Mysql- journaled file system

MySQL in the log include: error logging, general query logs, binary logs, slow query log, and so on. Here are the more common under the main two functions: general query log and slow query log.

Error Log: record start, occur when running or stopping mysqld issues.
General Log: record client connections and executed statements established.
Binary log: a record of all changes to the data in the statement. Also for replication.
Slow query log: a record of all queries or queries without using an index of all executions for more than long_query_time seconds.
Innodb log: innodb redo log

# Query Error log file path 
MySQL > Show the Variables like  ' log_error ' ; 
# log file path common query 
MySQL > Show the Variables like  ' general_log_file ' ; 
# query slow query log file path 
MySQL > Show the Variables like  ' slow_query_log_file ' ;

Error Log