What is the changelog:ent and changelog:dn (dbmon.sh output) refers in 389 (ldap)

[Matveev Alexey]

Hello!

I have FreeIPA 4.5.2 and tune it performance for adding more than 100k users.

I have a question about script dbmon.sh (or for 389 DS db  in general)

The output of the dbmon.sh says:
....
dbcachefree 2374205440 free% 88.446 roevicts 0 hit% 99 pagein 36901 pageout 62843
....
dbname              count          free            free%    size

changelog:ent      505            7367            0.4  4138.2

changelog:dn     141699          55             0.0    74.0

userroot:ent     147205     1220895664    56.9  6294.5

userroot:dn      133806     500270863      97.7    87.7

    ipaca:ent         98            9719014          92.7  7823.9

    ipaca:dn          98           10476664        99.9    92.8

I'm new to 389 and need some explanation. I know that the dbcachefree is
nsslapd-dbcachesize, userroot:ent is nsslapd-cachememsize, userroot:dn is
nsslapd-dncachememsize.
What is changelog:ent and changelog:dn?
Thanks in advance!

Alex

[Mark Reynolds]

On 06/23/2017 12:21 PM, Matveev Alexey wrote:
>  Hello!
>
>  I have FreeIPA 4.5.2 and tune it performance for adding more than 100k
>  users.
>
>  I have a question about script dbmon.sh (or for 389 DS db  in general)
>
>  The output of the dbmon.sh says:
>  ....
>  dbcachefree 2374205440 free% 88.446 roevicts 0 hit% 99 pagein 36901
>  pageout 62843
>  ....
>  dbname              count          free            free%    size
>
>  changelog:ent      505            7367            0.4  4138.2
>
>  changelog:dn     141699          55             0.0    74.0
>
>  userroot:ent     147205     1220895664    56.9  6294.5
>
>  userroot:dn      133806     500270863      97.7    87.7
>
>      ipaca:ent         98            9719014          92.7  7823.9
>
>      ipaca:dn          98           10476664        99.9    92.8
>
>  I'm new to 389 and need some explanation. I know that the dbcachefree
>  is nsslapd-dbcachesize, userroot:ent is nsslapd-cachememsize,
>  userroot:dn is nsslapd-dncachememsize.
>  What is changelog:ent and changelog:dn
>  
"changelog" is your retro change log backend.  ":ent" refers to
the
entry cache, and ":dn" refers to the dn cache.
>  Thanks in advance!
>
>   
>
>  Alex
>
>   
>
>
>
>  _______________________________________________
>  389-users mailing list -- 389-users(a)lists.fedoraproject.org
>  To unsubscribe send an email to 389-users-leave(a)lists.fedoraproject.org

[Matveev Alexey]

Mark, thank you for reply.
Is low values of this attributes affect server performance? What ldap attributes is
corresponding to these db's?

From: Mark Reynolds [mailto:[e-mail]]
Sent: Friday, June 23, 2017 8:15 PM
To: General discussion list for the 389 Directory server project.
<389-users(a)lists.fedoraproject.org>; Matveev Alexey
<a.matveev(a)lan-project.ru&gt;
Subject: [389-users] Re: What is the changelog:ent and changelog:dn (dbmon.sh output)
refers in 389 (ldap)


On 06/23/2017 12:21 PM, Matveev Alexey wrote:

Hello!

I have FreeIPA 4.5.2 and tune it performance for adding more than 100k users.

I have a question about script dbmon.sh (or for 389 DS db  in general)

The output of the dbmon.sh says:
....
dbcachefree 2374205440 free% 88.446 roevicts 0 hit% 99 pagein 36901 pageout 62843
....
dbname              count          free            free%    size

changelog:ent      505            7367            0.4  4138.2

changelog:dn     141699          55             0.0    74.0

userroot:ent     147205     1220895664    56.9  6294.5

userroot:dn      133806     500270863      97.7    87.7

    ipaca:ent         98            9719014          92.7  7823.9

    ipaca:dn          98           10476664        99.9    92.8

I'm new to 389 and need some explanation. I know that the dbcachefree is
nsslapd-dbcachesize, userroot:ent is nsslapd-cachememsize, userroot:dn is
nsslapd-dncachememsize.
What is changelog:ent and changelog:dn
"changelog" is your retro change log backend.  ":ent" refers to the
entry cache, and ":dn" refers to the dn cache.

Thanks in advance!

Alex





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