Oracle归档日志所在目录时间不对&&Oracle集群日志时间显示错误

Oracle归档日志所在目录时间不对&&Oracle集群日志时间显示错误

前言

这个问题在18年的时候遇到了，基本不注意并且集群或者数据库运行正常是很难注意到的。

忘记当时怎么发现的了，最近拿出来重现一下问题。

具体描述一下问题：

比如当前时间是2020年07月03日0点，数据库对redo log发起归档。

在OMF下，归档会按照日期进行分类归档。

但是发起归档之后，新的归档文件会放在的2020_07_02的目录中。

另外，db和asm和集群的警告日志的时间也和操作系统的date时间不一致。

现象

版本：11.2.0.4.0

在我的测试环境中，关闭所有节点的集群之后，更改时间：

[root@rac1 ~]# date -s "2020-07-03 00:00:00"Fri Jul3 00:00:00 CST 2020

然后，启动所有节点的集群，可以依次观察

集群的警告日志，grid用户下，$ORACLE_HOME/log/rac1/alertrac1.log

2020-07-02 09:00:26.667:

[ohasd(24600)]CRS-2112:The OLR service started on node rac1.2020-07-02 09:00:26.675:

[ohasd(24600)]CRS-1301:Oracle High Availability Service started on node rac1.2020-07-02 09:00:26.676:

[ohasd(24600)]CRS-8017:location: /etc/oracle/lastgasp has 2 reboot advisory log files, 0 were announced and 0errors occurred2020-07-02 09:00:30.080:

[/u01/app/11.2.0/grid/bin/orarootagent.bin(24643)]CRS-2302:Cannot get GPnP profile. Error CLSGPNP_NO_DAEMON (GPNPD daemon is not running).2020-07-02 09:00:34.563:

[gpnpd(24737)]CRS-2328:GPNPD started on node rac1.2020-07-02 09:00:36.992:

[cssd(24806)]CRS-1713:CSSD daemon is started inclustered mode2020-07-02 09:00:38.798:

[ohasd(24600)]CRS-2767:Resource state recovery not attempted for 'ora.diskmon'as its target state is OFFLINE2020-07-02 09:01:01.319:

[cssd(24806)]CRS-1707:Lease acquisition for node rac1 number 1completed2020-07-02 09:01:02.612:

[cssd(24806)]CRS-1605:CSSD voting file is online: /dev/mapper/asm-ocr02; details in /u01/app/11.2.0/grid/log/rac1/cssd/ocssd.log.2020-07-02 09:01:02.620:

[cssd(24806)]CRS-1605:CSSD voting file is online: /dev/mapper/asm-ocr03; details in /u01/app/11.2.0/grid/log/rac1/cssd/ocssd.log.2020-07-02 09:01:02.623:

[cssd(24806)]CRS-1605:CSSD voting file is online: /dev/mapper/asm-ocr01; details in /u01/app/11.2.0/grid/log/rac1/cssd/ocssd.log.2020-07-02 09:01:15.917:

[cssd(24806)]CRS-1601:CSSD Reconfiguration complete. Active nodes are rac1 rac2 .2020-07-02 09:01:18.061:

[ctssd(25418)]CRS-2403:The Cluster Time Synchronization Service on host rac1 is inobserver mode.2020-07-02 09:01:18.421:

[ctssd(25418)]CRS-2407:The new Cluster Time Synchronization Service reference node is host rac1.2020-07-02 09:01:18.422:

[ctssd(25418)]CRS-2401:The Cluster Time Synchronization Service started on host rac1.2020-07-02 09:01:20.023:

[ohasd(24600)]CRS-2767:Resource state recovery not attempted for 'ora.diskmon'as its target state is OFFLINE

[client(25475)]CRS-10001:02-Jul-20 09:01 ACFS-9391: Checking for existing ADVM/ACFS installation.

[client(25480)]CRS-10001:02-Jul-20 09:01 ACFS-9392: Validating ADVM/ACFS installation files foroperating system.

[client(25482)]CRS-10001:02-Jul-20 09:01 ACFS-9393: Verifying ASM Administrator setup.

[client(25485)]CRS-10001:02-Jul-20 09:01 ACFS-9308: Loading installed ADVM/ACFS drivers.

[client(25488)]CRS-10001:02-Jul-20 09:01 ACFS-9154: Loading 'oracleoks.ko'driver.

[client(25521)]CRS-10001:02-Jul-20 09:01 ACFS-9154: Loading 'oracleadvm.ko'driver.

[client(25548)]CRS-10001:02-Jul-20 09:01 ACFS-9154: Loading 'oracleacfs.ko' driver.

........

ASM实例警告日志，

Thu Jul 02 09:01:26 2020NOTE: No asm libraries foundinthe system

NOTE: No asm libraries foundinthe system

MEMORY_TARGET defaulting to1128267776.* instance_number obtained from CSS = 1, checking for the existence of node 0...* node 0 does not exist. instance_number = 1Starting ORACLE instance (normal)

WARNING: You are trying to use the MEMORY_TARGET feature. This feature requires the/dev/shm file system to be mounted for at least 1140850688 bytes. /dev/shm is either not mounted or is mounted with available space less than this size. Please fix this so that MEMORY_TARGET can work as expected. Current available is 976789504 and used is 73728 bytes. Ensure that the mount point is /dev/shm forthis directory.

LICENSE_MAX_SESSION= 0LICENSE_SESSIONS_WARNING= 0Initial number of CPU is4Number of processor coresin the system is 4Number of processor socketsin the system is 2Private Interface'eth1:1' configured from GPnP foruse as a private interconnect.

[name='eth1:1', type=1, ip=169.254.146.181, mac=00-0c-29-60-50-8b, net=169.254.0.0/16, mask=255.255.0.0, use=haip:cluster_interconnect/62]

Public Interface'eth0' configured from GPnP foruse as a public interface.

[name='eth0', type=1, ip=192.168.180.100, mac=00-0c-29-60-50-81, net=192.168.180.0/24, mask=255.255.255.0, use=public/1]

Picked latch-free SCN scheme 3Using LOG_ARCHIVE_DEST_1 parameter default value as/u01/app/11.2.0/grid/dbs/arch

Autotune of undo retention is turned on.

LICENSE_MAX_USERS= 0SYS auditing is disabled

NOTE: Volume support enabled

Starting up:

Oracle Database 11g Enterprise Edition Release11.2.0.4.0 -64bit Production

With the Real Application Clusters and Automatic Storage Management options.

ORACLE_HOME= /u01/app/11.2.0/grid

System name: Linux

Node name: rac1.example.com

Release:2.6.32-573.el6.x86_64

Version: #1 SMP Wed Jul 1 18:23:37 EDT 2015Machine: x86_64

VM name: VMWare Version:6Using parameter settingsin server-side spfile +OCR/rac-cluster/asmparameterfile/registry.253.1034884609

DB的警告日志，

Thu Jul 02 09:02:47 2020Adjusting the default value of parameter parallel_max_servers

from160 to 120 due to the value of parameter processes (150)

Starting ORACLE instance (normal)

LICENSE_MAX_SESSION= 0LICENSE_SESSIONS_WARNING= 0Initial number of CPU is4Number of processor coresin the system is 4Number of processor socketsin the system is 2Private Interface'eth1:1' configured from GPnP foruse as a private interconnect.

[name='eth1:1', type=1, ip=169.254.146.181, mac=00-0c-29-60-50-8b, net=169.254.0.0/16, mask=255.255.0.0, use=haip:cluster_interconnect/62]

Public Interface'eth0' configured from GPnP foruse as a public interface.

[name='eth0', type=1, ip=192.168.180.100, mac=00-0c-29-60-50-81, net=192.168.180.0/24, mask=255.255.255.0, use=public/1]

Public Interface'eth0:2' configured from GPnP foruse as a public interface.

[name='eth0:2', type=1, ip=192.168.180.111, mac=00-0c-29-60-50-81, net=192.168.180.0/24, mask=255.255.255.0, use=public/1]

Picked latch-free SCN scheme 3Autotune of undo retention is turned on.

LICENSE_MAX_USERS= 0SYS auditing is disabled

Starting up:

Oracle Database 11g Enterprise Edition Release11.2.0.4.0 -64bit Production

With the Partitioning, Real Application Clusters, OLAP, Data Mining

and Real Application Testing options.

ORACLE_HOME= /u01/app/oracle/product/11.2.0/db_1

System name: Linux

Node name: rac1.example.com

Release:2.6.32-573.el6.x86_64

可以看到，日志开头全都是2020年07月02日的9点初。

我们再看看归档的情况，

在此之前，先删除之前的所有归档便于观察。

[oracle@rac2 ~]$ rman target /Recovery Manager: Release11.2.0.4.0 - Production on Fri Jul 3 00:20:01 2020Copyright (c)1982, 2011, Oracle and/or its affiliates. Allrights reserved.

connectedto target database: ZKM (DBID=4210149549)

RMAN> delete force noprompt archivelog all;

using targetdatabase control file instead ofrecovery catalog

allocated channel: ORA_DISK_1

channel ORA_DISK_1: SID=200 instance=zkm2 device type=DISKListof Archived Log Copies for database withdb_unique_name ZKM=====================================================================

KeyThrd Seq S Low Time------- ---- ------- - ---------

91 1 56 A 02-JUL-20Name:+ARCH/zkm/archivelog/2020_07_03/thread_1_seq_56.303.1044695873

92 2 21 A 02-JUL-20Name:+ARCH/zkm/archivelog/2020_07_02/thread_2_seq_21.299.1044695875deleted archivedlogarchivedlog file name=+ARCH/zkm/archivelog/2020_07_03/thread_1_seq_56.303.1044695873 RECID=91 STAMP=1044749873deleted archivedlogarchivedlog file name=+ARCH/zkm/archivelog/2020_07_02/thread_2_seq_21.299.1044695875 RECID=92 STAMP=1044695874Deleted2 objects

其中一个节点发出命令归档redo log，

SYS@zkm1> alter session set nls_date_format='yyyy-mm-dd hh24:mi:ss';

Session altered.

SYS@zkm1>SYS@zkm1> select sysdate fromdual;

SYSDATE------------------------

2020-07-03 00:20:27SYS@zkm1> alter system archive log current;

System altered.

观察警告日志，显示的时间是“Thu Jul 02 09:20:32 2020”。

Thu Jul 02 09:20:32 2020Thread1 advanced to log sequence 58(LGWR switch)Current log# 2 seq# 58 mem# 0: +DATA/zkm/onlinelog/group_2.258.1034889845

Current log# 2 seq# 58 mem# 1: +ARCH/zkm/onlinelog/group_2.258.1034889845Thu Jul02 09:20:32 2020ArchivedLog entry 93 added for thread 1 sequence 57 ID 0xfaf1eead dest 1:

进去ASM磁盘查看文件情况，

ASMCMD> ls -l

Type Redund Striped Time Sys Name

Y 2020_07_02/ASMCMD> ls -l *Type Redund Striped Time Sys Name

ARCHIVELOG UNPROT COARSE JUL02 09:00:00 Y thread_1_seq_57.299.1044696033ARCHIVELOG UNPROT COARSE JUL02 09:00:00 Y thread_2_seq_22.303.1044696033ASMCMD>pwd+arch/zkm/ARCHIVELOG

至此，问题完全重现成功。

原因

不知道各位发现没有，实际上最开始启动集群(crsctl start crs)那一瞬间(大概是2020-07-03 00:00:00多，刚改完时间不到1分钟)，

集群的警告日志最开始出现的时间为“2020-07-02 09:00:26.667:”，基本相差15小时。

因此很容易也可以猜出，是由于时区的原因。

系统的时区为：

[grid@rac1 ~]$ cat /etc/sysconfig/clock

# Thetime zone of the system is defined by the contents of /etc/localtime.

# Thisfile is only for evaluation by system-config-date, donot rely on its

# contents elsewhere.

ZONE="Asia/Shanghai"

那么，集群应该也有自己的配置文件对应的时区，也就是集群不依赖OS的时区(-_-||)。

mos可以找到这么一篇文章：How To Change Timezone for Grid Infrastructure (Doc ID 1209444.1)

因此可以发现Grid Infrastructure的时区配置文件位置在$GRID_HOME/crs/install/s_crsconfig__env.txt。

所以，现象的模拟其实，就是我把该文件的时区改成如下了：

[grid@rac1 ~]$ cd $ORACLE_HOME/crs/install[grid@rac1install]$ lscmdllroot.sh crsconfig_lib.pm crsdelete.pm inittab installRemove.excl oracle-ohasd.conf paramfile.crs rootcrs.pl s_crsconfig_defs s_crsconfig_rac1_env.txt.bak

crsconfig_addparams.sbs crsconfig_params crspatch.pminstall.excl onsconfig oracle-ohasd.service ParentDirPerm_rac1.txt roothas.pl s_crsconfig_lib.pm tfa_setup.shcrsconfig_fileperms.excl crsconfig_params.sbs hasdconfig.plinstall.incl oraacfs.pm oracss.pm preupdate.sh rootofs.shs_crsconfig_rac1_env.txt

[grid@rac1install]$ cats_crsconfig_rac1_env.txt

### Thisfile can be used to modify the NLS_LANG environment variable, which determines the charset to be used formessages.

### For example, a new charset can be configured by setting NLS_LANG=JAPANESE_JAPAN.UTF8

### Do not modify thisfileexcept to change NLS_LANG, or under the direction of Oracle Support Services

TZ=US/Pacific

NLS_LANG=AMERICAN_AMERICA.AL32UTF8

TNS_ADMIN=ORACLE_BASE=

网上找找看是不是刚好和上海时间相差15个小时。

https://time.is/PT

得证！！！