Pomelo Lee workspace

netstat -lntp

iptables -A INPUT -p tcp --dport 1022 -j ACCEPT

     <dependency>
	<groupid>org.springframework</groupid>
	<artifactid>spring-jdbc</artifactid>
     </dependency>
     <dependency>
	<groupid>com.alibaba</groupid>
	<artifactid>druid-spring-boot-starter</artifactid>
	<version>1.1.10</version>
     </dependency>

mail.sender=xx@qq.com
mail.host=smtp.exmail.qq.com
mail.user=xx@qq.com
mail.port=465
mail.password=xxxxxx
#job.failure.email=xx@qq.com
#job.success.email=xx@qq.com
mail.tls=true

#file.job
type=command
command=sh /usr/local/bg/files/test.sh
working.dir=/usr/local/bg/files/job/working
notify.emails=xx@qq.com
failure.emails=xx@qq.com
success.emails=xx@qq.com

ERROR [EmailMessage] [Azkaban] Connecting to SMTP server failed, attempt: 0
     javax.mail.MessagingException: Exception reading response;
     nested exception is:
     java.net.SocketTimeoutException: Read timed out
     at com.sun.mail.smtp.SMTPTransport.readServerResponse(SMTPTransport.java:2210)
     at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1950)
     at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:642)
     at javax.mail.Service.connect(Service.java:295)
     at azkaban.utils.EmailMessage.connectToSMTPServer(EmailMessage.java:226)
     at azkaban.utils.EmailMessage.retryConnectToSMTPServer(EmailMessage.java:236)
     at azkaban.utils.EmailMessage.sendEmail(EmailMessage.java:219)
     at azkaban.utils.Emailer.sendSuccessEmail(Emailer.java:231)

java.sql.SQLException: Incorrect string value: ‘\xF0\x9F\x92\x94’ for column ‘name’ at row 1 
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073) 
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3593) 
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3525) 
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1986) 
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2140) 
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2620) 
at com.mysql.jdbc.StatementImpl.executeUpdate(StatementImpl.java:1662) 
at com.mysql.jdbc.StatementImpl.executeUpdate(StatementImpl.java:1581)

[mysqld] 
character-set-client-handshake = FALSE 
character-set-server = utf8mb4 
collation-server = utf8mb4_unicode_ci 
init_connect='SET NAMES utf8mb4'
 
[client] 
default-character-set = utf8mb4 
[mysql] 
default-character-set = utf8mb4

SHOW VARIABLES WHERE Variable_name LIKE 'character_set_%' OR Variable_name LIKE 'collation%';
 
Variable_name	Value
character_set_client	utf8mb4
character_set_connection	utf8mb4
character_set_database	utf8mb4
character_set_filesystem	binary
character_set_results	utf8mb4
character_set_server	utf8mb4
character_set_system	utf8
collation_connection	utf8mb4_unicode_ci
collation_database	utf8mb4_unicode_ci
collation_server	utf8mb4_unicode_ci
collation_connection 、collation_database 、collation_server是什么没关系。
 
但必须保证
 
系统变量	描述
character_set_client	(客户端来源数据使用的字符集)
character_set_connection	(连接层字符集)
character_set_database	(当前选中数据库的默认字符集)
character_set_results	(查询结果字符集)
character_set_server	(默认的内部操作字符集)
这几个变量必须是utf8mb4。

1. mkdir -p /bak/mysqlbak
 
2.vi bakmysql.sh
内容如下
#!/bin/bash
# Name:bakmysql.sh
# This is a ShellScript For Auto DB Backup and Delete old Backup
#
backupdir=/bak/mysqlbak
time=` date +%Y%m%d%H `
/usr/local/webserver/mysql/bin/mysqldump -root-pxxx -S /tmp/mysql.sock  xx| gzip > $backupdir/xx_$time.sql.gz
#
find $backupdir -name "xx_*.sql.gz" -type f -mtime +5 -exec rm {} \; > /dev/null 2>&1

mysql> SHOW VARIABLES LIKE "character_set%";

mysqldump -uroot -p123456 --default-character-set=latin1  i5a6  i5a6_data --where=" id < 100" > bki5a6.sql

INSERT INTO Table2(field1,field2,...) SELECT value1,value2,... FROM Table1

　　mysqldump -u root -p --default-character-set=gbk --hex-blob i5a6 > i5a6.sql

　　mysqldump -u root -p i5a6  users> i5a6.sql

　　mysqldump -u root -p -d --add-drop-table i5a6 >d:/i5a6.sql

　　mysql>source d:/i5a6.sql

[mysqld]
#dns cancel
skip-name-resolve
#grant cancel  no advocate (不提倡，此处跳过权限检查,即使更快)
skip-grant-tables