[Pdns-users] Pdns Remote backend crash

[Aki Tuomi]

I'll have a look at this, can you please file a bug report at 

http://wiki.powerdns.com/trac

Regards,
Aki Tuomi

On Sat, Mar 02, 2013 at 12:21:01AM +0200, Aleksey Chudov wrote:
> Hello,
> 
> I encountered the following problem. When executing Remote backend
> (tested with Remote + socket, pipe and http) and distributor-threads
> parameter greater than 1 pdns_server process crash while performance
> testing.
> 
> Pdns was built on Debian 6.0.7
> 
> aptitude install libboost-program-options-dev
> libboost-serialization-dev liblua5.1-dev libz-dev
> wget http://downloads.powerdns.com/releases/pdns-3.2.tar.gz
> tar -xzf pdns-3.2.tar.gz
> cd pdns-3.2/
> ./configure --prefix=/usr --sysconfdir=/etc/powerdns
> --localstatedir=/var/run/pdns --libdir=/usr/lib/pdns
> --disable-shared --enable-static --enable-static-boost
> --enable-static-binaries --enable-pdns_server --disable-recursor
> --with-modules="pipe remote" --with-dynmodules=""
> make
> make install
> 
> 
> There is no errors when pdns_server starts with
> distributor-threads=1. Performance is quite good – 7k qps according
> to dnsperf statistics (32 instances of dnsperf simultaneously). But
> if I start pdns_server with distributor-threads greater than 1 and
> run more than one instance dnsperf simultaneously, the process
> crash.
> 
> log-level is set to 9 but only the following message is printed to log file
> 
> Feb 27 19:49:01 srv1 pdns[28609]: Got a signal 6, attempting to
> print trace:
> Feb 27 19:49:01 srv1 pdns[28609]: [0x49a720]
> Feb 27 19:49:01 srv1 pdns[28609]: [0x6598d0]
> Feb 27 19:49:01 srv1 pdns[28609]: [0x762f75]
> Feb 27 19:49:01 srv1 pdns[28609]: [0x6f5b90]
> Feb 27 19:49:01 srv1 pdns[28609]: [0x6f0ac5]
> Feb 27 19:49:01 srv1 pdns[28609]: [0x42b227]
> Feb 27 19:49:01 srv1 pdns[28609]: [0x47f202]
> Feb 27 19:49:01 srv1 pdns[28609]: [0x4a5e41]
> Feb 27 19:49:01 srv1 pdns[28609]: [0x456399]
> Feb 27 19:49:01 srv1 pdns[28609]: [0x45e9b7]
> Feb 27 19:49:01 srv1 pdns[28609]: [0x460825]
> Feb 27 19:49:01 srv1 pdns[28609]: [0x4e1244]
> Feb 27 19:49:01 srv1 pdns[28609]: [0x65561a]
> Feb 27 19:49:01 srv1 pdns[28609]: [0x741fa9]
> Feb 27 19:49:01 srv1 pdns[28607]: Our pdns instance (28609) exited
> after signal 6
> Feb 27 19:49:01 srv1 pdns[28607]: Respawning
> 
> I specifically checked that there is no such problem with Pipe
> backend only with Remote backend.
> 
> Any ideas?
> 
> 
> Best regards,
> Aleksey
> 
> _______________________________________________
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> Pdns-users at mailman.powerdns.com
> http://mailman.powerdns.com/mailman/listinfo/pdns-users
> 
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