# ElasticSearch unexpected crash **URL:** \ **Category:** Elasticsearch\ **Created:** [October 27, 2018, 7:42am UTC](https://discuss.elastic.co/t/elasticsearch-unexpected-crash/154270 "2018-10-27T07:42:35Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![jsyu32](https://avatars.discourse-cdn.com/v4/letter/j/4da419/32.png) [@jsyu32](https://discuss.elastic.co/u/jsyu32)\ **Post date:** [October 27, 2018, 7:42am UTC](https://discuss.elastic.co/t/elasticsearch-unexpected-crash/154270/1 "2018-10-27T07:42:35Z")
The following is the log. Here are my questions. 1. What's the cause of the crash. 2. After crash, I restart the server, it can't use the historical data, instead, it only use the new disk. Can it recover from history data? 3. Is there any method to check the search history? Thanks [2018-10-26T00:04:25,952][INFO][o.e.m.j.JvmGcMonitorService] [phxriskdna016] [gc][10346442] overhead, spent [265ms] collecting in the last [1s] [2018-10-26T00:53:17,075][ERROR][o.e.t.n.Netty4Utils] fatal error on the network layer at org.elasticsearch.transport.netty4.Netty4Utils.maybeDie(Netty4Utils.java:182) at org.elasticsearch.http.netty4.Netty4HttpRequestHandler.exceptionCaught(Netty4HttpRequestHandler.java:176) at io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:285) at io.netty.channel.AbstractChannelHandlerContext.notifyHandlerException(AbstractChannelHandlerContext.java:850) .... at io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:286) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) at io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1359) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:935) at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:134) at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:645) at io.netty.channel.nio.NioEventLoop.processSelectedKeysPlain(NioEventLoop.java:545) at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:499) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:459) at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858) at java.lang.Thread.run(Thread.java:745) [2018-10-26T00:53:17,079][ERROR][o.e.b.ElasticsearchUncaughtExceptionHandler] [phxriskdna016] fatal error in thread [Thread-1108904], exiting java.lang.StackOverflowError: null at org.apache.lucene.util.automaton.RegExp.parseCharClassExp(RegExp.java:1092) ~[lucene-core-7.3.1.jar:7.3.1 ae0705edb59eaa567fe13ed3a222fdadc7153680 - caomanhdat - 2018-05-09 09:27:24] at org.apache.lucene.util.automaton.RegExp.parseComplExp(RegExp.java:1080) ~[lucene-core-7.3.1.jar:7.3.1 ae0705edb59eaa567fe13ed3a222fdadc7153680 - caomanhdat - 2018-05-09 09:27:24] at org.apache.lucene.util.automaton.RegExp.parseRepeatExp(RegExp.java:1049) ~[lucene-core-7.3.1.jar:7.3.1 ae0705edb59eaa567fe13ed3a222fdadc7153680 - caomanhdat - 2018-05-09 09:27:24] at org.apache.lucene.util.automaton.RegExp.parseConcatExp(RegExp.java:1042) ~[lucene-core-7.3.1.jar:7.3.1 ae0705edb59eaa567fe13ed3a222fdadc7153680 - caomanhdat - 2018-05-09 09:27:24] at org.apache.lucene.util.automaton.RegExp.parseConcatExp(RegExp.java:1044) ~[lucene-core-7.3.1.jar:7.3.1 ae0705edb59eaa567fe13ed3a222fdadc7153680 - caomanhdat - 2018-05-09 09:27:24] at org.apache.lucene.util.automaton.RegExp.parseConcatExp(RegExp.java:1044) ~[lucene-core-7.3.1.jar:7.3.1 ae0705edb59eaa567fe13ed3a222fdadc7153680 - caomanhdat - 2018-05-09 09:27:24] at org.apache.lucene.util.automaton.RegExp.parseConcatExp(RegExp.java:1044) ~[lucene-core-7.3.1.jar:7.3.1 ae0705edb59eaa567fe13ed3a222fdadc7153680 - caomanhdat - 2018-05-09 09:27:24] at org.apache.lucene.util.automaton.RegExp.parseConcatExp(RegExp.java:1044) ~[lucene-core-7.3.1.jar:7.3.1 ae0705edb59eaa567fe13ed3a222fdadc7153680 - caomanhdat - 2018-05-09 09:27:24] at org.apache.lucene.util.automaton.RegExp.parseConcatExp(RegExp.java:1044) ~[lucene-core-7.3.1.jar:7.3.1 ae0705edb59eaa567fe13ed3a222fdadc7153680 - caomanhdat - 2018-05-09 09:27:24] at org.apache.lucene.util.automaton.RegExp.parseConcatExp(RegExp.java:1044) ~[lucene-core-7.3.1.jar:7.3.1 ae0705edb59eaa567fe13ed3a222fdadc7153680 - caomanhdat - 2018-05-09 09:27:24] at org.apache.lucene.util.automaton.RegExp.parseConcatExp(RegExp.java:1044) ~[lucene-core-7.3.1.jar:7.3.1 ae0705edb59eaa567fe13ed3a222fdadc7153680 - caomanhdat - 2018-05-09 09:27:24] [2018-10-26T01:21:06,079][INFO][o.e.n.Node] [phxriskdna016] initializing ... [2018-10-26T01:21:06,198][INFO][o.e.e.NodeEnvironment] [phxriskdna016] using [3] data paths, mounts [[/data05 (/dev/sdf1), /data06 (/dev/sdg1), /data04 (/dev/sde1)]], net usable\_space [949.4gb], net tot al\_space [5.4tb], types [xfs] [2018-10-26T01:21:06,198][INFO][o.e.e.NodeEnvironment] [phxriskdna016] heap size [23.8gb], compressed ordinary object pointers [true] [2018-10-26T01:21:26,066][INFO][o.e.n.Node] [phxriskdna016] node name [phxriskdna016], node ID [AYPmZaAEQoy\_B-20jLOVtQ] [2018-10-26T01:21:26,066][INFO][o.e.n.Node] [phxriskdna016] version[6.3.0], pid[32279], build[default/tar/424e937/2018-06-11T23:38:03.357887Z], OS[Linux/3.10.0-514.el7.x86\_64/amd64], JVM[Orac le Corporation/Java HotSpot(TM) 64-Bit Server VM/1.8.0\_73/25.73-b02] [2018-10-26T01:21:26,067][INFO][o.e.n.Node] [phxriskdna016] JVM arguments [-Xms24g, -Xmx24g, -XX:+UseConcMarkSweepGC, -XX:CMSInitiatingOccupancyFraction=75, -XX:+UseCMSInitiatingOccupancyOnly , -XX:+AlwaysPreTouch, -Xss1m, -Djava.awt.headless=true, -Dfile.encoding=UTF-8, -Djna.nosys=true, -XX:-OmitStackTraceInFastThrow, -Dio.netty.noUnsafe=true, -Dio.netty.noKeySetOptimization=true, -[Dio.netty.re](http://dio.netty.re/) cycler.maxCapacityPerThread=0, -Dlog4j.shutdownHookEnabled=false, -Dlog4j2.disable.jmx=true, -[Djava.io](http://djava.io/).tmpdir=/tmp/elasticsearch.zlJPw4WQ, -XX:+HeapDumpOnOutOfMemoryError, -XX:+PrintGCDetails, -XX:+PrintGCDa teStamps, -XX:+PrintTenuringDistribution, -XX:+PrintGCApplicationStoppedTime, -Xloggc:logs/gc.log, -XX:+UseGCLogFileRotation, -XX:NumberOfGCLogFiles=32, -XX:GCLogFileSize=64m, -Des.path.home=/x/home/pp\_risk\_ rom\_batch/elasticsearch-6.3.0, -Des.path.conf=/x/home/pp\_risk\_rom\_batch/elasticsearch-6.3.0/config, -Des.distribution.flavor=default, -Des.distribution.type=tar] [2018-10-26T01:21:30,119][INFO][o.e.p.PluginsService] [phxriskdna016] loaded module [aggs-matrix-stats] [2018-10-26T01:21:30,119][INFO][o.e.p.PluginsService] [phxriskdna016] loaded module [analysis-common] ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [November 24, 2018, 7:42am UTC](https://discuss.elastic.co/t/elasticsearch-unexpected-crash/154270/2 "2018-11-24T07:42:35Z")
Closed on November 24, 2018, 7:42am UTC This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.