mysql慢查询日志分析工具（python写的）-白红宇

mysql慢查询日志分析工具（python写的）

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发布时间：2019-06-26

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D:\NormalSoftware>python mysql_filter_slow_log.py ./mysql1-slow.log --no-duplic

ates --sort-avg-query-time --top=100 >> mysql_slow_test05.txt

469行要改为：

query_time = (float(numbers[1].split()[0]), float(numbers[2].split()[0]),

float(numbers[3].split()[0]), float(numbers[4]))

150 151行注释掉：

#locale.setlocale(locale.LC_NUMERIC,

# os.name == 'nt' and 'en' or 'en_US.ISO8859-1')

mysql_filter_slow_log.py

使用方法：（这里只介绍python的使用方法）

python mysql_filter_slow_log.py ./mysql1-slow.log --no-duplicates --sort-execution-count --top=10 >> mysql_slow_test.txt

备注：mysql1-slow.log 慢查询日志名称

--no-duplicates

--sort-execution-count

--top=10 取前十位

mysql_slow_test.txt 输出分析报告

附录：

官方给出的使用方法举例：

=====================================

                                                                
# Filter slow queries executed 
for
at least 
3
seconds not from root, remove duplicates,
# apply execution count as first sorting value and save first 
10
unique queries to file.
# In addition, remember last input file position and statistics.
php mysql_filter_slow_log.php -T=
3
-eu=root --no-duplicates --sort-execution-count --top=
10
--incremental linux-slow.log > mysql-slow-queries.log
# Start permanent filtering of all slow queries from now on: at least 
3
seconds or examining 
10000
rows, exclude users root and test
tail -f -n 
0
linux-slow.log | python mysql_filter_slow_log.py -T=
3
-R=
10000
-eu=root -eu=test &
# (-n 
0
outputs only lines generated after start of tail)
# Stop permanent filtering
kill `ps auxww | grep 
'tail -f -n 0 linux-slow.log'
| egrep -v grep | awk 
'{print $2}'
`
                     
                   

====================================

官方给出的命令参数：

==================================

                                                                            
-T=min_query_time
-R=min_rows_examined
-ih, --include-host
-eh, --exclude-host
-iu, --include-user
-eu, --exclude-user
-iq, --include-query
--date=date_first-date_last Include only queries between date_first (and date_last).
                            
Input:                    Date Range:
                            
13.11
.
2006
-> 
13.11
.
2006
- 
14.11
.
2006
(exclusive)
                            
13.11
.
2006
-
15.11
.
2006
-> 
13.11
.
2006
- 
16.11
.
2006
(exclusive)
                            
15
-
11
-
2006
-
11
/
13
/
2006
-> 
13.11
.
2006
- 
16.11
.
2006
(exclusive)
                            
>
13.11
.
2006
-> 
14.11
.
2006
- later
                            
13.11
.
2006
-            -> 
13.11
.
2006
- later
                            
<
13.11
.
2006
-> earlier    - 
13.11
.
2006
(exclusive)
                            
-
13.11
.
2006
-> earlier    - 
14.11
.
2006
(exclusive)
                            
Please 
do
not forget to escape the greater or lesser than symbols (><, i.e. 
'--date=>13.11.2006'
).
                            
Short dates are supported 
if
you include a trailing separator (i.e. 
13.11
.-
11
/
15
/).
--incremental Remember input file positions and optionally --no-duplicates statistics between executions in mysql_filter_slow_log.sqlite3
--no-duplicates Powerful option to output only unique query strings with additional statistics:
                
Execution count, first and last timestamp.
                
Query time: avg / max / sum.
                
Lock time: avg / max / sum.
                
Rows examined: avg / max / sum.
                
Rows sent: avg / max / sum.
--no-output Do not print statistics, just update database with incremental statistics
Default ordering of unique queries:
--sort-sum-query-time    [ 
1
. position]
--sort-avg-query-time    [ 
2
. position]
--sort-max-query-time    [ 
3
. position]
--sort-sum-lock-time     [ 
4
. position]
--sort-avg-lock-time     [ 
5
. position]
--sort-max-lock-time     [ 
6
. position]
--sort-sum-rows-examined [ 
7
. position]
--sort-avg-rows-examined [ 
8
. position]
--sort-max-rows-examined [ 
9
. position]
--sort-execution-count   [
10
. position]
--sort-sum-rows-sent     [
11
. position]
--sort-avg-rows-sent     [
12
. position]
--sort-max-rows-sent     [
13
. position]
--sort=sum-query-time,avg-query-time,max-query-time,...   You can include multiple sorting values separated by commas.
--sort=sqt,aqt,mqt,slt,alt,mlt,sre,are,mre,ec,srs,ars,mrs Every 
long
sorting option has an equivalent 
short
form (first character of each word).
--top=max_unique_query_count Output maximal max_unique_query_count different unique queries
--details                    Enables output of timestamp based unique query time lines after user list
                             
(i.e. # Query_time: 
81
Lock_time: 
0
Rows_sent: 
884
Rows_examined: 
2448350
).
--help Output 
this
message only and quit
[multiple] options can be passed more than once to set multiple values.
[position] options take the position of their first occurrence into account.
           
The first passed option will replace the 
default
first sorting, ...
           
Remaining 
default
ordering options will keep their relative positions.
                         
                       

====================================

官方给出的配置文件中管理慢日志参数的配置

====================================

                                                                                        
# I.e. you could add the following lines under the [mysqld] section of your my.ini or my.cnf configuration file:
# Log all queries taking more than 
3
seconds
long_query_time=
3
# minimum: 
1
, 
default
: 
10
# MySQL >= 
5.1
.
21
(or patched): 
3
seconds = 
3000000
microseconds
# long_query_time=
3.000000
# minimum: 
0.000001
(
1
microsecond)
# Activate the Slow Query Log
slow_query_log  # >= 
5.1
.
29
# log-slow-queries  # deprecated since 
5.1
.
29
# Write to a custom file name (>= 
5.1
.
29
)
# slow_query_log_file=file_name  # 
default
: /data_dir/host_name-slow.log
# Log all queries without indexes
# log-queries-not-using-indexes
# Log only queries which examine at least N rows (>= 
5.1
.
21
)
# min_examined_row_limit=
1000
# 
default
: 
0
# Log slow OPTIMIZE TABLE, ANALYZE TABLE, and ALTER TABLE statements
# log-slow-admin-statements
# Log slow queries executed by replication slaves (>= 
5.1
.
21
)
# log-slow-slave-statements
# MySQL 
5.1
.
6
through 
5.1
.
20
had a 
default
value of log-output=TABLE, so you should force
# Attention: logging to TABLE only includes whole seconds information
log-output=FILE
## Admin query 
for
online activation is possible since MySQL 
5.1
(without server restart)
## SET @
@global
.slow_query_log=
1
## SET @
@global
.long_query_time=
1
## Show current variables related to the Slow Query Log
## SHOW GLOBAL VARIABLES WHERE Variable_name REGEXP 
'admin|min_examined|log_output|log_queries|log_slave|long|slow_quer'
                             
                           