Why do I get "ESP2720E UNABLE TO ALLOCATE" errors during dynamic allocations?

Products

• ESP Workload Automation

Issue/Introduction

The usual culprit is when REXXON is coded incorrectly, in an application, where an ALLOCX statement has been issued (usually in a loop after the JOBONCSF statement) with no corresponding FREEX command issued. If there are thousands of jobs in the CSF queue, the dataset will be allocated that many times - filling up the table.

Solution: Add the needed FREEX code in the APPL and recycle ESP to free the allocated datasets.

Sample messages:

ESP528E ERROR OCCURRED PROCESSING EVENT <event name> ESP2720E UNABLE TO ALLOCATE <jcl name>, S99 ERROR CODE X'0238', INFO CODE X'0000' ESP1800I ABOVE ERROR OCCURRED ON FOLLOWING STATEMENT ESP1007I JCLLIB '<jcl name>'

This Frequently Asked Question applies to all supported releases of ESP Workload Manager beginning with 5.3.

Environment

Release: WKLASG00200-5.5-Workload Automation-Service Governor-EE
Component: