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POMonit fails to start process
 

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    <p>I've written a scrip that works fine to start and stop a server.</p> <pre><code>#!/bin/bash PID_FILE='/var/run/rserve.pid' start() { touch $PID_FILE eval "/usr/bin/R CMD Rserve" PID=$(ps aux | grep Rserve | grep -v grep | awk '{print $2}') echo "Starting Rserve with PID $PID" echo $PID &gt; $PID_FILE } stop () { pkill Rserve rm $PID_FILE echo "Stopping Rserve" } case $1 in start) start ;; stop) stop ;; *) echo "usage: rserve {start|stop}" ;; esac exit 0 </code></pre> <p>If I start it by running</p> <pre><code>rserve start </code></pre> <p>and then start <code>monit</code> it will correctly capture the PID and the server:</p> <pre><code>The Monit daemon 5.3.2 uptime: 0m Remote Host 'localhost' status Online with all services monitoring status Monitored port response time 0.000s to localhost:6311 [DEFAULT via TCP] data collected Mon, 13 May 2013 20:03:50 System 'system_gauss' status Running monitoring status Monitored load average [0.37] [0.29] [0.25] cpu 0.0%us 0.2%sy 0.0%wa memory usage 524044 kB [25.6%] swap usage 4848 kB [0.1%] data collected Mon, 13 May 2013 20:03:50 </code></pre> <p>If I stop it, it will properly kill the process and unmonitor it. However if I start it again, it won't start the server again:</p> <pre><code>ps ax | grep Rserve | grep -vc grep 1 monit stop localhost ps ax | grep Rserve | grep -vc grep 0 monit start localhost [UTC May 13 20:07:24] info : 'localhost' start on user request [UTC May 13 20:07:24] info : monit daemon at 4370 awakened [UTC May 13 20:07:24] info : Awakened by User defined signal 1 [UTC May 13 20:07:24] info : 'localhost' start: /usr/bin/rserve [UTC May 13 20:07:24] info : 'localhost' start action done [UTC May 13 20:07:34] error : 'localhost' failed, cannot open a connection to INET[localhost:6311] via TCP </code></pre> <p>Here is the monitrc:</p> <pre><code>check host localhost with address 127.0.0.1 start = "/usr/bin/rserve start" stop = "/usr/bin/rserve stop" if failed host localhost port 6311 type tcp with timeout 15 seconds for 5 cycles then restart </code></pre>
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    1. USJoão Daniel
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    1. COCould it be your program needs more then 10 seconds to start up?
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      1. USWrikken
    2. COI also tried timeout 30, and it takes less than 5 seconds to start up. Even if I put the original command "R CMD Rserve" with the "\bin\bash -c" on the monitrc, it won't work. It seems it can't start it from monit daemon.
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      1. USJoão Daniel
    3. CODid you ever figure this out? I'm having similar problems.
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      1. USStFS
 

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