# Elastic won't start - Java Heap **URL:** \ **Category:** Elasticsearch\ **Created:** [October 21, 2018, 6:58am UTC](https://discuss.elastic.co/t/elastic-wont-start-java-heap/153271 "2018-10-21T06:58:37Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![lowdmt](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/lowdmt/32/30300_2.png) [@lowdmt](https://discuss.elastic.co/u/lowdmt)\ **Post date:** [October 21, 2018, 6:58am UTC](https://discuss.elastic.co/t/elastic-wont-start-java-heap/153271/1 "2018-10-21T06:58:38Z")
Hi, Running ELK 6.4 with x-pack activated (trial licence) on a single Redhat server. First sign that something was going wrong was Kibana not letting me log in, I got to the logon screen but my password stopped working. I decided to restart the kibana service. From there I found that it was no longer listening on 5601 (connection refused), checked and re-checked my config but still couldn't figure it out...went down a rabbit hole thinking my issue was kibana. Actually, after some time I realised that elastic wasn't working! I've pasted my error log below from var/logs/elasticsearch my jvm.options settings are default. # Xms represents the initial size of total heap space # Xmx represents the maximum size of total heap space -Xms1g -Xmx1g For some reason I can't find the error file: ErrorFile=/var/log/elasticsearch/hs\_err\_pid%p.log Java HotSpot(TM) 64-Bit Server VM (25.181-b13) for linux-amd64 JRE (1.8.0\_181-b13), built on Jul 7 2018 00:56:38 by "java\_re" with gcc 4.3.0 20080428 (Red Hat 4.3.0-8) Memory: 4k page, physical 1878724k(353792k free), swap 16777212k(16771316k free) CommandLine flags: -XX:+AlwaysPreTouch -XX:CMSInitiatingOccupancyFraction=75 -XX:ErrorFile=/var/log/elasticsearch/hs\_err\_pid%p.log -XX:GCLogFileSize=67108864 -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/var/lib/elasticsearch -XX:InitialHeapSize=1073741824 -XX:MaxHeapSize=1073741824 -XX:MaxNewSize=174485504 -XX:MaxTenuringThreshold=6 -XX:NewSize=174485504 -XX:NumberOfGCLogFiles=32 -XX:OldPLABSize=16 -XX:OldSize=348971008 -XX:-OmitStackTraceInFastThrow -XX:+PrintGC -XX:+PrintGCApplicationStoppedTime -XX:+PrintGCDateStamps -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintTenuringDistribution -XX:ThreadStackSize=1024 -XX:+UseCMSInitiatingOccupancyOnly -XX:+UseCompressedClassPointers -XX:+UseCompressedOops -XX:+UseConcMarkSweepGC -XX:+UseGCLogFileRotation -XX:+UseParNewGC 2018-10-21T06:26:18.873+0000: 2.932: Total time for which application threads were stopped: 0.0015610 seconds, Stopping threads took: 0.0000324 seconds 2018-10-21T06:26:19.877+0000: 3.937: Total time for which application threads were stopped: 0.0090252 seconds, Stopping threads took: 0.0000482 seconds 2018-10-21T06:26:20.885+0000: 4.944: Total time for which application threads were stopped: 0.0000958 seconds, Stopping threads took: 0.0000384 seconds 2018-10-21T06:26:22.137+0000: 6.197: Total time for which application threads were stopped: 0.0001617 seconds, Stopping threads took: 0.0000549 seconds 2018-10-21T06:26:23.217+0000: 7.276: Total time for which application threads were stopped: 0.0000991 seconds, Stopping threads took: 0.0000313 seconds 2018-10-21T06:26:23.373+0000: 7.433: Total time for which application threads were stopped: 0.0001242 seconds, Stopping threads took: 0.0000329 seconds 2018-10-21T06:26:23.575+0000: 7.634: Total time for which application threads were stopped: 0.0001425 seconds, Stopping threads took: 0.0000358 seconds 2018-10-21T06:26:24.575+0000: 8.634: Total time for which application threads were stopped: 0.0000868 seconds, Stopping threads took: 0.0000248 seconds 2018-10-21T06:26:24.748+0000: 8.807: Total time for which application threads were stopped: 0.0001554 seconds, Stopping threads took: 0.0000312 seconds 2018-10-21T06:26:25.301+0000: 9.360: Total time for which application threads were stopped: 0.0001851 seconds, Stopping threads took: 0.0000329 seconds Heap par new generation total 153344K, used 62738K [0x00000000c0000000, 0x00000000ca660000, 0x00000000ca660000) eden space 136320K, 46% used [0x00000000c0000000, 0x00000000c3d44ab0, 0x00000000c8520000) from space 17024K, 0% used [0x00000000c8520000, 0x00000000c8520000, 0x00000000c95c0000) to space 17024K, 0% used [0x00000000c95c0000, 0x00000000c95c0000, 0x00000000ca660000) concurrent mark-sweep generation total 878208K, used 0K [0x00000000ca660000, 0x0000000100000000, 0x0000000100000000) Metaspace used 13099K, capacity 13488K, committed 13696K, reserved 1060864K class space used 1702K, capacity 1893K, committed 1920K, reserved 1048576K -XX:HeapDumpPath=/var/lib/elasticsearch -rw------- 1 elasticsearch elasticsearch 1345458873 Oct 6 21:11 java\_pid22570.h prof -rw------- 1 elasticsearch elasticsearch 1340236957 Oct 6 21:36 java\_pid16598.h Any help appreciated ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [November 18, 2018, 6:58am UTC](https://discuss.elastic.co/t/elastic-wont-start-java-heap/153271/2 "2018-11-18T06:58:40Z")
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