Each node has a VIP, which is the IP address we access. If a node goes down, its VIP address will be moved to another node according to the algorithm,
In this way, user access is normal.
I think VIP is used for failover.
When node A fails, the VIP will be moved to Node B, but Node B does not listen on this
Part 1: Test conditions
A. IP Address
192.168.1.52 node1
192.168.1.53 node2
192.168.1.55node1-vip
192.168.1.56 node2-vip
10.10.10.52 node1-priv
10.10.10.53 node2-priv
192.168.1.60 racdb-cluster-scan
B. Version: Oracle 11gR2 (11.2.0.2)
Part 2: Test process
Purpose: To test the function of modifying the VIP address 192.168.1.55 of the 192.168.1.52
VIP2 is unavailable, so that node2 does not have a new connection, the load is all on node1, and node1 does not have the Failover function. To make node2 available
VIP2 is unavailable, so that node2 does not have a new connection, the load is all on node1, and node1 does not have the Failover function. To make node2 available
Environment: AIX 5.3 + 10.2.0.5 RAC
Scenario Description: In a set of RAC, VIP2 of node2 can be abnormally moved to node1 and 2 cannot be transferred back to node2. at
Change the vip address of Oracle10gRAC1 from 192.168.2.11 to 192.168.2.13, And the vip address of rac2 from 192.168.2.12 to 192.168.2.14.
Change the vip address of Oracle 10g RAC 1 from 192.168.2.11 to 192.168.2.13, And the vip address of rac2 from 192.168.2.12 to 192.168.2.14.
Change the
Oracle 10g rac ip/VIP address modification exampleI. Preparations 1. Database Information
Operating system version: OEL5.4 x64Database Version: Oracle 10.2.0.5 x64 RAC2. IP address information
Note: The server host name cannot be changed. If you want to change the name, you need to reinstall CRS to solve the problem. It is better to reinstall it.The environment in this article is 10 Gb rac + ocfs + asm, And
this point, I gradually suspected that the new version of the bug was found today, so I am very happy:
Bug 13440962 Different subnet failed to connect to vip after restart vip
This note gives a brief overview of bug 13440962.
The content was last updated on: 01-FEB-2012
Clickherefor details of each of the sections below.
Affects:
Product (Component) Oracle Server
(Component) Oracle Server (PCW)
Range of versionsbelievedto be affectedVersions >=11.2.0.3 but BELOW 12.1
Versionsconfirmedas being affected
Platforms affectedGeneric (all/most platforms affected)
It is believed to be aregressionindefabebehaviour thus:
Regression introduced in 11.2.0.3
Fixed:
This issue is fixed in
Symptoms: Related:
(None Specified)
DescriptionThis is a regression fix for problem introduced by patch 11069846. the change in this p
Resolving Oracle clients can connect to 11g RAC VIP, but cannot connect scan IP issues
Some time ago configured a set of HP ux11.31 oracle11g R2 RAC, after the configuration is completed, the client can connect VIP and Scan IP connection database, remote clients can only connect VIP access to the database, through the scan IP access to the database can not connec
If a node fails, then the node's VIP fails over to another node on which the VIP cannotAccept connections.
What does this sentence mean? If the node fails, the VIP address of the node will be switched to another node where the VIP address cannot be connected. What is the meaning of switching? The following replies make
Note: The November 18, 2015 data shared by the Xunlei vip member account is free of charge, so do not change the password as much as possible for your convenience.Thunder's latest vip account sharing on August 1, November 18Note: 1 or 2 after the account must be copied.Account 855824057: 2 password 3555559Account 730317636: 1 Password 1755397Account xwj801206: 2 password 5193193Account 147350435: 2 pass
connects to the scan ip listener. When the scan ip listener receives the connection request, the client's connection request is sent according to the LBA algorithm, the vip listener is forwarded to the corresponding instance to complete the connection process between the client and the server. Simplified as follows: client-> scan listener-> local instance can also regard scan as a virtual host name, which
VIP cannot be started normallyDescription: Our environment is 2 node RAC, and node 1 is down due to physical faults.In this case, I want to start the VIP of Node 1 from node 2 so that the single node is transparent to the user program.
[Oracle @ UNID02 ~] $ Crs_start ora. unid01.vipAttempting to start 'ora. unid01.vip 'on member 'unid02'Start of 'ora. unid01.
algorithm, thus completing the whole client-server connection process. Simplify as follows:Local listener, local instance, scan listener, client, can also understand scan as a virtual hostname, which corresponds to the entire RAC cluster. The client host simply accesses any node of the DB cluster through this scan name. Of course, the nodes that are accessed are random, and Oracle strongly recommends parsing the scan through the DNS server's round ro
The Thunder VIP Prestige Edition at the end of last month shock on-line! The Thunder VIP Prestige Edition is the Thunder official first no advertisement does not upload the Thunder version! The Thunder VIP Prestige Edition 1.0.1.56 with other Thunder 7 different place, is the Thunder VIP Prestige Edition may close the
1. Virtual IP Technology, abbreviated vip,virtual IP.
2. Virtual IP principle
We know that the general IP address is tied to the physical network card, and the VIP is the opposite of the actual network card is not bound to the IP address. When the external network of a machine, through the domain name access to a company intranet resources, intranet DNS server
MYSQL + MHA + keepalive + VIP installation configuration (3) ----- keepalived installation configuration 1. Overview
Keepalived description: Keepalived is used to detect the status of a web server. if a web server crashes or a job fails, Keepalived will detect it, and remove the faulty web server from the system. when
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