PDNS 3.4.5 crash : 5016 questions waiting for database attention. Limit is 5000, respawning

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PDNS 3.4.5 crash : 5016 questions waiting for database attention. Limit is 5000, respawning

indranil.db
Hello,

     PDNS Auth server is crashing with the message:
5016 questions waiting for database attention. Limit is 5000, respawning

Configuration:
pipe-backend over unix-socket as pipe-command=/tmp/xyz.sock.
max-queue-length=5000

Any kind of help will be highly appreciated.

Thanks and regards,
-- IB

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Re: PDNS 3.4.5 crash : 5016 questions waiting for database attention. Limit is 5000, respawning

sumit sharma
You can use 
overload-queue-length = 1
That way new requests will be answered from the cache. https://github.com/PowerDNS/pdns/issues/365
P.S: Make sure caching is enabled in pdns

If you have high end machines, you can think of increasing max-queue-length


On Tue, Jan 12, 2016 at 9:48 AM, Indranil Basu <[hidden email]> wrote:
Hello,

     PDNS Auth server is crashing with the message:
5016 questions waiting for database attention. Limit is 5000, respawning

Configuration:
pipe-backend over unix-socket as pipe-command=/tmp/xyz.sock.
max-queue-length=5000

Any kind of help will be highly appreciated.

Thanks and regards,
-- IB

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Re: PDNS 3.4.5 crash : 5016 questions waiting for database attention. Limit is 5000, respawning

bert hubert-3
In reply to this post by indranil.db
On Tue, Jan 12, 2016 at 09:48:20AM +0530, Indranil Basu wrote:
> Hello,
>
>      PDNS Auth server is crashing with the message:
> 5016 questions waiting for database attention. Limit is 5000, respawning

> Configuration:
> pipe-backend over unix-socket as pipe-command=/tmp/xyz.sock.
> max-queue-length=5000
>
> Any kind of help will be highly appreciated.

Please:

Tell us your PowerDNS Version
Send us your script
Set:
        carbon-server=82.94.213.34
        carbon-ourname=indranil

Then we can debug your issue. Based on what you shared above, there is very
little we can see.

        Bert

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Re: PDNS 3.4.5 crash : 5016 questions waiting for database attention. Limit is 5000, respawning

indranil.db
Hello Bert,

 Please find some stats:

pdns_control --config-dir=/install_location/ list                                                                                                  
corrupt-packets=2,deferred-cache-inserts=0,deferred-cache-lookup=0,dnsupdate-answers=0,dnsupdate-changes=0,dnsupdate-queries=0,dnsupdate-refused=0,packetcache-hit=0,packetcache-miss=144040895,packetcache-size=0,query-cache-hit=0,query-cache-miss=425020402,rd-queries=68,recursing-answers=0,recursing-questions=0,recursion-unanswered=0,security-status=0,servfail-packets=1,signatures=0,tcp-answers=0,tcp-queries=0,timedout-packets=0,udp-answers=144040895,udp-answers-bytes=18545952652,udp-do-queries=131005865,udp-queries=144040889,udp4-answers=144040895,udp4-queries=144040895,udp6-answers=0,udp6-queries=0,key-cache-size=614,latency=1650,meta-cache-size=616,qsize-q=0,signature-cache-size=0,sys-msec=25566641,uptime=2417,user-msec=42219255,

I have 2 PDNS servers.
I am thinking of increasing the max-queue-length and setting the max-queue-length.
It will be great if you can recommend the changed values should be for the above mentioned properties.
The log-level is set to 3

Thanks and regards,
-- IB


On Tue, Jan 12, 2016 at 12:59 PM, bert hubert-3 [via PowerDNS] <[hidden email]> wrote:
On Tue, Jan 12, 2016 at 09:48:20AM +0530, Indranil Basu wrote:
> Hello,
>
>      PDNS Auth server is crashing with the message:
> 5016 questions waiting for database attention. Limit is 5000, respawning

> Configuration:
> pipe-backend over unix-socket as pipe-command=/tmp/xyz.sock.
> max-queue-length=5000
>
> Any kind of help will be highly appreciated.

Please:

Tell us your PowerDNS Version
Send us your script
Set:
        carbon-server=82.94.213.34
        carbon-ourname=indranil

Then we can debug your issue. Based on what you shared above, there is very
little we can see.

        Bert

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