ORACLE RAC安装-性能与高可用测试

发布时间：2020-07-13 17:06:41 来源：网络阅读：2645 作者：背向天堂栏目：关系型数据库

从11G开始，安装RAC已经变成了一个体力活儿，但是RAC安装完成后，如何保证系统的稳定运行，如何得到系统的性能，这个对后期在线系统的稳定运行影响巨大。

下面是总结了最近1年多来工程实施中的一些经验。

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## 0. 环境检查

## 1. IO性能测试

## 2. 网络性能测试

## 3. 高可用测试

## 4. HP-UX 硬件查看命令

## 5. 日志收集

## 备注：该文档基于HP-UX平台整理，平台不同时请参考平台对应的操作命令

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

## 0. 环境检查

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

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# 0.1 系统时间/时区

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# date

# cat /etc/TIMEZONE

# cat /etc/default/tz

# echo $TZ

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# 0.2 检测内核参数/异步IO/网络参数

# 异步IO文件权限正确值为: oracle/oinstall 660 101 0x000104 /dev/async

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--HP

# kctune | sort

# ls -la /dev/async

# cat /etc/rc.config.d/nddconf

# netstat -inw

--Linux

# sysctl -a | sort

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# 0.3 互信检查

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$ more /etc/hosts | grep -Ev '^#|^$|127.0.0.1|vip|scan|:' | awk '{print "ssh " $2 " date;"}' > ping.sh

$ sh ./ping.sh

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# 0.4 集群状态检查

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# crsctl stat res -t

# olsnodes -n -i -s -t

# olsnodes -c

# oifcfg getif

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# 0.5 检查实例运行状态

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SQL>

set linesize 160;

select inst_id,instance_name, to_char(startup_time, 'yyyy-mm-dd hh34:mi:ss') START_TIME, status from gv$instance;

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# 0.6 检查ASM DG容量

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SQL>

select group_number,

name,

state,

type,

ROUND(total_mb / 1024, 2) TOTAL_GB,

ROUND(free_mb / 1024, 2) FREE_GB,

round((total_mb - free_mb) / (case total_mb

when 0 then

else

total_mb

end) * 100,

2) ratio

from v$asm_diskgroup;

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

## 1. IO性能测试

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

-----------------------------------------------------------------------------------

# 1.1 calibrate_io测试

-----------------------------------------------------------------------------------

SELECT D.NAME,

I.ASYNCH_IO

FROM V$DATAFILE D,

V$IOSTAT_FILE I

WHERE D.FILE# = I.FILE_NO

AND I.FILETYPE_NAME = 'Data File';

--Enabled both direct I/O and asynchronous I/O where possible.

ALTER SYSTEM SET filesystemio_options=setall SCOPE=SPFILE;

SET SERVEROUTPUT ON

DECLARE

l_latency PLS_INTEGER;

l_iops PLS_INTEGER;

l_mbps PLS_INTEGER;

BEGIN

DBMS_RESOURCE_MANAGER.CALIBRATE_IO (num_physical_disks => 26, --> 磁盘数量 select count(1) from v$asm_disk;

max_latency => 20, --> 最大延迟

max_iops => l_iops,

max_mbps => l_mbps,

actual_latency => l_latency);

DBMS_OUTPUT.put_line('Max IOPS = ' || l_iops);

DBMS_OUTPUT.put_line('Max MBPS = ' || l_mbps);

DBMS_OUTPUT.put_line('Latency = ' || l_latency);

END;

--监控IO及HBA卡的速率

# sar -H 2 10000

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# 1.2 fio测试

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

## 2. 网络性能测试

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

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# 2.1 netperf测试

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cd /usr/contrib/bin/tools

--服务器端

# netserver -4 -L 192.168.30.76 -p 8000

--客户端

# netperf -H 192.168.30.76 -p 8000 -n 20 -l 60

--测试UDP发包

# netperf -t UDP_RR -H 192.168.30.76 -p 8000 -l 10 -- -r 1500 1500

# netperf -t UDP_RR -H 192.168.30.76 -p 8000 -l 10 -- -r 9000 9000

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## 2.2 iperf测试，Linux中为iperf3

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--服务器端

# iperf -s -p 5001 -i 2

--客户端

# iperf -c 192.168.30.76 -P 4 -t 30 -i 2 -p 5001

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## 2.3 ftp速率测试

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ftp> put "|dd if=/dev/zero bs=32k count=10000" /dev/null

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# 2.4 MUT测试为9000 (tcpdump需要root权限)

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--lan902 心跳网卡

--192.168.20.67 对端心跳网卡地址

--从该节点通过访问对方的心跳IP来建立tcp连接，随后看上面抓到的TCP包即可看到mss值。如果为8960，则说明mtu为9000.

--通过netperf或ping进行发包测试，ICMP 长度为 8976

cd /usr/contrib/bin/tools

# tcpdump -i lan902 ip host 192.168.20.67

# telnet 192.168.20.67 22

# netperf -H 192.168.20.67 -p 8000 -n 20 -l 60

# ping 192.168.20.67 9000

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

## 3. 高可用测试

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

-----------------------------------------------------------------------------------

# 3.1 存储链路测试

# 查看操作系统日志中链路disabled和endable状态，查看HBA卡数据流量信息

# 查看磁盘链路聚合情况

# 存储链路测试过程中，全程开启DBMS_RESOURCE_MANAGER.CALIBRATE_IO进行加压

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--确认设备链路

# ioscan -m dsf /dev/rdisk/disk101

# tail -f /var/adm/syslog/syslog.log

# sar -H 2 10000

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# 3.2 网卡/交换机测试

# 查看集群日志是否有网络中断情况，查看ASM告警日志 (grid用户)

# 查看网卡聚合情况，查看网卡日志，查看是否丢包

# 网络测试过程中，全程开启netperf发包进行加压

-----------------------------------------------------------------------------------

grid$ cd $ORACLE_HOME/log/`hostname`/; tail -f alert`hostname`.log

grid$ cd $ORACLE_BASE/diag/asm/+asm/$ORACLE_SID/trace; tail -f alert_$ORACLE_SID.log

# glance -> l

# nwmgr -S apa -c lan902 -v

# cd /var/adm; netfmt -f nettl.LOG000

# ping IP

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

## 4. HP-UX 硬件查看命令

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

-----------------------------------------------------------------------------------

## 4.1 查看设备

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--FC设备

# ioscan -fnCfc

--网卡设备

# ioscan -fnClan

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## 4.2 查看FC设备状态

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# fcmsutil /dev/fcd1

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## 4.3 查看磁盘多路径信息

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# ioscan -m dsf /dev/rdisk/disk101

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## 4.4 查看网卡信息

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# lanscan -qv

# netstat -inw

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## 4.5 查看网卡绑定信息

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--网卡绑定信息

# nwmgr -S apa -c lan902 -v

--网卡优先级

# nwmgr -g -A all -c lan5 -S apa

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

## 5. 日志收集

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

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## 5.1 ASM日志 (grid)

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cd $ORACLE_BASE/diag/asm/+asm/$ORACLE_SID/trace; tail -f alert_$ORACLE_SID.log

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## 5.2 集群日志 (grid)

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cd $ORACLE_HOME/log/`hostname`/; tail -f alert`hostname`.log

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## 5.3 数据库日志 (oracle)

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cd $ORACLE_BASE/diag/rdbms/`echo ${ORACLE_SID%?}`/$ORACLE_SID/trace; tail -f alert_$ORACLE_SID.log

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## 5.4 操作系统日志 (root)

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tail -f /var/adm/syslog/syslog.log

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## 5.5 网卡日志 (root)

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cd /var/adm; netfmt -f nettl.LOG000

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ORACLE RAC安装-性能与高可用测试

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