libdb: unable to allocate memory for mutex; resize mutex region

[Joshua Brodie]

Hello:

We are running an older 389-Directory Server (v 1.2.11.29) --- being
upgraded soon but still stuck with it.

Starting a week ago, we have started receiving error messages like below
--- restarting resolves till the next time error reoccurs (and service
subsequently not responsive till restart).

Any ideas on how to find the root cause to what triggers it?


>  [07/Sep/2017:06:18:03 -0700] - libdb: unable to allocate memory for
mutex; resize mutex region
>  [07/Sep/2017:06:18:03 -0700] - libdb: unable to allocate memory for
mutex; resize mutex region
>  [07/Sep/2017:06:18:03 -0700] - libdb: unable to allocate memory for
mutex; resize mutex region
>  [07/Sep/2017:06:18:03 -0700] - libdb: unable to allocate memory for
mutex; resize mutex region
>  [07/Sep/2017:06:18:04 -0700] - libdb: unable to allocate memory for
mutex; resize mutex region
>  [07/Sep/2017:06:18:04 -0700] - libdb: unable to allocate memory for
mutex; resize mutex region
>  [07/Sep/2017:06:18:04 -0700] - libdb: unable to allocate memory for
mutex; resize mutex region
>  [07/Sep/2017:06:18:04 -0700] - libdb: unable to allocate memory for
mutex; resize mutex region
>  [07/Sep/2017:06:18:05 -0700] - libdb: unable to allocate memory for
mutex; resize mutex region
>  [07/Sep/2017:06:18:05 -0700] - libdb: unable to allocate memory for
mutex; resize mutex region
>  [07/Sep/2017:06:18:05 -0700] - libdb: unable to allocate memory for
mutex; resize mutex region
>  [07/Sep/2017:06:18:05 -0700] - libdb: unable to allocate memory for
mutex; resize mutex region
>  [07/Sep/2017:06:18:05 -0700] - libdb: unable to allocate memory for
mutex; resize mutex region
>  [07/Sep/2017:06:18:05 -0700] - libdb: unable to allocate memory for
mutex; resize mutex region
>  [07/Sep/2017:06:18:06 -0700] - libdb: unable to allocate memory for
mutex; resize mutex region
>  [07/Sep/2017:06:18:06 -0700] - libdb: unable to allocate memory for
mutex; resize mutex region
>  [07/Sep/2017:06:18:06 -0700] - libdb: unable to allocate memory for
mutex; resize mutex region

[William Brown]

On Thu, 2017-09-07 at 10:49 -0700, Joshua Brodie wrote:
>  Hello:
>  
>  We are running an older 389-Directory Server (v 1.2.11.29) --- being
>  upgraded soon but still stuck with it.
>  
>  Starting a week ago, we have started receiving error messages like below
>  --- restarting resolves till the next time error reoccurs (and service
>  subsequently not responsive till restart).
>  
>  Any ideas on how to find the root cause to what triggers it? 
Have you got enough space for the dbcache size. IIRC that defines memory
limits for BDB and if that's too small it could affect this. 

>  
>  
>  > [07/Sep/2017:06:18:03 -0700] - libdb: unable to allocate memory for
>  mutex; resize mutex region
>      > [07/Sep/2017:06:18:03 -0700] - libdb: unable to allocate memory for
>  mutex; resize mutex region
>      > [07/Sep/2017:06:18:03 -0700] - libdb: unable to allocate memory for
>  mutex; resize mutex region
>      > [07/Sep/2017:06:18:03 -0700] - libdb: unable to allocate memory for
>  mutex; resize mutex region
>      > [07/Sep/2017:06:18:04 -0700] - libdb: unable to allocate memory for
>  mutex; resize mutex region
>      > [07/Sep/2017:06:18:04 -0700] - libdb: unable to allocate memory for
>  mutex; resize mutex region
>      > [07/Sep/2017:06:18:04 -0700] - libdb: unable to allocate memory for
>  mutex; resize mutex region
>      > [07/Sep/2017:06:18:04 -0700] - libdb: unable to allocate memory for
>  mutex; resize mutex region
>      > [07/Sep/2017:06:18:05 -0700] - libdb: unable to allocate memory for
>  mutex; resize mutex region
>      > [07/Sep/2017:06:18:05 -0700] - libdb: unable to allocate memory for
>  mutex; resize mutex region
>      > [07/Sep/2017:06:18:05 -0700] - libdb: unable to allocate memory for
>  mutex; resize mutex region
>      > [07/Sep/2017:06:18:05 -0700] - libdb: unable to allocate memory for
>  mutex; resize mutex region
>      > [07/Sep/2017:06:18:05 -0700] - libdb: unable to allocate memory for
>  mutex; resize mutex region
>      > [07/Sep/2017:06:18:05 -0700] - libdb: unable to allocate memory for
>  mutex; resize mutex region
>      > [07/Sep/2017:06:18:06 -0700] - libdb: unable to allocate memory for
>  mutex; resize mutex region
>      > [07/Sep/2017:06:18:06 -0700] - libdb: unable to allocate memory for
>  mutex; resize mutex region
>      > [07/Sep/2017:06:18:06 -0700] - libdb: unable to allocate memory for
>  mutex; resize mutex region
>  _______________________________________________
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-- 
Sincerely,

William Brown
Software Engineer
Red Hat, Australia/Brisbane