Replace server in 2 nodes RAC
Hello!
I have question about replacing server in 2 nodes cluster (11r2 standard edition + linux)
If one node (node 1) fails (hardware issue), can I get local disk (on local disks i have operating system - OEL6 and binaries of oracle) and put them into new phisical server (but hardware identical to failed one).
After this operation, I have to add this node or this "new node" will be recognized as old node 1?
If this node wiil be recognized as "old" node 1, this operation is recommended by oracle?
Another question:
What would happen if new serwer has diffrent hardware?(another processor, mainbord)
Of coure my question is about oracle clusterware, not OEL.
Hi,
You should use delete node and node procedure for replacing nodes in cluster. Details can be found from Oracle Clusterware deployment and admin guide.
Generally adding node with different capacity is supported as long as CPU architecture, network names remain the same as existing node in cluster.
Regards,
Sharma
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http://sve.to/2011/09/29/exhaust-of-windows-2008-heap-memory-with-oracle-database-11-2-0-2/
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Windows: CLUVFY Fails with TCP Check PRVF-7617 Due to Case of Node Names [ID 1286394.1]
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Steve -
Multiple databases/instances on 4-node RAC Cluster including Physical Stand
OS: Windows 2003 Server R2 X64
DB: 10.2.0.4
Virtualization: NONE
Node Configuration: x64 architecture - 4-Socket Quad-Core (16 CPUs)
Node Memory: 128GB RAM
We are planning the following on the above-mentioned 4-node RAC cluster:
Node 1: DB1 with instanceDB11 (Active-Active: Load-balancing & Failover)
Node 2: DB1 with instanceDB12 (Active-Active: Load-balancing & Failover)
Node 3: DB1 with instanceDB13 (Active-Passive: Failover only) + DB2 with instanceDB21 (Active-Active: Load-balancing & Failover) + DB3 with instanceDB31 (Active-Active: Load-balancing & Failover) + DB4 with instance41 (Active-Active: Load-balancing & Failover)
Node 4: DB1 with instanceDB14 (Active-Passive: Failover only) + DB2 with instanceDB22 (Active-Active: Load-balancing & Failover) + DB3 with instanceDB32 (Active-Active: Load-balancing & Failover) + DB4 with instance42 (Active-Active: Load-balancing & Failover)
Note: DB1 will be the physical primary PROD OLTP database and will be open in READ-WRITE mode 24x7x365.
Note: DB2 will be a Physical Standby of DB1 and will be open in Read-Only mode for reporting purposes during the day-time, except for 3 hours at night when it will apply the logs.
Note: DB3 will be a Physical Standby of a remote database DB4 (not part of this cluster) and will be mounted in Managed Recovery mode for automatic failover/switchover purposes.
Note: DB4 will be the physical primary Data Warehouse DB.
Note: Going to 11g is NOT an option.
Note: Data Guard broker will be used across the board.
Please answer/advise of the following:
1. Is the above configuration supported and why so? If not, what are the alternatives?
2. Is the above configuration recommended and why so? If not, what are the recommended alternatives?Hi,
As far as i understand, there's nothing wrong in configuration except you need to consider below points while implementing final design.
1. No of CPU on each servers
2. Memory on each servers
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How to create 11.2.0.2 physical standby database from 2 node RAC (11.2.0.2)
Hi,
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DB : 11.2.0.2
OS : RHEL5
RMAN duplicate is causing problem with network and we decided to go for manual creation of the same.
Thanks in Advance..Hi;
Can any one please help me How to manually create 11.2.0.2 standalone physical standby database from 2 node RAC (11.2.0.2) database which is running in RHEL5 and ASM plugged in.
DB : 11.2.0.2
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Regard
Helios -
11gR2- webutil upload file to AS on two nodes RAC?
Hellow experts plz help with the following issue,
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How this will be accomplished?
--------webutil.cfg entry
transfer.appsrv.read.3=D:\UP_FILES
transfer.appsrv.write.3=D:\UP_FILES
-----FORM UPLOAD CODE
IF :CONTROL.FILE_LOC IS NOT NULL THEN
acyr3 := :CONTROL.TXTVOUCHERNO||'-'||acyr2 ;
FILE_RESULT := WEBUTIL_FILE_TRANSFER.CLIENT_TO_AS_WITH_PROGRESS(CLIENTFILE=>:CONTROL.FILE_LOC,
SERVERFILE =>'D:\UP_FILES\'||acyr3||'.PDF',
PROGRESSTITLE=>'UPLOAD TO DATABASE IN PROGRESS',
PROGRESSSUBTITLE=>'PLEASE WAIT' );
END IF;
--FORM DOWNLOAD CODE
FILE_RESULT := WEBUTIL_FILE_TRANSFER.AS_TO_CLIENT_WITH_PROGRESS
CLIENTFILE=>'D:\UP_FILES\'||acyr3||'.PDF',
SERVERFILE =>'D:\UP_FILES\'||acyr3||'.PDF',
PROGRESSTITLE=>'DOWNLOAD FROM DATABASE IN PROGRESS',
PROGRESSSUBTITLE=>'PLEASE WAIT'
CLIENT_HOST('rundll32.exe url.dll,FileProtocolHandler D:\UP_FILES\'||acyr3||'.PDF');
IF FILE_RESULT THEN
message('File downloaded successfully from the Application Server');
END IF;Well, you're uploading the file to one node, so this is no surprise. What you can do is to store your file on a shared folder (which might be a bit tricky on windows) or synchronize a folder between your nodes. Unfortunately Forms can't access ASM directly (assuming you are using ASM), so you can't store your files directly in ASM where it would be accessible from both nodes.
cheers -
How to add a second database along with existing two node RAC environment
Hi,
I was wondering if anyone can help me with this.
My Environment:
1. Two node RAC Cluster database (11.2.0.2) with ASM running perfectly (Oracle Sid = test-1)
2. I have installed a second single instance db on node 2 (Oracle Sid = test-2) with NTFS file system for datafiles
3. Database is up and running, but I am not able to connect it from any client.
4. I am getting ORA-12514: TNS:listener does not currently know of service requested in connect descriptor
5. Database (test2) is registered with grid LISTENER
5. TNSPING from client machine response is ok
Am I missing something here, happy to provide more info if requested.
Thanks,
PSC:\Users\root.test_prod>lsnrctl
LSNRCTL for 64-bit Windows: Version 11.2.0.2.0 - Production on 23-FEB-2012 11:58:05
Copyright (c) 1991, 2010, Oracle. All rights reserved.
Welcome to LSNRCTL, type "help" for information.
LSNRCTL> status
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER)))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for 64-bit Windows: Version 11.2.0.2.0 - Production
Start Date 18-FEB-2012 19:51:47
Uptime 4 days 16 hr. 6 min. 24 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File C:\app\11.2.0\grid\network\admin\listener.ora
Listener Log File C:\app\11.2.0\grid\log\diag\tnslsnr\IRIS11G-DB-2\listener\alert\log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\LISTENERipc)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=10.30.0.202)(PORT=1520)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=10.30.0.215)(PORT=1520)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+asm2", status READY, has 1 handler(s) for this service...
Service "test-11gRAC.test_prod.internal" has 1 instance(s).
Instance "test-11gr2", status READY, has 1 handler(s) for this service...
Service "test-11gRXDB.test_prod.internal" has 1 instance(s).
Instance "test-11gr2", status READY, has 1 handler(s) for this service...
Service "irisapps.test_prod.internal" has 1 instance(s).
Instance "test-11gr2", status READY, has 1 handler(s) for this service...
Service "test-2" has 1 instance(s).
Instance "test-2", status READY, has 1 handler(s) for this service...
Service "test-2XDB" has 1 instance(s).
Instance "test-2", status READY, has 1 handler(s) for this service...
The command completed successfully
LSNRCTL> service
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+asm2", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:1322 refused:0 state:ready
LOCAL SERVER
Service "test-11gRAC.test_prod.internal" has 1 instance(s).
Instance "test-11gr2", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:1829 refused:0 state:ready
LOCAL SERVER
Service "test-11gRXDB.test_prod.internal" has 1 instance(s).
Instance "test-11gr2", status READY, has 1 handler(s) for this service...
Handler(s):
"D000" established:0 refused:0 current:0 max:1022 state:ready
DISPATCHER <machine: IRIS11G-DB-2, pid: 4496>
(ADDRESS=(PROTOCOL=tcp)(HOST=IRIS11G-DB-2.test_prod.internal)(PORT=57695))
Service "irisapps.test_prod.internal" has 1 instance(s).
Instance "test-11gr2", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:1829 refused:0 state:ready
LOCAL SERVER
Service "test-2" has 1 instance(s).
Instance "test-2", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0 state:ready
LOCAL SERVER
Service "test-2XDB" has 1 instance(s).
Instance "test-2", status READY, has 1 handler(s) for this service...
Handler(s):
"D000" established:0 refused:0 current:0 max:1022 state:ready
DISPATCHER <machine: IRIS11G-DB-2, pid: 9340>
(ADDRESS=(PROTOCOL=tcp)(HOST=IRIS11G-DB-2.test_prod.internal)(PORT=58653))
The command completed successfully
LSNRCTL> -
Single instance standby for 2-node RAC
Hi,
Oracle Version:11.2.0.1
Operating system:Linux
Here i am planing to create single instance standby for my 2-node RAC database.Here i am creating my single instance standby database on 1-node of my 2-node RAC DB.
1.) Do i need to configure any separate listener for my single instance standby in $ORACLE_HOME/network/admin in ORACLE user or need to change in Grid user login.
2.) Below is the error when i am duplicating my primary 2-Node RAC to single instance DB. And it is shutting down my auxiliary instance.
[oracle@rac1 ~]$ rman target / auxiliary sys/racdba123@stand
Recovery Manager: Release 11.2.0.1.0 - Production on Sun Aug 28 13:32:29 2011
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
connected to target database: RACDB (DBID=755897741)
connected to auxiliary database: RACDB (not mounted)
RMAN> duplicate database racdba to stand
2> ;
Starting Duplicate Db at 28-AUG-11
using target database control file instead of recovery catalog
allocated channel: ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: SID=6 device type=DISK
contents of Memory Script:
sql clone "create spfile from memory";
executing Memory Script
sql statement: create spfile from memory
contents of Memory Script:
shutdown clone immediate;
startup clone nomount;
executing Memory Script
Oracle instance shut down
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of Duplicate Db command at 08/28/2011 13:33:55
RMAN-03015: error occurred in stored script Memory Script
RMAN-04006: error from auxiliary database: ORA-12514: TNS:listener does not currently know of service requested in connect descriptorAlso find my listener services.
[oracle@rac1 ~]$ lsnrctl status
LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 29-AUG-2011 10:56:24
Copyright (c) 1991, 2009, Oracle. All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.1.0 - Production
Start Date 18-AUG-2011 10:35:07
Uptime 11 days 0 hr. 21 min. 17 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/11.2.0/grid/network/admin/listener.ora
Listener Log File /u01/app/oracle/diag/tnslsnr/rac1/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.8.123)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.8.127)(PORT=1521)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+ASM1", status READY, has 1 handler(s) for this service...
Service "RACDB" has 1 instance(s).
Instance "RACDB1", status READY, has 1 handler(s) for this service...
Service "RACDBXDB" has 1 instance(s).
Instance "RACDB1", status READY, has 1 handler(s) for this service...
Service "stand" has 2 instance(s).
Instance "stand", status UNKNOWN, has 1 handler(s) for this service...
Instance "stand", status BLOCKED, has 1 handler(s) for this service...
Service "testdb" has 1 instance(s).
Instance "RACDB1", status READY, has 1 handler(s) for this service...
Service "testdb1" has 1 instance(s).
Instance "RACDB1", status READY, has 1 handler(s) for this service...
The command completed successfully
[oracle@rac1 ~]$ lsnrctl services
LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 29-AUG-2011 10:56:35
Copyright (c) 1991, 2009, Oracle. All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+ASM1", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0 state:ready
LOCAL SERVER
Service "RACDB" has 1 instance(s).
Instance "RACDB1", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:3 refused:0 state:ready
LOCAL SERVER
Service "RACDBXDB" has 1 instance(s).
Instance "RACDB1", status READY, has 1 handler(s) for this service...
Handler(s):
"D000" established:0 refused:0 current:0 max:1022 state:ready
DISPATCHER <machine: rac1.qfund.net, pid: 3975>
(ADDRESS=(PROTOCOL=tcp)(HOST=rac1.qfund.net)(PORT=43731))
Service "stand" has 2 instance(s).
Instance "stand", status UNKNOWN, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0
LOCAL SERVER
Instance "stand", status BLOCKED, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:669 refused:0 state:ready
LOCAL SERVER
Service "testdb" has 1 instance(s).
Instance "RACDB1", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:3 refused:0 state:ready
LOCAL SERVER
Service "testdb1" has 1 instance(s).
Instance "RACDB1", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:3 refused:0 state:ready
LOCAL SERVER
The command completed successfully
[oracle@rac1 ~]$Tnsnames.ora file content.
RACDB =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = racdb-scan.qfund.net)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = RACDB)
#QFUNDRAC =
stand =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST= racdb-scan.qfund.net)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = stand)
(UR = A)
)Please help me how to solve this problem.
Thanks & Regards,
Poorna Prasad.SHi,
Please find the output from v$dataguard_status from primary and standby
Primary
SQL> select message from v$dataguard_status;
MESSAGE
ARC0: Archival started
ARCH: LGWR is scheduled to archive destination LOG_ARCHIVE_DEST_2 after log swit
ch
ARCH: Beginning to archive thread 1 sequence 214 (4604093-4604095)
Error 12514 received logging on to the standby
ARCH: Error 12514 Creating archive log file to 'stand'
ARCH: Completed archiving thread 1 sequence 214 (4604093-4604095)
ARC1: Archival started
ARC2: Archival started
ARC3: Archival started
MESSAGE
ARC4: Archival started
ARC5: Archival started
ARC6: Archival started
ARC7: Archival started
ARC8: Archival started
ARC9: Archival started
ARCa: Archival started
ARCb: Archival started
ARCc: Archival started
ARCd: Archival started
ARCe: Archival started
MESSAGE
ARCf: Archival started
ARCg: Archival started
ARCh: Archival started
ARCi: Archival started
ARCj: Archival started
ARCk: Archival started
ARCl: Archival started
ARCm: Archival started
ARCn: Archival started
ARCo: Archival started
ARCp: Archival started
MESSAGE
ARCq: Archival started
ARCr: Archival started
ARCs: Archival started
ARC1: Becoming the 'no FAL' ARCH
ARC1: Becoming the 'no SRL' ARCH
ARC2: Becoming the heartbeat ARCH
ARC7: Beginning to archive thread 1 sequence 215 (4604095-4604191)
ARC7: Completed archiving thread 1 sequence 215 (4604095-4604191)
ARC5: Beginning to archive thread 1 sequence 216 (4604191-4604471)
ARC5: Completed archiving thread 1 sequence 216 (4604191-4604471)
ARCt: Archival started
MESSAGE
ARC3: Beginning to archive thread 1 sequence 217 (4604471-4605358)
ARC3: Completed archiving thread 1 sequence 217 (4604471-4605358)
LNS: Standby redo logfile selected for thread 1 sequence 217 for destination LOG
_ARCHIVE_DEST_2
LNS: Beginning to archive log 1 thread 1 sequence 217
LNS: Completed archiving log 1 thread 1 sequence 217
LNS: Standby redo logfile selected for thread 1 sequence 218 for destination LOG
_ARCHIVE_DEST_2
LNS: Beginning to archive log 2 thread 1 sequence 218
MESSAGE
LNS: Completed archiving log 2 thread 1 sequence 218
ARC4: Beginning to archive thread 1 sequence 218 (4605358-4625984)
ARC4: Completed archiving thread 1 sequence 218 (4605358-4625984)
LNS: Standby redo logfile selected for thread 1 sequence 219 for destination LOG
_ARCHIVE_DEST_2
LNS: Beginning to archive log 1 thread 1 sequence 219
LNS: Completed archiving log 1 thread 1 sequence 219
ARC5: Beginning to archive thread 1 sequence 219 (4625984-4641358)
ARC5: Completed archiving thread 1 sequence 219 (4625984-4641358)
LNS: Standby redo logfile selected for thread 1 sequence 220 for destination LOG
MESSAGE
_ARCHIVE_DEST_2
LNS: Beginning to archive log 2 thread 1 sequence 220
LNS: Completed archiving log 2 thread 1 sequence 220
ARC6: Beginning to archive thread 1 sequence 220 (4641358-4644757)
ARC6: Completed archiving thread 1 sequence 220 (4641358-4644757)
LNS: Standby redo logfile selected for thread 1 sequence 221 for destination LOG
_ARCHIVE_DEST_2
LNS: Beginning to archive log 1 thread 1 sequence 221
LNS: Completed archiving log 1 thread 1 sequence 221
MESSAGE
ARC7: Beginning to archive thread 1 sequence 221 (4644757-4648306)
ARC7: Completed archiving thread 1 sequence 221 (4644757-4648306)
LNS: Standby redo logfile selected for thread 1 sequence 222 for destination LOG
_ARCHIVE_DEST_2
LNS: Beginning to archive log 2 thread 1 sequence 222
LNS: Completed archiving log 2 thread 1 sequence 222
ARC8: Beginning to archive thread 1 sequence 222 (4648306-4655287)
ARC8: Completed archiving thread 1 sequence 222 (4648306-4655287)
LNS: Standby redo logfile selected for thread 1 sequence 223 for destination LOG
_ARCHIVE_DEST_2
MESSAGE
LNS: Beginning to archive log 1 thread 1 sequence 223
LNS: Completed archiving log 1 thread 1 sequence 223
ARC9: Beginning to archive thread 1 sequence 223 (4655287-4655307)
ARC9: Completed archiving thread 1 sequence 223 (4655287-4655307)
LNS: Standby redo logfile selected for thread 1 sequence 224 for destination LOG
_ARCHIVE_DEST_2
LNS: Beginning to archive log 2 thread 1 sequence 224
LNS: Attempting destination LOG_ARCHIVE_DEST_2 network reconnect (3135)
LNS: Destination LOG_ARCHIVE_DEST_2 network reconnect abandoned
MESSAGE
Error 3135 for archive log file 2 to 'stand'
LNS: Failed to archive log 2 thread 1 sequence 224 (3135)
ARC3: Beginning to archive thread 1 sequence 224 (4655307-4660812)
ARC3: Completed archiving thread 1 sequence 224 (4655307-4660812)
LNS: Standby redo logfile selected for thread 1 sequence 224 for destination LOG
_ARCHIVE_DEST_2
LNS: Beginning to archive log 2 thread 1 sequence 224
LNS: Completed archiving log 2 thread 1 sequence 224
LNS: Standby redo logfile selected for thread 1 sequence 225 for destination LOG
_ARCHIVE_DEST_2
MESSAGE
LNS: Beginning to archive log 1 thread 1 sequence 225
LNS: Completed archiving log 1 thread 1 sequence 225
ARC4: Beginning to archive thread 1 sequence 225 (4660812-4660959)
ARC4: Completed archiving thread 1 sequence 225 (4660812-4660959)
LNS: Standby redo logfile selected for thread 1 sequence 226 for destination LOG
_ARCHIVE_DEST_2
LNS: Beginning to archive log 2 thread 1 sequence 226
LNS: Completed archiving log 2 thread 1 sequence 226
ARC5: Beginning to archive thread 1 sequence 226 (4660959-4664925)
MESSAGE
LNS: Standby redo logfile selected for thread 1 sequence 227 for destination LOG
_ARCHIVE_DEST_2
LNS: Beginning to archive log 1 thread 1 sequence 227
ARC5: Completed archiving thread 1 sequence 226 (4660959-4664925)
LNS: Completed archiving log 1 thread 1 sequence 227
LGWR: Error 1089 closing archivelog file 'stand'
ARC6: Beginning to archive thread 1 sequence 227 (4664925-4668448)
ARC6: Completed archiving thread 1 sequence 227 (4664925-4668448)
ARC5: Beginning to archive thread 1 sequence 228 (4668448-4670392)
ARC5: Completed archiving thread 1 sequence 228 (4668448-4670392)
MESSAGE
LNS: Standby redo logfile selected for thread 1 sequence 228 for destination LOG
_ARCHIVE_DEST_2
LNS: Beginning to archive log 2 thread 1 sequence 228
LNS: Completed archiving log 2 thread 1 sequence 228
ARC4: Standby redo logfile selected for thread 1 sequence 227 for destination LO
G_ARCHIVE_DEST_2
LNS: Standby redo logfile selected for thread 1 sequence 229 for destination LOG
_ARCHIVE_DEST_2
MESSAGE
LNS: Beginning to archive log 1 thread 1 sequence 229
LNS: Completed archiving log 1 thread 1 sequence 229
ARC3: Beginning to archive thread 1 sequence 229 (4670392-4670659)
ARC3: Completed archiving thread 1 sequence 229 (4670392-4670659)
LNS: Standby redo logfile selected for thread 1 sequence 230 for destination LOG
_ARCHIVE_DEST_2
LNS: Beginning to archive log 2 thread 1 sequence 230
LNS: Completed archiving log 2 thread 1 sequence 230
ARC4: Beginning to archive thread 1 sequence 230 (4670659-4670679)
ARC4: Completed archiving thread 1 sequence 230 (4670659-4670679)
MESSAGE
LNS: Standby redo logfile selected for thread 1 sequence 231 for destination LOG
_ARCHIVE_DEST_2
LNS: Beginning to archive log 1 thread 1 sequence 231
LNS: Completed archiving log 1 thread 1 sequence 231
ARC5: Beginning to archive thread 1 sequence 231 (4670679-4690371)
ARC5: Completed archiving thread 1 sequence 231 (4670679-4690371)
LNS: Standby redo logfile selected for thread 1 sequence 232 for destination LOG
_ARCHIVE_DEST_2
LNS: Beginning to archive log 2 thread 1 sequence 232
MESSAGE
LNS: Completed archiving log 2 thread 1 sequence 232
ARC6: Beginning to archive thread 1 sequence 232 (4690371-4712566)
ARC6: Completed archiving thread 1 sequence 232 (4690371-4712566)
LNS: Standby redo logfile selected for thread 1 sequence 233 for destination LOG
_ARCHIVE_DEST_2
LNS: Beginning to archive log 1 thread 1 sequence 233
LNS: Completed archiving log 1 thread 1 sequence 233
ARC7: Beginning to archive thread 1 sequence 233 (4712566-4731626)
LNS: Standby redo logfile selected for thread 1 sequence 234 for destination LOG
_ARCHIVE_DEST_2
MESSAGE
LNS: Beginning to archive log 2 thread 1 sequence 234
ARC7: Completed archiving thread 1 sequence 233 (4712566-4731626)
LNS: Completed archiving log 2 thread 1 sequence 234
ARC8: Beginning to archive thread 1 sequence 234 (4731626-4753780)
LNS: Standby redo logfile selected for thread 1 sequence 235 for destination LOG
_ARCHIVE_DEST_2
LNS: Beginning to archive log 1 thread 1 sequence 235
ARC8: Completed archiving thread 1 sequence 234 (4731626-4753780)
LNS: Attempting destination LOG_ARCHIVE_DEST_2 network reconnect (3135)
MESSAGE
LNS: Destination LOG_ARCHIVE_DEST_2 network reconnect abandoned
Error 3135 for archive log file 1 to 'stand'
LNS: Failed to archive log 1 thread 1 sequence 235 (3135)
ARC9: Beginning to archive thread 1 sequence 235 (4753780-4765626)
ARC9: Completed archiving thread 1 sequence 235 (4753780-4765626)
LNS: Standby redo logfile selected for thread 1 sequence 235 for destination LOG
_ARCHIVE_DEST_2
LNS: Beginning to archive log 1 thread 1 sequence 235
LNS: Completed archiving log 1 thread 1 sequence 235
LNS: Standby redo logfile selected for thread 1 sequence 236 for destination LOG
MESSAGE
_ARCHIVE_DEST_2
LNS: Beginning to archive log 2 thread 1 sequence 236
LNS: Attempting destination LOG_ARCHIVE_DEST_2 network reconnect (3135)
LNS: Destination LOG_ARCHIVE_DEST_2 network reconnect abandoned
Error 3135 for archive log file 2 to 'stand'
LNS: Failed to archive log 2 thread 1 sequence 236 (3135)
ARCa: Beginning to archive thread 1 sequence 236 (4765626-4768914)
ARCa: Completed archiving thread 1 sequence 236 (4765626-4768914)
LNS: Standby redo logfile selected for thread 1 sequence 236 for destination LOG
_ARCHIVE_DEST_2
MESSAGE
LNS: Beginning to archive log 2 thread 1 sequence 236
LNS: Completed archiving log 2 thread 1 sequence 236
LNS: Standby redo logfile selected for thread 1 sequence 237 for destination LOG
_ARCHIVE_DEST_2
LNS: Beginning to archive log 1 thread 1 sequence 237
LNS: Completed archiving log 1 thread 1 sequence 237
ARCb: Beginning to archive thread 1 sequence 237 (4768914-4770603)
ARCb: Completed archiving thread 1 sequence 237 (4768914-4770603)
LNS: Standby redo logfile selected for thread 1 sequence 238 for destination LOG
MESSAGE
_ARCHIVE_DEST_2
LNS: Beginning to archive log 2 thread 1 sequence 238
LNS: Completed archiving log 2 thread 1 sequence 238
ARCc: Beginning to archive thread 1 sequence 238 (4770603-4770651)
ARCc: Completed archiving thread 1 sequence 238 (4770603-4770651)
LNS: Standby redo logfile selected for thread 1 sequence 239 for destination LOG
_ARCHIVE_DEST_2
LNS: Beginning to archive log 1 thread 1 sequence 239
LNS: Completed archiving log 1 thread 1 sequence 239
MESSAGE
ARCd: Beginning to archive thread 1 sequence 239 (4770651-4773918)
ARCd: Completed archiving thread 1 sequence 239 (4770651-4773918)
LNS: Standby redo logfile selected for thread 1 sequence 240 for destination LOG
_ARCHIVE_DEST_2
LNS: Beginning to archive log 2 thread 1 sequence 240
LNS: Completed archiving log 2 thread 1 sequence 240
ARCe: Beginning to archive thread 1 sequence 240 (4773918-4773976)
ARCe: Completed archiving thread 1 sequence 240 (4773918-4773976)
LNS: Standby redo logfile selected for thread 1 sequence 241 for destination LOG
_ARCHIVE_DEST_2
MESSAGE
LNS: Beginning to archive log 1 thread 1 sequence 241
LNS: Attempting destination LOG_ARCHIVE_DEST_2 network reconnect (3135)
LNS: Destination LOG_ARCHIVE_DEST_2 network reconnect abandoned
Error 3135 for archive log file 1 to 'stand'
LNS: Failed to archive log 1 thread 1 sequence 241 (3135)
ARC3: Beginning to archive thread 1 sequence 241 (4773976-4774673)
ARC3: Completed archiving thread 1 sequence 241 (4773976-4774673)
LNS: Standby redo logfile selected for thread 1 sequence 241 for destination LOG
_ARCHIVE_DEST_2
MESSAGE
LNS: Beginning to archive log 1 thread 1 sequence 241
LNS: Completed archiving log 1 thread 1 sequence 241
LNS: Standby redo logfile selected for thread 1 sequence 242 for destination LOG
_ARCHIVE_DEST_2
LNS: Beginning to archive log 2 thread 1 sequence 242
LNS: Completed archiving log 2 thread 1 sequence 242
ARC4: Beginning to archive thread 1 sequence 242 (4774673-4776045)
ARC4: Completed archiving thread 1 sequence 242 (4774673-4776045)
LNS: Standby redo logfile selected for thread 1 sequence 243 for destination LOG
_ARCHIVE_DEST_2
MESSAGE
LNS: Beginning to archive log 1 thread 1 sequence 243
LNS: Completed archiving log 1 thread 1 sequence 243
ARC5: Beginning to archive thread 1 sequence 243 (4776045-4776508)
ARC5: Completed archiving thread 1 sequence 243 (4776045-4776508)
LNS: Standby redo logfile selected for thread 1 sequence 244 for destination LOG
_ARCHIVE_DEST_2
LNS: Beginning to archive log 2 thread 1 sequence 244
LNS: Attempting destination LOG_ARCHIVE_DEST_2 network reconnect (3135)
LNS: Destination LOG_ARCHIVE_DEST_2 network reconnect abandoned
MESSAGE
Error 3135 for archive log file 2 to 'stand'
LNS: Failed to archive log 2 thread 1 sequence 244 (3135)
ARC6: Beginning to archive thread 1 sequence 244 (4776508-4778741)
ARC6: Completed archiving thread 1 sequence 244 (4776508-4778741)
ARC7: Beginning to archive thread 1 sequence 245 (4778741-4778781)
ARC7: Completed archiving thread 1 sequence 245 (4778741-4778781)
ARC8: Beginning to archive thread 1 sequence 246 (4778781-4778787)
ARC8: Completed archiving thread 1 sequence 246 (4778781-4778787)
ARC9: Standby redo logfile selected for thread 1 sequence 244 for destination LO
G_ARCHIVE_DEST_2
MESSAGE
ARC3: Beginning to archive thread 1 sequence 247 (4778787-4778934)
LNS: Standby redo logfile selected for thread 1 sequence 247 for destination LOG
_ARCHIVE_DEST_2
LNS: Beginning to archive log 1 thread 1 sequence 247
ARC3: Completed archiving thread 1 sequence 247 (4778787-4778934)
LNS: Completed archiving log 1 thread 1 sequence 247
LNS: Standby redo logfile selected for thread 1 sequence 248 for destination LOG
_ARCHIVE_DEST_2
LNS: Beginning to archive log 2 thread 1 sequence 248
MESSAGE
ARC4: Beginning to archive thread 1 sequence 248 (4778934-4781018)
LNS: Completed archiving log 2 thread 1 sequence 248
ARC4: Completed archiving thread 1 sequence 248 (4778934-4781018)
LNS: Standby redo logfile selected for thread 1 sequence 249 for destination LOG
_ARCHIVE_DEST_2
LNS: Beginning to archive log 1 thread 1 sequence 249
LNS: Completed archiving log 1 thread 1 sequence 249
ARC5: Beginning to archive thread 1 sequence 249 (4781018-4781033)
ARC5: Completed archiving thread 1 sequence 249 (4781018-4781033)
LNS: Standby redo logfile selected for thread 1 sequence 250 for destination LOG
MESSAGE
_ARCHIVE_DEST_2
LNS: Beginning to archive log 2 thread 1 sequence 250
233 rows selected.
SQL>Standby
SQL> select message from v$dataguard_status;
MESSAGE
ARC0: Archival started
ARC1: Archival started
ARC2: Archival started
ARC3: Archival started
ARC4: Archival started
ARC5: Archival started
ARC6: Archival started
ARC7: Archival started
ARC8: Archival started
ARC9: Archival started
ARCa: Archival started
MESSAGE
ARCb: Archival started
ARCc: Archival started
ARCd: Archival started
ARCe: Archival started
ARCf: Archival started
ARCg: Archival started
ARCh: Archival started
ARCi: Archival started
ARCj: Archival started
ARCk: Archival started
ARCl: Archival started
MESSAGE
ARCm: Archival started
ARCn: Archival started
ARCo: Archival started
ARCp: Archival started
ARCq: Archival started
ARCr: Archival started
ARCs: Archival started
ARC1: Becoming the 'no FAL' ARCH
ARC2: Becoming the heartbeat ARCH
Error 1017 received logging on to the standby
FAL[client, ARC2]: Error 16191 connecting to RACDB for fetching gap sequence
MESSAGE
ARCt: Archival started
Attempt to start background Managed Standby Recovery process
MRP0: Background Managed Standby Recovery process started
Managed Standby Recovery starting Real Time Apply
Media Recovery Log /u02/stand/archive/1_119_758280976.arc
Media Recovery Waiting for thread 2 sequence 183
RFS[1]: Assigned to RFS process 30110
RFS[1]: Identified database type as 'physical standby': Client is ARCH pid 25980
RFS[2]: Assigned to RFS process 30118
RFS[2]: Identified database type as 'physical standby': Client is ARCH pid 26008
RFS[3]: Assigned to RFS process 30124
MESSAGE
RFS[3]: Identified database type as 'physical standby': Client is ARCH pid 26029
RFS[4]: Assigned to RFS process 30130
RFS[4]: Identified database type as 'physical standby': Client is ARCH pid 26021
ARC4: Beginning to archive thread 1 sequence 244 (4776508-4778741)
ARC4: Completed archiving thread 1 sequence 244 (0-0)
RFS[5]: Assigned to RFS process 30144
RFS[5]: Identified database type as 'physical standby': Client is LGWR ASYNC pid
26128
Primary database is in MAXIMUM PERFORMANCE mode
ARC5: Beginning to archive thread 1 sequence 247 (4778787-4778934)
MESSAGE
ARC5: Completed archiving thread 1 sequence 247 (0-0)
ARC6: Beginning to archive thread 1 sequence 248 (4778934-4781018)
ARC6: Completed archiving thread 1 sequence 248 (0-0)
ARC7: Beginning to archive thread 1 sequence 249 (4781018-4781033)
ARC7: Completed archiving thread 1 sequence 249 (0-0)
58 rows selected.
SQL>also find the output for the primary alertlog file.
Tue Aug 30 10:45:41 2011
LNS: Attempting destination LOG_ARCHIVE_DEST_2 network reconnect (3135)
LNS: Destination LOG_ARCHIVE_DEST_2 network reconnect abandoned
Errors in file /u01/app/oracle/diag/rdbms/racdb/RACDB1/trace/RACDB1_nsa2_26128.trc:
ORA-03135: connection lost contact
Error 3135 for archive log file 2 to 'stand'
Errors in file /u01/app/oracle/diag/rdbms/racdb/RACDB1/trace/RACDB1_nsa2_26128.trc:
ORA-03135: connection lost contact
LNS: Failed to archive log 2 thread 1 sequence 244 (3135)
Errors in file /u01/app/oracle/diag/rdbms/racdb/RACDB1/trace/RACDB1_nsa2_26128.trc:
ORA-03135: connection lost contact
Tue Aug 30 10:50:25 2011
Thread 1 advanced to log sequence 245 (LGWR switch)
Current log# 1 seq# 245 mem# 0: +ASM_DATA1/racdb/onlinelog/group_1.268.758280977
Current log# 1 seq# 245 mem# 1: +ASM_DATA2/racdb/onlinelog/group_1.265.758280979
Tue Aug 30 10:50:25 2011
Archived Log entry 612 added for thread 1 sequence 244 ID 0x2d0e0689 dest 1:
Thread 1 cannot allocate new log, sequence 246
Checkpoint not complete
Current log# 1 seq# 245 mem# 0: +ASM_DATA1/racdb/onlinelog/group_1.268.758280977
Current log# 1 seq# 245 mem# 1: +ASM_DATA2/racdb/onlinelog/group_1.265.758280979
Thread 1 advanced to log sequence 246 (LGWR switch)
Current log# 2 seq# 246 mem# 0: +ASM_DATA1/racdb/onlinelog/group_2.269.758280979
Current log# 2 seq# 246 mem# 1: +ASM_DATA2/racdb/onlinelog/group_2.266.758280981
Tue Aug 30 10:50:27 2011
Archived Log entry 613 added for thread 1 sequence 245 ID 0x2d0e0689 dest 1:
Thread 1 cannot allocate new log, sequence 247
Checkpoint not complete
Current log# 2 seq# 246 mem# 0: +ASM_DATA1/racdb/onlinelog/group_2.269.758280979
Current log# 2 seq# 246 mem# 1: +ASM_DATA2/racdb/onlinelog/group_2.266.758280981
Thread 1 advanced to log sequence 247 (LGWR switch)
Current log# 1 seq# 247 mem# 0: +ASM_DATA1/racdb/onlinelog/group_1.268.758280977
Current log# 1 seq# 247 mem# 1: +ASM_DATA2/racdb/onlinelog/group_1.265.758280979
Tue Aug 30 10:50:30 2011
Archived Log entry 614 added for thread 1 sequence 246 ID 0x2d0e0689 dest 1:
Tue Aug 30 10:51:37 2011
ARC9: Standby redo logfile selected for thread 1 sequence 244 for destination LOG_ARCHIVE_DEST_2
Tue Aug 30 10:51:39 2011
Thread 1 advanced to log sequence 248 (LGWR switch)
Current log# 2 seq# 248 mem# 0: +ASM_DATA1/racdb/onlinelog/group_2.269.758280979
Current log# 2 seq# 248 mem# 1: +ASM_DATA2/racdb/onlinelog/group_2.266.758280981
Tue Aug 30 10:51:39 2011
Archived Log entry 620 added for thread 1 sequence 247 ID 0x2d0e0689 dest 1:
Tue Aug 30 10:51:39 2011
LNS: Standby redo logfile selected for thread 1 sequence 247 for destination LOG_ARCHIVE_DEST_2
LNS: Standby redo logfile selected for thread 1 sequence 248 for destination LOG_ARCHIVE_DEST_2
Tue Aug 30 11:08:27 2011
Thread 1 advanced to log sequence 249 (LGWR switch)
Current log# 1 seq# 249 mem# 0: +ASM_DATA1/racdb/onlinelog/group_1.268.758280977
Current log# 1 seq# 249 mem# 1: +ASM_DATA2/racdb/onlinelog/group_1.265.758280979
Tue Aug 30 11:08:27 2011
Archived Log entry 622 added for thread 1 sequence 248 ID 0x2d0e0689 dest 1:
Tue Aug 30 11:08:27 2011
LNS: Standby redo logfile selected for thread 1 sequence 249 for destination LOG_ARCHIVE_DEST_2
Thread 1 cannot allocate new log, sequence 250
Checkpoint not complete
Current log# 1 seq# 249 mem# 0: +ASM_DATA1/racdb/onlinelog/group_1.268.758280977
Current log# 1 seq# 249 mem# 1: +ASM_DATA2/racdb/onlinelog/group_1.265.758280979
Thread 1 advanced to log sequence 250 (LGWR switch)
Current log# 2 seq# 250 mem# 0: +ASM_DATA1/racdb/onlinelog/group_2.269.758280979
Current log# 2 seq# 250 mem# 1: +ASM_DATA2/racdb/onlinelog/group_2.266.758280981
Tue Aug 30 11:08:31 2011
Archived Log entry 624 added for thread 1 sequence 249 ID 0x2d0e0689 dest 1:
LNS: Standby redo logfile selected for thread 1 sequence 250 for destination LOG_ARCHIVE_DEST_2Thanks & Regards,
Poorna Prasad.S -
OEM Issue: oemagent stops after some time on specific node on a 3 node RAC system.
We have a 3 node RAC system running 11.2.0.3 .
The oemagent keeps failing on 1 particular node and needs to be brought up every now and then. What could be the probable cause of this. Also, I have not seen anything suspicious in the agent logs.
Oracle Enterprise Manager Cloud Control 12c Release 2
Copyright (c) 1996, 2012 Oracle Corporation. All rights reserved.
Agent Version : 12.1.0.2.0
OMS Version : 12.1.0.2.0
Protocol Version : 12.1.0.1.0
Last successful upload : 2015-03-10 07:28:10
Last attempted upload : 2015-03-10 07:28:10
Total Megabytes of XML files uploaded so far : 0.08
Number of XML files pending upload : 0
Size of XML files pending upload(MB) : 0
Available disk space on upload filesystem : 78.16%
Collection Status : Collections enabled
Heartbeat Status : Ok
Last attempted heartbeat to OMS : 2015-03-10 07:28:25
Last successful heartbeat to OMS : 2015-03-10 07:28:25
Next scheduled heartbeat to OMS : 2015-03-10 07:29:25
Agent is Running and Ready
Sometimes while checking status we often get the followinG:
Oracle Enterprise Manager Cloud Control 12c Release 2
Copyright (c) 1996, 2012 Oracle Corporation. All rights reserved.
Status agent Failure:unable to connect to http server at https://<servername>:<port>/emd/lifecycle/main/ [peer not authenticated]
Agent is Not Running
Any help?We have a 3 node RAC system running 11.2.0.3 .
The oemagent keeps failing on 1 particular node and needs to be brought up every now and then. What could be the probable cause of this. Also, I have not seen anything suspicious in the agent logs.
Oracle Enterprise Manager Cloud Control 12c Release 2
Copyright (c) 1996, 2012 Oracle Corporation. All rights reserved.
Agent Version : 12.1.0.2.0
OMS Version : 12.1.0.2.0
Protocol Version : 12.1.0.1.0
Last successful upload : 2015-03-10 07:28:10
Last attempted upload : 2015-03-10 07:28:10
Total Megabytes of XML files uploaded so far : 0.08
Number of XML files pending upload : 0
Size of XML files pending upload(MB) : 0
Available disk space on upload filesystem : 78.16%
Collection Status : Collections enabled
Heartbeat Status : Ok
Last attempted heartbeat to OMS : 2015-03-10 07:28:25
Last successful heartbeat to OMS : 2015-03-10 07:28:25
Next scheduled heartbeat to OMS : 2015-03-10 07:29:25
Agent is Running and Ready
Sometimes while checking status we often get the followinG:
Oracle Enterprise Manager Cloud Control 12c Release 2
Copyright (c) 1996, 2012 Oracle Corporation. All rights reserved.
Status agent Failure:unable to connect to http server at https://<servername>:<port>/emd/lifecycle/main/ [peer not authenticated]
Agent is Not Running
Any help? -
Dbms_schduler job is not running on a 2 node rac when 1st node fails
Hi,
I want to create a dbms_scheduler job in a 2 node RAC and the job should always run on the node1 and if node1 is down then it should run on node2. This is Oracle 10gR2 (10.2.0.3 in WINDOWS) .In order to do the same I did following
-- First Step
Using DBCA- Service Managment - Created a service (BATCH_SERVICE) and given node1 as preferred and node2 as available. This created following entry in tnsnames.ora in both nodes.
BATCH_SERVICE =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = node1-vip)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = node2-vip)(PORT = 1521))
(LOAD_BALANCE = yes)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = BATCH_SERVICE)
(FAILOVER_MODE =
(TYPE = SELECT)
(METHOD = BASIC)
(RETRIES = 180)
(DELAY = 5)
--- Step 2
-- Created BATCH job classes.
BEGIN
DBMS_SCHEDULER.create_job_class(
job_class_name => 'BATCH_JOB_CLASS',
service => 'BATCH_SERVICE');
END;
-- Step 3 -- created a job using job_class as BATCH_JOB_CLASS
begin
dbms_scheduler.create_job(
job_name => 'oltp_job_test'
,job_type => 'STORED_PROCEDURE'
,job_action => 'schema1.P1'
,start_date => systimestamp at time zone 'US/Central'
,repeat_interval => 'FREQ=DAILY;BYHOUR=11;BYMINUTE=30;'
,job_class => 'BATCH_JOB_CLASS'
,enabled => TRUE
,comments => 'New Job.');
end;
Now when I monitor this job it runs on node1. Now I started testing for failover. I manually shutdown 1st instance. Then as per my understanding job should run on 2nd node. But job is not picking up.
when I run the followign command
srvctl status service -d db -s BATCH_SERVICE
service BATCH_SERVICE is running on instance node2.
Any help is really appreciated.It does not show that whether job is running or broken.
-
One node RAC pause/hang/block on other node shutdown
Hi,
We have a Java application running on Linux servers connecting to a 10.2.0.1 RAC cluster, also Linux. When the application starts it opens up a pool of connections to the databsae, and these are used throughout the life time of the application. One server connects to one RAC node.
AppA - DBA
AppB - DBB
When we shutdown one node, the application connecting to that node stops, which is what we would expect in this configuration.
What is strange is that the other application blocks for 63 seconds and then continues. So it is like the database is blocking, or the database connections are blocking.
We are not using TAF, FAN, FCN, LB, VIPs or any special features, just simple lightweight JDBC from one server to one database. In fact I do not thing we are unwittingly using any of these features, we have them switched off.
johnuser1788323 wrote:
What is strange is that the other application blocks for 63 seconds and then continues. So it is like the database is blocking, or the database connections are blocking.How have you determined/diagnosed the 63s blocking? (more details in this regard may shed some light on the problem)
Assuming that the block is server side, then two basic reasons comes to mind.
Networking issue - the CRS on the surviving node has to perform certain functions, like switching the VIP of the node that left the cluster to a surviving cluster node. The listener may need to re-register services. A local firewall may need to be dynamically reconfigured for supporting the new failed-over VIP. Etc.
Thus these could result in some kind of delay or issue in the network layer that you are seeing from the client side.
Infrastructure issue. If the actual client request via JDBC reaches the server process, and it is slow in responding, then that is not a network issue - instead some underlying service or s/w layer that the server process needs to use to perform the client request is busy for those 63s.
This could be related to the Interconnect, the shared I/O storage layer or something along those lines. For example, how does the Interconnect and/or SAN switch re-act when a server node is powered down or rebooted?
There's not really sufficient information to make anything but a guesses.. You will need to isolate the problem with further testing.
I have seen similar problems with 10.1.0.3 CRS and RAC when a node is evicted from the cluster. In this case the "hung" period was in excess of 15 minutes and only for new connections (Listener unable to hand off to dedicated servers or dispatchers). Existing connections worked fine however and were unaware of any problems. But part of the issue in this case was a poor (outdated) driver layer - and also the last time we used proprietary binary drivers (kernel modules) from 3rd party vendors that results in a tainted (and very fixed and rigid) Linux kernel. Today we're sticking with an OpenSource driver layer only for Linux. -
All connections are connecting to 2nd node only in a 2 Node RAC Cluster
Hello,
I have a 10.2.0.3 database on a two node RAC Cluster with only one service configured. This service set to be preferred on both nodes.
However, all the connections are falling on Node2 only. Any idea where to look.
$> srvctl config service -d PSDB
psdbsrv1 PREF: psdb1 psdb2 AVAIL:
Thanks,
MMApplication is using the following connection string.
jdbc:oracle:thin:@(DESCRIPTION =(ADDRESS = (PROTOCOL = TCP)(HOST = PQ2-PS-db-01-vip)(PORT = 1521))(ADDRESS = (PROTOCOL = TCP)(HOST = PQ2-PS-db-02-vip)(PORT = 1521)) (LOAD_BALANCE = yes) (CONNECT_DATA =(SERVER = DEDICATED)(SERVICE_NAME = PSDBSRV1)(FAILOVER_MODE =(TYPE = SELECT)(METHOD = BASIC)(RETRIES = 180)(DELAY = 5))))
--MM -
Mutliple serveres in a two node RAC
hello friends m i newbie in RAC and i have 7 servers in my company 4 are for oracle database used for different purposes having same instance name on each of them and 3 are for application servers used for different purposes having same instance name and i want to use two node RAC for all of them now my question is
1) can i use all the 7 servers (4 database and 3 application) together in a two node RAC?
2) in RAC can i have different instances having same name?
thanx in advancesaugat chatterjee wrote:
hello friends m i newbie in RAC and i have 7 servers in my company 4 are for oracle database used for different purposes having same instance name on each of them and 3 are for application servers used for different purposes having same instance name and i want to use two node RAC for all of them now my question isRAC is a single database running across multiple servers (db instance on each). That is how Oracle scales.
Oracle does not scale the converse way - running multiple databases on a single server.
1) can i use all the 7 servers (4 database and 3 application) together in a two node RAC?That depends entirely on whether the 2 severs have the capacity to deal with the processing load currently handled by the database servers.
Also note that in Oracle the terms "+database+" and "+schema+" differ from what are used by some other RDBMS products.
An Oracle database is a physical entity. An Oracle schema is a (amongst other things) a logical database. So a single physical Oracle database can contain 1000's of logical databases - and these logical databases can be physically separated from one another (via tablespaces), can have different rights, can have different resource profiles, etc.
Each RAC node is part of a shared everything cluster - meaning that the entire physical database is available on each and every RAC node.
On RAC, you can do what is called application partitioning. You can for example configure HR clients to make use of the HR logical database (schema) on RAC node 1. RAC node 3 is for example used for the Data Mart application and node 2 handles the customer billing clients.
In other words, you partition your applications across RAC nodes.
2) in RAC can i have different instances having same name? The instance name is a physical name and should very seldom be explicitly used. Your physical RAC database's SID may be PROD. Your 4 RAC instances, one on each server, will have SIDs PROD1 to PROD4.
But you should instead create database services and have clients connect (via the RAC's SCAN/Single Client Access Name) to a specific service.
Bottom line to keep in mind - RAC is Oracle's answer to scalability. And RAC is multiple servers and a single database. Doing the converse and running multiple database on a single server (RAC or no RAC), very seldom makes any technical sense. It almost always will reduce both performance and scalability.
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