Bug 998271

Created attachment 787821 [details]
Sample shell script which implements the current requeue task steps

Description of problem:
If a task fails, today we have the following workaround instructions:
https://docspace.corp.redhat.com/docs/DOC-128956#Requeueing_Failed_Tasks

"If a Task fails before it complete:
    The failed task would have created the required directory structure.
1. Download the vmcore and extract it to the crash/ sub-directory of the task.
2. Delete the status, started_time, finished_time, and progress files in the task directory. Also delete the files in the misc sub-directory.
3. retrace-server-worker <task_id>
4.   Make sure the owner/group of the files and directories are set to values that allow others to access the Task."

It would be good to put this into a 'requeue' command so people don't start messing with files in the directory or get the requeue steps wrong.  I created a shell script which seems to do the above:

$ cat ~/bin/retrace-server-task-requeue 
#!/bin/sh
# Automate some steps to requeue a retrace vmcore once it's placed into <retrace>/tasks/<taskid>/crash
# https://docspace.corp.redhat.com/docs/DOC-128956#Workaround_Instructions
#
ARGS=1
E_BADARGS=65
if [ $# -ne "$ARGS" ]; then
        echo "Usage: `basename $0` [retrace-task-id]"
        exit $E_BADARGS
fi
TASK=$1
RETRACEDIR=$(awk '/SaveDir =/ { print $3 }' /etc/retrace-server.conf)
if [ ! -d $RETRACEDIR/$TASK ]; then
        echo "Retrace task $TASK does not exist in $RETRACEDIR"
        exit $E_BADARGS
fi
for f in status started_time finished_time progress; do rm -f $RETRACEDIR/$TASK/$f; done
rm -rf $RETRACEDIR/$TASK/misc/*
retrace-server-worker $TASK



Version-Release number of selected component (if applicable):
retrace-server-1.9-6.el6.noarch


How reproducible:
Everytime if you have a core which fails.


Steps to Reproduce:
Queue a vmcore which fails (for example, maybe a split vmcore?).



Actual results:
You have to follow these manual instructions:
https://docspace.corp.redhat.com/docs/DOC-128956#Workaround_Instructions


Expected results:
Be able to run something like this:
$ retrace-server-requeue <taskid>


Additional info:
If possible, we may be able to improve the handling of split vmcores as well.  as I recall though, there's a problem with someone replacing the file in 'crash/vmcore' with a new one.