List:Cluster« Previous MessageNext Message »
From:Pekka Nousiainen Date:November 10 2009 5:56pm
Subject:Re: Send Buffers overloaded in NDB kernel
View as plain text  
On 091110, Boehm, Matthew wrote:

> I find it difficult to understand how 256M of buffer can be used up when
> all 3 machines (2 ndbd, 1 mysqld) are on the same gigE switch.

The "Send Buffers overloaded" error was added specifically for
overloaded binlogging to mysqld.  The mysqld receives events
(data changes) from all DB nodes.  Either the connections from DB nodes,
or the mysqld, or an attached replication channel cannot keep up.

In this case it would be the first one (DB events).  Or else you
have found a new case for this error.  Not sure if binlogging can
be disabled, others here will know.

Setting the buffer to 256M or higher does not help.  It cannot
keep up, so it will soon be full.

-- 
Pekka Nousiainen, Software Engineer, Sun Microsystems / MySQL
Thread
Send Buffers overloaded in NDB kernelMatthew Boehm3 Nov
  • Re: Send Buffers overloaded in NDB kernelPekka Nousiainen3 Nov
    • RE: Send Buffers overloaded in NDB kernelMatthew Boehm3 Nov
      • RE: Send Buffers overloaded in NDB kernelAndrew Hutchings4 Nov
        • RE: Send Buffers overloaded in NDB kernelMatthew Boehm10 Nov
          • Re: Send Buffers overloaded in NDB kernelPekka Nousiainen10 Nov
            • RE: Send Buffers overloaded in NDB kernelMatthew Boehm10 Nov
              • Re: Send Buffers overloaded in NDB kernelPekka Nousiainen10 Nov
                • RE: Send Buffers overloaded in NDB kernelMatthew Boehm10 Nov
                  • Re: Send Buffers overloaded in NDB kernelJonas Oreland10 Nov
                    • RE: Send Buffers overloaded in NDB kernelMatthew Boehm10 Nov
                      • RE: Send Buffers overloaded in NDB kernelMatthew Boehm11 Nov
                • RE: Send Buffers overloaded in NDB kernelMatthew Boehm10 Nov
              • Re: Send Buffers overloaded in NDB kernelRobert Klikics11 Nov
                • RE: Send Buffers overloaded in NDB kernelMatthew Boehm11 Nov
                  • Re: Send Buffers overloaded in NDB kernelRobert Klikics11 Nov
                    • RE: Send Buffers overloaded in NDB kernelMatthew Boehm11 Nov
                      • Re: Send Buffers overloaded in NDB kernelRobert Klikics11 Nov
                        • RE: Send Buffers overloaded in NDB kernelMatthew Boehm11 Nov
                        • Re: Send Buffers overloaded in NDB kernelPekka Nousiainen11 Nov
                          • Re: Send Buffers overloaded in NDB kernelRobert Klikics11 Nov