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Displaying posts with tag: toku_ft_flush_some_child (reset)

Troubleshooting TokuDB Corruption
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I recently ran across some TokuDB table corruption, which was not easily identifiable at first, and the error log entry was not too verbose either, so I wanted to share that experience here.

Basically, TokuDB crashed, and then mysqld had problems restarting afterward. Just for reference, the error log had the following in the stack trace:

/usr/lib64/mysql/plugin/ha_tokudb.so(+0x71c48)[0x7fb25be75c48]
/usr/lib64/mysql/plugin/ha_tokudb.so(+0x71cbd)[0x7fb25be75cbd]
/usr/lib64/mysql/plugin/ha_tokudb.so(_Z29toku_deserialize_bp_from_disk...
/usr/lib64/mysql/plugin/ha_tokudb.so(_Z23toku_ftnode_pf_callback...
/usr/lib64/mysql/plugin/ha_tokudb.so(_Z30toku_cachetable_pf_pinned_pair..
/usr/lib64/mysql/plugin/ha_tokudb.so(_Z24toku_ft_flush_some_child...
/usr/lib64/mysql/plugin/ha_tokudb.so(_Z28toku_ftnode_cleaner_callback...
  [Read more...]
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