# Elasticsearch 5.2.0 installation on Ubuntu **URL:** \ **Category:** Elasticsearch\ **Created:** [September 20, 2018, 6:06am UTC](https://discuss.elastic.co/t/elasticsearch-5-2-0-installation-on-ubuntu/149229 "2018-09-20T06:06:58Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![abbasali](https://avatars.discourse-cdn.com/v4/letter/a/ea666f/32.png) [@abbasali](https://discuss.elastic.co/u/abbasali)\ **Post date:** [September 20, 2018, 6:06am UTC](https://discuss.elastic.co/t/elasticsearch-5-2-0-installation-on-ubuntu/149229/1 "2018-09-20T06:06:58Z")
Hello Everyone, My OS: Ubuntu 18.0.4 LTS Installing Elastic version: 5.2.0 Issue: Right after restart the elasticsearch it stopped. Log file error is following ``` "[2018-09-20T14:58:29,588][INFO][o.e.n.Node] [node-1] version[5.2.0], pid[21729], build[24e05b9/2017-01-24T19:52:35.800Z], OS[Linux/4.15.0-34-generic/amd64], JVM["Oracle Corporation"/Java HotSpot(TM) 64-Bit Server VM/10.0.2/10.0.2+13] [2018-09-20T14:58:29,949][INFO][o.e.p.PluginsService] [node-1] loaded module [aggs-matrix-stats] [2018-09-20T14:58:29,949][INFO][o.e.p.PluginsService] [node-1] loaded module [ingest-common] [2018-09-20T14:58:29,949][INFO][o.e.p.PluginsService] [node-1] loaded module [lang-expression] [2018-09-20T14:58:29,949][INFO][o.e.p.PluginsService] [node-1] loaded module [lang-groovy] [2018-09-20T14:58:29,949][INFO][o.e.p.PluginsService] [node-1] loaded module [lang-mustache] [2018-09-20T14:58:29,949][INFO][o.e.p.PluginsService] [node-1] loaded module [lang-painless] [2018-09-20T14:58:29,949][INFO][o.e.p.PluginsService] [node-1] loaded module [percolator] [2018-09-20T14:58:29,949][INFO][o.e.p.PluginsService] [node-1] loaded module [reindex] [2018-09-20T14:58:29,949][INFO][o.e.p.PluginsService] [node-1] loaded module [transport-netty3] [2018-09-20T14:58:29,949][INFO][o.e.p.PluginsService] [node-1] loaded module [transport-netty4] [2018-09-20T14:58:29,949][INFO][o.e.p.PluginsService] [node-1] no plugins loaded [2018-09-20T14:58:30,312][ERROR][o.e.b.Bootstrap] Exception java.lang.IllegalStateException: No match found at java.util.regex.Matcher.group(Matcher.java:645) ~[?:?] at org.elasticsearch.monitor.os.OsProbe.getControlGroups(OsProbe.java:216) ~[elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.monitor.os.OsProbe.getCgroup(OsProbe.java:414) ~[elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.monitor.os.OsProbe.osStats(OsProbe.java:466) ~[elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.monitor.os.OsService.(OsService.java:45) ~[elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.monitor.MonitorService.(MonitorService.java:45) ~[elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.node.Node.(Node.java:345) ~[elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.node.Node.(Node.java:232) ~[elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.bootstrap.Bootstrap$6.(Bootstrap.java:241) ~[elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:241) ~[elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:333) [elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:121) [elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:112) [elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.cli.SettingCommand.execute(SettingCommand.java:54) [elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:122) [elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.cli.Command.main(Command.java:88) [elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:89) [elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:82) [elasticsearch-5.2.0.jar:5.2.0] [2018-09-20T14:58:30,316][WARN][o.e.b.ElasticsearchUncaughtExceptionHandler] [node-1] uncaught exception in thread [main] org.elasticsearch.bootstrap.StartupException: java.lang.IllegalStateException: No match found at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:125) ~[elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:112) ~[elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.cli.SettingCommand.execute(SettingCommand.java:54) ~[elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:122) ~[elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.cli.Command.main(Command.java:88) ~[elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:89) ~[elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:82) ~[elasticsearch-5.2.0.jar:5.2.0] Caused by: java.lang.IllegalStateException: No match found at java.util.regex.Matcher.group(Matcher.java:645) ~[?:?] at org.elasticsearch.monitor.os.OsProbe.getControlGroups(OsProbe.java:216) ~[elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.monitor.os.OsProbe.getCgroup(OsProbe.java:414) ~[elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.monitor.os.OsProbe.osStats(OsProbe.java:466) ~[elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.monitor.os.OsService.(OsService.java:45) ~[elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.monitor.MonitorService.(MonitorService.java:45) ~[elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.node.Node.(Node.java:345) ~[elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.node.Node.(Node.java:232) ~[elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.bootstrap.Bootstrap$6.(Bootstrap.java:241) ~[elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:241) ~[elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:333) ~[elasticsearch-5.2.0.jar:5.2.0] at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:121) ~[elasticsearch-5.2.0.jar:5.2.0] ... 6 more " ``` Can you please let me know how can I solve it? I have set the JAVA\_HOME at /etc/default/elasticsearch as JAVA\_HOME=/usr/lib/jvm/java-10-oracle. ---
**Author:** ![danielmitterdorfer](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/danielmitterdorfer/32/110510_2.png) [@danielmitterdorfer](https://discuss.elastic.co/u/danielmitterdorfer)\ **Post date:** [September 20, 2018, 6:21am UTC](https://discuss.elastic.co/t/elasticsearch-5-2-0-installation-on-ubuntu/149229/2 "2018-09-20T06:21:25Z")
Hi, it's likely that your system is running on cgroups v2 and you are affected by [https://github.com/elastic/elasticsearch/issues/23486](https://github.com/elastic/elasticsearch/issues/23486) which is fixed by [https://github.com/elastic/elasticsearch/pull/23493](https://github.com/elastic/elasticsearch/pull/23493). So you should upgrade at least to the latest maintenance release in the 5.3 series which is Elasticsearch 5.3.3. Also note that Elasticsearch supports Java 10 only starting with Elasticsearch 6.3 (see also our [support matrix](https://www.elastic.co/support/matrix#matrix_jvm). Daniel ---
**Author:** ![abbasali](https://avatars.discourse-cdn.com/v4/letter/a/ea666f/32.png) [@abbasali](https://discuss.elastic.co/u/abbasali)\ **Post date:** [September 20, 2018, 6:23am UTC](https://discuss.elastic.co/t/elasticsearch-5-2-0-installation-on-ubuntu/149229/3 "2018-09-20T06:23:10Z")
Thank You Daniel for your quick reply. Actually I need to use the elastic search with Magento 2. And Magneto support until ElasticSearch 5.2. I try to downgrade my Java and then let you know. ---
**Author:** ![danielmitterdorfer](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/danielmitterdorfer/32/110510_2.png) [@danielmitterdorfer](https://discuss.elastic.co/u/danielmitterdorfer)\ **Post date:** [September 20, 2018, 6:31am UTC](https://discuss.elastic.co/t/elasticsearch-5-2-0-installation-on-ubuntu/149229/4 "2018-09-20T06:31:42Z")
Hi, the Java downgrade will not help you. Your problem is that your OS is running on cgroups v2. You could probably downgrade to an older release of Ubuntu if you really need to stay on Elasticsearch 5.2. Daniel ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [October 18, 2018, 6:31am UTC](https://discuss.elastic.co/t/elasticsearch-5-2-0-installation-on-ubuntu/149229/5 "2018-10-18T06:31:43Z")
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