Hi, glad it works out so well. Perhaps you could try the same thing with the server too, see how that pans out:
I tried out your next script too and it works like a charm! I used to spend hours trying to keep track of what was going on with programs. I often had so many terminals up and running it was just plain ridiculous. Also, the processes would never die and it used to mess up the experiments I was trying to run. Truly, thank you very much for all your precious help, Scrutinizer.
My next job will be to go through your scripts and try to comment them out in detail. I will be back with questions, I'm sure. So, stand by. :-)
Gratefully,
DTW
P.S: Also if you PM me your name, I can put it in as the primary author for these scripts. I really don't want to take the credit for work that I've not done.
---------- Post updated at 04:28 PM ---------- Previous update was at 03:53 PM ----------
Let's consider this script, first:
Code:
#!/bin/bash
#
# Usage
# From the agent directory:
# ./run-all-agents AgentName1 AgentName2 ...
#
trap killsubs INT
killsubs()
{
echo "CTRL-C was pressed"
jobs -p|xargs kill
echo "Jobs were killed"
exit
}
TAC_AGENT_HOME=`pwd`
LIB=${TAC_AGENT_HOME}/lib
CLASSPATH=.
CLASSPATH=${CLASSPATH}:${TAC_AGENT_HOME}/bin
for i in $( ls ${LIB}/*.jar ); do
CLASSPATH=${CLASSPATH}:$i
done
for i in "$@"
do
java -server -Xmx1024M -Xms512M -cp $CLASSPATH edu.umich.eecs.tac.aa.agentware.Main -config "config/$i.conf" &
done
wait
OK, so, I'm trying to get an idea of the high-level flow here. According to me this is what is executed first:
Code:
TAC_AGENT_HOME=`pwd`
LIB=${TAC_AGENT_HOME}/lib
CLASSPATH=.
CLASSPATH=${CLASSPATH}:${TAC_AGENT_HOME}/bin
for i in $( ls ${LIB}/*.jar ); do
CLASSPATH=${CLASSPATH}:$i
done
for i in "$@"
do
java -server -Xmx1024M -Xms512M -cp $CLASSPATH edu.umich.eecs.tac.aa.agentware.Main -config "config/$i.conf" &
done
wait
This essentially fires up the programs by taking them in as command line arguments and starting them each off as a background process. After it has done this, it waits. Then if Ctrl+C is executed, this piece of the code is executed:
Code:
trap killsubs INT
killsubs()
{
echo "CTRL-C was pressed"
jobs -p|xargs kill
echo "Jobs were killed"
exit
}
I think the "INT" stands for interrupts (which is caused by the user hitting Ctrl+C). Then, the routine "killsubs()" is called. This first outputs the line "Ctrl -C was pressed". Then it gets all the PIDs of the jobs. I'm not sure what -p does. On the man pages, we have:
Quote:
-p Display only the process IDs for the process group leaders of the selected jobs.
What does that mean? "xargs" looks like it gets all the items from the standard input and then executes the command "kill" on them. Then, we inform the user that the jobs were killed and exit cleanly. Is that a fair first pass?
Thanks,
DTW
---------- Post updated at 05:45 PM ---------- Previous update was at 04:28 PM ----------
I have a quick question:
Code:
trap killsubs INT
killsubs()
{
echo "CTRL-C was pressed"
jobs -p|xargs kill
echo "Jobs were killed"
exit
}
Is there any way we could nicely print out the names of the jobs we killed? I tried putting in:
Code:
trap killsubs INT
killsubs()
{
echo "CTRL+C was pressed"
jobs -p|xargs echo
jobs -p|xargs kill
echo "Agents were killed!"
exit
}
But this printed only the PIDs.
Thanks,
DTW
Last edited by DTriniWay; 01-21-2010 at 05:05 PM..
trap killsubs INT
killsubs()
{
echo "CTRL+C was pressed"
jobs -l | awk '{ print $i }'
jobs -p|xargs kill
echo "Agents were killed!"
exit
}
I tried the following piece of code and changed i from 0 right up to 13 but I didn't see the names of my programs anywhere. :-( Is there anything else I can try?
Thanks,
DTW
---------- Post updated at 05:17 PM ---------- Previous update was at 02:41 PM ----------
So, I finally managed to get the names working. I'll post more, later. :-)
OK, so I'm back. Apparently, adding this line to the script did the trick:
Code:
jobs -p | while read pid;do ps -p $pid -oargs | perl -pe 's/.*?config\/(.*?).conf/$1/';done | grep -v COMMAND
I had a buddy help me write that out. I have no idea what it exactly does in detail, though. :-)
So, the full script is now:
Code:
#!/bin/bash
#
# Usage
# From the "Client" directory type:
# ./run-these-agents AgentName1 AgentName2 ...
#
trap killsubs INT
killsubs()
{
echo
echo "CTRL+C was pressed"
echo "The following agents were killed!"
jobs -p | while read pid;do ps -p $pid -oargs | perl -pe 's/.*?config\/(.*?).conf/$1/';done | grep -v COMMAND
jobs -p|xargs kill
exit
}
TAC_AGENT_HOME=`pwd`
LIB=${TAC_AGENT_HOME}/lib
CLASSPATH=.
CLASSPATH=${CLASSPATH}:${TAC_AGENT_HOME}/bin
for i in $( ls ${LIB}/*.jar ); do
CLASSPATH=${CLASSPATH}:$i
done
for i in "$@"
do
java -server -Xmx1024M -Xms512M -cp $CLASSPATH edu.umich.eecs.tac.aa.agentware.Main -config "config/$i.conf" &
done
wait
Thanks to all who contributed in making this script work for me. I'm grateful for your help.
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