Jacky, it's PTDEBUG, so run the tool like:
PTDEBUG=1 pt-online-schema-change ... > dbg 2>&1
If it gets stuck, CTRL-C to kill it. Then dbg will contain a lot of debug output. All debug output is printed to STDERR.
Jacky, it's PTDEBUG, so run the tool like:
PTDEBUG=1 pt-online- schema- change ... > dbg 2>&1
If it gets stuck, CTRL-C to kill it. Then dbg will contain a lot of debug output. All debug output is printed to STDERR.