Question

CFQUERY Timeout

Asked by: usachrisk1983

In an Internal application I've written I have an audit.cfc that is responsible for writing actions taken into an audit table.  Very frequently (many times a day) multiple pages that call this CFC timeout with the following error: "The request has exceeded the allowable time limit Tag: CFQUERY".  I've bumped up the requesttimeout to up to two minutes on some of these pages with no change.  While it's various pages that call this CFC, they all fail running this query:

  <cfquery name="qryInsertAuditStatement" datasource="#request.dsn#">
    insert into application_auditing (
         audit_uid
       , audit_module
       , audit_utc_time
       , audit_action
       , audit_param1
       , audit_param2
       , audit_param3
       , audit_param4
       , audit_param5
      ) values (
         <cfqueryparam cfsqltype="cf_sql_integer" value="#session.app_uid#">
       , <cfqueryparam cfsqltype="cf_sql_varchar" value="#arguments.module#">
       , #CreateODBCDateTime(request.utc)#
       , <cfqueryparam cfsqltype="cf_sql_varchar" value="#arguments.action#">
       , <cfqueryparam cfsqltype="cf_sql_varchar" value="#arguments.param1#">
       , <cfqueryparam cfsqltype="cf_sql_varchar" value="#arguments.param2#">
       , <cfqueryparam cfsqltype="cf_sql_varchar" value="#arguments.param3#">
       , <cfqueryparam cfsqltype="cf_sql_varchar" value="#arguments.param4#">
       , <cfqueryparam cfsqltype="cf_sql_varchar" value="#arguments.param5#">
    )       
  </cfquery>

No other query has every timed out in production except for this one.  Any thoughts?

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Asked On
2007-06-29 at 06:09:25ID22666579
Topic

ColdFusion Application Server

Participating Experts
3
Points
500
Comments
8

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Answers

 

by: Jester_48Posted on 2007-06-29 at 06:16:09ID: 19389209

have you tried adding the time out request to the actual query?

<cfquery name="qryInsertAuditStatement" datasource="#request.dsn#" timeout="500">

se if that change makes a difference

 

by: gdemariaPosted on 2007-06-29 at 09:44:57ID: 19391514

Its odd that an insert statement would timeout.  Are there any triggers associated with the database table?   How is the size of the table?  Are any restraints defined to restrict its size or growth?

What database is this?   MySQL or SQL Server perhaps?

If you take the insert statement from the debug page (where its showing the actual values of the statement not the variables) and try running the insert directly into the database do you get the same issue?   Via SQL manager or SQL*Plus or something.

If you have the same issue direct to the database, you may want to post the SQL syntax to that database's EE area.

 

by: SBennettPosted on 2007-06-29 at 14:38:13ID: 19393784

I assume from your question you already have placed the <cfsetting requesttimeout="600"> tag on your page. The thing with Coldfusion request timeout errors is that they almost always end with a misleading CFQUERY reference. It usually ends up being something other than the actual query on your page that is causing the timeout.  If you have not already done so I would try a proccess of eliminiation by commenting out sections of your code untill you can be sure you know what is causing it. Once you are certain it is the cfquery that is the culprit, one thing you may check though is if there is some other process (perhaps a database job) that my also be inserting/updating data to that table and causing the database to lock that table for extended periods of time.

 

by: usachrisk1983Posted on 2007-07-02 at 06:09:45ID: 19403052

Jester, made change - will watch it over a few days to see how this goes.

gdemaria, agreed - and only sometimes.  This is an Oracle 9i database.  The size also worried me, so a few weeks ago I created a new archive table and move everything older than 1 year to that table.  The table size is down to 6mb (6291456 bytes), there is no restriction on the size of the table or database.  I've used TOAD to run the same query and it inserts no problem - and most of the time it does work though CFML.

SBennett, yes, I have inserted the CFSETTING tag at the top of my page, which was my first real troubleshooting step.    There isn't really any other code on my page that I can comment out - I have the arguments, the query, and then the CFRETURN tag.  Any hints on how I should go about monitoring the CF/DB jobs to find out if there is anything else conflicting?

 

by: SBennettPosted on 2007-07-02 at 10:31:02ID: 19405352

Open Oracle Enterprise Manager drill down to your database and click on "Instance" then you should see on the right a item in the list that says:

"Monitor locks, sessions consuming the highest amounts of resources, and database health (if the Diagnostics Pack is installed)."

Open up the "Locks" link and the "Sessions" link and watch them side by side, they should help you figure out where any traffic that is causing locks is comming from.

 

by: usachrisk1983Posted on 2007-07-06 at 08:11:42ID: 19432359

Jester - this seems to reduce the total count of failures (down to 2-3 per day) - but I had to bring it up to 5 minutes for it to work, so I think this may be a bandaid since this query should not take 5 minutes to run.  It's at least a short term solution.

SB - I couldn't use your solution (yet) because you need rights that I do not have in this environment.  I've emailed the DBAs for assistance in getting what I need to be able to see this information.

 

by: SBennettPosted on 2007-07-06 at 09:03:08ID: 19432787

Another thing that may help is analyzing this problem is if you had either FusionReactor (http://www.fusion-reactor.com) or SeeFusion (http://www.seefusion.com/) installed on your cfserver. These programs will give you the ability to see which other coldfusion processes are running at the same time that may be conflicting with this one.

 

by: usachrisk1983Posted on 2007-07-10 at 04:02:36ID: 19452244

Thanks SB - I'll look into those products.  In the mean time, I'm going to chat with a DBA today about what my options are for monitoring the database and why my insert query could be failing.

20120131-EE-VQP-002

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