UVMS: unidpl PKG does not close sockets properly

Products

• CA Automic Dollar Universe

Issue/Introduction

The UVMS process does not close the Sockets that were used during the deployment of a package via the command "unidpl PKG" against the port of the uxioserv - area EXP of the reference node.

This generates a "File-Descriptor" leak for every deployment and can eventually freeze UVMS as soon as the process reaches the UXMAXFD limit (8000 by default).

Launching lsof -p UVMS_PID returns a lot of CLOSE_WAIT sockets hours after the deployment.

Environment

UVMS 6 where the command "unidpl PKG" is launched 

Cause

UVMS Sockets were not properly closed against the IO X port of the Dollar Universe node.

Resolution

Update to a fix version listed below or a newer version if available.

Fix version(s): 
Component: Univiewer.Management.Server
Dollar Universe 6.10.01 - Released 30th May 2019

Additional Information

In order to investigate a Socket Leak the following section needs to be added into the file 'log4j.xml' on folder data of the UVMS: 

 <category name="com.orsyp.std.ConnectionTraceLogger" additivity="false"> 
   <level value="TRACE"/> 
   <appender-ref ref="UNI_SIZE_LIMITER"/>
 </category>

A restart of the UVMS is necessary to see the following kind of traces in uvserver.log:

2019-04-29 20:28:07	TRACE	request-worker-10	com.orsyp.std.ConnectionTraceLogger	TAKE Taken: 528037, Recycled: 528035, Balance: 2
2019-04-29 20:28:07	TRACE	request-worker-10	com.orsyp.std.ConnectionTraceLogger	RECY Taken: 528037, Recycled: 528036, Balance: 1