OnCommand Insight ElasticSearch サービスが「 AccessDenied 」例外で開始できませんでした

環境

• OnCommand Insight 7.3.x
• Red Hat Enterprise Linux 7.x
• CentOS 7.x

問題

ElasticSearch サービスが開始されると、「アクセスが拒否されました」という例外が発生して失敗します。

• ElasticSearch サービスが実行されていません。

[root@netapp-oci-lin ~]# oci-service.sh
OnCommand (R) Insight 7.3.9

mysql...............running
elasticsearch.......not running
wildfly.............running
acquisition.........running

• サービスを開始すると、コマンドラインインターフェイス（ CLI ）およびジャーナルのチェック時に、次のいずれかのエラーが表示されます。

例1：[root@ocirhel ~]# systemctl start elasticsearch
 Job for elasticsearch.service failed because the control process exited with error code. See "systemctl status elasticsearch.service" and "journalctl -xe" for details.

  Sep 11 19:28:27 ocirhel systemd[6445]: Failed at step USER spawning /usr/share/elasticsearch/bin/elasticsearch-systemd-pre-exec: No such process
  -- Subject: Process /usr/share/elasticsearch/bin/elasticsearch-systemd-pre-exec could not be executed
  -- Defined-By: systemd
  -- Support: http://lists.freedesktop.org/mailman.../systemd-devel
  -- The process /usr/share/elasticsearch/bin/elasticsearch-systemd-pre-exec could not be executed and failed.
  --
  -- The error number returned by this process is 3.
 

例 2 （チェック時） journalctl -xe
 Sep 11 19:54:07 ocirhel polkitd[735]: Unregistered Authentication Agent for unix-process:5469:138302 (system bus name :1.61, object path /org/freedesktop/PolicyKit1/AuthenticationA
 Sep 11 19:54:08 ocirhel elasticsearch[5478]: 2018-09-11 19:54:08,124 main ERROR Could not register mbeans java.security.AccessControlException: access denied ("javax.management.MBe
 ...
 Sep 11 19:54:08 ocirhel elasticsearch[5478]: Exception in thread "main" org.elasticsearch.bootstrap.BootstrapException: java.nio.file.AccessDeniedException: /etc/elasticsearch

：例 3 （チェック時 journalctl -xe）：
 Sep 11 19:57:51 ocirhel elasticsearch[5836]: Exception in thread "main" org.elasticsearch.bootstrap.BootstrapException: java.nio.file.AccessDeniedException: /var/run/elasticsearch
 Sep 11 19:57:51 ocirhel elasticsearch[5836]: Likely root cause: java.nio.file.AccessDeniedException: /var/run/elasticsearch

例 4 ：
# systemctl status elasticsearch
...
Apr 21 20:34:54 ocirhel systemd[1]: elasticsearch.service: main process exited, code=exited, status=1/FAILURE
Apr 21 20:34:54 ocirhel systemd[1]: Unit elasticsearch.service entered failed state.
Apr 21 20:34:54 ocirhel systemd[1]: elasticsearch.service failed.

#journalctl -xe
...
Apr 23 14:02:14 ocirhel elasticsearch[4106]: Exception in thread "main" java.nio.file.AccessDeniedException: /etc/elasticsearch/scripts_rpmsave
Apr 23 14:02:14 ocirhel elasticsearch[4106]: at sun.nio.fs.UnixException.translateToIOException(UnixException.java:84)
Apr 23 14:02:14 ocirhel elasticsearch[4106]: at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
Apr 23 14:02:14 ocirhel elasticsearch[4106]: at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)
Apr 23 14:02:14 ocirhel elasticsearch[4106]: at sun.nio.fs.UnixFileSystemProvider.newByteChannel(UnixFileSystemProvider.java:214)
Apr 23 14:02:14 ocirhel elasticsearch[4106]: at java.nio.file.Files.newByteChannel(Files.java:361)
Apr 23 14:02:14 ocirhel elasticsearch[4106]: at java.nio.file.Files.newByteChannel(Files.java:407)
Apr 23 14:02:14 ocirhel elasticsearch[4106]: at java.nio.file.spi.FileSystemProvider.newInputStream(FileSystemProvider.java:384)
Apr 23 14:02:14 ocirhel elasticsearch[4106]: at java.nio.file.Files.newInputStream(Files.java:152)
Apr 23 14:02:14 ocirhel elasticsearch[4106]: at org.elasticsearch.tools.launchers.JvmOptionsParser.main(JvmOptionsParser.java:60)
Apr 23 14:02:14 ocirhel systemd[1]: elasticsearch.service: main process exited, code=exited, status=1/FAILURE
Apr 23 14:02:14 ocirhel systemd[1]: Unit elasticsearch.service entered failed state.