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Displaying posts with tag: status (reset)
Current events in the MySQL community

Jeremy has an article in LinuxMag. This is worth reading.

Handler_read_first MySQL Haiku

I was writing up some notes about a client’s status variables, and I’d had to remind myself of Handler_read_first. Handler_read_first is a counter that increments when the first entry in the index is read, which may indicate that a full index scan is being used. With this particular client, I ran a SHOW [...]

The invisible I/O thread failures are no more

To get the status of the replication slave, it is possible to check the Last_Error and Last_Errno fields from SHOW SLAVE STATUS. Unfortunately, they only give information about the status of the SQL thread (and not always that either). If the I/O thread fails, for example, because the server configuration is not correctly set up, or if the connection to the master is lost due to a network outage, it is necessary to dig through the error log to find out the reason. This might be possible, although annoying, for a DBA to do since he has access to the files on the machine where the server is running, but when using automatic recovery applications that watch the status of the replication, this is not practical. It is also easier to see the status of the server through a normal client connection, …

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