mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-18 13:42:02 +00:00
355 lines
9.3 KiB
Bash
Executable File
355 lines
9.3 KiB
Bash
Executable File
#!/bin/sh
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### BEGIN INIT INFO
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# Provides: clickhouse-server
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# Default-Start: 2 3 4 5
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# Default-Stop: 0 1 6
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# Required-Start:
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# Required-Stop:
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# Short-Description: Yandex clickhouse-server daemon
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### END INIT INFO
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CLICKHOUSE_USER=clickhouse
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CLICKHOUSE_GROUP=${CLICKHOUSE_USER}
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SHELL=/bin/bash
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PROGRAM=clickhouse-server
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CLICKHOUSE_GENERIC_PROGRAM=clickhouse
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CLICKHOUSE_PROGRAM_ENV=""
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EXTRACT_FROM_CONFIG=${CLICKHOUSE_GENERIC_PROGRAM}-extract-from-config
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CLICKHOUSE_CONFDIR=/etc/$PROGRAM
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CLICKHOUSE_LOGDIR=/var/log/clickhouse-server
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CLICKHOUSE_LOGDIR_USER=root
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CLICKHOUSE_DATADIR_OLD=/opt/clickhouse
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CLICKHOUSE_DATADIR=/var/lib/clickhouse
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LOCALSTATEDIR=/var/lock
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CLICKHOUSE_BINDIR=/usr/bin
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CLICKHOUSE_CRONFILE=/etc/cron.d/clickhouse-server
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CLICKHOUSE_CONFIG=$CLICKHOUSE_CONFDIR/config.xml
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LOCKFILE=$LOCALSTATEDIR/$PROGRAM
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RETVAL=0
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CLICKHOUSE_PIDDIR=/var/run/$PROGRAM
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CLICKHOUSE_PIDFILE="$CLICKHOUSE_PIDDIR/$PROGRAM.pid"
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# Some systems lack "flock"
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command -v flock >/dev/null && FLOCK=flock
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# Override defaults from optional config file
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test -f /etc/default/clickhouse && . /etc/default/clickhouse
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# On x86_64, check for required instruction set.
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if uname -mpi | grep -q 'x86_64'; then
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if ! grep -q 'sse4_2' /proc/cpuinfo; then
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# On KVM, cpuinfo could falsely not report SSE 4.2 support, so skip the check.
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if ! grep -q 'Common KVM processor' /proc/cpuinfo; then
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# Some other VMs also report wrong flags in cpuinfo.
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# Tricky way to test for instruction set:
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# create temporary binary and run it;
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# if it get caught illegal instruction signal,
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# then required instruction set is not supported really.
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#
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# Generated this way:
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# gcc -xc -Os -static -nostdlib - <<< 'void _start() { __asm__("pcmpgtq %%xmm0, %%xmm1; mov $0x3c, %%rax; xor %%rdi, %%rdi; syscall":::"memory"); }' && strip -R .note.gnu.build-id -R .comment -R .eh_frame -s ./a.out && gzip -c -9 ./a.out | base64 -w0; echo
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if ! (echo -n 'H4sICAwAW1cCA2Eub3V0AKt39XFjYmRkgAEmBjsGEI+H0QHMd4CKGyCUAMUsGJiBJDNQNUiYlQEZOKDQclB9cnD9CmCSBYqJBRxQOvBpSQobGfqIAWn8FuYnPI4fsAGyPQz/87MeZtArziguKSpJTGLQK0mtKGGgGHADMSgoYH6AhTMPNHyE0NQzYuEzYzEXFr6CBPQDANAsXKTwAQAA' | base64 -d | gzip -d > /tmp/clickhouse_test_sse42 && chmod a+x /tmp/clickhouse_test_sse42 && /tmp/clickhouse_test_sse42); then
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echo 'Warning! SSE 4.2 instruction set is not supported'
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#exit 3
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fi
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fi
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fi
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fi
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SUPPORTED_COMMANDS="{start|stop|status|restart|forcestop|forcerestart|reload|condstart|condstop|condrestart|condreload|initdb}"
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is_supported_command()
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{
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echo "$SUPPORTED_COMMANDS" | grep -E "(\{|\|)$1(\||})" &> /dev/null
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}
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is_running()
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{
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[ -r "$CLICKHOUSE_PIDFILE" ] && pgrep -s $(cat "$CLICKHOUSE_PIDFILE") 1> /dev/null 2> /dev/null
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}
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wait_for_done()
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{
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while is_running; do
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sleep 1
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done
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}
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die()
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{
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echo $1 >&2
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exit 1
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}
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# Check that configuration file is Ok.
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check_config()
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{
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if [ -x "$CLICKHOUSE_BINDIR/$EXTRACT_FROM_CONFIG" ]; then
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su -s $SHELL ${CLICKHOUSE_USER} -c "$CLICKHOUSE_BINDIR/$EXTRACT_FROM_CONFIG --config-file=\"$CLICKHOUSE_CONFIG\" --key=path" >/dev/null || die "Configuration file ${CLICKHOUSE_CONFIG} doesn't parse successfully. Won't restart server. You may use forcerestart if you are sure.";
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fi
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}
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initdb()
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{
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if [ -x "$CLICKHOUSE_BINDIR/$EXTRACT_FROM_CONFIG" ]; then
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CLICKHOUSE_DATADIR_FROM_CONFIG=$(su -s $SHELL ${CLICKHOUSE_USER} -c "$CLICKHOUSE_BINDIR/$EXTRACT_FROM_CONFIG --config-file=\"$CLICKHOUSE_CONFIG\" --key=path")
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if [ "(" "$?" -ne "0" ")" -o "(" -z "${CLICKHOUSE_DATADIR_FROM_CONFIG}" ")" ]; then
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die "Cannot obtain value of path from config file: ${CLICKHOUSE_CONFIG}";
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fi
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echo "Path to data directory in ${CLICKHOUSE_CONFIG}: ${CLICKHOUSE_DATADIR_FROM_CONFIG}"
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else
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CLICKHOUSE_DATADIR_FROM_CONFIG=$CLICKHOUSE_DATADIR
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fi
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if ! getent group ${CLICKHOUSE_USER} >/dev/null; then
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echo "Can't chown to non-existing user ${CLICKHOUSE_USER}"
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return
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fi
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if ! getent passwd ${CLICKHOUSE_GROUP} >/dev/null; then
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echo "Can't chown to non-existing group ${CLICKHOUSE_GROUP}"
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return
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fi
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if ! $(su -s $SHELL ${CLICKHOUSE_USER} -c "test -r ${CLICKHOUSE_CONFIG}"); then
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echo "Warning! clickhouse config [${CLICKHOUSE_CONFIG}] not readable by user [${CLICKHOUSE_USER}]"
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fi
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if ! $(su -s $SHELL ${CLICKHOUSE_USER} -c "test -O \"${CLICKHOUSE_DATADIR_FROM_CONFIG}\" && test -G \"${CLICKHOUSE_DATADIR_FROM_CONFIG}\""); then
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if [ $(dirname "${CLICKHOUSE_DATADIR_FROM_CONFIG}") = "/" ]; then
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echo "Directory ${CLICKHOUSE_DATADIR_FROM_CONFIG} seems too dangerous to chown."
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else
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if [ ! -e "${CLICKHOUSE_DATADIR_FROM_CONFIG}" ]; then
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echo "Creating directory ${CLICKHOUSE_DATADIR_FROM_CONFIG}"
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mkdir -p "${CLICKHOUSE_DATADIR_FROM_CONFIG}"
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fi
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echo "Changing owner of [${CLICKHOUSE_DATADIR_FROM_CONFIG}] to [${CLICKHOUSE_USER}:${CLICKHOUSE_GROUP}]"
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chown -R ${CLICKHOUSE_USER}:${CLICKHOUSE_GROUP} "${CLICKHOUSE_DATADIR_FROM_CONFIG}"
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fi
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fi
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if ! $(su -s $SHELL ${CLICKHOUSE_USER} -c "test -w ${CLICKHOUSE_LOGDIR}"); then
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echo "Changing owner of [${CLICKHOUSE_LOGDIR}/*] to [${CLICKHOUSE_USER}:${CLICKHOUSE_GROUP}]"
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chown -R ${CLICKHOUSE_USER}:${CLICKHOUSE_GROUP} ${CLICKHOUSE_LOGDIR}/*
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echo "Changing owner of [${CLICKHOUSE_LOGDIR}] to [${CLICKHOUSE_LOGDIR_USER}:${CLICKHOUSE_GROUP}]"
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chown ${CLICKHOUSE_LOGDIR_USER}:${CLICKHOUSE_GROUP} ${CLICKHOUSE_LOGDIR}
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fi
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}
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start()
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{
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[ -x $CLICKHOUSE_BINDIR/$PROGRAM ] || exit 0
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local EXIT_STATUS
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EXIT_STATUS=0
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echo -n "Start $PROGRAM service: "
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if is_running; then
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echo -n "already running "
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EXIT_STATUS=1
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else
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ulimit -n 262144
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mkdir -p $CLICKHOUSE_PIDDIR
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chown -R $CLICKHOUSE_USER:$CLICKHOUSE_GROUP $CLICKHOUSE_PIDDIR
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initdb
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if ! is_running; then
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# Lock should not be held while running child process, so we release the lock. Note: obviously, there is race condition.
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# But clickhouse-server has protection from simultaneous runs with same data directory.
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su -s $SHELL ${CLICKHOUSE_USER} -c "$FLOCK -u 9; $CLICKHOUSE_PROGRAM_ENV exec -a \"$PROGRAM\" \"$CLICKHOUSE_BINDIR/$PROGRAM\" --daemon --pid-file=\"$CLICKHOUSE_PIDFILE\" --config-file=\"$CLICKHOUSE_CONFIG\""
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EXIT_STATUS=$?
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if [ $EXIT_STATUS -ne 0 ]; then
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break
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fi
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fi
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fi
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if [ $EXIT_STATUS -eq 0 ]; then
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echo "DONE"
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else
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echo "FAILED"
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fi
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return $EXIT_STATUS
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}
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stop()
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{
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local EXIT_STATUS
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EXIT_STATUS=0
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if [ -f $CLICKHOUSE_PIDFILE ]; then
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echo -n "Stop $PROGRAM service: "
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kill -TERM $(cat "$CLICKHOUSE_PIDFILE")
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wait_for_done
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echo "DONE"
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fi
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return $EXIT_STATUS
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}
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restart()
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{
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check_config
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stop
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start
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}
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forcestop()
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{
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local EXIT_STATUS
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EXIT_STATUS=0
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echo -n "Stop forcefully $PROGRAM service: "
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kill -KILL $(cat "$CLICKHOUSE_PIDFILE")
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wait_for_done
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echo "DONE"
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return $EXIT_STATUS
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}
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forcerestart()
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{
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forcestop
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start
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}
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use_cron()
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{
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# 1. running systemd
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if [ -x "/bin/systemctl" ] && [ -f /etc/systemd/system/clickhouse-server.service ] && [ -d /run/systemd/system ]; then
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return 1
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fi
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# 2. disabled by config
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if [ -z "$CLICKHOUSE_CRONFILE" ]; then
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return 2
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fi
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return 0
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}
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enable_cron()
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{
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use_cron && sed -i 's/^#*//' "$CLICKHOUSE_CRONFILE"
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}
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disable_cron()
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{
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use_cron && sed -i 's/^#*/#/' "$CLICKHOUSE_CRONFILE"
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}
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is_cron_disabled()
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{
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use_cron || return 0
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# Assumes that either no lines are commented or all lines are commented.
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# Also please note, that currently cron file for ClickHouse has only one line (but some time ago there was more).
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grep -q -E '^#' "$CLICKHOUSE_CRONFILE";
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}
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main()
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{
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# See how we were called.
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EXIT_STATUS=0
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case "$1" in
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start)
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start && enable_cron
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;;
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stop)
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disable_cron && stop
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;;
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restart)
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restart && enable_cron
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;;
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forcestop)
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disable_cron && forcestop
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;;
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forcerestart)
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forcerestart && enable_cron
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;;
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reload)
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restart
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;;
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condstart)
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is_running || start
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;;
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condstop)
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is_running && stop
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;;
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condrestart)
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is_running && restart
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;;
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condreload)
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is_running && restart
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;;
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initdb)
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initdb
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;;
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enable_cron)
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enable_cron
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;;
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disable_cron)
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disable_cron
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;;
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*)
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echo "Usage: $0 $SUPPORTED_COMMANDS"
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exit 2
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;;
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esac
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exit $EXIT_STATUS
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}
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status()
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{
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if is_running; then
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echo "$PROGRAM service is running"
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exit 0
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else
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if is_cron_disabled; then
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echo "$PROGRAM service is stopped";
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else
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echo "$PROGRAM: process unexpectedly terminated"
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fi
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exit 3
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fi
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}
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# Running commands without need of locking
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case "$1" in
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status)
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status
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;;
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esac
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(
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if $FLOCK -n 9; then
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main "$@"
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else
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echo "Init script is already running" && exit 1
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fi
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) 9> $LOCKFILE
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