I don't understand, it starts and turns down just after :
[root@frghcslnetv12 bin]# systemctl start elasticsearch.service
[root@frghcslnetv12 bin]# systemctl status elasticsearch.service
● elasticsearch.service - Elasticsearch
Loaded: loaded (/etc/systemd/system/elasticsearch.service; enabled; vendor preset: disabled)
Active: active (running) since Fri 2018-07-13 16:11:17 CEST; 1s ago
Docs: http://www.elastic.co
Main PID: 61658 (java)
Tasks: 17
CGroup: /system.slice/elasticsearch.service
└─61658 /bin/java -Xms1g -Xmx1g -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly -XX:+AlwaysPreTouch -Xss1m -Djava....
Jul 13 16:11:17 frghcslnetv12 systemd[1]: Started Elasticsearch.
Jul 13 16:11:17 frghcslnetv12 systemd[1]: Starting Elasticsearch...
[root@frghcslnetv12 bin]# systemctl status elasticsearch.service
● elasticsearch.service - Elasticsearch
Loaded: loaded (/etc/systemd/system/elasticsearch.service; enabled; vendor preset: disabled)
Active: failed (Result: exit-code) since Fri 2018-07-13 16:11:19 CEST; 1s ago
Docs: http://www.elastic.co
Process: 61658 ExecStart=/usr/share/elasticsearch/bin/elasticsearch -p ${PID_DIR}/elasticsearch.pid --quiet -Edefault.path.logs=${LOG_DIR} -Edefault.path.data=${DATA_DIR} -Edefault.path.conf=${CONF_DIR} (code=exited, status=1/FAILURE)
Main PID: 61658 (code=exited, status=1/FAILURE)
Jul 13 16:11:19 frghcslnetv12 elasticsearch[61658]: 2018-07-13 16:11:19,360 main ERROR Null object returned for RollingFile in Appenders.
Jul 13 16:11:19 frghcslnetv12 elasticsearch[61658]: 2018-07-13 16:11:19,361 main ERROR Null object returned for RollingFile in Appenders.
Jul 13 16:11:19 frghcslnetv12 elasticsearch[61658]: 2018-07-13 16:11:19,361 main ERROR Unable to locate appender "rolling" for logger config "root"
Jul 13 16:11:19 frghcslnetv12 elasticsearch[61658]: 2018-07-13 16:11:19,361 main ERROR Unable to locate appender "index_indexing_slowlog_rolling" for logger config ...log.index"
Jul 13 16:11:19 frghcslnetv12 elasticsearch[61658]: 2018-07-13 16:11:19,362 main ERROR Unable to locate appender "audit_rolling" for logger config "org.elasticsearc...uditTrail"
Jul 13 16:11:19 frghcslnetv12 elasticsearch[61658]: 2018-07-13 16:11:19,362 main ERROR Unable to locate appender "index_search_slowlog_rolling" for logger config "i...h.slowlog"
Jul 13 16:11:19 frghcslnetv12 elasticsearch[61658]: 2018-07-13 16:11:19,362 main ERROR Unable to locate appender "deprecation_rolling" for logger config "org.elasti...precation"
Jul 13 16:11:19 frghcslnetv12 systemd[1]: elasticsearch.service: main process exited, code=exited, status=1/FAILURE
Jul 13 16:11:19 frghcslnetv12 systemd[1]: Unit elasticsearch.service entered failed state.
Jul 13 16:11:19 frghcslnetv12 systemd[1]: elasticsearch.service failed.
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