There is no functionality in Mach-II directly that would cause behavior
like this. However, I do have a few questions:
1. What version of Mach-II are you using? Please report the full
version number (something like 1.6.1.8 or 1.8.0.8 -- you can see it in
the README file header or in the M2 Dashboard).
2. What vendor and version of you CFML engine are you using? (I'm
guessing ti might be cf9...????)
3. Have you checked for var scope issues in your code?
4. Are you using cfthread anywhere?
5. <cfhttp> needs to have an "name" attribute which needs to be var'ed.
It could be possible that there is a threading issue with the
vendor/version of your CFML engine.
6. I think you need to share more code. I'd also log the user agent in
the log message you are doing as well.
Bryan S said the following on 30/03/10 12:00:
I would really appreciate any help anyone can provide on this.
At CFTalk I’ve received extensive help on how to debug this problem
but no solution to the problem itself. I’m thinking it may be a
Mach-II specific problem. Based on the extensive logging I’ve added to
my application, and repeated testing, I am able to simplify it down to
the following:
I have a scheduled task that runs an event I’ll call
checkIfReportShouldRun that runs every minute.
At minute:
1) It determines that it should start a report and constructs a url
that calls the event runNextReportInQueue, logs the url that it
constructed, and fires that url
2) It determines that it should NOT fire an event and logs the fact
that it will not construct a url to run another report
3) Same as minute 2
4) Same as minute 2
5) Same as minute 2
HOWEVER, at minute 5 in spite of the fact that checkIfReportShouldRun
correctly determines that it should not start a report, a report does
start.
This rogue report is started by the EXACT SAME url that fired at
minute one. I know this because when I have added a now() timestamp
parameter to the url to indicate when it is constructed in
runNextReportInQueue and just before checkIfReportShouldRun runs the
url. I have included this code at the bottom of this message.
This rogue report always fires exactly five minutes after the first
report fired. The second identical url DOES NOT fire IF the report
that started at minute 1 has completed, only if it is still running.
Although my application logging does not indicate that the duplicate
url is being fired the server logs do. This does not occur if I run
checkIfReportShouldRun manually in a browser. It does happen if
checkIfReportShouldRun is fired by a Cold Fusion Scheduled Task or by
a Linux Cron Job.
I have exhaustively ruled out the possibility that some other server
is firing either url. Logging shows conclusively that the line of code
just below <!---RUN THE URL---> in the code snippet at the bottom of
this message is causing both reports to start. How can this happen?
<cfset local.cfhttpStartTime = now() />
<cfset local.desiredEvent = local.desiredEvent & "&cfhttpStartTime=" &
local.cfhttpStartTime />
<cfset local.logEntry =
"local.configNumber=#local.configNumber#-CFHTTP START
-local.cfhttpStartTime=#local.cfhttpStartTime#-local.configName=#local.configName#-local.desiredEvent=#local.desiredEvent#CFHTTP
START"/>
<cfset
logEntry("flexcomm-schedule-results","aa050-cfhttpLogging",local.logEntry)
/>
<!---RUN THE URL--->
<cfhttp method="get" url="#local.desiredEvent#">
<cfset local.cfhttpCompleteTime = now() />
<cfset local.desiredEvent = local.desiredEvent &
"&cfhttpCompleteTime=" & local.cfhttpCompleteTime />
<cfset local.logEntry =
"local.configNumber=#local.configNumber#-CFHTTP
COMPLETE-local.cfhttpStartTime=#local.cfhttpStartTime#-local.cfhttpCompleteTime=#local.cfhttpCompleteTime#-local.configName=#local.configName#-local.desiredEvent=#local.desiredEvent#CFHTTP
COMPLETE"/>
<cfset
logEntry("flexcomm-schedule-results","aa050-cfhttpLogging",local.logEntry)
/>
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