Elasticsearch error license is not available

Elastic Stack Elasticsearch
1

es: 7.12
os:CentOS7
java : java-1.8.0-openjdk.x86_64 (/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.282.b08-1.el7_9.x86_64/jre/bin/java)

My cluster used to had 2 node,
this node as : master
another node as : data-1.
I decide to make it as single node again so I shut data-1.
I reconfigure elasticsearch.yml on master to make it as default ,
but when I try to rune the previously master node it returning

{"statusCode":503,"error":"Service Unavailable","message":"License is not available."}

my log
journalctl --unit elasticsearch

Mar 25 13:33:56 localhost.localdomain systemd[1]: Starting Elasticsearch...
Mar 25 13:33:58 localhost.localdomain systemd-entrypoint[2952]: Exception in thread "main" java.lang.RuntimeException: starting java failed with [1]
Mar 25 13:33:58 localhost.localdomain systemd-entrypoint[2952]: output:
Mar 25 13:33:58 localhost.localdomain systemd-entrypoint[2952]: error:
Mar 25 13:33:58 localhost.localdomain systemd-entrypoint[2952]: Unrecognized VM option 'UseConcMarkSweepGC'
Mar 25 13:33:58 localhost.localdomain systemd-entrypoint[2952]: Error: Could not create the Java Virtual Machine.
Mar 25 13:33:58 localhost.localdomain systemd-entrypoint[2952]: Error: A fatal exception has occurred. Program will exit.
Mar 25 13:33:58 localhost.localdomain systemd-entrypoint[2952]: at org.elasticsearch.tools.launchers.JvmOption.flagsFinal(JvmOption.java:119)
Mar 25 13:33:58 localhost.localdomain systemd-entrypoint[2952]: at org.elasticsearch.tools.launchers.JvmOption.findFinalOptions(JvmOption.java:81)
Mar 25 13:33:58 localhost.localdomain systemd-entrypoint[2952]: at org.elasticsearch.tools.launchers.JvmErgonomics.choose(JvmErgonomics.java:38)
Mar 25 13:33:58 localhost.localdomain systemd-entrypoint[2952]: at org.elasticsearch.tools.launchers.JvmOptionsParser.jvmOptions(JvmOptionsParser.java:135)
Mar 25 13:33:58 localhost.localdomain systemd-entrypoint[2952]: at org.elasticsearch.tools.launchers.JvmOptionsParser.main(JvmOptionsParser.java:86)
Mar 25 13:33:58 localhost.localdomain systemd[1]: elasticsearch.service: main process exited, code=exited, status=1/FAILURE
Mar 25 13:33:58 localhost.localdomain systemd[1]: Failed to start Elasticsearch.

I've tried some solution here solutions from github, https://discuss.elastic.co/t/elasticsearch-wont-start-after-7-9-1-to-7-9-2-upgrade/249878/2

8-13:-XX:+UseConcMarkSweepGC
8-13:-XX:CMSInitiatingOccupancyFraction=75
8-13:-XX:+UseCMSInitiatingOccupancyOnly

not working,

-XX:+UseConcMarkSweepGC
-XX:CMSInitiatingOccupancyFraction=75
-XX:+UseCMSInitiatingOccupancyOnly

not working

#-XX:+UseConcMarkSweepGC
#-XX:CMSInitiatingOccupancyFraction=75
#-XX:+UseCMSInitiatingOccupancyOnly

not working either

any suggestion will be appreciated

2

How exactly did you remove the other node, can you provide more details on that?

3

Hi @warkolm , sure.
I just shut the elasticsearch service on the node I want to remove.
then return the elasticsearch.yml of the node I want to keep as default.

4

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