Re: (ITS#6243) back-monitor fails to report entry cache usage

[quanah@zimbra.com]

--On August 5, 2009 5:35:57 PM +0000 quanah@zimbra.com wrote:

> Full_Name: Quanah Gibson-Mount
> Version: 2.4.17
> OS: Linux 2.6
> URL: ftp://ftp.openldap.org/incoming/
> Submission from: (NULL) (69.235.224.133)
>
>
> Querying back monitor to examine the values of the various caches reports
> the entry cache as empty:
>
># Frontend, Databases, Monitor
> dn: cn=Frontend,cn=Databases,cn=Monitor
> structuralObjectClass: monitoredObject
> creatorsName: cn=config
> modifiersName: cn=config
> createTimestamp: 20090805044038Z
> modifyTimestamp: 20090805044038Z
> monitoredInfo: frontend
> monitorIsShadow: FALSE
> namingContexts:
> readOnly: FALSE
> olmBDBEntryCache: 0
> olmBDBDNCache: 592
> olmBDBIDLCache: 502
> olmDbDirectory: /opt/zimbra/data/ldap/hdb/db/
> entryDN: cn=Frontend,cn=Databases,cn=Monitor
> subschemaSubentry: cn=Subschema
> hasSubordinates: FALSE


This may be specific to glued databases (databases rooted at "").  I see 
that it's reporting the caches as under the Frontend database, instead of 
the actual BDB database, which is database 3, and shows no cache 
information:

# Database 3, Databases, Monitor
dn: cn=Database 3,cn=Databases,cn=Monitor
structuralObjectClass: monitoredObject
creatorsName: cn=config
modifiersName: cn=config
createTimestamp: 20090805044038Z
modifyTimestamp: 20090805044038Z
monitoredInfo: hdb
monitorIsShadow: FALSE
namingContexts:
readOnly: FALSE
monitorOverlay: accesslog
monitorOverlay: syncprov
entryDN: cn=Database 3,cn=Databases,cn=Monitor
subschemaSubentry: cn=Subschema
hasSubordinates: TRUE

I see the same behavior on the replica, where it is Database 2 instead of 
database 3, as it has no accesslog DB.  On the master, the accesslog DB 
caches are correct:

# Database 2, Databases, Monitor
dn: cn=Database 2,cn=Databases,cn=Monitor
structuralObjectClass: monitoredObject
creatorsName: cn=config
modifiersName: cn=config
createTimestamp: 20090805044038Z
modifyTimestamp: 20090805044038Z
monitoredInfo: hdb
monitorIsShadow: FALSE
namingContexts: cn=accesslog
readOnly: FALSE
monitorOverlay: syncprov
olmBDBEntryCache: 297
olmBDBDNCache: 517
olmBDBIDLCache: 9
olmDbDirectory: /opt/zimbra/data/ldap/accesslog/db/
entryDN: cn=Database 2,cn=Databases,cn=Monitor
subschemaSubentry: cn=Subschema
hasSubordinates: TRUE

--Quanah


--

Quanah Gibson-Mount
Principal Software Engineer
Zimbra, Inc
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