Requirement for show processlist.

[nwarr...@gmail.com]

I see that PRM seems to be calling "show processlist" during unset_master and other cases. 

      mysql_run -Q -sw -O $MYSQL $MYSQL_OPTIONS_REPL \
      -e 'SHOW PROCESSLIST\G' > $tmpfile
      
      if grep -i 'Waiting for master to send event' $tmpfile >/dev/null; then
         ocf_log info "MySQL slave has finished reading master binary log"
         break
      fi

Is there a reason it is being called uisng show processlist. Show slave status has the same set of statuses right ? 

thanks