Forums >> IBM Power Systems >> PTF Watch

Jump to:




bvstone

V7R2 QtmmSendMail API Issue with Error Number (errno) 3452 (Too many files open for this process)

Posted:

V7R2 QtmmSendMail API Issue with Error Number (errno) 3452 (Too many files open for this process)

I recently was helping a customer with an issue they were having with one of our products to convert spooled files to PDF (AFPTOOL).

After a few calls, they would get error returned from the tool.  The actual error in the job log was:

Unable to open output PDF file. 0000003452                         
Error during TIFF to PDF conversion step.

Error Number (errno) 3452 means "Too many files open for this process."  That means that there is something that isn't closing file descriptors properly.

This customer also was doing some home grown IFS file work and we thought it was possible there was an issue there.  But in debugging we found the file descriptors returned from the open() API were not consistent.  After a call to the QtmmSendMail API then next open would result in a file descriptor of one higher than was expected.

So it went something like this:

fd = open(file); //fd = 3
sendEmail(); //This calls the QtmmSendMail API
rc = close(fd); //rc = 0
fd = open(myNextFile); //fd = 4... this should be 3!!!

After a few spooled file conversions and sending of emails, we would eventually hit the errno 3452.  Not caused by our software, but reported by our software.  It turns out the QtmmSendMail API was the culprit.

A quick search and this APAR was found:

http://www-01.ibm.com/support/docview.wss?uid=nas2a236805efbc82aaa86257eaf003c6f35

So again, if you're on V7R2 and have any applications that use the QtmmSendMail API, please make sure you have this PTF installed.

And also remember that if you're a MAILTOOL user and you are specifying SENDWITH(*MAILTOOL) you are using MAILTOOL Plus and this will not apply.  This is because MAILTOOL Plus will totally bypass the IBM SMTP/MSF system using our own SMTP process for delivery.

This will only apply to any of our MAILTOOL customers if you are specifying SENDWITH(*IBMSMTP) which passes the email off to the IBM SMTP/MSF system for delivery, as well as other users that have home grown or 3rd party applications using the QtmmSendMail API.

 




Latest Posts:

BVSTools ILE Functions Being Updated to Remove Hashtag (#) from Function Names BVSTools ILE Functions Being Updated to Remove Hashtag (#) from Function Names
Posted by December 30, 2021
BVSTools >> BVSTools Announcements
GETURI v12.00 Released Removing Beginning # (Hashtag) From Function Names GETURI v12.00 Released Removing Beginning # (Hashtag) From Function Names
Posted by December 28, 2021
BVSTools >> BVSTools Announcements >> Get URI (GETURI) Specific Announcements
Is any of BVSTools Software Affected by the log4j exploit? Is any of BVSTools Software Affected by the log4j exploit?
Posted by December 20, 2021
BVSTools >> BVSTools Software Discussion
GreenTools for Microsoft Apps (G4MS) Updated to Allow Downloads, Deletes, and Sharing of Files GreenTools for Microsoft Apps (G4MS) Updated to Allow Downloads, Deletes, and Sharing of Files
Posted by December 17, 2021
BVSTools >> BVSTools Announcements >> GreenTools for Microsoft Apps (G4MS) Specific Announcements
SSL Handshake Errors with GETURI, MAILTOOL and GreenTools Products SSL Handshake Errors with GETURI, MAILTOOL and GreenTools Products
Posted by October 18, 2021
BVSTools >> BVSTools Software Discussion
MAILTOOL Updated to Retry Sending when GSK SSL Handshake Error 415 (GSK_ERROR_BAD_PEER) is Encountered MAILTOOL Updated to Retry Sending when GSK SSL Handshake Error 415 (GSK_ERROR_BAD_PEER) is Encountered
Posted by August 19, 2021
BVSTools >> BVSTools Announcements >> eMail Tool (MAILTOOL) Specific Announcements
MAILTOOL Updated to Allow List-Unsubscribe and User Defined Headers MAILTOOL Updated to Allow List-Unsubscribe and User Defined Headers
Posted by August 13, 2021
BVSTools >> BVSTools Announcements >> eMail Tool (MAILTOOL) Specific Announcements
AWS signing process in as400 AWS signing process in as400
Posted by August 13, 2021
Programming >> Web Programming
2022 License Price Increase and Consulting Update for Non-Software Specific Assistance 2022 License Price Increase and Consulting Update for Non-Software Specific Assistance
Posted by August 9, 2021
BVSTools >> BVSTools Announcements
Journaling the IFS, SPLTOOL and Java Journaling the IFS, SPLTOOL and Java
Posted by August 4, 2021
BVSTools >> BVSTools Announcements >> Spooled File Tools (SPLTOOL) Specific Announcements
G4MSMAIL Now Allows Wildcard Attachments G4MSMAIL Now Allows Wildcard Attachments
Posted by June 10, 2021
BVSTools >> BVSTools Announcements >> GreenTools for Microsoft Apps (G4MS) Specific Announcements
G4G Update for Uploading Large Files G4G Update for Uploading Large Files
Posted by May 28, 2021
BVSTools >> BVSTools Announcements >> GreenTools for G Suite (Google Apps) (G4G) Specific Announcements
Can We Purchase License Keys for More Than One Year at a Time? Can We Purchase License Keys for More Than One Year at a Time?
Posted by May 21, 2021
BVSTools >> BVSTools Announcements
JOBWATCH 5.10 Released with New Feature to Monitor CPU Percentages JOBWATCH 5.10 Released with New Feature to Monitor CPU Percentages
Posted by May 10, 2021
BVSTools >> BVSTools Announcements >> Job Watch (JOBWATCH) Specific Announcements
Iseries Access data transfer Iseries Access data transfer
Posted by April 29, 2021
IBM Power Systems >> (QGPL) IBM i
samir.k.dawn2011@gmail.com

RE: V7R2 QtmmSendMail API Issue with Error Number (errno) 3452 (Too many files open for this process)

Posted:

RE: V7R2 QtmmSendMail API Issue with Error Number (errno) 3452 (Too many files open for this process)

Hi,

I am using API QtmmSendMail to send HTML Email but getting an error 3452 - “Too many open files for this process.” Looks like the API is causing the issue and not closing the descriptors properly. We are at V7R3. The link you have shared for the PTF is saying not found. Any suggestion how can I fix this error? many thanks in advance.


Last edited 08/30/2021 at 05:57:35



bvstone

RE: RE: V7R2 QtmmSendMail API Issue with Error Number (errno) 3452 (Too many files open for this process)

Posted:

RE: RE: V7R2 QtmmSendMail API Issue with Error Number (errno) 3452 (Too many files open for this process)

I personally would review your code making sure any socket or file descriptor you open is closed.  If you're 100% sure that you're not leaving any open then I would search for PTFs for your OS version, or give IBM a call to see if they have a solution.


Last edited 08/30/2021 at 07:32:16




Reply




Copyright 1983-2020 BVSTools
GreenBoard(v3) Powered by the eRPG SDK, MAILTOOL Plus!, GreenTools for Google Apps, jQuery, jQuery UI, BlockUI, CKEditor and running on the IBM i (AKA AS/400, iSeries, System i).