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Better service management scripts (#532)
* Scripts to manage hillview services
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Mihai Budiu
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Aug 21, 2019
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,20 @@ | ||
| #!/bin/sh | ||
| # Runs another process in a loop | ||
|
|
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| if [ $# -le 1 ]; then | ||
| echo "Usage: forever.sh pidfile command" | ||
| echo "Re-runs command every time it terminates" | ||
| echo "Writes its own pid in pidfile" | ||
| exit 1 | ||
| fi | ||
|
|
||
| pidfile=$1 | ||
| shift | ||
|
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| echo "Running $1 forever" | ||
| echo $$ >${pidfile} | ||
| while /bin/true; do | ||
| $* | ||
| sleep 2 | ||
| echo "Restarting..." | ||
| done |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,66 @@ | ||
| #!/bin/bash | ||
| # This is teamplate for a script that manages a hillview aggregator as a Unix service. | ||
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| #REPLACE_WITH_VARIABLES | ||
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| FOREVERPID="forever-aggregator.pid" | ||
| PIDFILE="hillview-aggregator.pid" | ||
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| cd ${SERVICE_DIRECTORY} | ||
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| start() { | ||
| if [ "x${CLEANUP}" == "x1" ]; then | ||
| rm -f hillview-agg.log hillview-agg.log.* hillview-agg.log*.lck | ||
| fi | ||
| ./forever.sh ${FOREVERPID} nohup java -ea -Dlog4j.configurationFile=./log4j.properties -server -Xmx${HEAPSIZE} -jar ${SERVICE_DIRECTORY}/hillview-server-jar-with-dependencies.jar ${SERVICE_DIRECTORY}/workers 0.0.0.0:${AGGREGATOR_PORT} >nohup.out 2>&1 & | ||
| } | ||
|
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||
| killbypid() { | ||
| local PIDFILE=$1 | ||
| if [ -f ${PIDFILE} ]; then | ||
| # First try to find the service pid | ||
| read LINE < ${SERVICE_DIRECTORY}/${PIDFILE} | ||
| if [ -d "/proc/${LINE}" ]; then | ||
| echo "Killing $2 process ${LINE}" | ||
| kill ${LINE} | ||
| fi | ||
| rm -f ${SERVICE_DIRECTORY}/${PIDFILE} | ||
| return 0 | ||
| else | ||
| return 1 | ||
| fi | ||
| } | ||
|
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||
| stop() { | ||
| killbypid ${FOREVERPID} forever | ||
| killbypid ${PIDFILE} hillview-server | ||
| } | ||
|
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| status() { | ||
| if [ -f ${PIDFILE} ]; then | ||
| read LINE < ${SERVICE_DIRECTORY}/${PIDFILE} | ||
| if [ -d "/proc/${LINE}" ]; then | ||
| echo "Process seems to be running" | ||
| return 0 | ||
| fi | ||
| fi | ||
| echo "Could not find running aggregator" | ||
| } | ||
|
|
||
| case ${1} in | ||
| start) | ||
| start | ||
| ;; | ||
| stop) | ||
| stop | ||
| ;; | ||
| restart) | ||
| stop | ||
| start | ||
| ;; | ||
| status) | ||
| status | ||
| ;; | ||
| *) | ||
| echo "Usage: $0 {start|stop|restart|status}" | ||
| esac |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| #!/bin/bash | ||
| # This is teamplate for a script that manages a hillview web server as a service. | ||
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| #REPLACE_WITH_VARIABLES | ||
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| # File storing PID of the hillview worker | ||
| PIDFILE="hillview-webserevr.pid" | ||
| cd ${SERVICE_DIRECTORY} | ||
|
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| start() { | ||
| if [ "x${CLEANUP}" == "x1" ]; then | ||
| rm -f hillview-web.log hillview-web.log.* hillview-web.log*.lck | ||
| fi | ||
| export WEB_CLUSTER_DESCRIPTOR=serverlist | ||
| nohup ./${TOMCAT}/bin/startup.sh & | ||
| } | ||
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| stop() { | ||
| if pgrep -f tomcat; then | ||
| ${SERVICE_DIRECTORY}"/"${TOMCAT}/bin/shutdown.sh | ||
| echo Stopped | ||
| else | ||
| echo "Web server already stopped" | ||
| fi | ||
| pkill -f Bootstrap | ||
| true | ||
| } | ||
|
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| status() { | ||
| # This assumes there's a single tomcat on the machine, which may not be true... | ||
| if ! pgrep -f tomcat; then | ||
| echo "Web server not running" | ||
| else | ||
| echo "Web server running" | ||
| fi | ||
| true | ||
| } | ||
|
|
||
| case ${1} in | ||
| start) | ||
| start | ||
| ;; | ||
| stop) | ||
| stop | ||
| ;; | ||
| restart) | ||
| stop | ||
| start | ||
| ;; | ||
| status) | ||
| status | ||
| ;; | ||
| *) | ||
| echo "Usage: $0 {start|stop|restart|status}" | ||
| esac |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| #!/bin/bash | ||
| # This is teamplate for a script that manages a hillview worker as a service. | ||
|
|
||
| #REPLACE_WITH_VARIABLES | ||
|
|
||
| # File storing PID of the hillview worker | ||
| PIDFILE="hillview-worker.pid" | ||
| # File storing PID of the forever process that runs the hillview worker | ||
| FOREVERPID="forever-worker.pid" | ||
|
|
||
| cd ${SERVICE_DIRECTORY} | ||
|
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||
| start() { | ||
| echo "Starting worker" | ||
| if [ "x${CLEANUP}" == "x1" ]; then | ||
| rm -f hillview.log hillview.log.* hillview.log*.lck | ||
| fi | ||
| ./forever.sh ${FOREVERPID} nohup java -ea -Dlog4j.configurationFile=./log4j.properties -server -Xmx${HEAPSIZE} -jar ${SERVICE_DIRECTORY}/hillview-server-jar-with-dependencies.jar 0.0.0.0:${WORKER_PORT} >nohup.out 2>&1 & | ||
| } | ||
|
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||
| killbypid() { | ||
| local PIDFILE=$1 | ||
| if [ -f ${PIDFILE} ]; then | ||
| # First try to find the service pid | ||
| read LINE < ${SERVICE_DIRECTORY}/${PIDFILE} | ||
| if [ -d "/proc/${LINE}" ]; then | ||
| echo "Killing $2 process ${LINE}" | ||
| kill ${LINE} | ||
| fi | ||
| rm -f ${SERVICE_DIRECTORY}/${PIDFILE} | ||
| return 0 | ||
| else | ||
| return 1 | ||
| fi | ||
| } | ||
|
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||
| stop() { | ||
| killbypid ${FOREVERPID} forever | ||
| killbypid ${PIDFILE} hillview-server | ||
| if [ $? -ne 0 ]; then | ||
| # Kill it by name; may have collateral damage | ||
| if pgrep -f hillview-server; then | ||
| pkill -f hillview-server | ||
| echo "Stopped" | ||
| else | ||
| echo "Already stopped" | ||
| fi | ||
| fi | ||
| true | ||
| } | ||
|
|
||
| status() { | ||
| if [ -f ${PIDFILE} ]; then | ||
| read LINE < ${PIDFILE} | ||
| if [ -d "/proc/${LINE}" ]; then | ||
| echo "Process seems to be running" | ||
| return 0 | ||
| fi | ||
| fi | ||
| echo "Could not find running worker" | ||
| } | ||
|
|
||
| case ${1} in | ||
| start) | ||
| start | ||
| ;; | ||
| stop) | ||
| stop | ||
| ;; | ||
| restart) | ||
| stop | ||
| start | ||
| ;; | ||
| status) | ||
| status | ||
| ;; | ||
| *) | ||
| echo "Usage: $0 {start|stop|restart|status}" | ||
| esac |
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