Problems doing backup in Oracle RAC
I am working with ORacle RAC, version 10G. That thing about Oracle RAC is completely new for me. There is three databases, I'm doing backups using OEM, but here is the problem. We have defined the directory /backup in both nodes. The problem that I have is when I do the backup it's done in one node, example, today I do the backup, it's done in NODE1/backup. The next time I'm going to do a new backup by any reason the aplication (OEM) is pointing to the NODE2/backup. So here is the problem, if I need to use the first backup, I can't use it, because OEM is pointing to NODE2 instead on NODE1. My question is, how can I set the node, with OEM where I want to do backup or retrieve a prevoius backup?
Thanks for your help.
Thanks a lot forn your suggestion, but I think I should give you more details about my doubt.
The following are the steps for a backup with Oracle Enterprise Manager
steps
Thru OEM
Maintenance
BACKUP/RECOVERY
Schedule Backup
Archive Logs (Whole Database, etc.)
Then here I click override current settings, by the way, the default is spaces, so I type /backup, but problem is that directory exist in both node, Node1 and Node2, I'm working with oracle 10G, RAC, in a operating system AIX 5.3.
Then I click Compressed Backup Set, and that's all what I'm doing. But the problem is, sometimes the backup is done in Node1 and other in Node2. And if I need to restore from any previous backup that was done in NODE2, and the application (OEM) is pointing to NODE1, and can not use that previous backup. So, my question is how can I control this, using OEM. I mean, How can I set the Node, to identify in which node the backup will be done, or in which node is the backup I'm going to restore.
Thanks again
Similar Messages
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Does NFS support Oracle RAC with TAF ?
Hi,
Does NFS support Oracle RAC with TAF feature. ?
If yes, please point to some valid document to prove the same.
Regards
SumitTAF has nothing to do with the underlying storage architecture and is therefore 'supported' with your choice of asm, raw devices, cluster file system and NFS. NFS is supported on some platforms. For more details, check the certify tab in metalink. Some information can also be found here
TAF will be available on any rac installation, but not all drivers support it (jdbc-thin for example)
Bjoern -
RMAN backup in ORACLE RAC database
Hi there,
We are using RMAN backup strategy for taking backups from one node(eg.node1).Database is RAC database, version 9.2.3. and OS is Solaris 5.10.
this is the configuration which we use, as follows:
Connecting to Prod.Database using catalog database.
rman catalog=rman/rman@CATDB target=sys/oracle@PRODDB(node 2).
RMAN> show all;
RMAN configuration parameters are:
CONFIGURE RETENTION POLICY TO REDUNDANCY 30;
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As the above config shows RMAN is connecting to PROD DB (node 2). But we need to take backups (datafiles and as well as archive logs) from two nodes (i.e from node 1 and as well as node 2).
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Thanks,
Balu.Duplicate thread
RMAN configuration in ORACLE RAC database
Khurram -
Hello,
I am newbie with Oracle RAC 11g.
So, I do the following steps to configure RMAN to back up the Oracle RAC:
- Create a tablespace to RMAN User;
- Create the user rman;
- Connect to catalog (the databsae RAC itself);
- Register the database;
- Create the "complete_backup" script on catalog.
So, when I enter on Enterprise Manager, I can see
the "Availability" tab and the "Recovery Catalog Settings" link.
I setup the user rman that I've created with the host RAC1.
Is this really necessary on EM? The "Backup Setting" on EM
is equals to rman (database user) catalog?
When I go to "Schedule backup", I want to use the "complete_backup" script
that I've created. What the best way to schedule this script
to run each sunday, for example?
Thank you.Hi,
To perfom a test you can create a new single database (RCVCAT) in one of the hosts that you have.
Create a database without any option with and use minimum of memory (don't use memory_target) set pga (50M) and sga(400M).
Create a user RMAN; with Grant connect,resource,recovery_catalog_owner.
Tablespace RCVCAT;
With RMAN connect on RCVCAT and create your catalog.
Levi Pereira -
Rman cold backup for oracle rac
Hi experts;
I want to create a cold backup for an oracle 10g rac DB.
It has 2 nodes, it's not in archive log, this will be the next step.
But now, I want to backup before to proceed.
My doubts are:
I need to shutdown the both nodes?
If yes:
I need to startup nomount just in one node?
If there any document with this specifics steps?
Thanks for your help.
AlCold backups are done with the DB completely shut down.
For RAC the data files are used by all nodes in the cluster.
You need to shut down all instances in the RAC.
Then use your OS utilities or RMAN to do the backup.
Here is an 'Ask Tom' topic that discusses this:
http://asktom.oracle.com/pls/apex/f?p=100:11:0::::P11_QUESTION_ID:851658400346232494 -
Configuring rman backup for oracle on rac cluster
Hi GURUS
We are buying installation oracle rac on a two node server. We do backup our db using rman and TSM .
Does anyone have any guidance on using TSM scheduled TDP backups with
Oracle RAC multi-node?
More to that, is it possible to have multiple archive log destination?
Any advice would be appreciated.
DavidWhile you can have archives going to different destinations, on different nodes, it is not advisable because if these destinations are not reachable in case of a node/system failure, you have no access to these archive logs.
Actually for easy accesibility it would be better to place the archive logs of all instnaces on shared storage. If you are using ASM and using a FRA disk group, you may want to have your archives go into this location.
NFS mounting filesystems could be slower and may have certain perforamance implications. -
The Backup Process was killed by system when I Backup Oracle RAC
HI all：
I use RMAN and MML to backup my Oracle Rac. When it backup 60GB (it total 300GB),the oracle backup process was killed by the system.
the follow is the system log from syslog.log file:
Jan 5 10:54:57 hpux01 vmunix: Pid 24142 was killed due to failure in writing the signal context - possible stack overflow.
And the follow is the trc log from Oracle:
/ora_backup/szyy/orcl_ora_24142.trc
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - 64bit Production
With the Partitioning, Real Application Clusters, OLAP and Data Mining options
ORACLE_HOME = /u01/app/oracle/product/10.2.0/racdb
System name: HP-UX
Node name: hpux01
Release: B.11.31
Version: U
Machine: ia64
Instance name: orcl
Redo thread mounted by this instance: 1
Oracle process number: 131
Unix process pid: 24142, image: oracleorcl@hpux01
*** 2012-01-05 09:55:32.576
*** ACTION NAME:(0000067 STARTED16) 2012-01-05 09:55:32.567
*** MODULE NAME:(backup incr datafile) 2012-01-05 09:55:32.567
*** SERVICE NAME:(kmyb) 2012-01-05 09:55:32.567
*** SESSION ID:(4044.1365) 2012-01-05 09:55:32.567
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 09:58:59.396
*** ACTION NAME:(0000071 STARTED16) 2012-01-05 09:58:59.396
WARNING:Oracle process running out of OS kernel I/O resources
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 09:59:28.666
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:00:27.749
*** ACTION NAME:(0000073 STARTED16) 2012-01-05 10:00:27.749
WARNING:Oracle process running out of OS kernel I/O resources
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:04:40.215
*** ACTION NAME:(0000077 STARTED16) 2012-01-05 10:04:40.215
WARNING:Oracle process running out of OS kernel I/O resources
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:05:20.131
WARNING:Oracle process running out of OS kernel I/O resources
WARNING:Oracle process running out of OS kernel I/O resources
WARNING:Oracle process running out of OS kernel I/O resources
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:06:49.812
*** ACTION NAME:(0000079 STARTED16) 2012-01-05 10:06:49.812
WARNING:Oracle process running out of OS kernel I/O resources
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:07:23.498
WARNING:Oracle process running out of OS kernel I/O resources
WARNING:Oracle process running out of OS kernel I/O resources
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:09:06.092
*** ACTION NAME:(0000081 STARTED16) 2012-01-05 10:09:06.091
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:11:26.153
*** ACTION NAME:(0000083 STARTED16) 2012-01-05 10:11:26.153
WARNING:Oracle process running out of OS kernel I/O resources
WARNING:Oracle process running out of OS kernel I/O resources
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:12:50.144
*** ACTION NAME:(0000085 STARTED16) 2012-01-05 10:12:50.144
WARNING:Oracle process running out of OS kernel I/O resources
WARNING:Oracle process running out of OS kernel I/O resources
WARNING:Oracle process running out of OS kernel I/O resources
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:15:09.731
*** ACTION NAME:(0000087 STARTED16) 2012-01-05 10:15:09.731
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:17:47.068
*** ACTION NAME:(0000089 STARTED16) 2012-01-05 10:17:47.068
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:18:29.698
*** ACTION NAME:(0000091 STARTED16) 2012-01-05 10:18:29.698
WARNING:Oracle process running out of OS kernel I/O resources
WARNING:Oracle process running out of OS kernel I/O resources
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:20:32.236
*** ACTION NAME:(0000093 STARTED16) 2012-01-05 10:20:32.236
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:20:57.822
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:23:11.251
*** ACTION NAME:(0000095 STARTED16) 2012-01-05 10:23:11.251
WARNING:Oracle process running out of OS kernel I/O resources
WARNING:Oracle process running out of OS kernel I/O resources
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:25:21.496
*** ACTION NAME:(0000097 STARTED16) 2012-01-05 10:25:21.496
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:26:40.743
*** ACTION NAME:(0000099 STARTED16) 2012-01-05 10:26:40.743
WARNING:Oracle process running out of OS kernel I/O resources
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:26:52.331
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:27:11.566
WARNING:Oracle process running out of OS kernel I/O resources
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:27:24.826
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:31:00.760
*** ACTION NAME:(0000103 STARTED16) 2012-01-05 10:31:00.759
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:31:25.595
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:31:45.456
WARNING:Oracle process running out of OS kernel I/O resources
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:33:58.612
*** ACTION NAME:(0000105 STARTED16) 2012-01-05 10:33:58.612
WARNING:Oracle process running out of OS kernel I/O resources
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:35:13.323
*** ACTION NAME:(0000107 STARTED16) 2012-01-05 10:35:13.323
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:37:59.764
*** ACTION NAME:(0000109 STARTED16) 2012-01-05 10:37:59.764
WARNING:Oracle process running out of OS kernel I/O resources
WARNING:Oracle process running out of OS kernel I/O resources
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:42:27.364
*** ACTION NAME:(0000113 STARTED16) 2012-01-05 10:42:27.364
WARNING:Oracle process running out of OS kernel I/O resources
WARNING:Oracle process running out of OS kernel I/O resources
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:46:54.632
*** ACTION NAME:(0000117 STARTED16) 2012-01-05 10:46:54.632
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:47:52.295
*** ACTION NAME:(0000119 STARTED16) 2012-01-05 10:47:52.295
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:52:31.041
*** ACTION NAME:(0000123 STARTED16) 2012-01-05 10:52:31.041
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:54:20.123
*** ACTION NAME:(0000125 STARTED16) 2012-01-05 10:54:20.123
WARNING:Oracle process running out of OS kernel I/O resources
*** 2012-01-05 10:54:41.410
WARNING:Oracle process running out of OS kernel I/O resources
WARNING:Oracle process running out of OS kernel I/O resourcesThis was a bug in 10.2.0.3. It is fixed in 10.2.0.5. See MOS note 748607.1
-
Oracle Rac as part of OSDB Migration
Hello Gurus,
We are going ahead with OSDB Migration from HP-UX to Linux. Here as HA solution, we plan to implement Oracle RAC on the target systems. Where as the current environment is non RAC.
As part of OSDB migration we are not confident in doing it on Oracle RAC. Documentation for Oracle RAC on SAP explains first go for single instance installation on oracle cluster filesystem and implement RAC as a high availability solution with SAP Enqueue Replication service. Then do the backup and restore process from non RAC system to RAC.
But in our scenario we should go for EXPORT/ IMPORT process.
Please guide us in going ahead with the right approach.
Surendra> As part of OSDB migration we are not confident in doing it on Oracle RAC. Documentation for Oracle RAC on SAP explains first go for single instance installation on oracle cluster filesystem and implement RAC as a high availability solution with SAP Enqueue Replication service. Then do the backup and restore process from non RAC system to RAC.
>
> But in our scenario we should go for EXPORT/ IMPORT process.
This is not an antagonism, you can do a single instance installation by doing the import. Basically an "import" is a new installation with the export you've done before.
Markus -
Hi,
Does CIAC support Oracle RAC clusters? I'd like to put a bit of resilience on the Oracle database backend and so would like to setup an Oracle RAC. If I did would this invalidate any support if there was an issue with connectiviity to the database.
Regards,
Mohammed RakhadaCisco Advanced Services have a service to install using RAC One Node, and PO supports RAC as well.
See this doc for details
https://supportforums.cisco.com/docs/DOC-28219 -
Getting error when try to backup oracle rac to another location
Hi there,
I am attempting to backup database to another location from a Oracle RAC database version 11gr2. Here is my script:
#!/bin/ksh
export ORACLE_SID=vvsms1
ORACLE_BASE=/u01/app/oracle; export ORACLE_BASE
ORACLE_HOME=$ORACLE_BASE/product/11.2.0/dbhome_1; export ORACLE_HOME
BASE_PATH=/usr/sbin:$PATH; export BASE_PATH
PATH=$ORACLE_HOME/bin:$BASE_PATH; export PATH
/u01/app/oracle/product/11.2.0/dbhome_1/bin/rman target sys/viviet@vvsms log /home/oracle/log_rman/vvsms.log append <<EOF
RUN {
CROSSCHECK BACKUP;
CROSSCHECK ARCHIVELOG ALL;
ALLOCATE CHANNEL CHANNEL1 TYPE DISK FORMAT '/home/oracle/backup/vvsms/backup_%U';
BACKUP INCREMENTAL LEVEL 0 TAG 'incr_vvsms' DATABASE;
BACKUP ARCHIVELOG ALL;
DELETE OBSOLETE;
RELEASE CHANNEL CHANNEL1;
EXIT;
EOF
I write it into a .sh file and set crontab to run it. But when it run i get the error like these:
Starting backup at 22-OCT-12
channel CHANNEL1: starting incremental level 0 datafile backup set
channel CHANNEL1: specifying datafile(s) in backup set
input datafile file number=00002 name=+DISK2/vvsms/datafile/sysaux.289.794242439
input datafile file number=00006 name=+DISK2/vvsms/datafile/ts_service.dbf
input datafile file number=00007 name=+DISK2/vvsms/datafile/ts_viviet.dbf
input datafile file number=00008 name=+DISK2/vvsms/datafile/viviet.dbf
input datafile file number=00009 name=+DISK2/vvsms/datafile/ts_vivietct_primary.dbf
input datafile file number=00003 name=+DISK2/vvsms/datafile/undotbs1.290.794242445
input datafile file number=00001 name=+DISK2/vvsms/datafile/system.288.794242429
input datafile file number=00004 name=+DISK2/vvsms/datafile/undotbs2.292.794242453
input datafile file number=00005 name=+DISK2/vvsms/datafile/users.293.794242455
channel CHANNEL1: starting piece 1 at 22-OCT-12
released channel: CHANNEL1
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of backup command on CHANNEL1 channel at 10/22/2012 01:50:16
ORA-19504: failed to create file "/home/oracle/backup/vvsms/backup_2anobqu5_1_1"
ORA-27040: file create error, unable to create file
Linux-x86_64 Error: 2: No such file or directory
I don't know what i'm wrong? The location is correct ("/home/oracle/backup/vvsms/).
Please suggest me some things about it. What do i need to do?
Thanks in advance!
P/s: Sorry for my bad English./u01/app/oracle/product/11.2.0/dbhome_1/bin/rman target sys/viviet@vvsms log /home/oracle/log_rman/vvsms.log appendThis line can be your problem.
As this database is a RAC and your are using a service with load balance "vvsms" and "/home/oracle/backup/vvsms" is not a shared location. RMAN is starting a session on Other node where "/home/oracle/backup/vvsms" does not exists.
Try change it :
/u01/app/oracle/product/11.2.0/dbhome_1/bin/rman target sys/viviet@vvsms log /home/oracle/log_rman/vvsms.log appendTo this (using Easy Connect Method):
/u01/app/oracle/product/11.2.0/dbhome_1/bin/rman target sys/viviet@localhost:1521/VVSMS log /home/oracle/log_rman/vvsms.log appendWhere:
localhost: your local node
VVSMS : is the service of database
Also check if "/u01/app/oracle/product/11.2.0/dbhome_1/network/admin/sqlnet.ora" have configured the line "NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)"
P.S : When RMAN start a session it show where is logged, check on logs what instance RMAN was logged.
HTH,
Levi Pereira -
Oracle RAC and Oracle Secure Backup Express
I am building a new RAC environment - 7-Nodes on Linux.
We are very interested in reviewing Oracle Secure Backup, possible Oracle Secure Backup Express.
My understanding about Oracle Secur eBackup Express is it is licensed "free" as long as you are working with a single tape drive.
Does anyone know - does this apply to RAC as well?
ThanksPlease refer to the OSB licensing document for
specific differences between OSB-XE and OSB:
http://download-west.oracle.com/docs/cd/B32520_01/doc/
license.101/b25528/toc.htm
In general, we recommend you backup each RAC node to
insure all local files are protected which would mean
the OSB-XE edition would not be recommended since
OSB-XE is backup of one server.Thank you - I will review this.
.. and your White Papers regarding performance were just what I was looking for. -
Problem when I extend an oracle rac 10g on new node
Hi everyone
I need to extend an oracle RAC but i have problems when I add a new node. My actual enviroment is:
1) Oracle Grid Infraestructure 11gR2 - 11.2.0.3 (Upgraded from Clusterware 10gR2 + ASM 10gR2)
2) Oracle Rac Database - 10.2.0.5
(all on one only node)
The first problem was when I executed the script "root.sh" on the new node because this script called the old Clusterware home (/oracle/product/10.2.0/crshome). I edited the file and I changed this path for /oracle/gridbase/product/11.2.0/gridhome (current home for GI). Finally, I execute the script.
Now, I tried to extend the rac through of DBCA, but when, I choose the new node and I clic on "next" button then appears the following error:
"The nodes "[rstatbdbpm02]" are not part of the cluster. Make sure clusterware is active on these nodes before proceeding"
However, when I execute the "crsctl" command to view the status of cluster the result is correct:
[oracle@rstatbdbpm01] /home/oracle > crsctl status res -t
NAME TARGET STATE SERVER STATE_DETAILS
Local Resources
ora.DATA.dg
ONLINE ONLINE rstatbdbpm01
ONLINE ONLINE rstatbdbpm02
ora.LISTENER.lsnr
ONLINE ONLINE rstatbdbpm01
ONLINE ONLINE rstatbdbpm02
ora.asm
ONLINE ONLINE rstatbdbpm01 Started
ONLINE ONLINE rstatbdbpm02 Started
ora.gsd
OFFLINE OFFLINE rstatbdbpm01
OFFLINE OFFLINE rstatbdbpm02
ora.net1.network
ONLINE ONLINE rstatbdbpm01
ONLINE ONLINE rstatbdbpm02
ora.ons
ONLINE ONLINE rstatbdbpm01
ONLINE ONLINE rstatbdbpm02
ora.registry.acfs
ONLINE ONLINE rstatbdbpm01
ONLINE ONLINE rstatbdbpm02
Cluster Resources
ora.BDBPM.BDBPM1.inst
1 ONLINE ONLINE rstatbdbpm01
ora.BDBPM.BPMVEH.BDBPM1.srv
1 ONLINE ONLINE rstatbdbpm01
ora.BDBPM.BPMVEH.cs
1 ONLINE ONLINE rstatbdbpm01
ora.BDBPM.db
1 ONLINE ONLINE rstatbdbpm01
ora.LISTENER_SCAN1.lsnr
1 ONLINE ONLINE rstatbdbpm02
ora.LISTENER_SCAN2.lsnr
1 ONLINE ONLINE rstatbdbpm02
ora.LISTENER_SCAN3.lsnr
1 ONLINE ONLINE rstatbdbpm01
ora.cvu
1 ONLINE ONLINE rstatbdbpm01
ora.oc4j
1 ONLINE ONLINE rstatbdbpm01
ora.rstatbdbpm01.vip
1 ONLINE ONLINE rstatbdbpm01
ora.rstatbdbpm02.vip
1 ONLINE ONLINE rstatbdbpm02
ora.scan1.vip
1 ONLINE ONLINE rstatbdbpm02
ora.scan2.vip
1 ONLINE ONLINE rstatbdbpm02
ora.scan3.vip
1 ONLINE ONLINE rstatbdbpm01
[oracle@rstatbdbpm01] /home/oracle >
Please, Any idea with that problem?
Thanks,
LuisHi,
Please check dbca trace logs for further checks, it will give an idea what command is being run to check status of cluster.
Generally first checks should be on inventory for rdbms home, grid home and making sure no ORACLE related parameter is set in environment.
Regards,
Sharma -
Oracle RAC 11g R1 Release Connection Failover Problem
Hi All,
In our Architecture we are using Oracle RAC 11g R1. Below is the JDBC URL :
JDBCURL = jdbc:oracle:thin:@(DESCRIPTION =(ADDRESS = (PROTOCOL = TCP)(HOST = Host1-vip)(PORT = 1521))(ADDRESS = (PROTOCOL = TCP)(HOST = Host2-vi
p)(PORT = 1521))(LOAD_BALANCE = ON)(FAILOVER=ON)(CONNECT_DATA =(SERVER = DEDICATED)(SERVICE_NAME = <Service_name>)))
We are using two node RAC. The problem is whenever we are rebooting a Node and rejoin the cluster, Application Servers are not able to recognize that.
Suppose we have node1 and node2, I will take down node1 (freeze the cluster) and then reboot node1 and bring it back up( and join the cluster). At this point, My application servers are not able to recognize that some new DBserver(node1) had joined the cluster until I restart my application servers.
Please Provide me a solution for this. Thanks alot to everyone in advance.
Edited by: 877010 on Aug 4, 2011 2:00 PM
Edited by: 877010 on Aug 8, 2011 10:19 AMPlease try using this
JDBCURL = jdbc:oracle:thin:@(DESCRIPTION =(ADDRESS = (PROTOCOL = TCP)(HOST = Host1-vip)(PORT = 1521))(ADDRESS = (PROTOCOL = TCP)(HOST = Host2-vi
p)(PORT = 1521))(LOAD_BALANCE = YES)(FAILOVER=YES)(CONNECT_DATA =(SERVER = DEDICATED)(SERVICE_NAME = <Service_name>))) -
Load Balance Problem in Oracle RAC 10.2.0.4 (two nodes with CRS)
Hi all,
I have an Oracle RAC 10.2.0.4 with two nodes and I'm having problems with sessions load balance.
The problem is that all connections are going to the node which is enabled as 'master' in RAC, the node who has located .db resource in CRS.
If .db resource is located in node1 all connections are made in node1. In the same way, all connections are made in node2 when .db resource from CRS stack is located in node2.
The connections are made by a pool in Tomcat 6 using RAC service for made the connections.
Any idea?
Thanks in advance.
Here is an example of my net configuration:
listener.ora in node1:
LISTENER_RAC_NODE1 =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = node1_vip)(PORT = 1525)(IP = FIRST))
(ADDRESS = (PROTOCOL = TCP)(HOST = node1)(PORT = 1525)(IP = FIRST))
tnsnames in node1:
LISTENERS_RAC =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = node1_vip)(PORT = 1525))
(ADDRESS = (PROTOCOL = TCP)(HOST = node2_vip)(PORT = 1525))
NODE1 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = node1_vip)(PORT = 1525))
(ADDRESS = (PROTOCOL = TCP)(HOST = node1)(PORT = 1525))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = rac)
(INSTANCE_NAME = rac1)
RAC =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = node1_vip)(PORT = 1525))
(ADDRESS = (PROTOCOL = TCP)(HOST = node2_vip)(PORT = 1525))
(LOAD_BALANCE = yes)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = rac)
********************************************************It is my fault.
It was the connection service. I had one one with preferred option and one without it. Now is working well. -
Sun Fire V490 x 2 servers with Oracle RAC facing Split brain problem
Hi all,
I have Sun Fire V490 x 2 servers with Oracle RAC and they faced a Split brain problem. One of the node's database instance has gone down, The DBA claims it is due to network problem, but as such the networks are OK. We use the on board CE1 interface for Cluster interconnect and CE0 as the public interface.
Did anybody face this kind of a problem? Could this be a hardware/OS patch problem?
I had kept a continuous ping for 24 hours after this happened last time and the output shows no packet loss
Many thanks in advance.
Ushas SymonIn order to diagnose this properly, you'll need to provide too much detail and far too many log files for a generic discussion forum to handle.
Use your service contract and open a support case.
Because a cluster environment is involved you'll likely end up talking to the cluster support staff.
They can analyze hardware and software errors as well as review whether you configured the systems in a supportable fashion.
Be prepared to make a direct connection to each system and gather data using such as by using the Explorer tool. The technical support staff will tell you what they will actually need.
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