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This Week in Data With Colin Charles 52: London MySQL Meetup
Join Percona Chief Evangelist Colin Charles as he covers happenings, gives pointers and provides musings on the open source database community. This week wraps up the London MySQL meetup, where there...
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Using the keyring_vault Plugin with Percona Server for MySQL 5.7
This is the first of a two-part series on using the keyring_vault plugin with Percona Server for MySQL 5.7. The second part will walk you through on how to use Percona Xtrabackup to backup from this...
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Percona Server for MongoDB 3.6.7-1.5 Is Now Available
Percona announces the release of Percona Server for MongoDB 3.6.7-1.5 on September 17, 2018. Download the latest version from the Percona web site or the Percona Software Repositories. Percona Server...
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Upcoming Webinar Wed 9/19: Percona Server for MongoDB vs MongoDB Enterprise
Please join Percona’s Senior Support Engineer, Adamo Tonete, as he presents Percona Server for MongoDB vs MongoDB Enterprise on Wednesday, September 19th, 2018, at 12:30 PM PDT (UTC-7) / 3:30 PM EDT...
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Monitoring Processes with Percona Monitoring and Management
A few months ago I wrote a blog post on How to Capture Per Process Metrics in PMM. Since that time, Nick Cabatoff has made a lot of improvements to Process Exporter and I’ve improved the Grafana...
View ArticleNew live online training class in October: Fixing Slow Queries, Inefficient...
Continuing our series of live, online classes, Erin, Jonathan, and Kimberly will be delivering their new IEQUERY: Immersion Event on Fixing Slow Queries, Inefficient Code, and Caching/Statistics...
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Percona Server for MongoDB 3.2.21-3.12 Is Now Available
Percona announces the release of Percona Server for MongoDB 3.2.21-3.12 on September 18, 2018. Download the latest version from the Percona web site or the Percona Software Repositories. Percona Server...
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Percona XtraDB Cluster 5.6.41-28.28 Is Now Available
Percona announces the release of Percona XtraDB Cluster 5.6.41-28.28 (PXC) on September 18, 2018. Binaries are available from the downloads section or our software repositories. Percona XtraDB Cluster...
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Tutorial Schedule for Percona Live Europe 2018 Is Live
Percona has revealed the line-up of in-depth tutorials for the Percona Live Europe 2018 Open Source Database Conference, taking place November 5–7, 2018 at the Radisson Blu Hotel in Frankfurt, Germany....
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记一次对SCN天花板问题的处理
昨天晚上接到告警电话，2套数据库发生异常宕机，N套数据库出现下面的错误，导致所有的DB_LINK不能使用。 Tue Sep 18 23:47:16 BEIST 2018 Rejected the attempt to advance SCN over limit by 0 hours worth to 0x0eb5.90804f3d, by distributed transaction...
View ArticleUpdated Oracle REST Data Services (ORDS) Slides and Video
After presenting this topic a few times over the years, I decided on a different take this Spring: I would start by introducing some requirements for a new project, and how ORDS fits into that and...
View ArticleNew VLF status value
At least since I started working on the SQL Server team (just after 7.0 shipped) and since then there have only been two VLF status codes: 0 = the VLF is not active (i.e. it can be (re)activated and...
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Prometheus 2 Times Series Storage Performance Analyses
Prometheus 2 time series database (TSDB) is an amazing piece of engineering, offering a dramatic improvement compared to “v2” storage in Prometheus 1 in terms of ingest performance, query performance...
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MyRocks Disk Full Edge Case
RocksDB engine—and it’s MySQL implementation MyRocks—is a very good alternative engine for MySQL. It has proven to be very efficient and stable for many workloads, including those of large scale....
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ProxySQL 1.4.10 and Updated proxysql-admin Tool Now in the Percona Repository
ProxySQL 1.4.10, released by ProxySQL, is now available for download in the Percona Repository along with an updated version of Percona’s proxysql-admin tool. ProxySQL is a high-performance proxy,...
View ArticleChange is in the Air With Your Oracle Certification Profile – ACTON REQUIRED
If you've been around the Oracle Certification scene for awhile, you may remember the colossal change we made around 2010 when we moved to CertView, our candidate self-service tool. CertView...
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Oracle 12c Sharding学习(一)-概念和体系结构
Sharding是一种水平数据分片的架构。每个数据库都单独的有自己的本地资源（CPU、内存、硬盘）。这样的配置中，每个数据库被称作分片shard。所有的分片合并在一起凑成一个逻辑数据库，这个逻辑的数据库被称作分片数据库(SDB)。水平分片将一张数据库中的表拆分成多个分片，每个分片有相同的列，但是具有不同的行。因此这样的表也被称作(sharded table)。...
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Oracle 12c Sharding学习(二)-安装
这里我使用三台虚拟机来完成Sharding的安装。主要是Sharding-Catalog，Shard1和Shard2。 节点 IP地址 Home Ports DB Name Schedule Agent Shard Catalog 192.168.56.141 Oracle Home：/u01/app/oracle/product/12.2.0.1/db_1 GSM...
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End-of-Life Reminder for Percona Server for MongoDB 3.2
As noted on our Software and Platform Lifecycle page, Percona Server for MongoDB 3.2 will be end of life on September 30, 2018. According to the Percona Services Lifecycle Policy, customers with an...
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OAC 18.3.3: New Features
I believe there is a hidden strategy behind Oracle's product release schedule: every time I'm either on holidays or in a business trip full of appointments a new version of Oracle Analytics Cloud is...
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