repl

]) | Re.findall (pattern, string[, flags]):Searches for a string, returning all matching substrings as a list.Import= re.compile (R'\d+')print p.findall (' ONE1TWO2THREE3FOUR4 ' ## #Output# ## # [' 1 ', ' 2 ', ' 3 ', ' 4 ']5. Finditer (string[, pos[, Endpos]) | Re.finditer (pattern, string[, flags]):Searches for a string that returns an iterator that accesses each matching result (match object) sequentially. import re p = re.compile (R " \d+ " ) for m in P.finditer ( ' one1two2three3f

the Matchobject object (see Third) 3:split (Pattern, string[, Maxsplit = 0])To separate a string with pattern>>> re.split (' w+ ', ' Words, Words, Words. ')[' Words ', ' Words ', ' Words ', ']Bracket ' () ' has special function in pattern, please check the manual 4:findall (pattern, string[, flags])More commonly used,Find the pattern-compliant expression from within a string and return to the list of lists 5:sub (Pattern, REPL, string[, Count])

also start successfully, but if the following configuration modifies the my.cnf file from the server parameter, you will find that the file has been changed, but when the service is restarted, the modified configuration is not executed, and you A list of MySQL folders will find a lot of. My.cnf.swp and other intermediate files. This is because MySQL did not read the my.cnf when it was started. At this time as long as the my.cnf file permissions to change to my_new.cnf the same permissions as OK

1. First download the latest version of MySQL Server (http://dev.mysql.com/downloads/windows/installer/) 2. Install MySQL server on two machines MYSQL 1:192.168.0.104 (hereinafter referred to as 104) MYSQL 2:192.168.0.103 (hereinafter referred to as 103) 3. Configure MySQL server to start binary Logging.Add the following configuration information in the 104 My.ini file (typically in C:\PROGRAMDATA\MYSQL\MYSQL Server 5.6\my.ini) [Mysqld]Log-bin=mysql-binServer-id=1 Add the following configuration

Label:First learn about the one or twoOne, (create user under MySQL and give permission) root user Create SQL statement of Yong UserCREATE USER ' yong ' @ ' localhost ' identified by ' yong2022 ';GRANT USAGE on *. * to ' yong ' @ ' localhost ' identified by ' yong2022 ' with max_queries_per_hour 0 max_connections_per_hour 0 MAX _updates_per_hour 0 max_user_connections 0;FLUSH privileges; Second, (Database login)1. Start the MySQL service in the background/data/mysql/bin/mysqld_safe【2, the n

installed node.Configure MHA Manager belowInstallation dependenciesYum install-y perl perl-config-tiny perl-email-date-forma perl-log-dispatch perl-mime-liteperl-mime-typesPerl-mail-sender perl-mail-sendmail perl-mailtools perl-parallel-forkmanagerperl-params-validate perl-Time-HiRes Perl-timedatePull Mha-manager installation package from GitCd/root/soft git clone cd mha-manager perl makefile.pl make make installConfiguring the Hosts FileVim/etc/hosts 192.168.1.92 mha-manager 192.168.1.151 mys

child process, waiting until server was ready for connections.Forked process:1896Child process started successfully, parentexiting[Email protected] mongodb-slave]# ss-lntup|grep MONGOTCP LISTEN 0 *:27017 *:* Users: (("Mongod", 1709,6))TCP LISTEN 0 *:27018 *:* Users: (("Mongod", 1896,6)) to view the log files for an Mongodb-slave instance:[Email protected] logs]# Tailf/data/mongodb-slave/logs/mongodb.log2017-09-10t09:55:44.007+0800 I REPL [Replslave]

the slave. Last_Errno: 28 Last_Error: Error in Append_block event: write to '/tmp/SQL _LOAD-32343798-72213798-1.data' failed solution: First say Error cause: the master database executes load data infile, the files stored in load data infile after synchronization to the slave database are stored in/tmp by default (controlled by the slave_load_tmpdir parameter), and an error is returned because/tmp is not enough space. Therefore, you only need to set slave_load_tmpdir from the database to a part

-ignore-db options. # replicate-ignore-db = # The configuration file takes effect after restart [root @ master ~] # Service mysqld restart2. Create a copy user # Authorize the host in the 10.11.4.0 network segment on the master database, and obtain the replication slave permission from the Database User repl [root @ master ~] # Mysql-uroot-pEnter password: mysql> grant replication slave on *. * TO 'repl' @

This is a creation in Article, where the information may have evolved or changed. Recently in the development process will encounter some string matching related content, just to learn about the next Golang in the regexp module. Because the regular module for me is more about matching and processing strings, there are several ways to return as string types. regexpStructure and method definition of a module //正则结构体type Regexp struct { // contains filtered or unexported fields}//初始化结构体对象的方法

There is a database online. In slowlog, there are a lot of records similar to the following: # Time: 13082313: 56: 08 # User @ Host: repl [repl] @ slave [10. x. x. x] # Query_time: 9.000833Lock _ time: 0.20.00rows _ sent: 1Rows_examined: 1SETtimestamp1377237368; # administratorcomman There is a database online. In the slow log, there are a lot of records similar to the following: # Time: 130823 13:56:08 # U

CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP comment 'last executed time ', Primary key ('id ') ) ENGINE = InnoDB default charset = utf8 Add a new master: The Code is as follows: Insert into 'rotate _ master' ('Master _ host', 'Master _ port', 'Master _ log_file ', 'Master _ log_pos', 'in _ use', 'weight ') Values -- Master 1, Weight = 1, and set it to the current master ('1970. 168.0.1 ', 192, 'mysqlbinlog. 100', 3307, 1 ), -- Master 2, Weight = 2 ('192. 168.0.2 ', 192, 'mysqlbinlog. 100',

table, you can manually write the filtered SQL statement: Publish the subscription options of the table and create a forced subscription: After the publishing is successfully established, a new job is added to the Publishing Server: [Clearing invalid subscriptions] Two new jobs are added to the distributor: [JIN001-dack-dack-5] type [REPL snapshot] [JIN001-dack-3] type [REPL Log Reader] The blue name

; pattern.findall (' hhmichaelhh ') [' hh ', ' hh '] FinditerRe.finditer (pattern, string[, flags])Similar to FindAll, finds all substrings that match the regular expression in the string and makes up an iterator to return. The same regexobject are:Finditer (string[, pos[, Endpos])SubRe.sub (Pattern, REPL, string[, Count, flags])Finds all substrings matching the regular expression pattern in string strings and replaces them with another strin

servers are paused. After the pause is resumed, no transaction changes are lost)You can filter data in a published table. For example, you can only select some columns in the table:For example, if you only select some qualified records in the table, you can manually write the filtered SQL statement:Publish the subscription options of the table and create a forced subscription:After the publishing is successfully established, a new job is added to the Publishing Server: [Clearing invalid subscri

This article introduces the re module of the Python standard library. The re module provides a series of powerful regular expression tools that allow you to quickly check whether a given string matches a given pattern (match function ), or include this mode (search function ). Regular expressions are strings written in a compact (and mysterious) syntax.1. common methods Common methods Description Match (pattern, string, flags = 0) If the start of the string matches th

time slices that have already been repeated ', 'lastexecutetime' timestamp not null default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP comment 'Last executed time', primary key ('id') ENGINE = InnoDB default charset = utf8 adds a new master: insert into 'rotate _ Master' ('master _ host', 'master _ port', 'master _ log_file ', 'master _ log_pos', 'in _ use ', 'weight') values -- master 1, weight = 1, and set it to the current master ('123. 168.0.1 ', 3307, 'mysqlbinlog. 000542 ', 192, 1), --

) ', "afdsfwwwfkdjfsdfsdwww") Print Re.findall (' (? FinditerRe.finditer (pattern, string[, flags])Finditer (string[, pos[, Endpos])Description: Similar to FindAll, finds all substrings that match the regular expression in the string and makes up an iterator to return. The same regexobject are:SubRe.sub (Pattern, REPL, string[, Count, flags])Sub (REPL, string[, count=0])Description: Finds all subs

_compile (pattern, flags). Search (String)Search (pattern, string, flags=0)3. FindAll (Pattern, string, flags=0)Both match and search are used to match single values, that is, only one of the strings can be matched, and if you want to match all eligible elements in a string, you need to use FindAll.findall，获取非重复的匹配列表；如果有一个组则以列表形式返回，且每一个匹配均是字符串；如果模型中有多个组，则以列表形式返回，且每一个匹配均是元祖；空的匹配也会包含在结果中def findall (pattern, string, flags=0): "" "Return A list of all non-overlapping Matches in the string. I

Similarly, finds all substrings that match the regular expression in the string and makes up an iterator to return. RegexObjectThere are also:finditer(string[, pos[, endpos]])Subre.sub(pattern, repl, string[, count, flags])stringfinds all substrings in the string that match the regular expression pattern , replacing them with another string repl . If no matching string is found pattern , a string that has