1. Oracle Cluster Registry (OCR)
OCR is used to solve the amnesia problem in the cluster,
The Cluster Environment configuration file is not stored in a centralized manner, but each node has a local copy. When the cluster runs normally, you can change the cluster configuration on any node, in addition, this change will be automatically synchronized to other nodes.
There is A special situation: node A is
View the OCR storage location
[[emailprotected] ~]$ ocrcheckStatus of Oracle Cluster Registry is as follows : Version : 2 Total space (kbytes) : 262120 Used space (kbytes) : 5432 Available space (kbytes) : 256688 ID : 982267297 Device/File Name : /oradata/crs_data/ocr.dat Device/File integrity check succeeded
Managing Oracle clusterware (OCR)Oracle Clusterware places the configuration information of the entire cluster on shared storage. The information includes the list of cluster nodes, the ing between cluster database instances and nodes, and the CRS Application resource information. The storage location is on the OCR Disk. in the entire cluster, only one Node can perform read and write operations on the
Ma JianEmail:[email protected]Published: 2012.07.02Update:2012.07.09Supplemental non-Simplified Chinese version contentSince the release of Modi-based Djvutoy, Freepic2pdf, and Pdg2pic, many people are asking the same question: Can you not install Office 2003/2007 or SharePoint Designer 2007, Let Modi-based software normal OCR? After all, for Simplified Chinese, even if you install only Modi in SharePoint Designer 2007, nearly 650 MB, the office 2007
P509 WenpingIf you use dbca to create databases, cluster services, or use netca to configure cluster listeners,The corresponding configuration results are automatically written into the OCR registration records. However, if you have manually created a database (create database) and manually editedThe listener file is not recorded in OCR. This requires the Administrator to use the srvctl add command to manua
Oracle Clusterware puts the entire cluster's configuration information on shared storage, which includes a list of cluster nodes, a cluster database instance to a node map, and CRS application resource information. It is also stored on an OCR disk (or OCFS file). Therefore, the importance of this configuration file is self-evident. Any action that makes an OCR configuration change is recommended to back up
Oracle Clusterware places the configuration information of the entire cluster on shared storage. The information includes the list of cluster nodes, the ing between cluster database instances and nodes, and the CRS Application resource information. That is, it is stored on the ocr disk (or ocfs file. Therefore, the importance of this configuration file is self-evident. We recommend that you back up ocr imme
Key words: OCR, SDK, vin recognition, business license identification, seven-segment digital tube identification, invoice code identification, property card identification, meal ticket identification, invoice identification, issuing ticket identification, mobile phone number recognition, water meter identification, meter identification, gas meter identification, real estate identification, the identification of the yuan Crown sizeWen Tong Hui-Vision
Tags: Oracle OCR Backup and RecoveryIntroduction to 1.OCR Disks The problem with forgetfulness is that each node has a copy of the configuration information and the configuration information of the modified node is not synchronized. Oracle's solution is to put this configuration file on the shared storage, which is the OCR Disk. The whole
OCR is equivalent to the Windows registry. For Windows, all software information, users, configurations, and security are stored in the registry. In the same way, all cluster-related resources, configurations, nodes, and RAC databases are stored in this warehouse. If OCR is damaged, the cluster Service Startup exception occurs. You need to fix OCR. Therefore,
(Document ID 1062983.1) Applies To:Oracle database-enterprise edition-version 11.2.0.1.0 to 11.2.0.4 [Release 11.2]Information in this document applies to any platform.GoalIt is not possible to directly restore a manual or automatic OCR backup if the OCR are located in an ASM disk group. This was caused by the fact, the command ' Ocrconfig-restore ' requires ASM to being up running in order to restore a n
Comprehensive understanding of Asprise OCR: Image/Barcode Recognition tool
1. Introduction to OCR
OCR (optical Character recognition)-refers to an electronic device (such as a scanner or digital camera) that checks the printed characters on the paper, determines its shape by detecting dark, bright patterns, and then translates the shape into computer text using c
OCR corresponds to the registry of Windows. For Windows, all software information, users, configuration, security, and so on are all in the registry. And the cluster, again, all cluster-related resources, configurations, nodes, and RAC databases are all in this warehouse. If OCR is corrupted, the Cluster service initiates an exception and needs to fix OCR. Theref
The company has a need, simple point of need to recognize from a picture of Chinese, through Python to achieve, of course, other programs can be done, as long as the implementation, while the small part of the main learning Python, so the mention of Python. A small white on the internet to travel a day, finally found a trace of silk thoughts, specially in this share, I hope the great God put forward valuable comments.Today is still learning OCR algori
Tags: des style using OS io for AR artHow the Windows environment recovers (Oracle 11g Grid) OCR voting corrupted clustersAfter the Oracle 11g OCR can be placed on the ASM disk, and ASM boot depends on OCR and Votedisk, so the loss of OCR or Votedisk will cause cluter not start properlyAssuming that the original
[Oracle] export and import of OCR backup and recovery
Back up and restore OCR using exported import:
Before adjusting the cluster, for example, adding or deleting nodes, you should back up OCR once. You can use export to back up to the specified file.
Lab environment:
OS: OEL5.6
RAC: 10.2.0.1.0
(1) Disable CRS for all nodes
Node 1:
[Root @ rac1 crsd] # crsctl sto
How the Windows environment recovers (Oracle 11g Grid) OCR voting corrupted clustersAfter the Oracle 11g OCR can be placed on the ASM disk, and ASM boot relies on OCR and Votedisk, so the loss of OCR or Votedisk will cause cluter not start properlyIf the original OCR locatio
Recently to do word recognition, do not let the interface directly with others, so you can only try to use Open source class library. TESSERACT-OCR is an open-source word Recognition project from Hewlett-Packard, which allows us to quickly build a text-to-text recognition system to help develop an OCR system that recognizes images. Because of the Windows environment Development, I also have to install the s
Oracle RAC migration OCR
For how to add and delete Oracle rac ocr, see:
Oracle RAC backup and recovery OCR reference:
If you want to change an existing ocr location or a faulty ocr location, you can use the following procedure to migrate the
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