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Full Discussion: AIX PID Recycling
Operating Systems AIX AIX PID Recycling Post 302364101 by steadyonabix on Thursday 22nd of October 2009 05:25:37 AM
Old 10-22-2009
AIX PID Recycling

Had a bizzare problem last night with one of our tools running on an AIX server that has not come up before. The tool has been in use for over a year without this problem showing up.The tool basically does this: -Kick off a background task and record the PIDGo and do a bunch of other taskswait for the background task to completeIt seems that AIX immediately reuses PID's as they become available rather than incrementing the last PID and using that. So what happened last night was that the background task completed while the tool was doing the other stuff and the PID ended up being re assigned to the wait statement! So it sat there all night waiting for itself to complete......Has anyone come across this before?
 

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ABRT-RETRACE-CLIEN(1)						    ABRT Manual 					     ABRT-RETRACE-CLIEN(1)

NAME
abrt-retrace-client - Handles the communication with Retrace server. SYNOPSIS
abrt-retrace-client <operation> [options] DESCRIPTION
This tool is able to communicate with Retrace server: create a new task, ask about task's status, download log or backtrace of a finished task. Integration with libreport events abrt-retrace-client can be used as an analyzer for application crashes which dump core. Example usage in report_event.conf: EVENT=analyze analyzer=CCpp abrt-retrace-client OPERATIONS
create Creates a new task. Prints task ID and password to stdout. Either -d or -c is required. status Prints task's status to stdout. Both -t and -p are required. log Prints finished task's log to stdout. Both -t and -p are required. backtrace Print finished task's backtrace to stdout. Both -t and -p are required. batch Runs all operations in one step: creates a new task, periodically asks for status (the period is specified by --status-delay option) and downloads the result when finished. If the task was successful backtrace file is saved, otherwise log is printed to stdout. Either -c or -d is required. OPTIONS
-v, --verbose be verbose -s, --syslog log to syslog -k, --insecure allow insecure connection to retrace server --url URL retrace server URL --headers (debug) show received HTTP headers -d, --dir DIR read data from ABRT problem directory -c, --core COREDUMP read data from coredump -l, --status-delay delay for polling operations (seconds) --no-unlink (debug) do not delete temporary archive created in /tmp -t, --task ID ID of the task on server -p, --password PWD password of the task on server AUTHORS
o ABRT team abrt 2.1.11 06/18/2014 ABRT-RETRACE-CLIEN(1)
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