Monitoring recovering

[Emmanuel BILLOT]

Hi,

When DS is crashed, sometimes logs sayes "Recovering Database" and i 
have to wait for minutes before it re run.
Is it possible to watch what DS is doing (recovering progression ?)

BR?

-- 
==========================================
Emmanuel BILLOT
IRD - Orléans
Délégation aux Systèmes d'Information (DSI)
tél : [phone]
==========================================

[Rich Megginson]

Emmanuel BILLOT wrote:
>  Hi,
>
>  When DS is crashed, sometimes logs sayes "Recovering Database" and i 
>  have to wait for minutes before it re run.
>  Is it possible to watch what DS is doing (recovering progression ?) 
No, not really.
 I suppose you could strace the process.  I think all of 
the work is being done inside of berkeley db, I'm not sure how to get 
that information.
>  BR?
>

[David Boreham]

Rich Megginson wrote:
>  Emmanuel BILLOT wrote:
> > Hi,
> >
> > When DS is crashed, sometimes logs sayes "Recovering Database" and i 
> > have to wait for minutes before it re run.
> > Is it possible to watch what DS is doing (recovering progression ?)
>  No, not really.  I suppose you could strace the process.  I think all 
>  of the work is being done inside of berkeley db, I'm not sure how to 
>  get that information. 
There's a way to enable recovery logging in BDB, and have
the output go 
to the DS logs.
Unfortunately I don't remember how to do it, but it probably isn't hard 
to figure out from the code.
Having done that, the progress can be seen by tailing the log.

There's a more advanced progress monitoring mechanism in BDB now, but 
the DS doesn't use it.

[Noriko Hosoi]

David Boreham wrote:
>  Rich Megginson wrote:
> > Emmanuel BILLOT wrote:
> >> Hi,
> >>
> >> When DS is crashed, sometimes logs sayes "Recovering Database" and i 
> >> have to wait for minutes before it re run.
> >> Is it possible to watch what DS is doing (recovering progression ?)
> > No, not really.  I suppose you could strace the process.  I think all 
> > of the work is being done inside of berkeley db, I'm not sure how to 
> > get that information.
>  There's a way to enable recovery logging in BDB, and have the output 
>  go to the DS logs.
>  Unfortunately I don't remember how to do it, but it probably isn't 
>  hard to figure out from the code.
>  Having done that, the progress can be seen by tailing the log. 
Could it be
"nsslapd-db-verbose"?

It can be turned on by setting the directive in the backend config in 
dse.ldif.

dn: cn=config,cn=ldbm database,cn=plugins,cn=config
[...]
nsslapd-db-verbose: on
[...]
>  There's a more advanced progress monitoring mechanism in BDB now,
> but 
>  the DS doesn't use it.
>
>
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