Planet MySQL Planet MySQL: Meta Deutsch Español Français Italiano 日本語 Русский Português 中文
Showing entries 1 to 10 of 20 10 Older Entries

Displaying posts with tag: PBMS (reset)

Where are they now: MySQL Storage Engines
+3 Vote Up -0Vote Down

There was once a big hooplah about the MySQL Storage Engine Architecture and how it was easy to just slot in some other method of storage instead of the provided ones. Over the years I’ve repeatedly

  [Read more...]
What is in the PBMS patch for MySQL 5.5
+0 Vote Up -0Vote Down

I thought people may be interested to know what the PBMS patch for MySQL actually patches, in case they should think this is a major hack into the MySQL source code.

Almost all of  the patch consists of  the PBMS daemon source code which is added to the "storage/pbms" folder in the MySQL source code tree. Other than that here is a list of the actual MySQL files touched and what the patch is for:

  • sql/CMakeLists.txt:
    Added PBMS source directories to the header file search list.
    Lines added: 1.
  • sql/handler.cc:
    Added PBMS server side API …






  [Read more...]
PBMS Version 2 released
+1 Vote Up -0Vote Down

Version 2 of the PBMS daemon is now ready.

Here are the major changes introduced with this version:

  • PBMS is fully integrated with MySQL 5.5:
    PBMS is now provided as a patch for MySQL 5.5 which simplifies installation and provides numerous benefits.

    • All engines are "PBMS enabled":
      PBMS no longer requires that you have a "PBMS enabled" storage engine to be able to use PBMS.

    • The MySQL client lib provides the PBMS client API:
      You no longer need to link your application to a …









  [Read more...]
PBMS presentation at MySQL Conference
+0 Vote Up -0Vote Down

Just a reminder that I will be presenting a session on PBMS at the
MySQL Conference on Thursday April 14 at 10:50.

The title is "BLOB Data And Thinking Out Side The Box" where I will be talking about the new PBMS daemon with a focus on how it handles replication and backup.


Hope to see you there!

Why use PBMS?
+1 Vote Up -0Vote Down

Why use PBMS?

I have talked to people about why they should use PBMS to handle BLOB data often enough, so I was surprised when someone asked me where they could find this information and I discovered I had never actually written it down anywhere.  So here it is.
If you are unfamiliar with PBMS, PBMS stands for PrimeBase Media Streaming. For details please have a look at the home page for BLOB Streaming.
  Both MySQL and Drizzle are not designed to handle BLOB data efficiently. This is not a storage engine problem, most storage engines can store BLOB data reasonably …



  [Read more...]
New PBMS version
+2 Vote Up -0Vote Down

A new version of PBMS for drizzle has been pushed up to launchpad:

drizzle_pbmsV2

I have rewritten PBMS and changed the way that BLOBs are referenced in order to make PBMS more flexible and to fix some of it's limitations. I have also removed some of the more confusing parts of the code and reorganized it in an attempt to make it easier for people to find there way around it.

So apart form some cosmetic changes what is different?

Maybe the best answer would be to say what hasn't changed: the user and engine API  …







  [Read more...]
PBMS version 0.5.015 beta has been released.
+1 Vote Up -0Vote Down

A new release of the PrimeBase Media Streaming daemon is now available for download at
http://www.blobstreaming.org .

This release doesn't contain any major new features just some bug fixes and a lot of house keeping changes.

If you look at the download section on http://www.blobstreaming.org you will see that there are now more packages that can be downloaded. I have separated out different client side components from the PBMS project and created separate launchPad projects for each one. You can see …




  [Read more...]
PBMS is in the Drizzle tree!
+2 Vote Up -0Vote Down

If you haven't already heard PBMS is now part of the Drizzle tree.

Getting it there was a fair bit of work but not as much as I had thought it would be. The process of getting it to work with Drizzle and running it thorough Hudson has improved the code a lot. It is amazing what some compilers will catch that others will let by. I am now a firm believer in treating all compiler warnings as errors.

I am just in the process of updating the PBMS plugin so that it will build and install the PBMS client library (libpbmscl.so) as well as the plugin. The PBMS client library is a standalone library that can be used to access the PBMS daemon …



  [Read more...]
PBMS in Drizzle
+2 Vote Up -0Vote Down

Some of you may have noticed that blob streaming has been merged into the main Drizzle tree recently. There are a few hooks inside the Drizzle kernel that PBMS uses, and everything else is just in the plug in.

For those not familiar with PBMS it does two things: provide a place (not in the table) for BLOBs to be stored (locally on disk or even out to S3) and provide a HTTP interface to get and store BLOBs.

This means you can do really neat things such as have your BLOBs replicated, consistent and all those nice databasey things as well as …

  [Read more...]
BLOBs are not just blobs
+1 Vote Up -0Vote Down

Recently when talking to someone about PBMS it occurred to me that I had been thinking about BLOBs in the traditional database sense in that they were atomic blocks of data the content of which the server knew nothing about. But with PBMS that need not be the case.

The simplest enhancement would be to allow the client to send a BLOB request to the PBMS daemon with an offset and size to just return a chunk of the BLOB. Depending on the application and the BLOB contents this may make perfectly good sense, why force the client to retrieve the entire BLOB if it only want part of it.

A much more interesting idea would be to enable the user …



  [Read more...]
Showing entries 1 to 10 of 20 10 Older Entries

Planet MySQL © 1995, 2014, Oracle Corporation and/or its affiliates   Legal Policies | Your Privacy Rights | Terms of Use

Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and does not necessarily represent the opinion of Oracle or any other party.