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10 Newer Entries Showing entries 31 to 40 of 34405 10 Older Entries
MySQL 5.5.43 Overview and Highlights
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MySQL 5.5.43 was recently released (it is the latest MySQL 5.5, is GA), and is available for download here:

http://dev.mysql.com/downloads/mysql/5.5.html

This release, similar to the last 5.5 release, is mostly uneventful.

There were only 2 “Functionality Added or Changed” items this time, and 10 additional bugs fixed.

Out of the 10 bugs, there was 1 InnoDB bug, 1 replication bug, and 6 crashing bugs, all of which seemed rather minor or obscure. Here are the ones worth noting:

  • Functionality Changed: CMake support was …
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Shinguz: Controlling worldwide manufacturing plants with MySQL
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Taxonomy upgrade extras: multi-source replicationmysql-replicationreplicationMulti-Master Replicationfan-in replicationrow filteringGTID

A MySQL customer of FromDual …

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Want to be a MySQL/MariaDB Support Engineer?
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MariaDB is looking to hire Support Engineers. If interested, email me your resume.

I look forward to hearing from you.

 

MySQL 5.7.7 Overview and Highlights
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MySQL 5.7.7 was recently released (it is the latest MySQL 5.7, and is the first “RC” or “Release Candidate” release of 5.7), and is available for download here and here.

As for the fixes/changes, there are quite a few again, which is expected in an early RC release.

The main highlights for me were (though the enhancements, and potentially impactful changes, are definitely not limited to this list):

  • Optimizer Note: It is now possible to …
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MySQL 5.7.6 Overview and Highlights
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MySQL 5.7.6 was recently released (it is the latest MySQL 5.7, and is the “m16″ or “Milestone 16″ release), and is available for download here and here.

As for the fixes/changes, there are quite a few (the official release was again split into 3 separate emails), which is expected in a “milestone” release.

The main highlights for me were (though the enhancements, and potentially impactful changes, are definitely not limited to this list):

  [Read more...]
fsfreeze in Linux
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The fsfreeze command, is used to suspend and resume access to a file system. This allows consistent snapshots to be taken of the filesystem. fsfreeze supports Ext3/4, ReiserFS, JFS and XFS.

A filesystem can be frozen using following command:

# /sbin/fsfreeze -f /data

Now if you are writing to this filesystem, the process/command will be stuck. For example, following command will be stuck in D (UNINTERUPTEBLE_SLEEP) state:

# echo “testing” > /data/file

Only after the filesystem is unfreezed using the following command, can it continue:

# /sbin/fsfreeze -u /data

As per the fsfreeze main page, “fsfreeze is …

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InnoDB 전문 검색 : N-gram Parser
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기본 InnoDB 전문 검색(Full Text) 파서는 공백이나 단어 분리자가 토큰인 라틴 기반 언어들에서는 이상적이지만 개별 단어에 대한 고정된 구분자가 없는 중국어, 일본어, 한국어(CJK)같은 언어들에서는 각 단어는 여러개의 문자들의 조합으로 이루어집니다. 그래서 이경우엔 단어 토큰들을 처리할 수 있는 다른 방법이 필요합니다.

우리는 CJK에서 사용할 수 있는 n-gram 파서를 …

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Encrypting MySQL Backups
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Encryption is important component of secure environments. While being intangible property security doesn’t get enough attention when it comes to describing various systems. “Encryption support” is often the most of details what you can get asking how secure the system is. Other important details are often omitted, but the devil in details as we know. In this post I will describe how we secure backup copies in TwinDB.

See the picture. This is what happens when encryption is used incorrectly. The encryption algorithm can be perfect, but poor choice …

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Free eBook: The Strategic IT Manager's Guide To Building A Scalable DBA Team
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How do top-performing companies manage vast amounts of data, while keeping it secure, available, and performant? How do they get teams to tie together disparate databases such as MySQL, Cassandra, Oracle, and Hadoop? Does your organization demonstrate this level of mastery over your data? If not, do you know how to achieve it?

The newest free ebook from VividCortex will help you transform your DBA team into a strategic center of excellence. This 45-page book covers everything from planning …

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Shutterfly Case Study
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Shutterfly needed to develop a cloud-based MySQL back end quickly without disrupting their existing customers. They turned to Pythian’s DevOps and MySQL experts who built, tested, and migrated a scalable cloud environment—ideal for web-scale growth—and significantly improved application stability and flexibility. The solution was delivered on time and successfully supported traffic spikes with no downtime during launch.

Shutterfly Case Study

10 Newer Entries Showing entries 31 to 40 of 34405 10 Older Entries

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