Some Management Module jar file permissions keep changing (775 to 640)

Products

• CA Application Performance Management Agent (APM / Wily / Introscope)
• CA Application Performance Management (APM / Wily / Introscope)
• INTROSCOPE
• DX Application Performance Management

Issue/Introduction

Permissions on some Management Module jar files in /opt/CAAPM/Introscope10.7.0.45/config/modules keep changing from 775 to 640.  Why is this happening?  What is the impact?  How can it be fixed?

[[email protected] modules]# ls -ltr
total 628
-rwxr-xr-x 1 apmadmin apmadmin   1862 Feb 15  2018 SystemMM.jar
-rwxr-xr-x 1 apmadmin apmadmin  89285 Feb 15  2018 DefaultMM.jar
-rwxr-xr-x 1 apmadmin apmadmin   7667 Feb 15  2018 APMInfrastructureMM.jar
-rwxrwxr-x 1 apmadmin apmadmin  21613 Feb 15  2018 SharePoint_ManagementModule.jar
-rwxrwxr-x 1 apmadmin apmadmin  40271 Feb 15  2018 OSB_ManagementModule_typical.jar
-rwxrwxr-x 1 apmadmin apmadmin  29541 Feb 15  2018 WMBManagementModule.jar
-rwxrwxr-x 1 apmadmin apmadmin   7131 Feb 15  2018 WebsphereMQ_CPT_Health_And_Availability.jar
-rwxrwxr-x 1 apmadmin apmadmin  38725 Feb 15  2018 WebSphereMQ_Client_And_Server.jar
-rwxrwxr-x 1 apmadmin apmadmin  43125 Feb 15  2018 PPOracleDB_ManagementModule.jar
-rwxrwxr-x 1 apmadmin apmadmin  33736 Feb 15  2018 PPWebServers_ManagementModule.jar
-rwxrwxr-x 1 apmadmin apmadmin  49548 Feb 15  2018 WebMethodsISManagementModule.jar
-rwxrwxr-x 1 apmadmin apmadmin  24096 Feb 15  2018 WebMethodsBrokerManagementModule.jar
-rwxrwxr-x 1 apmadmin apmadmin  73007 Feb 15  2018 APMCloudMonitorManagementModule.jar
-rwxrwxr-x 1 apmadmin apmadmin   6083 Feb 15  2018 ADA-APM_ManagementModule.jar
-rwxrwxr-x 1 apmadmin apmadmin   1846 Apr  6 14:42 TMS.jar
-rwxrwxr-x 1 apmadmin apmadmin   5464 Apr  6 14:53 RS.jar
-rw-r----- 1 apmadmin apmadmin   3692 Apr  7 11:32 OPSGW.jar
-rw-r----- 1 apmadmin apmadmin  11204 Apr 13 22:03 SECWork.jar
-rw-r----- 1 apmadmin apmadmin 105190 Apr 13 22:36 AdminDefinitionsManagementModule.jar
-rw-r----- 1 apmadmin apmadmin  13088 Apr 13 22:37 FilerWeb.jar

Environment

Release : 10.7.0

 

Resolution

The permissions change is per product design. In speaking with Engineering, when modifying a Management Module (that is when you create/modify/remove an element), we delete the existing MM jar file, then create a new MM jar file and save it with the minimum default permissions for the user that starts the Enterprise Manager. For example, if I create a user ABC and it owns the EM executable, when they start the EM and the MM is modified, then the new MM jar file will have the user's default minimum permissions.

So that is why you see  a change from 775 to 640.