Admin Console Performance Issues when using Delegated Admin

Admin Console Performance Issues when using Delegated Admin

   KB 21916        Last updated on 06/20/2016  




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Note: This information is related to Bug 97743.

Overview

If you are experiencing significant admin console performance issues when using delegated admin, upgrade to version 8.6 Patch 2 or version 8.7 If you still encounter performance issues, adjust these configuration settings:

Zimbra 8.7 and later

Adjust these settings in LDAP

  • zimbraShortTermAllEffectiveRightsCacheExpiration (default: 50s)
  • zimbraShortTermAllEffectiveRightsCacheSize (default: 128)
  • zimbraShortTermGranteeCacheExpiration (default: 50s)
  • zimbraShortTermGranteeCacheSize (default: 128)

Zimbra 8.6 patch 2 and later patch levels

Configure these LC keys:

  • short_term_all_effective_rights_cache_expiration (default: 50000)
  • short_term_all_effective_rights_cache_size (default: 128)
  • short_term_grantee_cache_expiration (default: 50000)
  • short_term_grantee_cache_size (default: 128)

Note: The default sizes are 128, with default expirations in milliseconds. Using higher values is not recommended.

LDAP key descriptions

zimbraShortTermAllEffectiveRightsCacheSize

Maximum number of entries in the short term All Effective Rights cache.

This cache can improve performance by avoiding recomputing All Effective Rights of named entries like accounts frequently in a short period of time.

Can disable the cache be specifying a value of 0

The default value is 128

zimbraShortTermAllEffectiveRightsCacheExpiration

Maximum time an entry in the short term All Effective Rights cache will be regarded as valid.

If value is 0, the cache is disabled.

The cache is particularly useful when significant use is made of delegated administration.

All Effective Rights are computations of the rights that named entries like accounts have - although when used, they are checked separately.

The longer the value of this setting is, the more stale the view of the details is likely to be. For this reason, the maximum accepted value is 30m. Larger values will be treated as being 30m

The default value is 50s

zimbraShortTermGranteeCacheSize

Maximum number of entries in the short term Grantee cache.

This cache can improve performance by avoiding recomputing details frequently in a short period of time, for instance for each entry in search results.

Can disable the cache be specifying a value of 0

The default value is 128

zimbraShortTermGranteeCacheExpiration

Maximum time an entry in the Grantee cache will be regarded as valid.

If value is 0, the cache is disabled.

The cache is particularly useful when significant use is made of delegated administration.

Grantees objects provide a view of what rights a grantee has - although those are checked separately.

The longer the value of this setting is, the more stale the view of the details is likely to be. For this reason, the maximum accepted value is 30m. Larger values will be treated as being 30m

The default value is 50s

Verified Against: Zimbra Collaboration 9.0, 8.7 Date Created: 05/05/2015
Article ID: https://wiki.zimbra.com/index.php?title=Admin_Console_Performance_Issues_when_using_Delegated_Admin Date Modified: 06/20/2016



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