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Displaying posts with tag: wsrep (reset)

Tracing down a problem, finding sloppy code
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Daniel was tracking down what appeared to be a networking problem….

  • server reported 113 (No route to host)
  • However, an strace did not reveal the networking stack ever returning that.
  • On the other side, IP packets were actually received.
  • When confronted with mysteries like this, I get suspicious – mainly of (fellow) programmers.
  • I suggested a grep through the source code, which revealed  return -EHOSTUNREACH;
  • Mystery solved, which allowed us to find what was actually going on.

Lessons:

  • Don’t just believe or presume the supposed origin of an error.
  • Programmers often take shortcuts that cause grief later. I fully appreciate how the above code came about, but I still think it was wrong. Mapping a
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    MariaDB Galera Cluster 5.5.33a Now Available
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    The MariaDB project is pleased to announce the immediate availability of MariaDB Galera 5.5.33a. This is a Stable (GA) release. See the Release Notes and Changelog for detailed information on this release and the Galera section of the MariaDB Knowledge Base for general information about Galera Cluster.

    Download MariaDB Galera 5.5.33a

    Release Notes

      [Read more...]
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