dhoman@ElasticSearch:~$ sudo journalctl -u elasticsearch.service
-- Logs begin at Tue 2020-10-06 08:14:59 UTC, end at Tue 2020-10-06 21:11:35 UTC. --
Oct 06 20:31:51 ElasticSearch systemd[1]: elasticsearch.service: Current command vanished from the unit file, execution of the command list won't be resumed.
Oct 06 20:40:25 ElasticSearch systemd[1]: Stopping Elasticsearch...
Oct 06 20:40:28 ElasticSearch systemd[1]: Stopped Elasticsearch.
-- Reboot --
Oct 06 20:48:26 ElasticSearch systemd[1]: Starting Elasticsearch...
Oct 06 20:48:29 ElasticSearch systemd-entrypoint[1101]: Exception in thread "main" java.lang.RuntimeException: starting java failed with [1]
Oct 06 20:48:29 ElasticSearch systemd-entrypoint[1101]: output:
Oct 06 20:48:29 ElasticSearch systemd-entrypoint[1101]: error:
Oct 06 20:48:29 ElasticSearch systemd-entrypoint[1101]: Unrecognized VM option 'UseConcMarkSweepGC'
Oct 06 20:48:29 ElasticSearch systemd-entrypoint[1101]: Error: Could not create the Java Virtual Machine.
Oct 06 20:48:29 ElasticSearch systemd-entrypoint[1101]: Error: A fatal exception has occurred. Program will exit.
Oct 06 20:48:29 ElasticSearch systemd-entrypoint[1101]: at org.elasticsearch.tools.launchers.JvmErgonomics.flagsFinal(JvmErgonomics.java:126)
Oct 06 20:48:29 ElasticSearch systemd-entrypoint[1101]: at org.elasticsearch.tools.launchers.JvmErgonomics.finalJvmOptions(JvmErgonomics.java:88)
Oct 06 20:48:29 ElasticSearch systemd-entrypoint[1101]: at org.elasticsearch.tools.launchers.JvmErgonomics.choose(JvmErgonomics.java:59)
Oct 06 20:48:29 ElasticSearch systemd-entrypoint[1101]: at org.elasticsearch.tools.launchers.JvmOptionsParser.jvmOptions(JvmOptionsParser.java:137)
Oct 06 20:48:29 ElasticSearch systemd-entrypoint[1101]: at org.elasticsearch.tools.launchers.JvmOptionsParser.main(JvmOptionsParser.java:95)
Oct 06 20:48:29 ElasticSearch systemd[1]: elasticsearch.service: Main process exited, code=exited, status=1/FAILURE
Oct 06 20:48:29 ElasticSearch systemd[1]: elasticsearch.service: Failed with result 'exit-code'.
Oct 06 20:48:29 ElasticSearch systemd[1]: Failed to start Elasticsearch.
Oct 06 20:59:30 ElasticSearch systemd[1]: Starting Elasticsearch...
Oct 06 20:59:32 ElasticSearch systemd-entrypoint[3356]: Exception in thread "main" java.lang.RuntimeException: starting java failed with [1]
Oct 06 20:59:32 ElasticSearch systemd-entrypoint[3356]: output:
Oct 06 20:59:32 ElasticSearch systemd-entrypoint[3356]: error:
Oct 06 20:59:32 ElasticSearch systemd-entrypoint[3356]: Unrecognized VM option 'UseConcMarkSweepGC'
Oct 06 20:59:32 ElasticSearch systemd-entrypoint[3356]: Error: Could not create the Java Virtual Machine.
Oct 06 20:59:32 ElasticSearch systemd-entrypoint[3356]: Error: A fatal exception has occurred. Program will exit.
Oct 06 20:59:32 ElasticSearch systemd-entrypoint[3356]: at org.elasticsearch.tools.launchers.JvmErgonomics.flagsFinal(JvmErgonomics.java:126)
Oct 06 20:59:32 ElasticSearch systemd-entrypoint[3356]: at org.elasticsearch.tools.launchers.JvmErgonomics.finalJvmOptions(JvmErgonomics.java:88)
Oct 06 20:59:32 ElasticSearch systemd-entrypoint[3356]: at org.elasticsearch.tools.launchers.JvmErgonomics.choose(JvmErgonomics.java:59)
Oct 06 20:59:32 ElasticSearch systemd-entrypoint[3356]: at org.elasticsearch.tools.launchers.JvmOptionsParser.jvmOptions(JvmOptionsParser.java:137)
Oct 06 20:59:32 ElasticSearch systemd-entrypoint[3356]: at org.elasticsearch.tools.launchers.JvmOptionsParser.main(JvmOptionsParser.java:95)
Oct 06 20:59:32 ElasticSearch systemd[1]: elasticsearch.service: Main process exited, code=exited, status=1/FAILURE
Oct 06 20:59:32 ElasticSearch systemd[1]: elasticsearch.service: Failed with result 'exit-code'.
Oct 06 20:59:32 ElasticSearch systemd[1]: Failed to start Elasticsearch.
Oct 06 21:06:05 ElasticSearch systemd[1]: Starting Elasticsearch...
Oct 06 21:06:07 ElasticSearch systemd-entrypoint[3605]: Exception in thread "main" java.lang.RuntimeException: starting java failed with [1]
Oct 06 21:06:07 ElasticSearch systemd-entrypoint[3605]: output:
Oct 06 21:06:07 ElasticSearch systemd-entrypoint[3605]: error:
Oct 06 21:06:07 ElasticSearch systemd-entrypoint[3605]: Unrecognized VM option 'UseConcMarkSweepGC'
Oct 06 21:06:07 ElasticSearch systemd-entrypoint[3605]: Error: Could not create the Java Virtual Machine.
Oct 06 21:06:07 ElasticSearch systemd-entrypoint[3605]: Error: A fatal exception has occurred. Program will exit.
Oct 06 21:06:07 ElasticSearch systemd-entrypoint[3605]: at org.elasticsearch.tools.launchers.JvmErgonomics.flagsFinal(JvmErgonomics.java:126)
Oct 06 21:06:07 ElasticSearch systemd-entrypoint[3605]: at org.elasticsearch.tools.launchers.JvmErgonomics.finalJvmOptions(JvmErgonomics.java:88)
Oct 06 21:06:07 ElasticSearch systemd-entrypoint[3605]: at org.elasticsearch.tools.launchers.JvmErgonomics.choose(JvmErgonomics.java:59)
Oct 06 21:06:07 ElasticSearch systemd-entrypoint[3605]: at org.elasticsearch.tools.launchers.JvmOptionsParser.jvmOptions(JvmOptionsParser.java:137)
Oct 06 21:06:07 ElasticSearch systemd-entrypoint[3605]: at org.elasticsearch.tools.launchers.JvmOptionsParser.main(JvmOptionsParser.java:95)
Oct 06 21:06:07 ElasticSearch systemd[1]: elasticsearch.service: Main process exited, code=exited, status=1/FAILURE
Oct 06 21:06:07 ElasticSearch systemd[1]: elasticsearch.service: Failed with result 'exit-code'.
Oct 06 21:06:07 ElasticSearch systemd[1]: Failed to start Elasticsearch.
I restarted the Elasticsearch machine, and now Elasticsearch will not start. logfile above.
Can you help me?