slow query log analyzer

MySQL has a function is log down to run the slower SQL statement, the default is not this log, in order to open this function, to modify the my.cnf or in the MySQL boot when the add some parameters. If you modify inside the MY.CNF, add the following lines Long_query_time = 1 Log-slow-queries =/var/youpath/slow.log

Tags: log slow query log SQL MYSQ zed Val user lock form { "Template":"mysql-slow-log-*", "Settings": { "Index": { "Refresh_interval":"5s" } }, "Mappings": { "Mysql-

slow_query_log=on;Query OK, 0 rows affected (0.10 sec) mysql>show global variables like '%slow_query_log% ';+---------------------+-----------------------------------+ | variable_name | Value | +---------------------+-----------------------------------+ | Slow_query_log | On | | Slow_query_log_file | /data/mysql/iz28cmq5qeaz-slow.log | +---------------------+-----------------------------------+ 2 rows in Set (0.00 sec)The default for a long time is 1

The most basic is mysql's mysqlslowdump Easy to use: Mysqldumpslow-s c-t 20 host-slow.log Parameters: 1.-s, sorting, c, t, l, r, and ac, at, al, and ar are sorted by query times, time, lock time, and returned records respectively. Adding a is inverted.2.-t, top n. Keep up with the number to calculate the top number.3.-g, followed by a regular expression. First, mysqlsla is also a perl script, Web: http://hackmysql.com/mysqlsla At the same time, this

SQL and Index optimizationdatabase table Structure OptimizationSystem ConfigurationHardwaremysql> show variables like 'slow_query_log';+----------------+-------+| Variable_name | Value |+----------------+-------+| slow_query_log | OFF |+----------------+-------+1 row in set (0.00 sec)Slow log query does not open, you can open a bit.Find MY.CNF and add the foll

Redis is a single-threaded operation, and a slow execution, which allows for a large number of subsequent execution delays, greatly reduces throughput. Recording, querying, and monitoring redis slow execution is significant. Redis's slowlog are only recorded in memory and are highly efficient without worrying too much about performance. Off-topic, Redis is really a complete tool, not simply a memory databas

Tags: response system resources Log settings enable meaning code logging bringsMySQL's slow query log is a log record provided by MySQL, which is used to record a statement in MySQL that has a response time exceeding the threshold, which refers to SQL that runs longer than t

Format:mysqldumpslow [options] Slow query log pathOptions:-s sort mode, selectable values are C (number of records), T ( Query time ), L ( lock Time ), R ( return record ), a (average)-T displays the number of records-G followed by regular expressions (such as Left join), not case-sensitive.-R sequence ordering, th

Label:1. MongoDB starts from a configuration file Create configuration file:/usr/local/mongodb/etc/mongodb.conf The contents of the configuration file are: #Directory and relavent set DBPath =/var/mongodb/data logpath =/var/mongodb/logs/log.log profile=2 slowms=100 #repairpath =/var/mongodb/repair Pidfilepath =/usr/local/mongodb/mongodb.pid # Directoryperdb = True #sysinfo = True #verbose = True #logappend = True #cpu = True #Network and sec urity Set Noauth = True #port = 8888 #maxConns = 102

. Save sort Result: StoreSecond, slow query logSet timeout milliseconds: Slowlog-slower-than127.0. 0.1:6379set0OkSet maximum number of records: Slowlog-max-len127.0. 0.1:6379set3OKView log: Slowlog get127.0.0.1:6379>SetSc"Sun"OK127.0.0.1:6379>SetY"Yuan"OK127.0.0.1:6379>SetC"Ong"OK127.0.0.1:6379> SlowlogGet1)1) (integer)8//Log