  
node.master: true  
node.data: true  
bootstrap.memory\_lock: false  
bootstrap.system\_call\_filter: false  
network.host: 192.168.2.123  
http.port: 9200  
discovery.zen.ping.unicast.hosts: ["192.168.2.123", "192.168.2.124", "192.168.2.125"]  
discovery.zen.minimum\_master\_nodes: 2

LOG：  
[2019-05-15T09:42:50,824][DEBUG][o.e.a.a.c.n.s.TransportNodesStatsAction] [node1] failed to execute on node [LSmq2wVeTVKroGwqg4jcZw]  
org.elasticsearch.transport.RemoteTransportException: [node3][192.168.2.125:9300][cluster:monitor/nodes/stats[n]]  
Caused by: org.apache.lucene.store.AlreadyClosedException: Underlying file changed by an external force at 2019-05-15T01:32:07Z, (lock=NativeFSLock(path=/opt/elkdata/nodes/0/node.lock,impl=sun.nio.ch.FileLockImpl[0:9223372036854775807 exclusive valid],creationTime=2019-05-15T01:32:55Z))  
at org.apache.lucene.store.NativeFSLockFactory$NativeFSLock.ensureValid(NativeFSLockFactory.java:191) ~[lucene-core-7.7.0.jar:7.7.0 8c831daf4eb41153c25ddb152501ab5bae3ea3d5 - jimczi - 2019-02-04 23:16:28]  
at org.elasticsearch.env.NodeEnvironment.assertEnvIsLocked(NodeEnvironment.java:1022) ~[elasticsearch-6.7.0.jar:6.7.0]

I don't know what this log means？ And what do I need to do?  
THANKS!

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<div class="post-metadata">

**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, 2:10am UTC](https://discuss.elastic.co/t/elasticserach-cluster-log/181088/2 "2019-06-12T02:10:38Z")

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