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6090c51fc5
This commit adds a -q/--quiet option to Elasticsearch so that it does not log anything in the console and closes stdout & stderr streams. This is useful for SystemD to avoid duplicate logs in both journalctl and /var/log/elasticsearch/elasticsearch.log while still allows the JVM to print error messages in stdout/stderr if needed. closes #17220
54 lines
1.8 KiB
Plaintext
54 lines
1.8 KiB
Plaintext
==== Running Elasticsearch with `systemd`
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To configure Elasticsearch to start automatically when the system boots up,
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run the following commands:
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[source,sh]
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--------------------------------------------------
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sudo /bin/systemctl daemon-reload
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sudo /bin/systemctl enable elasticsearch.service
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--------------------------------------------------
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Elasticsearch can be started and stopped as follows:
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[source,sh]
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--------------------------------------------
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sudo systemctl start elasticsearch.service
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sudo systemctl stop elasticsearch.service
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--------------------------------------------
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These commands provide no feedback as to whether Elasticsearch was started
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successfully or not. Instead, this information will be written in the log
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files located in `/var/log/elasticsearch/`.
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By default the Elasticsearch service doesn't log information in the `systemd`
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journal. To enable `journalctl` logging, the `--quiet` option must be removed
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from the `ExecStart` command line in the `elasticsearch.service` file.
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When `systemd` logging is enabled, the logging information are available using
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the `journalctl` commands:
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To tail the journal:
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[source,sh]
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--------------------------------------------
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sudo journalctl -f
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--------------------------------------------
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To list journal entries for the elasticsearch service:
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[source,sh]
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--------------------------------------------
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sudo journalctl --unit elasticsearch
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--------------------------------------------
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To list journal entries for the elasticsearch service starting from a given time:
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[source,sh]
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--------------------------------------------
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sudo journalctl --unit elasticsearch --since "2016-10-30 18:17:16"
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--------------------------------------------
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Check `man journalctl` or https://www.freedesktop.org/software/systemd/man/journalctl.html for
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more command line options.
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