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Re: slapd not responding: FUTEX_WAIT

To: Saket Sathe <saket@cc.iitb.ac.in>
Subject: Re: slapd not responding: FUTEX_WAIT
From: "Kurt D. Zeilenga" <Kurt@OpenLDAP.org>
Date: Mon, 22 Aug 2005 11:20:20 -0700
Cc: openldap-software@OpenLDAP.org
In-reply-to: <4309B1E8.2010305@cc.iitb.ac.in>
References: <4309B1E8.2010305@cc.iitb.ac.in>

At 04:07 AM 8/22/2005, Saket Sathe wrote:
>Hi All,
>I am using OL 2.2.26 with BDB 4.5.2 + 4 patches.
>
>Today morning I found out that on some of the slaves slapd is not responding.
>Here is an strace of the irresponsive process:
>
># strace -p 2906
>Process 2906 attached - interrupt to quit
>futex(0xbd7c2bf8, FUTEX_WAIT, 2910, NULL
>
>Please let me know any other relevant information I can provide pertaining to this error.

It is not an error for slapd(8) threads to be in a FUTEX_WAIT,
even for long periods of time.

Kurt

References:
- slapd not responding: FUTEX_WAIT
  - From: Saket Sathe <saket@cc.iitb.ac.in>

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