04e73e17e8
On Ubuntu, if the Zookeeper service is already running, attempting to start it again fails with non-zero exit code. This patch detects whether ZK is already started before trying to start it. Change-Id: If1257152de01fe5fe0351fdbb538bce083edbec0 Closes-Bug: #1513741
92 lines
2.2 KiB
Bash
92 lines
2.2 KiB
Bash
#!/bin/bash
|
|
#
|
|
# lib/zookeeper
|
|
# Functions to control the installation and configuration of **zookeeper**
|
|
|
|
# Dependencies:
|
|
#
|
|
# - ``functions`` file
|
|
|
|
# ``stack.sh`` calls the entry points in this order:
|
|
#
|
|
# - is_zookeeper_enabled
|
|
# - install_zookeeper
|
|
# - configure_zookeeper
|
|
# - init_zookeeper
|
|
# - start_zookeeper
|
|
# - stop_zookeeper
|
|
# - cleanup_zookeeper
|
|
|
|
# Save trace setting
|
|
XTRACE=$(set +o | grep xtrace)
|
|
set +o xtrace
|
|
|
|
|
|
# Defaults
|
|
# --------
|
|
|
|
# <define global variables here that belong to this project>
|
|
|
|
# Set up default directories
|
|
ZOOKEEPER_DATA_DIR=$DEST/data/zookeeper
|
|
ZOOKEEPER_CONF_DIR=/etc/zookeeper
|
|
|
|
|
|
# Entry Points
|
|
# ------------
|
|
|
|
# Test if any zookeeper service us enabled
|
|
# is_zookeeper_enabled
|
|
function is_zookeeper_enabled {
|
|
[[ ,${ENABLED_SERVICES}, =~ ,"zookeeper", ]] && return 0
|
|
return 1
|
|
}
|
|
|
|
# cleanup_zookeeper() - Remove residual data files, anything left over from previous
|
|
# runs that a clean run would need to clean up
|
|
function cleanup_zookeeper {
|
|
sudo rm -rf $ZOOKEEPER_DATA_DIR
|
|
}
|
|
|
|
# configure_zookeeper() - Set config files, create data dirs, etc
|
|
function configure_zookeeper {
|
|
sudo cp $FILES/zookeeper/* $ZOOKEEPER_CONF_DIR
|
|
sudo sed -i -e 's|.*dataDir.*|dataDir='$ZOOKEEPER_DATA_DIR'|' $ZOOKEEPER_CONF_DIR/zoo.cfg
|
|
}
|
|
|
|
# init_zookeeper() - Initialize databases, etc.
|
|
function init_zookeeper {
|
|
# clean up from previous (possibly aborted) runs
|
|
# create required data files
|
|
sudo rm -rf $ZOOKEEPER_DATA_DIR
|
|
sudo mkdir -p $ZOOKEEPER_DATA_DIR
|
|
}
|
|
|
|
# install_zookeeper() - Collect source and prepare
|
|
function install_zookeeper {
|
|
install_package zookeeperd
|
|
}
|
|
|
|
# start_zookeeper() - Start running processes, including screen
|
|
function start_zookeeper {
|
|
# Starting twice Zookeeper on Ubuntu exits with error code 1. See LP#1513741
|
|
# Match both systemd and sysvinit output
|
|
local running="(active \(running\)|start/running)"
|
|
if ! is_ubuntu || ! sudo /usr/sbin/service zookeeper status | egrep -q "$running"; then
|
|
start_service zookeeper
|
|
fi
|
|
}
|
|
|
|
# stop_zookeeper() - Stop running processes (non-screen)
|
|
function stop_zookeeper {
|
|
stop_service zookeeper
|
|
}
|
|
|
|
# Restore xtrace
|
|
$XTRACE
|
|
|
|
# Tell emacs to use shell-script-mode
|
|
## Local variables:
|
|
## mode: shell-script
|
|
## End:
|