月归档：四月 2011

oracle集群管理入门级命令

发表于 2011 年 4 月 5 日 由 惜分飞

1、crs的开启和关闭
关闭crs
/etc/init.d/init.crs stop
打开crs
/etc/init.d/init.crs start

2、启动和关闭所有的集群服务
关闭
crs_stop -all
启动
crs_start -all

3、手工启动集群服务的顺序
节点应用【nodeapps】–>ASM实例–>生产实例–>服务
srvctl start nodeapps -n node1
srvctl start nodeapps -n node2
srvctl start asm -n node2
srvctl start asm -n node1
使用sqlplus登录到各个节点 startup数据库

4、手工关闭集群服务的顺序
使用sqlplus登录到各个节点 shutdown immediate数据库
srvctl stop asm -n node2
srvctl stop asm -n node1
srvctl stop nodeapps -n node1
srvctl stop nodeapps -n node2

5、检查crs资源状态
crs_stat –t

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10g rac安装注意事项

发表于 2011 年 4 月 5 日 由 惜分飞

1、配置ip地址不要忘记网关
DEVICE=eth0
BOOTPROTO=none
BROADCAST=192.168.100.255
HWADDR=00:0C:29:28:8F:AC
IPADDR=192.168.100.101
NETMASK=255.255.255.0
NETWORK=192.168.100.0
ONBOOT=yes
TYPE=Ethernet
GATEWAY=192.168.100.1

2、域名解析不要忘记了localhost
127.0.0.1 localhost
192.168.100.101 node1
192.168.100.102 node2
192.168.100.201 node1-vip
192.168.100.202 node2-vip
10.10.17.221 node1-priv
10.10.17.222 node2-priv

3、重新安装处理
rm -f /etc/init.d/init.cssd
rm -f /etc/init.d/init.crs
rm -f /etc/init.d/init.crsd
rm -f /etc/init.d/init.evmd
rm -f /etc/rc2.d/K96init.crs
rm -f /etc/rc2.d/S96init.crs
rm -f /etc/rc3.d/K96init.crs
rm -f /etc/rc3.d/S96init.crs
rm -f /etc/rc5.d/K96init.crs
rm -f /etc/rc5.d/S96init.crs
rm -rf /etc/oracle/scls_scr
rm -f /etc/inittab.crs
rm -rf /u01/oraInventory
rm -rf /u01/app/crs
rm -rf /etc/ora*
rm -rf /etc/init.d/init.*
rm -f /usr/local/bin/*
rm -rf /opt/ORCLfmap
rm -rf /opt/oracle/admin
dd if=/dev/null of=/dev/raw/raw2 bs=209715200 count=1
dd if=/dev/null of=/dev/raw/raw1 bs=104857600 count=1
dd if=/dev/null of=/dev/raw/raw3 bs=1232896 count=1000
dd if=/dev/null of=/dev/raw/raw4 bs=1232896 count=1000
Note：dd操作效果不好，可以在执行root.sh到Startup will be queued to init within 90 seconds.挂起后，执行$CRS_HOME/install/rootdeinstall.sh，然后再执行root.sh

4、因内网ip地址不能被自动添加到vip中处理
出现现象：
Checking existence of VIP node application (required)
Check failed.
Check failed on nodes:
node2,node1
解决：使用root账户运行图画界面vipca，手工添加vip的域名和地址

5、remote_listener和tns名称一致
show parameter remote_listener
NAME TYPE VALUE
———————————— ———– ————-
remote_listener string LISTENERS_XFF
tnsnames.ora

LISTENERS_XFF =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.100.201)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.100.202)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = xff)
)
)

6、各个节点时间一致
选择一种一个为时间参考节点
[root@node1 bin]# cat /etc/ntp.conf
server 127.127.1.0
fudge 127.127.1.0 stratum 11
driftfile /var/lib/ntp/drift
broadcastdelay 0.008

其他节点同步该时间
[root@node2 bin]# crontab -l
*/15 * * * * ntpdate node1

均开启ntpd服务
service ntpd start
chkconfig ntpd on

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wordpress中常用sql语句

发表于 2011 年 4 月 2 日 由 惜分飞

开启所有评论
UPDATE wp_posts
SET comment_status = ‘open’
WHERE post_status = ‘publish’;

关闭旧文章的留言
UPDATE wp_posts
SET comment_status = ‘closed’
WHERE post_date < '2009-01-01' AND post_status = 'publish' 删除所有的垃圾评论
DELETE FROM wp_comments
WHERE comment_approved = ‘spam’

删除所有文章修订版本(Revisions)以及它们的Meta数据
DELETE a,b,c
FROM wp_posts a
LEFT JOIN wp_term_relationships b ON (a.ID = b.object_id)
LEFT JOIN wp_postmeta c ON (a.ID = c.post_id)
WHERE a.post_type = ‘revision’

清理wp_postmeta表
DELETE FROM wp_postmeta WHERE meta_key = ‘_wp_old_slug’;
DELETE FROM wp_postmeta WHERE meta_key = ‘_revision-control’;
DELETE FROM wp_postmeta WHERE meta_value = ‘{{unknown}}’;

写成shell脚本，添加表优化，可以使用crontab定时调用处理
执行shell

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