Too many open files on EAP 7.2 from growing amounts of ejb-xa-recovery files

Environment

• Red Hat JBoss Enterprise Application Platform (EAP)
  • 7.2.4

Issue

JBoss server logs an error:

2019-10-31 12:09:34 ERROR [stderr] (default task-366) javax.ejb.EJBException: WFTXN0091: Failed to create xa resource recovery file: ./data/ejb-xa-recovery/20005_00000000000000000000ffff0a3d6fe5b86267965dbab2f700083d9733_00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

the above error is caused by:

2019-10-31 12:09:34 ERROR [stderr] (default task-366) Caused by: java.nio.file.FileSystemException: ./data/ejb-xa-recovery/20005_00000000000000000000ffff0a3d6fe5b86267965dbab2f700083d9733_00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000: Too many open files

Resolution

• Update to 7.2.6+

Root Cause

This is a bug Content from issues.jboss.org is not included.JBEAP-17933 in EAP server.

Diagnostic Steps

The directory ${jboss.server.data.dir}/ejb-xa-recovery will contain 100s of files that never get deleted.

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