Detected occurrence(s) of ‘WSREP: last inactive check more than

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Jason Mallory

• June 10, 2015 20:45

Seeing this several times. What exactly am I looking for and where?

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  Ashraf Sharif

  • June 11, 2015 03:07

  This is written out by the Galera nodes if they have trouble pinging each other:

  [Warning] WSREP: last inactive check more than PT1.5S ago (PT3.03891S), skipping check

  Usually its an indication of an unstable network or that the server is temporarily blocking on IO or is overloaded or swapping. You have the full entry in the MySQL error log. Take a look at them for all your Galera nodes and try to pinpoint when these warnings are occurring. You can use ClusterControl > Nodes to check:

  • The host is swapping
  • Any CPU/network/IO spike on that host
  • Timestamp when the problem occurs

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  Jason Mallory

  • June 11, 2015 15:07

  I seen that. But what am I looking for? Where would I be able to tell any of this was occuring?

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