Re: autosizing the cache

[Sergei Gerasenko <gerases@xxxxxxxxx>]

Hi William,

With autosizing on I configured the changelog backend:

dn: cn=changelog,cn=ldbm database,cn=plugins,cn=config

cn: changelog

objectClass: top

objectClass: extensibleObject

objectClass: nsBackendInstance

nsslapd-suffix: cn=changelog

nsslapd-cachesize: -1

nsslapd-cachememsize: 8858370048

nsslapd-readonly: off

nsslapd-require-index: off

nsslapd-directory: /var/lib/dirsrv/slapd-CNVR-NET/db/changelog

nsslapd-dncachememsize: 3000000000

Here’s the ldif:

dn: cn=changelog,cn=ldbm database,cn=plugins,cn=config

changetype: modify

replace: nsslapd-dncachememsize

nsslapd-dncachememsize: 3000000000

-

replace: nsslapd-cachememsize

nsslapd-cachememsize: 3000000000

The server refused to change nsslapd-cachememsize because of autosizing but nsslapd-dncachememsize did get changed. So it seems that I can still control nsslapd-dncachememsize? When I restart 389-ds, the 3G persists as well.

Does that make sense?

Thank you for a quick response!

Sergei

On Mar 13, 2018, at 7:40 PM, William Brown <william@xxxxxxxxxxxxxxxx> wrote:

If autosize > 0, we write a new entrychace/cachememsize every start up.

So you only need to set autosize to between 1 and 99 for it to work.

There is some other logic in there to account for other scenarioes =
for example, if you set autosize to 0 AND you set the entry cachesize
to 0, we'll autosize it at start up anyway. BUT if you have autosize =
0, and entry cachesize > 0, we won't touch it.

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