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Re: (ITS#6331) slapd freezing, not accepting further 'write' operations while 'read' operations are unaffected

> Version: 2.4.17

> Occasionally, I will find one of my servers (running Debian/Lenny with
> back-ported slapd version 2.4.17) in a state where the following occurs:
>   * Write operations will 'freeze' - leaving the requester at a frozen
> prompt or
> frozen LDAP-client of some kind (from wherever the write-operation
> originated).
>   * slapd refuses to 'stop', even though it indicates that its waiting for
> "0"
> processes to complete.
>   * Logs do not indicate a segfault nor any poorly terminated processes.
>   * Read operations on same server continue to function normally. Any data
> that
> existed before the "freeze" is returned as it should be.

You probably hit ITS#6276, which was fixed in 2.4.18.  Can you upgrade and