时间：2021-07-01 10:21:17 帮助过：70人阅读
系统环境 硬件平台 操作 IBM 570 操作系统版本 AIX 5.3 物理内存 32G Oracle 产品及版本 10.2.0.5 RAC 业务类型 OLTP 背景概述 交易系统在xx月xx 日，节点二VIP异常下线导致节点二数据库服务失 效。接到请求后，第一时间进行连线处理。故障发生在凌晨 3点，
系统环境 硬件平台 & 操作
IBM 570
操作系统版本 AIX 5.3
物理内存 32G
Oracle 产品及版本 10.2.0.5 RAC
业务类型 OLTP
背景概述
交易系统在xx月xx 日，节点二VIP异常下线导致节点二数据库服务失
效。接到请求后，第一时间进行连线处理。故障发生在凌晨 3点，而且
AIX（errpt）、Oracle DB（alert.log ）、CRS （crsd.log 、ocssd.log、vip.log、
coredump ）等均没有留下太多有效信息，情况非常复杂。
问题详细诊断及分析
一、检查errpt日志：
节点二VIP异常下线时，节点二上无报错产生。
二、检查CRS日志：
节点一：
2012-04-29 03:42:33.180: [ CRSRES][11376]32startRunnable: setting CLIvalues
— 说明：节点一上仅有一行信息反映出故障期间节点一上CRS曾经执行过命令。
节点二：
2012-04-29 03:41:12.308: [ CRSAPP][11263]32CheckResource error forora.xxxxdb02.vip error code =
1
2012-04-29 03:41:12.335: [ CRSRES][11263]32In stateChanged,ora.xxxxdb02.vip target is ONLINE
2012-04-29 03:41:12.335: [ CRSRES][11263]32ora.xxxxdb02.vip on xxxxdb02went OFFLINE unexpectedly
2012-04-29 03:41:12.335: [ CRSRES][11263]32StopResource: setting CLIvalues
2012-04-29 03:41:12.340: [ CRSRES][11263]32Attempting to stop`ora.xxxxdb02.vip` on member
`xxxxdb02`
2012-04-29 03:41:12.893: [ CRSRES][11269]32In stateChanged,ora.xxxxdb.xxxxdb1.xxxxdb2.srv target
is ONLINE
2012-04-29 03:41:12.894: [ CRSRES][11269]32ora.xxxxdb.xxxxdb1.xxxxdb2.srvon xxxxdb02 went OFFLINE
unexpectedly
2012-04-29 03:41:12.894: [ CRSRES][11269]32StopResource: setting CLIvalues
2012-04-29 03:41:12.899: [ CRSRES][11269]32Attempting to stop`ora.xxxxdb.xxxxdb1.xxxxdb2.srv` on
member `xxxxdb02`
2012-04-29 03:41:12.958: [ CRSRES][11263]32Stop of `ora.xxxxdb02.vip` onmember `xxxxdb02`
succeeded.
2012-04-29 03:41:12.971: [ CRSRES][11263]32ora.xxxxdb02.vipRESTART_COUNT=0 RESTART_ATTEMPTS=0
2012-04-29 03:41:12.976: [ CRSRES][11263]32ora.xxxxdb02.vip failed onxxxxdb02 relocating.
2012-04-29 03:41:13.025: [ CRSRES][11263]32StopResource: setting CLIvalues
2012-04-29 03:41:13.029: [ CRSRES][11263]32Attempting to stop
`ora.xxxxdb02.LISTENER_XXXXDB02.lsnr` onmember `xxxxdb02`
2012-04-29 03:41:13.146: [ CRSRES][11269]32Stop of`ora.xxxxdb.xxxxdb1.xxxxdb2.srv` on member
`xxxxdb02` succeeded.
2012-04-29 03:41:13.146: [ CRSRES][11269]32ora.xxxxdb.xxxxdb1.xxxxdb2.srv RESTART_COUNT=0
RESTART_ATTEMPTS=1
2012-04-29 03:41:13.159: [ CRSRES][11269]32Restartingora.xxxxdb.xxxxdb1.xxxxdb2.srv on xxxxdb02
2012-04-29 03:41:13.164: [ CRSRES][11269]32startRunnable: setting CLIvalues
2012-04-29 03:41:13.164: [ CRSRES][11269]32Attempting to start `ora.xxxxdb.xxxxdb1.xxxxdb2.srv` on
member `xxxxdb02`
2012-04-29 03:41:45.618: [ CRSAPP][11269]32StartResource error forora.xxxxdb.xxxxdb1.xxxxdb2.srv
error code = 1
2012-04-29 03:41:45.799: [ CRSRES][11269]32Start of`ora.xxxxdb.xxxxdb1.xxxxdb2.srv` on member
`xxxxdb02` failed.
2012-04-29 03:41:45.820: [ CRSRES][11269]32ora.xxxxdb.xxxxdb1.xxxxdb2.srv failed on xxxxdb02
relocating.
2012-04-29 03:41:45.885: [ CRSRES][11269]32Cannot relocate ora.xxxxdb.xxxxdb1.xxxxdb2.srvStopping
dependents
2012-04-29 03:41:45.897: [ CRSRES][11269]32StopResource: setting CLIvalues
2012-04-29 03:42:29.483: [ CRSRES][11263]32Stop of `ora.xxxxdb02.LISTENER_XXXXDB02.lsnr` on member
`xxxxdb02` succeeded.
2012-04-29 03:42:29.496: [ CRSRES][11263]32Attempting to start`ora.xxxxdb02.vip` on member
`xxdb01np5`
2012-04-29 03:42:32.036: [ CRSRES][11263]32Start of `ora.xxxxdb02.vip`on member `xxdb01np5`
succeeded.
— 说明：节点二是故障节点，上面信息反映出，由于VIP检测异常导致节点二上VIP被强
制OFFLINE，同时CRS将基于VIP 资源的监听和数据库服务也进行了OFFLINE操作。
三、分析CRS状态：
由于故障期间客户很好的保留了现场环境，因此我们得以现场分析到CRS
状态。
Name Type Target State Host
------------------------------------------------------------
ora.xxxxdb.db application ONLINE ONLINE xxdb01np5
ora....sdb1.cs application ONLINE OFFLINE
ora....db1.srv application ONLINE ONLINE xxdb01np5
ora....db2.srv application ONLINE ONLINE xxxxdb02
ora....b1.inst application ONLINE ONLINE xxdb01np5
ora....b2.inst application ONLINE ONLINE xxxxdb02
ora....P5.lsnr application ONLINE ONLINE xxdb01np5
ora....np5.gsd application ONLINE ONLINE xxdb01np5
ora....np5.ons application ONLINE ONLINE xxdb01np5
ora....np5.vip application ONLINE ONLINE xxdb01np5
ora....P5.lsnr application ONLINE OFFLINE
ora....np5.gsd application ONLINE ONLINE xxxxdb02
ora....np5.ons application ONLINE ONLINE xxxxdb02
ora....np5.vip application ONLINE ONLINE xxdb01np5
— 说明：故障期间，节点二上的数据库（实例）资源仍然在运行，Nodeapp资源正常，
唯一被OFFLINE的是一个Service和listener 资源。但是我们注意到节点二上VIP 资源
已经被节点一接管过去。这说明，节点二的VIP（xxx.xxx.xxx.4 ）在排查问题的时候是
没问题的。
四、分析数据库告警日志
Sun Apr 29 03:41:13 BEIST 2012
ALTER SYSTEM SET service_names='xxxxdb'SCOPE=MEMORY SID='xxxxdb2';
Sun Apr 29 03:41:55 BEIST 2012
ALTER SYSTEM SET service_names=''SCOPE=MEMORY SID='xxxxdb2';
Sun Apr 29 03:41:55 BEIST 2012
Immediate Kill Session#: 1659, Serial#: 2
Immediate Kill Session: sess:70000038f773bb8 OS pid: 1180972
Sun Apr 29 03:41:55 BEIST 2012
Process OS id : 1180972 alive after kill
Errors in file
Immediate Kill Session#: 1660, Serial#: 2
Immediate Kill Session: sess:7000003847623c0 OS pid: 1179690
Sun Apr 29 03:41:56 BEIST 2012
Process OS id : 1179690 alive after kill
Errors in file/oracle/product/10.2.0/admin/xxxxdb/udump/xxxxdb2_ora_110596.trc
Immediate Kill Session#: 1661, Serial#: 2
Immediate Kill Session: sess:7000003837620c0 OS pid: 1300264
Sun Apr 29 03:41:56 BEIST 2012
Process OS id : 1300264 alive after kill
Errors in file/oracle/product/10.2.0/admin/xxxxdb/udump/xxxxdb2_ora_110596.trc
Immediate Kill Session#: 1662, Serial#: 2
Immediate Kill Session: sess:70000038275bc80 OS pid: 1155624
Sun Apr 29 03:41:57 BEIST 2012
Process OS id : 1155624 alive after kill
Errors in file/oracle/product/10.2.0/admin/xxxxdb/udump/xxxxdb2_ora_110596.trc
Immediate Kill Session#: 1663, Serial#: 2
Immediate Kill Session: sess:700000387762ed0 OS pid: 1000484
Sun Apr 29 03:41:57 BEIST 2012
Process OS id : 1000484 alive after kill
Errors in file/oracle/product/10.2.0/admin/xxxxdb/udump/xxxxdb2_ora_110596.trc
Immediate Kill Session#: 1664, Serial#: 2
Immediate Kill Session: sess:7000003867923d8 OS pid: 1175586
Sun Apr 29 03:41:58 BEIST 2012
Process OS id : 1175586 alive after kill
Errors in file/oracle/product/10.2.0/admin/xxxxdb/udump/xxxxdb2_ora_110596.trc
Immediate Kill Session#: 1665, Serial#: 2
Immediate Kill Session: sess:7000003857a9d30 OS pid: 1296160
Sun Apr 29 03:41:58 BEIST 2012
Process OS id : 1296160 alive after kill
Errors in file/oracle/product/10.2.0/admin/xxxxdb/udump/xxxxdb2_ora_110596.trc
Immediate Kill Session#: 1666, Serial#: 3
Immediate Kill Session: sess:70000038f775130 OS pid: 1176862
Sun Apr 29 03:41:59 BEIST 2012
Process OS id : 1176862 alive after kill
Errors in file/oracle/product/10.2.0/admin/xxxxdb/udump/xxxxdb2_ora_110596.trc
Immediate Kill Session#: 1667, Serial#: 2
Immediate Kill Session: sess:700000384763938 OS pid: 1151516
Sun Apr 29 03:42:00 BEIST 2012
Process OS id : 1151516 alive after kill
Errors in file/oracle/product/10.2.0/admin/xxxxdb/udump/xxxxdb2_ora_110596.trc
Immediate Kill Session#: 1668, Serial#: 2
Immediate Kill Session: sess:700000383763638 OS pid: 693786
Sun Apr 29 03:42:01 BEIST 2012
Process OS id : 693786 alive after kill
Errors in file/oracle/product/10.2.0/admin/xxxxdb/udump/xxxxdb2_ora_110596.trc
Immediate Kill Session#: 1669, Serial#: 2
Immediate Kill Session: sess:70000038275d1f8 OS pid: 1292056
6
— 说明：故障期间，节点二上数据库的Service被OFFLINE，这一点正常。但随后CRS
将连接到节点二上的所有客户端连接都强行Kill掉了。该问题和Oracle Bug 6955040有
关。
五、分析RACGVIP
由于问题原因定位到 VIP资源异常上，而VIP切换到节点一上是正常的，
因此极有可能是由于VIP检查的时候出现异常导致CRS 将VIP OFFLINE。由于
Oracle CRS在进行VIP检测的时候是通过RACGVIP这个 SHELL脚本实现功能
的，因此我们分析和测试了RACGVIP脚本。
我们注意到其中一段脚本，如下：
#Check the status of the interface thro' pinging gateway
if[ -n "$DEFAULTGW" ]
then
_RET=1
#get base IP address of the interface
tmpIP=`$LSATTR -El ${_IF} -a netaddr | $AWK '{print $2}'`
#get RX packets numbers
_O1=`$NETSTAT -n -I $_IF | $AWK "{ if (/^$_IF/) {print \\$5;exit}}"`
x=$CHECK_TIMES
while [ $x -gt 0 ]
do
if [ -n "$tmpIP" ]
then
$PING -S $tmpIP $PING_TIMEOUT $DEFAULTGW > /dev/null 2>&1
else
$PING $PING_TIMEOUT $DEFAULTGW > /dev/null 2>&1
fi
_O2=`$NETSTAT -n -I $_IF | $AWK "{ if (/^$_IF/) {print \\$5;exit}}"`
if [ "$_O1" != "$_O2" ]
then
# RX packets numbers changed
_RET=0
break
fi
$SLEEP 1
x=`$EXPR $x - 1`
done
if [ $_RET -ne 0 ]
then
logx "checkIf: RX packets checked if=$_IF failed"
else
logx "checkIf: RX packets checked if=$_IF OK"
fi
else
logx "checkIf: Default gateway is not defined(host=$HOSTNAME)"
if [ $FAIL_WHEN_DEFAULTGW_NO_FOUND -eq 1 ]
then
_RET=1
else
_RET=0
fi
fi
— 说明：这段脚本说明，CRS在做VIP check的时候机制如下，定期向缺省网关（Default
Gateway）发包，如果发包前后检测到网卡上有包流量（output值前后不一样）则说
明检测网络正常，VIP check通过。发包的操作通过AIX 命令执行，还原所有变量后的
命令如下
— ping –S xxx.xxx.xxx.2 –c 1–w 1 xxx.xxx.xxx.254
— 参数含义如下：
-S hostname/IP addr
Uses the IP address as the source addressin outgoing ping packets.
-c Count
Specifies the number of echo requests, asindicated by the Count
variable, to be sent (and received).
-w timeout
This option works only with the -c option.It causes ping to wait
for a maximum of 'timeout' seconds for areply (after sending the
last packet).
— PING_TIMEOUT参数控制了-c 和-w的值，RACGVIP 脚本中设置如下：
# timeout of ping in number of loops
PING_TIMEOUT=" -c 1 -w 1"
— 我们检查了10.2.0.3版本下的设置，发现在10.2.0.3版本下，PING_TIMEOUT参数设置
为如下值：
# timeout of ping in number of loops
PING_TIMEOUT=" -c 1 -w 3"
— 当前PING_TIMEOUT的设置意味着如果在pingdefault gateway 的1秒内没有成功向
外发送出一个包，那么CRS会经过一次SLEEP后再次尝试ping操作，如果还是没有成
功，CRS即宣布网络异常，VIP OFFLINE。
结论
Oracle 10.2.0.5在RACGVIP脚本上的细微改变说明，Oracle认为10.2.0.5版本
下对网络性能及稳定性更高了。但是将PING_TIMEOUT 由1秒更改为3秒，会大
大增加CRS 的敏感度，使得细微的网络异常即会造成CRS 中的 VIP检测失败。
根据上述分析，我们认为节点二故障原因如下：
1、 升级到10.2.0.5后，CRS 对网络延时更加敏感
2、 在4月29 日凌晨3点故障期间，网络出现了及其短暂的延时导致VIP检测
失败，CRS 将VIP以及依赖于VIP的资源OFFLINE。
3、 CRS 在OFFLINE数据库服务的时候命中Bug6955040造成客户端连接被
全部杀光。
故障重现
我方在生产环境模拟了这一段异常情况：
步骤流程
1 打开CRS VIPdebug
2
节点二上找出VIP（xxx.xxx.xxx.4 ）使用的网络设备（en10）
以及对应的ServiceIP（xxx.xxx.xxx.2 ）
3 交换机上找出对应的端口
4 Block该端口一小段时间
5 观察CRS 和数据库日志
我方我们观察到其中 CRS 日志和数据库日志信息和故障期间完全一致，这
充分证明了前面的判断。
同时，VIP的debug 信息显示如下内容，我们可以从中清晰的看到，由于
网络问题导致发包失败后，CRS 立即将VIP置于 OFFLINE状态：
2012-05-01 20:36:22.560: [ RACG][1] [1291828][1][ora.xxxxdb0 2.vip]:Tue May 1
20:36:18 BEIST 2012 [ 1139710 ] Checkinginterface existance
Tue May 1 20:36:18 BEIST 2012 [ 1139710 ] Calling getifbyip
Tue May 1 20:36:18 BEIST 2012 [ 1139710 ] getifbyip: started for xxx.xxx.xxx.4
2012-05-01 20:36:22.560: [ RACG][1] [1291828][1][ora.xxxxdb0 2.vip]:Tue May 1
20:36:18 BEIST 2012 [ 1139710 ] getifbyip:checking if failover is happening (en10)
Tue May 1 20:36:18 BEIST 2012 [ 1139710 ] getifbyip: failover is not happening
(en10)
Tue May 1 20:36:18 BEIST 2012 [ 1139710 ] getifbyip: returning IP en10
2012-05-01 20:36:22.560: [ RACG][1] [1291828][1][ora.xxxxdb0 2.vip]:Tue May 1
20:36:18 BEIST 2012 [ 1139710 ] Completedgetifbyip en10
Tue May 1 20:36:18 BEIST 2012 [ 1139710 ] Completed with initial interface test
Tue May 1 20:36:18 BEIST 2012 [ 1139710 ] Broadcast = 130.0.255.255
2012-05-01 20:36:22.560: [ RACG][1] [1291828][1][ora.xxxxdb0 2.vip]:Tue May 1
20:36:18 BEIST 2012 [ 1139710 ] checkIf:start for if=en10
Tue May 1 20:36:18 BEIST 2012 [ 1139710 ] IsIfAlive: start for if=en10
Tue May 1 20:36:18 BEIST 2012 [ 1139710 ] defaultgw: started
2012-05-01 20:36:22.560: [ RACG][1] [1291828][1][ora.xxxxdb0 2.vip]:Tue May 1
20:36:18 BEIST 2012 [ 1139710 ]defaultgw: completed withxxx.xxx.xxx.254
Tue May 1 20:36:18 BEIST 2012 [ 1139710 ] About to execute com mand:/usr/sbin/ping
-S xxx.xxx.xxx.2 -c 1 -w 1 xxx.xxx.xxx.254
2012-05-01 20:36:22.561: [ RACG][1] [1291828][1][ora.xxxxdb0 2.vip]:Tue May 1
20:36:20 BEIST 2012 [ 1139710 ] About toexecute command: /usr/sbin/ping -S
xxx.xxx.xxx.2 -c 1 -w 1 xxx.xxx.xxx.254
Tue May 1 20:36:22 BEIST 2012 [ 1139710 ] IsIfAlive: RX packets checked if=en10
failed
2012-05-01 20:36:22.561: [ RACG][1] [1291828][1][ora.xxxxdb0 2.vip]:Tue May 1
20:36:22 BEIST 2012 [ 1139710 ] Interfaceen10 checked failed (host=xxxxdb02)
Tue May 1 20:36:22 BEIST 2012 [ 1139710 ] IsIfAlive: end for if=en10
Tue May 1 20:36:22 BEIST 2012 [ 1139710 ] checkIf: end for if=en10
2012-05-01 20:36:22.561: [ RACG][1] [1291828][1][ora.xxxxdb0 2.vip]:Tue May 1
20:36:22 BEIST 2012 [ 1139710 ] PerformingCRS_STAT testing
Tue May 1 20:36:22 BEIST 2012 [ 1139710 ] Completed CRS_STAT testing
Tue May 1 20:36:22 BEIST 2012 [ 1139710 ] Completed second gateway test
2012-05-01 20:36:22.561: [ RACG][1] [1291828][1][ora.xxxxdb0 2.vip]:Tue May 1
20:36:22 BEIST 2012 [ 1139710 ] Interfacetests
Invalid parameters, or failed to bring upVIP (host=xxxxdb02)
2012-05-01 20:36:22.561: [ RACG][1] [1291828][1][ora.xxxxdb02.vip]:
clsrcexecut: envORACLE_CONFIG_HOME=/oracle/product/10.2.0/crs_1
2012-05-01 20:36:22.561: [ RACG][1] [1291828][1][ora.xxxxdb02.vip]:
clsrcexecut: cmd =/oracle/product/10.2.0/crs_1/bin/racgeut -e _USR_ORA_DEBUG=5 54
/oracle/product/10.2.0/crs_1/bin/racgvipcheck xxxxdb02
2012-05-01 20:36:22.561: [ RACG][1] [1291828][1][ora.xxxxdb02.vip]:
clsrcexecut: rc = 1, time = 4.304s
2012-05-01 20:36:22.561: [ RACG][1] [1291828][1][ora.xxxxdb02.vip]:
clsrcaction: restyp=0 act_typ=2 stat=1
2012-05-01 20:36:22.561: [ RACG][1] [1291828][1][ora.xxxxdb02.vip]:
clsrcaction: init 0.000s
2012-05-01 20:36:22.561: [ RACG][1] [1291828][1][ora.xxxxdb0 2.vip]:
clsrcaction: action failed, 4.438s
2012-05-01 20:36:22.561: [ RACG][1] [1291828][1][ora.xxxxdb02.vip]:
clsrcaction: post 0.000s
2012-05-01 20:36:22.561: [ RACG][1] [1291828][1][ora.xxxxdb02.vip]:
clsrcaction: all 4.438s
2012-05-01 20:36:22.561: [ RACG][1] [1291828][1][ora.xxxxdb02.vip]:end for
resource = ora.xxxxdb02.vip, action =check, status = 1, time = 4.442s
2012-05-01 20:36:22.561: [ RACG][1] [1291828][1][ora.xxxxdb02.vip]:clsrccln:
exiting ora.xxxxdb02.vip refcount=1
2012-05-01 20:36:22.561: [ RACG][1] [1291828][1][ora.xxxxdb02.vip]:
clsrcprsrgter:gctx->prsrcfgref_clsrcgctx = 0
2012-05-01 20:36:22.664: [ RACG][1] [1115450][1][ora.xxxxdb02.vip]:
clsrcprsrgini:gctx->prsrcfgref_clsrcgctx = 0
2012-05-01 20:36:22.664: [ RACG][1] [1115450][1][ora.xxxxdb02.vip]:
clsrcini_ext: starting ora.xxxxdb02.viprefcount=1 global
2012-05-01 20:36:22.665: [ RACG][1] [1115450][1][ora.xxxxdb02.vip]:begin for
resource = ora.xxxxdb02.vip, action = stop
2012-05-01 20:36:22.902: [ RACG][1] [1115450][1][ora.xxxxdb02.vip]:
clsrccssgetnodename: all 0.238s
2012-05-01 20:36:22.902: [ RACG][1] [1115450][1][ora.xxxxdb02.vip]:
clsrcnodeapps: calling FAILSRVSA
2012-05-01 20:36:22.907: [ RACG][1] [1115450][1][ora.xxxxdb0 2.vip]:
clsrcrundetach: cmd =/oracle/product/10.2.0/crs_1/bin/racgmain ora.xxxxdb02.vip
rundetach 1 failsrvsa xxxxdb02, rc = 0, time = 0.005s
2012-05-01 20:36:22.908: [ RACG][1] [1115450][1][ora.xxxxdb02.vip]:
clsrcnodeapps: Posting PNWDOWN_EVENT
2012-05-01 20:36:22.908: [ RACG][1] [1115450][1][ora.xxxxdb02.vip]:
clsrccssgetnodename: all 0.000s
2012-05-01 20:36:22.908: [ RACG][1] [1115450][1][ora.xxxxdb02.vip]:
clsrccssgetnodename: all 0.000s
2012-05-01 20:36:22.908: [ RACG][1] [1115450][1][ora.xxxxdb02.vip]:
clsrcssgetrhost: using cached local hostname
2012-05-01 20:36:22.909: [ RACG][1] [1115450][1][ora.xxxxdb02.vip]:
clsrccssgetlhost: all 0.001s
2012-05-01 20:36:22.935: [ RACG][1] [889364][1][ora.xxxxdb02.vip]:
clsrcprsrgini:gctx->prsrcfgref_clsrcgctx = 0
2012-05-01 20:36:22.935: [ RACG][1] [889364][1][ora.xxxxdb02.vip]:
clsrcini_ext: starting ora.xxxxdb02.viprefcount=1 global
2012-05-01 20:36:22.935: [ RACG][1] [889364][1][ora.xxxxdb02.vip]:begin for
resource = ora.xxxxdb02.vip, action =rundetach
2012-05-01 20:36:22.964: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = RESTART_COUNT=0
2012-05-01 20:36:22.982: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = STATE=ONLINE on xxxxdb02
2012-05-01 20:36:22.982: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf =
2012-05-01 20:36:22.982: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = NAME=ora.xxxxdb.xxxxdb1.xxxxdb2.srv
2012-05-01 20:36:22.982: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = FAILURE_THRESHOLD=0
2012-05-01 20:36:22.982: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = TARGET=ONLINE
2012-05-01 20:36:22.982: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = STATE=ONLINE on xxxxdb02
2012-05-01 20:36:22.982: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf =
2012-05-01 20:36:22.982: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = RESTART_COUNT=0
2012-05-01 20:36:22.982: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = FAILURE_THRESHOLD=0
2012-05-01 20:36:22.983: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = TARGET=ONLINE
2012-05-01 20:36:22.983: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = STATE=ONLINE on xxxxdb02
2012-05-01 20:36:22.983: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = RESTART_ATTEMPTS=5
2012-05-01 20:36:22.983: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = NAME=ora.xxxxdb02.ons
2012-05-01 20:36:22.983: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = TYPE=application
2012-05-01 20:36:22.983: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = RESTART_ATTEMPTS=3
2012-05-01 20:36:22.983: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = RESTART_COUNT=0
2012-05-01 20:36:22.983: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = FAILURE_THRESHOLD=0
2012-05-01 20:36:22.983: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = TARGET=ONLINE
2012-05-01 20:36:22.983: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = STATE=ONLINE on xxxxdb02
15
2012-05-01 20:36:22.983: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf =
2012-05-01 20:36:22.983: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = NAME=ora.xxxxdb02.vip
2012-05-01 20:36:22.983: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = TYPE=application
2012-05-01 20:36:22.983: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = RESTART_ATTEMPTS=0
2012-05-01 20:36:22.983: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = RESTART_COUNT=0
2012-05-01 20:36:22.983: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = FAILURE_THRESHOLD=0
2012-05-01 20:36:22.983: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = TARGET=ONLINE
2012-05-01 20:36:22.983: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = STATE=ONLINE on xxxxdb02
2012-05-01 20:36:22.983: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf =
2012-05-01 20:36:22.983: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcqryapi:
resname = NULL, host = xxxxdb02, time =0.007s
2012-05-01 20:36:23.075: [ RACG][1] [1115450][1][ora.xxxxdb02.vip]:
clsrcpostevt: EvmEventPost 1 0.000s
2012-05-01 20:36:23.075: [ RACG][1] [1115450][1][ora.xxxxdb02.vip]:
clsrcposthaevt: forward to EVM
0.166s
2012-05-01 20:36:23.080: [ RACG][1] [1115450][1][ora.xxxxdb02.vip]:
clsrcnodeapp: prsr num_env = 0
2012-05-01 20:36:23.080: [ RACG][1] [1115450][1][ora.xxxxdb02.vip]:
clsrcnodeapp: settingORACLE_CONFIG_HOME=/oracle/product/10.2.0/crs_1
2012-05-01 20:36:23.111: [ RACG][1] [889364][1][ora.xxxxdb02.vip]:
clsrcpostevt: EvmEventPost 1 0.008s
2012-05-01 20:36:23.114: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]: clsrcstatcb:
buf = NAME=ora.xxxxdb02.vip
2012-05-01 20:36:23.114: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = TYPE=application
2012-05-01 20:36:23.114: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = RESTART_ATTEMPTS=0
2012-05-01 20:36:23.114: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = RESTART_COUNT=0
2012-05-01 20:36:23.114: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = FAILURE_THRESHOLD=0
2012-05-01 20:36:23.114: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = TARGET=ONLINE
2012-05-01 20:36:23.114: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf = STATE=ONLINE on xxxxdb02
2012-05-01 20:36:23.115: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcstatcb:
buf =
2012-05-01 20:36:23.115: [ RACG][1] [889364][1][ora.xxxxdb02 .vip]:clsrcqryapi:
resname = ora.xxxxdb02.vip, host = NULL,time = 0.004s
2012-05-01 20:36:23.284: [ RACG][1] [1115450][1][ora.xxxxdb0 2.vip]:Tue May 1
20:36:23 BEIST 2012 [ 921812 ] Checkinginterface existance
Tue May 1 20:36:23 BEIST 2012 [ 921812 ] Calling getifbyip
Tue May 1 20:36:23 BEIST 2012 [ 921812 ] getifbyip: started for xxx.xxx.xxx.4
2012-05-01 20:36:23.284: [ RACG][1] [1115450][1][ora.xxxxdb0 2.vip]:Tue May 1
20:36:23 BEIST 2012 [ 921812 ] getifbyip:checking if failover is happening ()
Tue May 1 20:36:23 BEIST 2012 [ 921812 ] getifbyip: failover i s not happening()
Tue May 1 20:36:23 BEIST 2012 [ 921812 ] Completed getifbyip
2012-05-01 20:36:23.284: [ RACG][1] [1115450][1][ora.xxxxdb0 2.vip]:Tue May 1
20:36:23 BEIST 2012 [ 921812 ] Completedwith initial interface test
2012-05-01 20:36:23.284: [ RACG][1] [1115450][1][ora.xxxxdb02.vip]:
clsrcexecut: envORACLE_CONFIG_HOME=/oracle/product/10.2.0/crs_1
17
2012-05-01 20:36:23.284: [ RACG][1] [1115450][1][ora.xxxxdb0 2.vip]:
clsrcexecut: cmd =/oracle/product/10.2.0/crs_1/bin/racgeut -e _USR_ORA_DEBUG=5 54
/oracle/product/10.2.0/crs_1/bin/racgvipstop xxxxdb02
2012-05-01 20:36:23.284: [ RACG][1] [1115450][1][ora.xxxxdb02.vip]:
clsrcexecut: rc = 0, time = 0.204s
2012-05-01 20:36:23.284: [ RACG][1] [1115450][1][ora.xxxxdb02.vip]:
clsrcposthaevt: reason = failure
2012-05-01 20:36:23.285: [ RACG][1] [1115450][1][ora.xxxxdb02.vip]:clsrccln:
exiting ora.xxxxdb02.vip refcount=1
2012-05-01 20:36:23.286: [ RACG][1] [1115450][1][ora.xxxxdb02.vip]:
clsrcprsrgter:gctx->prsrcfgref_clsrcgctx = 0
解决方案
根据分析结果，我们认为，10.2.0.5中CRS 对网络过于敏感，出现网络延时
的时候会对数据库集群产生较大影响，针对目前的情况，我们建议如下：
一、 详查网络问题，极偶然的丢包或延时在网络层面也属于常见情况。
有可能是线缆问题，也可能是交换机、服务器网卡、网络配置等
问题，需要详细检查网络情况。
二、 修改过于敏感的CRS 配置，将发包超时设置为3秒（ 10.2.0.5之前的
值）：
修改$ORA_CRS_HOME/bin/racgvip 脚本如下部分
# timeout of ping in number of loops
PING_TIMEOUT=" -c 1 -w 1"
修改成如下内容：
# timeout of ping in number of loops
PING_TIMEOUT=" -c 1 -w 3"
三、 由于Bug 6955040是VIP异常后被触发，目前优先解决VIP异常问
题，该Bug 可以忽略。