问题描述
我无法更改本地ES索引位置-无法修改path.data。
这可能是一些基本的错误，但是我很固执，非常感谢您的协助。
所以： 如果在elasticsearch.yml中未做任何更改，则在Centos 7下重新安装ES 7.8.1的本地安装，一切将正常运行。 但是，如果我尝试更改elasticsearch.yml：
# path.data: /var/lib/elasticsearch'
path.data: /run/media/admin/bvv2/elasticsearch/
（即尝试指向外部磁盘），在systemctl启动elasticsearch之后我得到：
Job for elasticsearch.service Failed because the control process exited with error code. See "systemctl status elasticsearch.service" and "journalctl -xe" for details.
在“ systemctl status elasticsearch.service”中：
● elasticsearch.service - Elasticsearch
Loaded: loaded (/etc/systemd/system/elasticsearch.service; enabled; vendor preset: disabled)
Active: Failed (Result: exit-code) since Mon 2020-08-17 16:23:16 MSK; 5min ago
Docs: https://www.elastic.co
Process: 12951 ExecStart=/usr/share/elasticsearch/bin/systemd-entrypoint -p ${PID_DIR}/elasticsearch.pid --quiet (code=exited,status=1/FAILURE)
Main PID: 12951 (code=exited,status=1/FAILURE)
Aug 17 16:23:16 bvvcomp systemd-entrypoint[12951]: at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86)
Aug 17 16:23:16 bvvcomp systemd-entrypoint[12951]: at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:127)
Aug 17 16:23:16 bvvcomp systemd-entrypoint[12951]: at org.elasticsearch.cli.Command.main(Command.java:90)
Aug 17 16:23:16 bvvcomp systemd-entrypoint[12951]: at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:126)
Aug 17 16:23:16 bvvcomp systemd-entrypoint[12951]: at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92)
Aug 17 16:23:16 bvvcomp systemd-entrypoint[12951]: For complete error details,refer to the log at /var/log/elasticsearch/elasticsearch.log
Aug 17 16:23:16 bvvcomp systemd[1]: elasticsearch.service: main process exited,code=exited,status=1/FAILURE
Aug 17 16:23:16 bvvcomp systemd[1]: Failed to start Elasticsearch.
Aug 17 16:23:16 bvvcomp systemd[1]: Unit elasticsearch.service entered Failed state.
Aug 17 16:23:16 bvvcomp systemd[1]: elasticsearch.service Failed.
在journalctl-xe中：
Aug 17 16:29:20 bvvcomp NetworkManager[1112]: <info> [1597670960.1568] dhcp4 (wlp2s0): gateway 192.168.1.1
Aug 17 16:29:20 bvvcomp NetworkManager[1112]: <info> [1597670960.1569] dhcp4 (wlp2s0): lease time 25200
Aug 17 16:29:20 bvvcomp NetworkManager[1112]: <info> [1597670960.1569] dhcp4 (wlp2s0): nameserver '192.168.1.1'
Aug 17 16:29:20 bvvcomp NetworkManager[1112]: <info> [1597670960.1569] dhcp4 (wlp2s0): state changed bound -> bound
Aug 17 16:29:20 bvvcomp dbus[904]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
Aug 17 16:29:20 bvvcomp dhclient[1325]: bound to 192.168.1.141 -- renewal in 12352 seconds.
Aug 17 16:29:20 bvvcomp systemd[1]: Starting Network Manager Script dispatcher Service...
-- Subject: Unit NetworkManager-dispatcher.service has begun start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit NetworkManager-dispatcher.service has begun starting up.
Aug 17 16:29:20 bvvcomp dbus[904]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Aug 17 16:29:20 bvvcomp systemd[1]: Started Network Manager Script dispatcher Service.
-- Subject: Unit NetworkManager-dispatcher.service has finished start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit NetworkManager-dispatcher.service has finished starting up.
--
-- The start-up result is done.
Aug 17 16:29:20 bvvcomp nm-dispatcher[13569]: req:1 'dhcp4-change' [wlp2s0]: new request (4 scripts)
Aug 17 16:29:20 bvvcomp nm-dispatcher[13569]: req:1 'dhcp4-change' [wlp2s0]: start running ordered scripts...
不幸的是，这些建议没有帮助：
How to move elasticsearch data directory?;
elasticsearch changing path.logs and/or path.data - fails to start;
Elasticsearch after change path.data,unable to access 'default.path.data';
那可能是新问题，版本7.x有界吗？
谢谢
更新1-错误日志（/var/log/elasticsearch/elasticsearch.log）：
[2020-08-18T01:30:00,000][INFO ][o.e.x.m.MlDailyMaintenanceService] [bvvcomp] triggering scheduled [ML] maintenance tasks
[2020-08-18T01:30:00,014][INFO ][o.e.x.m.a.TransportDeleteExpiredDataAction] [bvvcomp] Deleting expired data
[2020-08-18T01:30:00,052][INFO ][o.e.x.m.a.TransportDeleteExpiredDataAction] [bvvcomp] Completed deletion of expired ML data
[2020-08-18T01:30:00,053][INFO ][o.e.x.m.MlDailyMaintenanceService] [bvvcomp] Successfully completed [ML] maintenance tasks
[2020-08-18T04:30:00,017][INFO ][o.e.x.s.SnapshotRetentionTask] [bvvcomp] starting SLM retention snapshot cleanup task
[2020-08-18T04:30:00,025][INFO ][o.e.x.s.SnapshotRetentionTask] [bvvcomp] there are no repositories to fetch,SLM retention snapshot cleanup task complete
[2020-08-18T05:27:08,457][INFO ][o.e.n.Node ] [bvvcomp] stopping ...
[2020-08-18T05:27:08,482][INFO ][o.e.x.w.WatcherService ] [bvvcomp] stopping watch service,reason [shutdown initiated]
[2020-08-18T05:27:08,483][INFO ][o.e.x.w.WatcherLifeCycleService] [bvvcomp] watcher has stopped and shutdown
[2020-08-18T05:27:08,495][INFO ][o.e.x.m.p.l.CppLogMessageHandler] [bvvcomp] [controller/21903] [Main.cc@155] ML controller exiting
[2020-08-18T05:27:08,497][INFO ][o.e.x.m.p.NativeController] [bvvcomp] Native controller process has stopped - no new native processes can be started
[2020-08-18T05:27:08,540][INFO ][o.e.n.Node ] [bvvcomp] stopped
[2020-08-18T05:27:08,541][INFO ][o.e.n.Node ] [bvvcomp] closing ...
[2020-08-18T05:27:08,585][INFO ][o.e.n.Node ] [bvvcomp] closed
[2020-08-18T05:27:19,077][ERROR][o.e.b.Bootstrap ] [bvvcomp] Exception
java.lang.IllegalStateException: Unable to access 'path.data' (/run/media/admin/bvv2/elasticsearch)
at org.elasticsearch.bootstrap.FilePermissionUtils.addDirectoryPath(FilePermissionUtils.java:70) ~[elasticsearch-7.8.1.jar:7.8.1]
at org.elasticsearch.bootstrap.Security.addFilePermissions(Security.java:297) ~[elasticsearch-7.8.1.jar:7.8.1]
at org.elasticsearch.bootstrap.Security.createPermissions(Security.java:252) ~[elasticsearch-7.8.1.jar:7.8.1]
at org.elasticsearch.bootstrap.Security.configure(Security.java:121) ~[elasticsearch-7.8.1.jar:7.8.1]
at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:222) ~[elasticsearch-7.8.1.jar:7.8.1]
at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:393) [elasticsearch-7.8.1.jar:7.8.1]
at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:170) [elasticsearch-7.8.1.jar:7.8.1]
at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:161) [elasticsearch-7.8.1.jar:7.8.1]
at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) [elasticsearch-7.8.1.jar:7.8.1]
at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:127) [elasticsearch-cli-7.8.1.jar:7.8.1]
at org.elasticsearch.cli.Command.main(Command.java:90) [elasticsearch-cli-7.8.1.jar:7.8.1]
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:126) [elasticsearch-7.8.1.jar:7.8.1]
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) [elasticsearch-7.8.1.jar:7.8.1]
Caused by: java.nio.file.AccessDeniedException: /run/media/admin/bvv2
at sun.nio.fs.UnixException.translatetoIOException(UnixException.java:90) ~[?:?]
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:111) ~[?:?]
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:116) ~[?:?]
at sun.nio.fs.UnixFileSystemProvider.checkAccess(UnixFileSystemProvider.java:313) ~[?:?]
at java.nio.file.Files.createDirectories(Files.java:766) ~[?:?]
at org.elasticsearch.bootstrap.Security.ensureDirectoryExists(Security.java:389) ~[elasticsearch-7.8.1.jar:7.8.1]
at org.elasticsearch.bootstrap.FilePermissionUtils.addDirectoryPath(FilePermissionUtils.java:68) ~[elasticsearch-7.8.1.jar:7.8.1]
... 12 more
权限：
ls -l /run/media/admin/bvv2
drwxrwsrwx 3 elasticsearch elasticsearch 4096 Aug 17 17:26 elasticsearch
ls -l /run/media/admin
total 4
drwxr-xr-x 11 admin admin 4096 Aug 17 13:22 bvv2
解决方法
我遇到了类似的错误，它是由不正确的父目录权限引起的。
其中一个父目录不允许其他 unix 用户访问该目录，更具体地说，该目录的权限是 drwx--x---+。 Elasticsearch 在将权限更改为 drwx--x--x+(chmod 711) 后启动。你也可以试试。