语源科技BlogJava-himalayas

install jar to repository

himalayas — Thu, 12 Jun 2014 09:23:00 GMT

mvn install:install-file -DgroupId=com.oracle -DartifactId=ojdbc6 -Dversion=6.0.0 -Dpackaging=jar -Dfile=C:\ojdbc6.jar

himalayas 2014-06-12 17:23 发表评论

python logging 基于配置文件的使用方式

himalayas — Mon, 17 Dec 2012 02:07:00 GMT

配置文件名 log4p.conf

[loggers]

keys=root

[handlers]

keys=TimeHandler_info,TimeHandler_debug,TimeHandler_error

[formatters]

keys=simpleFormatter

[logger_root]

level=DEBUG

handlers=TimeHandler_info,TimeHandler_debug,TimeHandler_error

[handler_TimeHandler_info]

class=logging.handlers.TimedRotatingFileHandler

level=INFO

formatter=simpleFormatter

args=('/tmp/workengine/logs/workengine-info.log','H',6, 'w')

[handler_TimeHandler_debug]

class=logging.handlers.TimedRotatingFileHandler

level=DEBUG

formatter=simpleFormatter

args=('/tmp/workengine/logs/workengine-debug.log','H',6 ,'w')

[handler_TimeHandler_error]

class=logging.handlers.TimedRotatingFileHandler

level=ERROR

formatter=simpleFormatter

args=('/tmp/workengine/logs/workengine-error.log','D',1, 'w')

[formatter_simpleFormatter]

format=%(asctime)s %(levelname)-5s %(lineno)d %(message)s

加载配置：
注意：在项目进程入口的地方加入这一句就可以了，如果系统有命令行的方式调用py脚本，要在被调脚本开始的地方重新加入本行

logging.config.fileConfig("log4p.conf")

使用：

logger=logging.getLogger()

logger.info("info")

logger.error("error")

logger.debug("debug")

himalayas 2012-12-17 10:07 发表评论

mysql 5.5.19 主从配置+读写分离

himalayas — Tue, 10 Jan 2012 06:00:00 GMT

master:10.13.120.236

slave:10.13.120.233

步骤一：安装master

下载mysql-5.1.60-linux-x86_64-glibc23.tar.gz 放到/home/a/soft/下

shell>sudo groupadd mysql

shell>sudo useradd -r -g mysql mysql

shell>cd /home/a/soft/

shell>tar zxvf mysql-5.1.60-linux-x86_64-glibc23.tar.gz

shell>cd /usr/local/

shell>sudo ln -s /home/a/soft/mysql-5.1.60-linux-x86_64-glibc23 mysql

shell> cd mysql

shell>sudo chown -R mysql .

shell>sudo chgrp -R mysql .

shell>sudo scripts/mysql_install_db --user=mysql

shell>sudo chown -R root .

shell>sudo chown -R mysql data

# Next command is optional

shell>sudo cp support-files/my-medium.cnf /etc/my.cnf

shell>sudo bin/mysqld_safe --user=mysql &

# Next command is optional

shell>sudo cp support-files/mysql.server /etc/init.d/mysql.server

#配置my.cnf

####################################

binlog-do-db=phpdb

binlog-ignore-db=mysql

log-bin=/usr/local/mysql/log/updatelog

log-slave-updates

slave-skip-errors=all

#####################################

$sudo service mysql.server start

$mysql -uroot -p

改变当前数据库为mysql：

mysql>use mysql

设置从本地主机登录的root帐号密码：

mysql>set password for root@localhost=password('root');

删除匿名帐号：

mysql>delete from user where user='';

删除密码为空的帐号：

mysql>delete from user where password='';

删除允许非localhost主机登录的帐号：

mysql>delete from user where host<>'localhost';

执行下面的命令使更改生效：

mysql>flush privileges;

mysql>update user set host = '%' where user = 'root';

mysql>create database phpdb;

mysql>use phpdb;

mysql>create table person(id int(10) primary key auto_increment,name varchar(100) not null);

#dump主库数据

mysql>flush tables with read lock;

$mysqldump -h127.0.0.1 -p3306 -uroot -p phpdb > /mnt/phpdb.sql

（/mnt目录是我自己做的NFS，就是方便不同机器间使用文件，不用nfs也可以）

mysql> unlock tables;

mysql>use mysql

mysql>GRANT REPLICATION SLAVE ON *.* TO 'slave1_user'@'10.13.120.233' IDENTIFIED BY 'root';

$sudo service mysql.server restart

mysql> show master status;

+------------------+----------+--------------+------------------+

+------------------+----------+--------------+------------------+

+------------------+----------+--------------+------------------+

1 row in set (0.00 sec)

步骤二：安装slave

下载mysql-5.1.60-linux-x86_64-glibc23.tar.gz 放到/home/a/soft/下

shell>sudo groupadd mysql

shell>sudo useradd -r -g mysql mysql

shell>cd /home/a/soft/

shell>tar zxvf mysql-5.1.60-linux-x86_64-glibc23.tar.gz

shell>cd /usr/local/

shell>sudo ln -s /home/a/soft/mysql-5.1.60-linux-x86_64-glibc23 mysql

shell> cd mysql

shell>sudo chown -R mysql .

shell>sudo chgrp -R mysql .

shell>sudo scripts/mysql_install_db --user=mysql

shell>sudo chown -R root .

shell>sudo chown -R mysql data

# Next command is optional

shell>sudo cp support-files/my-medium.cnf /etc/my.cnf

shell>sudo bin/mysqld_safe --user=mysql &

# Next command is optional

shell>sudo cp support-files/mysql.server /etc/init.d/mysql.server

#配置my.cnf

#####################################################

server-id = 2

#master-host = mysql_master

#master-user = slave1_user

#master-password = root

#master-port = 3306

#master-connect-retry=60

replicate-ignore-db=mysql

replicate-do-db=phpdb

log-slave-update

slave-skip-errors=all

#####################################################

$sudo service mysql.server start

$mysql -uroot -p

改变当前数据库为mysql：

mysql>use mysql

设置从本地主机登录的root帐号密码：

mysql>set password for root@localhost=password('root');

删除匿名帐号：

mysql>delete from user where user='';

删除密码为空的帐号：

mysql>delete from user where password='';

删除允许非localhost主机登录的帐号：

mysql>delete from user where host<>'localhost';

执行下面的命令使更改生效：

mysql>flush privileges;

mysql>update user set host = '%' where user = 'root';

mysql>create database phpdb;

mysql>use phpdb;

$mysqldump -h127.0.0.1 -p3306 -uroot -p phpdb < /mnt/phpdb.sql
（mysql>source /mnt/phpdb.sql）

mysql>change master to master_host='10.13.120.236',

mysql>master_user='slave1_user',

mysql>master_password='root',

mysql>master_port=3306,

mysql>master_connect_retry=60,

mysql>MASTER_LOG_FILE='mysql-bin.000006',

mysql>MASTER_LOG_POS=107;

mysql>slave start;

mysql> show slave status\G;

*************************** 1. row ***************************

Slave_IO_State: Waiting for master to send event

Master_Host: 10.13.120.236

Master_User: slave1_user

Master_Port: 3306

Connect_Retry: 60

Master_Log_File: mysql-bin.000006

Read_Master_Log_Pos: 2366

Relay_Log_File: canggu-OptiPlex-760-relay-bin.000002

Relay_Log_Pos: 2512

Relay_Master_Log_File: mysql-bin.000006

Slave_IO_Running: Yes

Slave_SQL_Running: Yes

Replicate_Do_DB: phpdb

Replicate_Ignore_DB: mysql

Replicate_Do_Table:

Replicate_Ignore_Table:

Replicate_Wild_Do_Table:

Replicate_Wild_Ignore_Table:

Last_Errno: 0

Last_Error:

Skip_Counter: 0

Exec_Master_Log_Pos: 2366

Relay_Log_Space: 2682

Until_Condition: None

Until_Log_File:

Until_Log_Pos: 0

Master_SSL_Allowed: No

Master_SSL_CA_File:

Master_SSL_CA_Path:

Master_SSL_Cert:

Master_SSL_Cipher:

Master_SSL_Key:

Seconds_Behind_Master: 0

Master_SSL_Verify_Server_Cert: No

Last_IO_Errno: 0

Last_IO_Error:

Last_SQL_Errno: 0

Last_SQL_Error:

Replicate_Ignore_Server_Ids:

Master_Server_Id: 1

1 row in set (0.00 sec)

ERROR:

No query specified

mysql>slave stop;

mysql>change master to master_host='10.13.120.236',

master_user='slave1_user',
master_password='root',
master_port=3306,
master_connect_retry=60,
MASTER_LOG_FILE='mysql-bin.000006',
MASTER_LOG_POS=107;

配置读写分离

下载mysql-proxy-0.8.2-linux-glibc2.3-x86-32bit.tar.gz
解压并cp到/usr/local/mysql-proxy
在/usr/local/mysql-proxy/bin下创建文件mysql-proxy.cnf添加如下内容：
[mysql-proxy]

daemon=true

admin-address=127.0.0.1:4041

proxy-address=:3306

admin-username=admin

admin-password=admin

admin-lua-script=/usr/local/mysql-proxy/share/doc/mysql-proxy/admin-sql.lua

proxy-read-only-backend-addresses=10.13.120.233:3306

proxy-backend-addresses=10.13.120.236:3306

proxy-lua-script=/usr/local/mysql-proxy/share/doc/mysql-proxy/rw-splitting.lua

log-file=/usr/local/mysql-proxy/logs/log-debug.log

log-level=debug

启动代理：
/usr/local/mysql-proxy/bin/mysql-proxy --daemon --defaults-file=mysql-proxy.cnf

himalayas 2012-01-10 14:00 发表评论

ubuntu11+ 配置NFS（服务器 + 客户端）

himalayas — Mon, 09 Jan 2012 05:02:00 GMT

NFS服务器 10.13.120.232
NFS客户端 10.13.120.233 10.13.120.236 ......

------------------步骤一：NFS服务器配置------------------

$sudo apt-get install nfs-kernel-server
$sudo mkdir /home/a/nfsroot
$sudo chmod 777 /home/a/nfsroot

$sudo vim /etc/exports
#添加如下内容：

/home/a/nfsroot *(rw,sync,no_root_squash)

$sudo vim /etc/hosts.deny
#添加如下内容

portmap:ALL

lockd:ALL

mountd:ALL

rquotad:ALL

statd:ALL

$sudo vim /etc/hosts.allow
#添加如下内容

portmap: 10.13.120.

lockd: 10.13.120.

rquotad: 10.13.120.

mountd: 10.13.120.

statd: 10.13.120.

$sudo dpkg-reconfigure portmap

选择：NO

$sudo /etc/init.d/nfs-kernel-server restart

$sudo /etc/init.d/portmap restart

#在服务器上本地挂载测试

$sudo mount localhost:/home/a/nfsroot /mnt

$ df /mnt

文件系统 1K-块已用可用已用% 挂载点

localhost:/home/a/nfsroot

147794432 47781888 92505088 35% /mnt

-----------------------步骤二：NFS客户端配置--------------------------------

$ sudo apt-get install nfs-common

$ sudo mount -t nfs 10.13.120.232:/home/a/nfsroot /mnt

$ df /mnt

文件系统 1K-块已用可用已用% 挂载点

10.13.120.232:/home/a/nfsroot

147794432 47781888 92504576 35% /mnt

himalayas 2012-01-09 13:02 发表评论

mysql-5.1.60-linux-x86_64-glibc23 安装

himalayas — Sun, 01 Jan 2012 08:02:00 GMT

下载mysql-5.1.60-linux-x86_64-glibc23.tar.gz放到/home/a/soft/下
shell>sudo groupadd mysql 
shell>sudo useradd -r -g mysql mysql 
shell>cd /home/a/soft/ 
shell>tar zxvf mysql-5.1.60-linux-x86_64-glibc23.tar.gz
shell>cd /usr/local/ 
shell>sudo ln -s /home/a/soft/mysql-5.1.60-linux-x86_64-glibc23 mysql 
shell> cd mysql 
shell>sudo chown -R mysql . 
shell>sudo chgrp -R mysql . 
shell>sudo scripts/mysql_install_db --user=mysql 
shell>sudo chown -R root . 
shell>sudo chown -R mysql data 
shell>sudo cp support-files/my-medium.cnf /etc/my.cnf 
#配置/etc/my.cnf
     ......
shell>sudo ./scripts/mysql_install_db --user=mysql
shell>sudo cp support-files/mysql.server /etc/init.d/mysql.server
$sudo service mysql.server start
$mysql -uroot -p
改变当前数据库为mysql：
mysql>use mysql
设置从本地主机登录的root帐号密码：
mysql>set password for root@localhost=password('root');
删除匿名帐号： 
mysql>delete from user where user='';
删除密码为空的帐号：
mysql>delete from user where password='';
删除允许非localhost主机登录的帐号：
mysql>delete from user where host<>'localhost';
执行下面的命令使更改生效：
mysql>flush privileges; 
mysql>update user set host = '%' where user = 'root';

himalayas 2012-01-01 16:02 发表评论

Linux常用几种打包、压缩、解压命令，（备用）

himalayas — Mon, 19 Dec 2011 07:22:00 GMT

01-.tar格式 
解包：[＊＊＊＊＊＊＊]$ tar xvf FileName.tar 
打包：[＊＊＊＊＊＊＊]$ tar cvf FileName.tar DirName（注：tar是打包，不是压缩！） 
 02-.gz格式 
解压1：[＊＊＊＊＊＊＊]$ gunzip FileName.gz 
解压2：[＊＊＊＊＊＊＊]$ gzip -d FileName.gz 
压 缩：[＊＊＊＊＊＊＊]$ gzip FileName  
03-.tar.gz格式 
解压：[＊＊＊＊＊＊＊]$ tar zxvf FileName.tar.gz 
压缩：[＊＊＊＊＊＊＊]$ tar zcvf FileName.tar.gz DirName  
04-.bz2格式 解压1：[＊＊＊＊＊＊＊]$ bzip2 -d FileName.bz2 
解压2：[＊＊＊＊＊＊＊]$ bunzip2 FileName.bz2 
压 缩： [＊＊＊＊＊＊＊]$ bzip2 -z FileName  
05-.tar.bz2格式 
解压：[＊＊＊＊＊＊＊]$ tar jxvf FileName.tar.bz2 
压缩：[＊＊＊＊＊＊＊]$ tar jcvf FileName.tar.bz2 DirName  
06-.bz格式 
解压1：[＊＊＊＊＊＊＊]$ bzip2 -d FileName.bz 
解压2：[＊＊＊＊＊＊＊]$ bunzip2 FileName.bz 
 07-.tar.bz格式 
解压：[＊＊＊＊＊＊＊]$ tar jxvf FileName.tar.bz  
08-.Z格式
 解压：[＊＊＊＊＊＊＊]$ uncompress FileName.Z 
压缩：[＊＊＊＊＊＊＊]$ compress FileName  
09-.tar.Z格式 
解压：[＊＊＊＊＊＊＊]$ tar Zxvf FileName.tar.Z 
压缩：[＊＊＊＊＊＊＊]$ tar Zcvf FileName.tar.Z DirName  
10-.tgz格式 解压：[＊＊＊＊＊＊＊]$ tar zxvf FileName.tgz  
11-.tar.tgz格式 
解压：[＊＊＊＊＊＊＊]$ tar zxvf FileName.tar.tgz 
压缩：[＊＊＊＊＊＊＊]$ tar zcvf FileName.tar.tgz FileName  
12-.zip格式 
解压：[＊＊＊＊＊＊＊]$ unzip FileName.zip 
压缩：[＊＊＊＊＊＊＊]$ zip FileName.zip DirName 
 13-.lha格式 解压：[＊＊＊＊＊＊＊]$ lha -e FileName.lha 
压缩：[＊＊＊＊＊＊＊]$ lha -a FileName.lha FileName  
14-.rar格式 
解压：[＊＊＊＊＊＊＊]$ rar a FileName.rar 
压缩：[＊＊＊＊＊＊＊]$ rar e FileName.rar   
15-.war格式
解压：unzip project.war -d project

himalayas 2011-12-19 15:22 发表评论

MYSQL字段int/bigint类型查询返回的结果不同（bug）

himalayas — Wed, 30 Nov 2011 01:49:00 GMT

项目组的同学进来在使用mysql的时候发现了一个问题，具体内容如下：
MYSQL 版本： Server version: 5.1.48-log Source distribution

咨询了DBA，我们发现在mysql进行值比较的时候

int：使用decimal类型比较（支持浮点数的比较）

Arg_comparator::compare_decimal

Arg_comparator::compare_decimal (this=0x121cc2b8) at item_cmpfunc.cc:1378

1378 int Arg_comparator::compare_decimal()

bigint：使用int类型比较

Arg_comparator::compare_int_signed

Arg_comparator::compare_int_signed (this=0x121cc2b8) at item_cmpfunc.cc:1457

1457 int Arg_comparator::compare_int_signed()

himalayas 2011-11-30 09:49 发表评论

临时解决 cat 打开中文乱码

himalayas — Mon, 28 Nov 2011 03:24:00 GMT

cat test.txt | iconv -f GBK -t UTF-8

himalayas 2011-11-28 11:24 发表评论

取消SSH登录输入密码的问题（问题已解决）

himalayas — Thu, 24 Nov 2011 05:51:00 GMT

我的OS 是 Fedora16 我需要设置 ssh localhost 的时候不需要输入密码：
我的设置方式为：
ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa
cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
这种方式在ubuntu11+下是有效的但是在Fedora16 下我 ssh localhost的时候还是要求必须要输入密码，请问我如何搞啊？

问题已经解决：（解决办法）

$ vi /etc/ssh/sshd_config
    找到以下内容，并去掉注释符”#“
    RSAAuthentication yes
    PubkeyAuthentication yes
    AuthorizedKeysFile      .ssh/authorized_keys

$ chmod 600 ~/.ssh/authorized_keys

himalayas 2011-11-24 13:51 发表评论

ubuntu11+、fedora15+配置JDK

himalayas — Tue, 22 Nov 2011 11:43:00 GMT

假设将 JDK 安装到/usr/local/java 路径下：
$ sudo update-alternatives --install /usr/bin/java java /usr/local/java/bin/java 300
$ sudo update-alternatives --install /usr/bin/javac javac /usr/local/java/bin/javac 300
$ sudo update-alternatives --config java

himalayas 2011-11-22 19:43 发表评论

语源科技BlogJava-himalayas

install jar to repository

python logging 基于配置文件的使用方式

mysql 5.5.19 主从配置+读写分离

ubuntu11+ 配置NFS（服务器 + 客户端）

mysql-5.1.60-linux-x86_64-glibc23 安装

Linux常用几种打包、压缩、解压命令，（备用）

MYSQL字段int/bigint类型查询返回的结果不同（bug）

临时解决 cat 打开中文乱码

取消SSH登录 输入密码的问题（问题已解决）

ubuntu11+、fedora15+配置JDK

取消SSH登录输入密码的问题（问题已解决）