Oracle升级到11.2.0.4之后在alert日志中出现 NUMA 警告信息-Mysql Tutorial-php.cn

Home

Database

Mysql Tutorial

Oracle升级到11.2.0.4之后在alert日志中出现 NUMA 警告信息

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB

Jun 07, 2016 pm 04:08 PM

Oracle升级到11.2.0.4之后在alert日志中出现 NUMA 警告信息

注：与本文有关的文章为：

升级到11.2.0.4之后在alert日志中出现 NUMA 警告信息

翻译自mos文章：NUMA warning message appear after upgrade to 11.2.0.4 (文档 ID 1600824.1)1

适用于：
Oracle Database - Enterprise Edition - Version 11.2.0.4 and later
Information in this document applies to any platform.

症状：
在升级到11.2.0.4之后，在database startup之后，下面的警告信息会生成：

变化：
升级到11.2.0.4

原因：
默认情况下，在11.2中，NUMA是被关闭的，但是如果在你的os级别启用了NUMA，并且如果_enable_NUMA_support = FALSE 的话，Oracle 只会检测（detect）到NUMA 而不会使用NUMA。

这个在bugBug:17475024中讨论过。closed as duplicate of Bug:16613964 where alerts like below displayed on non-Exadata setup:

解决方案：

- Apply Patch:16613964 if available for your DBVersion and Platform.

or Upgrade to 12.1 where the issus is fixed

No Workarounds are available

本文永久更新链接地址：

，

Statement

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

How does MySQL handle concurrency compared to other RDBMS?Apr 29, 2025 am 12:44 AM

MySQLhandlesconcurrencyusingamixofrow-levelandtable-levellocking,primarilythroughInnoDB'srow-levellocking.ComparedtootherRDBMS,MySQL'sapproachisefficientformanyusecasesbutmayfacechallengeswithdeadlocksandlacksadvancedfeatureslikePostgreSQL'sSerializa

How does MySQL handle transactions compared to other relational databases?Apr 29, 2025 am 12:37 AM

MySQLhandlestransactionseffectivelyusingtheInnoDBengine,supportingACIDpropertiessimilartoPostgreSQLandOracle.1)MySQLusesREPEATABLEREADasthedefaultisolationlevel,whichcanbeadjustedtoREADCOMMITTEDforhigh-trafficscenarios.2)Itoptimizesperformancewithabu

What are the data types available in MySQL?Apr 29, 2025 am 12:28 AM

MySQL data types are divided into numerical, date and time, string, binary and spatial types. Selecting the correct type can optimize database performance and data storage.

What are some best practices for writing efficient SQL queries in MySQL?Apr 29, 2025 am 12:24 AM

Best practices include: 1) Understanding the data structure and MySQL processing methods, 2) Appropriate indexing, 3) Avoid SELECT*, 4) Using appropriate JOIN types, 5) Use subqueries with caution, 6) Analyzing queries with EXPLAIN, 7) Consider the impact of queries on server resources, 8) Maintain the database regularly. These practices can make MySQL queries not only fast, but also maintainability, scalability and resource efficiency.

How does MySQL differ from PostgreSQL?Apr 29, 2025 am 12:23 AM

MySQLisbetterforspeedandsimplicity,suitableforwebapplications;PostgreSQLexcelsincomplexdatascenarioswithrobustfeatures.MySQLisidealforquickprojectsandread-heavytasks,whilePostgreSQLispreferredforapplicationsrequiringstrictdataintegrityandadvancedSQLf

How does MySQL handle data replication?Apr 28, 2025 am 12:25 AM

MySQL processes data replication through three modes: asynchronous, semi-synchronous and group replication. 1) Asynchronous replication performance is high but data may be lost. 2) Semi-synchronous replication improves data security but increases latency. 3) Group replication supports multi-master replication and failover, suitable for high availability requirements.

How can you use the EXPLAIN statement to analyze query performance?Apr 28, 2025 am 12:24 AM

The EXPLAIN statement can be used to analyze and improve SQL query performance. 1. Execute the EXPLAIN statement to view the query plan. 2. Analyze the output results, pay attention to access type, index usage and JOIN order. 3. Create or adjust indexes based on the analysis results, optimize JOIN operations, and avoid full table scanning to improve query efficiency.

How do you back up and restore a MySQL database?Apr 28, 2025 am 12:23 AM

Using mysqldump for logical backup and MySQLEnterpriseBackup for hot backup are effective ways to back up MySQL databases. 1. Use mysqldump to back up the database: mysqldump-uroot-pmydatabase>mydatabase_backup.sql. 2. Use MySQLEnterpriseBackup for hot backup: mysqlbackup--user=root-password=password--backup-dir=/path/to/backupbackup. When recovering, use the corresponding life

See all articles