# Copyright OpenSearch Contributors
# SPDX-License-Identifier: Apache-2.0
#
# The OpenSearch Contributors require contributions made to
# this file be licensed under the Apache-2.0 license or a
# compatible open source license.

# Description:
# Default opensearch.service file

[Unit]
Description=OpenSearch
Documentation=https://opensearch.org/

[Service]
Type=notify
RuntimeDirectory=opensearch
PrivateTmp=true
EnvironmentFile=-/etc/default/opensearch
EnvironmentFile=-/etc/sysconfig/opensearch
WorkingDirectory=/usr/share/opensearch
User=opensearch
Group=opensearch
ExecStart=/usr/share/opensearch/bin/systemd-entrypoint -p ${PID_DIR}/opensearch.pid --quiet

# StandardOutput is configured to redirect to journalctl since
# some error messages may be logged in standard output before
# opensearch logging system is initialized. OpenSearch
# stores its logs in /var/log/opensearch and does not use
# journalctl by default. If you also want to enable journalctl
# logging, you can simply remove the "quiet" option from ExecStart.
StandardOutput=journal
StandardError=inherit

# Specifies the maximum file descriptor number that can be opened by this process
LimitNOFILE=65535

# Specifies the maximum number of processes
LimitNPROC=4096

# Specifies the maximum size of virtual memory
LimitAS=infinity

# Specifies the maximum file size
LimitFSIZE=infinity

# Disable timeout logic and wait until process is stopped
TimeoutStopSec=0

# SIGTERM signal is used to stop the Java process
KillSignal=SIGTERM

# Send the signal only to the JVM rather than its control group
KillMode=process

# Java process is never killed
SendSIGKILL=no

# When a JVM receives a SIGTERM signal it exits with code 143
SuccessExitStatus=143

# Allow a slow startup before the systemd notifier module kicks in to extend the timeout
TimeoutStartSec=75

[Install]
WantedBy=multi-user.target