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... /usr/lib64/mysql/plugin/ha_tokudb.so(_ZN7cleaner11run_cleaner... /usr/lib64/mysql/plugin/ha_tokudb.so(+0xcfeee)[0x7fb25bed3eee] …[Read more]