Alert.png The wiki is deprecated and due to be decommissioned by the end of September 2022.
The content is being migrated to other supports, new updates will be ignored and lost.
If needed you can get in touch with EGI SDIS team using operations @

Middleware issues and solutions

From EGIWiki
Revision as of 13:41, 15 November 2011 by Ljocha (talk | contribs)
Jump to navigation Jump to search
Main operations services Support Documentation Tools Activities Performance Technology Catch-all Services Resource Allocation Security

Documentation menu: Home Manuals Procedures Training Other Contact For: VO managers Administrators

Purpose of this page is to document recurring middleware issues with broad impact and the respective solutions and/or workarounds.

This page is maintained by the Distributed Middleware Support Unit of EGI.

Distribution Affected Product Date Title
EMI VOMS July 17, 2011 VOMS server fails with high number of VOs




VOMS server fails with high number of VOs

VOMS server of gLite 3.2 is more memory greedy, it starts failing when configured to serve more than 10 (approx.) VOs.

Change -XX:MaxPermSize parameter of CATALINA_OPTS to the value of at least 512m in /etc/tomcat5/tomcat5.conf

 CATALINA_OPTS="-Xmx1508M -server -XX:MaxPermSize=512m"

and add

 * soft nofile 2048
 * hard nofile 2048

into /etc/security/limits.conf.

GGUS ticket #72136


Storage Element

BDII does not start at SE node

BDII daemon does not start correctly at SE node, yielding the service not to be published to GOC, etc. Symptoms are error messages:

  # service ldap restart
  Stopping slapd: [ OK ]
  Checking configuration files for slapd: bdb_db_open: Warning - No
  DB_CONFIG file found in directory /var/lib/ldap: (2)
  Expect poor performance for suffix dc=my-domain,dc=com.
  config file testing succeeded
  [ OK ]
  Starting slapd: [ OK ]

The problem is caused by settting the BDII_USER variable in site-info.def, which causes incorrect permission settings on some files slapd uses. This variable should not be set at SE nodes, it's intended for BDII node only.