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Storage Inspector 0.5

Storage Inspector 0.5


Storage Inspector is a Firefox extension that makes it easy to view any sqlite database files in the current profile. more>>
Storage Inspector is a Firefox extension that makes it easy to view any sqlite database files in the current profile. This includes the anti-phishing and search engine...

Developer Comments:

There are quite a few polish issues that need to be addressed before this version is ready for the masses. If you notice problems, please view the readme.txt file first and tell me if there are other issues.

You can set the storageinspector.openmode pref to 2 if you want the extension to open in a new tab instead of its own window.

I have primarily tested the extension in Firefox 2b1 but would still like feedback on how it runs in 3a1.

If you dont like something, please post here with a constructive statement telling me what you would like.

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Added: 2007-07-26 License: GPL (GNU General Public License) Price:
824 downloads
PicoStorage 0.1

PicoStorage 0.1


PicoStorage is a lightweight structured storage software. more>>
PicoStorage allows you to store hierarhical information (similar to "files and directories") inside a single file. The functionality offered is largely equivalent to the one offered by any filesystem, or by the Structured Storage and Compound Files.

PicoStorage can efficiently handle huge numbers of small files, with very economical disk usage; it also allows you to keep open (in RAM) simultaneously a large number of files. Transaction support guarantees data integrity.

Learn more about the distinctive advantages of PicoStorage. or look at the benchmark.

The library is available on a dual-license basis: under GPL for free, and under a commercial license for use in closed-source applications.

Using

The library contains the classes File and Dir to represent files and directories. On a File you can read or write a number of bytes from a given offset, and set/get the file size. On a Dir you can create entries (either files or subdirectories), open entries, delete entries, and iterate over the directorys content.

The storage itself (i.e. the whole hierarchical structure, contained in a filesystem file) is represented by the class Storage. Using this class, you can create or open a storage, obtain the root directory of the storage, close the storage and do commit or rollback.
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Added: 2005-04-13 License: GPL (GNU General Public License) Price:
1655 downloads
Apache-Storage 1.00

Apache-Storage 1.00


Apache::Storage is Perl module containing simple functions to store and retrieve information from within the Apache process. more>>
Apache::Storage is Perl module containing simple functions to store and retrieve information from within the Apache process.
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Added: 2005-08-24 License: GPL (GNU General Public License) Price:
1521 downloads
cfgstoragemaker 1.1

cfgstoragemaker 1.1


cfgstoragemaker is an MRTG configuration file generator for storage monitoring via SNMP. more>>
cfgstoragemaker remotely generates an MRTG config file in order to graph all storage devices (disk, memory, and swap) of one or more specific host(s) via SNMP.
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Added: 2005-04-07 License: GPL (GNU General Public License) Price:
1661 downloads
Storage Resource Broker 3.4.2

Storage Resource Broker 3.4.2


Storage Resource Broker is a network data storage middleware. more>>
Storage Resource Broker is client-server middleware that provides a uniform interface for connecting to heterogeneous data resources over a network and accessing replicated data sets.
SRB, in conjunction with the Metadata Catalog (MCAT), provides a way to access data sets and resources based on their attributes and/or logical names rather than their names or physical locations.
Starting with SRB 2.1.1 we now have an install script, install.pl, that can do a complete Postgres, MCAT and SRB installation. See README.MCAT.INSTALL. With SRB 3.0.0, this script can run on Solaris too, as well as the original Linux and Mac OS X.
The SEA authentication system is no longer recommended; for the secure authentication use either the ENCRYPT1 form of MDAS_AUTH authentication, or GSI. It should be noted that if the SEA authentication scheme is to be used and if the SEA library (libsea.a) does not already exist on your build platform, the SEA software that can be downloaded at the
URL must be built first.
1) Build configuration.
This version uses the configure script to configure the build. Most of the configurable parameters for building the SRB server and client can be configured using the "./configure" script. Run "./configure --help" for more information.
All configurable parameters for building the SRB server and the client library, including those set by the configure script, are defined in the mk/mk.config.in file. (The configure script automatically generates a third file, mk/mk.config, using mk/mk.config.in as a
template.)
Those parameters that cannot be modified via the configure script (because flags for those parameters have not yet been implemented) are set by directly editing the mk/mk.config.in file prior to running "./configure". Comments in the mk/mk.config.in file make it clear whether or not a particular parameter can be set through the configure
script, and if so, how to do so.
NOTE: The configure script does a number of self tests before the configuration is carried out. One of the test it does is the compiler test which it assumes "gcc" as the default compiler. If "gcc" is not installed or if the test of "gcc" failed (which happened on an AIX platform), the configure script should be re-run with the env variable CC set to cc or other compilers. This will override the default in the compiler test.
If the configure script still failed, do the following:
a) cd SRB2_0_0rel
b) ./config.rescue
c) edit the mk/mk.config file
2) Configure examples
a) Non-MCAT-enabled server and client, type in
configure
This will configure the mk.config file to build a non-MCAT enabled
server and client with the default settings.
b) Non-MCAT-enabled server and client with java enabled, type in
configure --enable-javagui=yes --enable-jdkhome=/usr/local/apps/jdk1.4.1
where /usr/local/apps/jdk1.4.1 is the directory where the JAVA JDK 1.4.1
is installed.
c) MCAT-enabled server with Oracle 8.1.5 MCAT, type in
configure --enable-oramcat --enable-oraver=815
--enable-orahome=/usr/local/apps/oracle/product/8.1.7
where /usr/local/apps/oracle/product/8.1.7 is the Oracle home
directory.
2) Parameters in the mk/mk.config file
The SRB architecture supports multiple SRB servers running on various hosts. Each SRB server may be built with different options, as set by the configure script and/or defined in the mk/mk.config.in file. For example, the SRB server on host A may include the driver for accessing HPSS and the SRB server on host B may include the driver for accessing the Lobj stored in DB2, etc.
The parameters are self-explanatory through the comments given in this file. Some of the more important parameters are discussed below:
installDir - The absolute path of the SRB install directory.
PORTNAME - The OS platform of this SRB port. Currently, the SRB software runs on 8 platforms. i.e., valid PORTNAMEs are :
PORTNAME_solaris, PORTNAME_sunos, PORTNAME_linux, PORTNAME_osx,
PORTNAME_aix, PORTNAME_alpha, PORTNAME_c90 and PORTNAME_sgi.
SRB_LARGEFILE64 - defines whether the 64 bit file size is supported by the underlining driver of this SRB server. Current, 64 bit file size is supported by the ORTNAME_solaris, PORTNAME_aix, PORTNAME_linux and PORTNAME_c90 platforms.
ORAMCAT - defines that this SRB server being built is MDAS enabled and the MCAT is stored in Oracle DBMS. Normally, only one SRB server is MDAS enabled.
DB2MCAT - defines that this SRB server being built is MDAS enabled and the MCAT is stored in Oracle DBMS. Normally, only one SRB server is MDAS enabled.
NOTE : Both ORAMCAT and DB2MCAT cannot be defined at the same time.
ADDR_64BIT - defines whether to compile for 64 bits address. This option has only been tested for the the Solaris and Linux platforms.
PARA_OPR - defines whether this SRB server support parallel operation API.
MDAS_AUTH - defines whether the plain text and encrypted password MDAS authorization scheme will be supported. If used, the user/passwd pair registered with the MDAS catalog will be used to authenticate a user. Comment it out if the SRB server does not support MDAS authorization.
NOTE : A server can be built to support either MDAS_AUTH (plain or encrypted (ENCRYPT1)) or GSI_AUTH, or both.
SEA_AUTH - defines whether SEA authorization scheme will be supported. The software can be configured to support both SEA_AUTH and MDAS_AUTH. (SEA is no longer recommended.)
LIB_SEA - Is needed only if SEA_AUTH is defined. LIB_SEA specifies where the SEA client library is located.
GSI_AUTH - defines whether the GSI authentication scheme is supported. This is set when --enable-gsi-auth is included on the configure line.
NOTE : A server can be built to support either MDAS_AUTH or GSI_AUTH,
or both.
LIB_GSI_AUTH - Set by configure when --enable-gsi-auth is included (i.e. GSI_AUTH is defined). LIB_GSI_AUTH specifies where the GSI client libraries are located. The optional configure --enable-globus-location=path can also be used specify the parent
location of the GSI libaries, and will cause LIB_GSI_AUTH to be adjusted.
JAVA_GUI and javaDir - JAVA_GUI defines whether the srbBrowser should be built. javaDir specifies the directory where the JDK software is installed. (e.g. /usr/local/apps/Java). See README.srbBrowser for more details.
3) "cd" to the main SRB directory and type in "gmake clean" and then "gmake" to make the SRB software. The Makefile contains various options to make and clean all or a subset of the build.
- gmake --- build all.
- gmake clean --- clean all.
- gmake srb --- build only the SRB server and client.
- gmake clean_srb --- clean only the SRB server and client.
- gmake util --- build only the utilities (S commands). See README.utilities for more details.
- gmake clean_util --- clean only the utilities.
- gmake browser - build only the java srbBrowser GUI. See README.srbBrowser for more details.
- gmake clean_browser - clean only the java srbBrowser.
4) (Optional) Type in "gmake install" to install the software in the $(installDir) directory. This procedure installs the following modules in the $(installDir) directory:
bin/runsrb - The script that starts the SRB
bin/srbMaster2_0_0 - The frontend server.
bin/srbServer - The backend server (forked by the srbMaster1_0 for each client connection).
bin/libSrbClient.a - The client library.
data/hostAuthConfig - The optional (needed only if HOST_BASED_AUTH in the mk.config file is set) host based authorization configuration file.
data/mcatHost - This file identifies the host on which the MCAT enabled SRB server is running.
data/hostConfig - This is the optional SRB host configuration file. It is only needed when when you want to add aliases to your local hostName.
data/hpssCosConfig - This is the optional HPSS Class of Services configuration file. It is only needed if HPSS in the mk.config file is set.
data/hpssNodceAuth - The file contains authentication info for non-dce HPSS. It is only needed if the HPSS and NO_DCE flags in the mk.config file are set.
data/MdasConfig - The MDAS configuration file.
data/metadata.fkrel - This file defines the foreign key relationship between the MDAS catalog tables and is used internally by the SRB for query generation. This file should not be changed between releases.
data/LobjConfig - The database configuration file for the DB Large Object driver. Basically, it contains the userID and password for accessing each database server.
Enhancements:
- Three vulnerabilities that allow SRB users to read/write non-Vault files that are readable/writable by the the srbadmin user were fixed.
- A bug that causes the GridFTP driver to use the wrong credential to connect to GridFtp server was fixed.
- A file descriptor lock bug was fixed.
- Uploading files larger than 2 gigabytes into GridFtp resources now works.
- Timeout bugs that could arise when sending large numbers of files were fixed.
- A core dump problem for HPSS type resources involving parallel I/O on Linux servers was fixed.
- A new option -o was added to show collection ownership in SgetColl.
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Added: 2006-07-07 License: Free For Educational Use Price:
1207 downloads
Twisted Storage 0.1.5

Twisted Storage 0.1.5


Twisted Storage is an application that will take your data and manage it for you, just like a file system. more>>
Twisted Storage is an application that will take your data and manage it for you, just like a file system. But Twisted Storage goes way beyond what a normal file system does.
What types of "objects" are stored in Twisted Storage : just regular files. The data stored in the system is expected to be fixed content, meaning it doesnt change at all. If you read the data back, change it, and store it, it is considered a different file. There are plenty of examples of fixed content data : emails you received, movies or mp3 files you made or own, documents you wrote, etc. In fact it is estimated that 80% of the data you have on your computer is fixed, reference data.
Your Twisted Storage system can start out small - a single computer with a few disk drives. When you need more storage you can add more disk drives and more computers. But it has been designed to store petabytes worth of data without requiring any special hardware. For example storing a petabyte worth of data, using the biggest disk drives available today (500 GB), would require 2000 disk drives. To overcome the need of special hardware, Twisted Storage is a scalable, distributed system using ordinary commodity computers. Even so that petabyte of data would require 500 computers networked together and that requires special handling.
Twisted Storage has a few features you wont find in any file system. For example once a file is added to the Twisted Storage repository it can be written in multiple locations simultaneously. The system has been designed to be compliant with Sarbanes-Oxley Act: when an object is added to the repository you can no longer delete it and the integrity of the contents are guaranteed. In addition any access to the object is recorded.
Main features:
Scalable to thousands of servers and multiple petabytes of data.
- Regardless of how much data you want to store,Twisted Storage is designed to handle it. The system can grow from one computer and a few disks to hundreds of systems and thousands of disk drivers.
Automatic data recovery without human intervention.
- Twisted Storage doesnt require backup/restore software or procedures. All data written to the system is recorded in multiple locations.
No special disaster recover procedures.
- So long as you have your systems in physically different locations and you have instructed the software to write the multiple copies to those systems, you have no-hassle disaster recover. If one of the sites goes down, the system will retrieve any data from the other systems. Additionally, once the disaster site is up and running, the system will automatically restore the data to the it.
Simplified configuration.
- To ease management of the system, you can change any one systems configuration and have it ripple through out the system.
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Added: 2006-10-25 License: GPL (GNU General Public License) Price:
1094 downloads
FileSystemStorage 2.5.2

FileSystemStorage 2.5.2


FileSystemStorage is a project that provides FileSystem storage for Archetypes. more>>
FileSystemStorage is a project that provides FileSystem storage for Archetypes.

FileSystemStorage is an Archetype storage for storing data on FileSystem This storage is used to avoid ZODB to grow quickly when using a lot of large files.

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Added: 2007-02-09 License: GPL (GNU General Public License) Price:
987 downloads
A MySQL Storage Engine for AWS S3 0.06

A MySQL Storage Engine for AWS S3 0.06


A MySQL Storage Engine for AWS S3 is a plugin storage engine that allows MySQL to access Amazon Web Services. more>>
A MySQL Storage Engine for AWS S3 project is a plugin storage engine that allows MySQL to access Amazon Web Services Simple Storage Service (AWS S3) buckets and items.
You need a MySQL source tree, and you need to have it built.
Figure out where the source tree is.
In my case its /home/mark/mysql/mysql-5.1-arch
Figure out where the target install tree is.
In my case its /home/mark/mysql/builds/example
Figure out where the MySQL build puts storage engine plugins.
Its probably in lib/mysql under the install tree
Or its /usr/lib/mysql
Or its /usr/local/lib/mysql
For me its /home/mark/mysql/builds/example/lib/mysql
Then run:
./config/bootstrap
./configure --with-mysql=/path/to/mysql-source --libdir=/path/to/mysql-plugins
make && make install
You can optionally copy the "src" directory here into storage/ in the
MySQL server source, rebuild MySQL, and things should compile.
Next, you should probably install the S3 command line tools.
They depend on you having Python.
Get them at http://www.hanzoarchives.com/development-projects/s3-tools/
If you dont have one yet, you need an Amazon AWS account, and then
request that they enable S3. Go to http://amazonaws.com/ to do that.
You will need to get your "AWS Access Key Identifiers".
Assume they are
FV8CY5793BC7CY32YOSN
W9oQxQNJizGgjxNc82giE9/ipefQW19tuO2xpC9G
(I just made those up with a random number generator.)
Put this in your .bashrc file
AWS_ACCESS_KEY_ID=FV8CY5793BC7CY32YOSN
AWS_ACCESS_KEY_SECRET=W9oQxQNJizGgjxNc82giE9/ipefQW19tuO2xpC9G
export AWS_ACCESS_KEY_ID AWS_ACCESS_KEY_SECRET
This isnt used by the storage engine, but it makes using the s3 command
line tools easier.
Use s3mkbucket to create a bucket. Remember that buckets are in a
global namespace, and there are advantages to having them look lik a
domain name. I suggest you snap up "s3.example.com", where
"example.com" is your own domain name.
s3mkbucket s3.example.com
s3put -k solfege/Do -s "a deer, a female deer" s3.example.com
s3put -k solfege/Re -s "a drop of golden sun" s3.example.com
s3put -k solfege/Mi -s "a name I call myself" s3.example.com
s3put -k solfege/Fa -s "a long long way to run" s3.example.com
s3put -k solfege/So -s "a needle pulling thread" s3.example.com
s3put -k solfege/La -s "a note to follow So" s3.example.com
s3put -k solfege/Ti -s "a drink with jam and bread" s3.example.com
Then at the mysql> prompt
create table s3notes (s3id varchar(255) not null primary key, s3val blob)
engine=AWSS3
connection=awss3 s3.example.com FV8CY5793BC7CY32YOSN W9oQxQNJizGgjxNc82giE9/ipefQW19tuO2xpC9G;
select * from s3notes where s3id=solfege/Re;
insert into s3notes (s3id, s3val) values (color/Red, ff 00 00);
select * from s3notes where s3id=color/Red;
delete from s3notes where s3id=color/Red;
You can name the table anything you want, but the fields must be named s3id and s3val, and s3id must be the primary key.
Enhancements:
- More flexible schema, CREATE SERVER, and SELECT without WHERE are supported.
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Added: 2007-04-20 License: GPL (GNU General Public License) Price:
548 downloads
Gluster 1.2.2 (GlusterFS)

Gluster 1.2.2 (GlusterFS)


GlusterFS package contains clustered file storage that can scale to peta bytes. more>>
GlusterFS package contains clustered file storage that can scale to peta bytes. GlusterFS is a programmable system. With little thinking, you can even redesign the GlusterFS file system by re-arranging the GlusterFS components using translator interface. It is all achieved through volume specification file. This allows GlusterFS to be flexible for all kinds of storage needs. Even with all these advanced features, GlusterFS is very easy to setup and manage.

Gluster is a GNU cluster distribution aimed at commoditizing Supercomputing and Superstorage. Core of the Gluster provides a platform for developing clustering applications tailored for a specific tasks such as HPC Clustering, Storage Clustering, Enterprise Provisioning, Database Clustering etc.

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Added: 2007-01-17 License: GPL (GNU General Public License) Price:
1012 downloads
 
Other version of Gluster
Gluster 1.1applications tailored for a specific tasks such as HPC Clustering, Storage Clustering
License:GPL (GNU General Public License)
Download (123MB)
807 downloads
Added: 2007-08-08
Secure Storage service for the gLite middleware 1.1.2-1

Secure Storage service for the gLite middleware 1.1.2-1


Secure Storage service for the gLite middleware provides users with a set of tools to store data in a secure way. more>>
Secure Storage service for the gLite middleware project provides users with a set of tools to store in a secure way and in an encrypted format confidential data (e.g. medical or financial data) on the grid storage elements.
The data stored using the tools provided will be accessible and readable only by authorized users. Moreover, it solves the insider abuse problem preventing also the administrators of the storage elements to access the confidential data in a clear format.
The service has been designed and developed for the grid Middleware of the EGEE infrastructure, gLite, in the context of the TriGrid VL Project.
Secure Storage documentation generated with Doxygen are available.
Enhancements:
- A minor bug was fixed.
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Added: 2007-07-24 License: The Apache License 2.0 Price:
823 downloads
 
Other version of Secure Storage service for the gLite middleware
Secure Storage service for the gLite middleware 1.0.0-4 (Keystore Server)Secure Storage service for the gLite middleware project provides users with a set of tools to ... or financial data) on the grid storage elements. The data stored using the tools provided will
License:The Apache License 2.0
Download (2.4MB)
824 downloads
Added: 2007-07-22
Class::DataStore 0.07

Class::DataStore 0.07


Class::DataStore is a Perl module for generic OO data storage/retrieval. more>>
Class::DataStore is a Perl module for generic OO data storage/retrieval.

SYNOPSIS

my %values = ( one => 1, two => 2 );
my $store = Class::DataStore->new( %values );

# using get/set methods
$store->set( three, 3 );
my $three = $store->get( three );

# using AUTOLOAD method
$store->four( 4 );
my $four = $store->four;
my @four = $store->four; # returns a list

my $exists = $store->exists( three ); # $exists = 1
my $data_hashref = $store->dump;
$store->clear;

Class::DataStore implements a simple storage system for object data. This data can be accessed via get/set methods and AUTOLOAD. AUTOLOAD calls are not added to the symbol table, so using get/set will be faster. Using AUTOLOAD also means that you will not be able to store data with a key that is already used by a instance method, such as "get" or "exists".
This module was written originally as part of a website framework that was used for the Democratic National Committee website in 2004. Some of the implementations here, such as get() optionally returning a list if called in array context, reflect the way this module was originally used for building web applications.

Class::DataStore is most useful when subclassed. To preserve the AUTOLOAD functionality, be sure to add the following when setting up the subclass:

use base Class::DataStore;
*AUTOLOAD = &Class::DataStore::AUTOLOAD;
This module is also a useful add-on for modules that need quick and simple data storage, e.g. to store configuration data:
$self->{_config} = Class::Datastore->new( $config_data );
sub config { return $_[0]->{_config}; }
my $server = $self->config->server;
my $sender = $self->config->get( sender );

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Added: 2006-10-06 License: Perl Artistic License Price:
1113 downloads
Userexitd for TSM 0.4

Userexitd for TSM 0.4


Userexitd for TSM is a configurable handler for Tivoli Storage Manager events. more>>
Userexitd for TSM is a configurable handler for Tivoli Storage Manager events.
Userexitd for TSM allows an administrator to filter events using regular expressions and run various actions for TSM events, such as sending mail and SNMP traps, writing messages into syslog, and running scripts and programs.
This software consists of two parts: a simple shared library (userexit.so), which is dynamically linked to the TSM Server as a user exit and communicates using a socket with the userexitd daemon, which runs as a separate service. The daemon is configured with an XML configuration file.
Enhancements:
- This release features some code cleanup, a working AIX port, support for reloading configuration on SIGHUP
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Added: 2006-09-24 License: BSD License Price:
1126 downloads
Shed Skin 0.0.23

Shed Skin 0.0.23


Shed Skin is an experimental Python-to-C++ compiler. more>>
Shed Skin is an experimental Python-to-C++ compiler. Shed Skin accepts pure Python programs, and generates optimized C++ code. This means that, in combination with a C++ compiler, it allows for translation of Python programs into highly efficient machine language. For a set of 16 non-trivial test programs, measurements show a typical speedup of 2-40 over Psyco, about 12 on average, and 2-220 over CPython, about 45 on average (see Section 5 of my Masters Thesis on the right). Shed Skin also outputs annotated source code.
The high performance and elegant approach of Shed Skin (it is only 6000 lines!) come at a cost. First, it currently only accepts programs that are statically typed. This simply means that variables can only ever have a single type. So e.g. a = 1; a = 1 is not allowed. Of course, a single type can be abstract or generic (as in C++), so that e.g. a = A(); a = B(), where A and B have a common base class, is allowed.
Second, Python programs cannot currently freely use the Python standard library. However, some common imports are supported (see *_.py), and many others can be easily added. The problem is a practical one, since in theory it is possible to create bindings for most library modules. A simple work-around can be to only compile critical parts of a Python program, and communicate with it through e.g. files and standard in- and output. This way, the main program can use the full Python dynamics and standard library, and the whole program is written in pure Python.
Shed Skin is still alpha software, and there are some other minor, mostly temporary, limitations. Please read the Limitations section carefully, before trying to compile a program. The only thing I ask in return for making the software available under the GPL, is that you send me an email when you encounter a problem, that is not listed among these limitations. This is the fastest way to getting your program supported, since I typically do not fix problems I do not know about. Please also let me know if you would like me to implement certain library calls.
Enhancements:
- Support for __iadd__, __imul__, and such was added (but not for __ipow__ and __imod__).
- The set implementation was optimized.
- A string formatting problem was fixed (%% did not always work).
- Some bugs were fixed in generating extension modules.
- A particular inheritance problem was fixed.
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Added: 2007-06-29 License: GPL (GNU General Public License) Price:
850 downloads
BerkeleyDB Backend Storage Engine for DURUS 20070503

BerkeleyDB Backend Storage Engine for DURUS 20070503


BerkeleyDB Backend Storage Engine for DURUS provides a storage engine for DURUS, a persistence system for the Python language. more>>
BerkeleyDB Backend Storage Engine for DURUS project provides a storage engine for DURUS, a persistence system for the Python programming language.
Some advantages compared to Durus standard FileStorage:
- Startup time is negligible.
- You dont need an in-memory index, so your repository size is only limited by storage space, not RAM.
- If you change existing objects, your storage size doesnt increase.
- If you delete objects, those objects are garbage collected in background, slowly, without performance degradation.
- You can still do a full fast collection, if you need it. While this collection is in progress, Durus still serves objects. From time to time, nevertheless, it can be unresponsible for 2 or 3 seconds, while is doing a checkpointing to be able to free database logging diskspace.
- Garbage collection doesnt increase storage size. Neither RAM usage.
- Garbage collection deletes objects using nondurable transactions, very efficiently. If the collection is aborted abruptly (program or machine crashes), the collection will start again from the beginning. If the GC finishes without problems, that state is durable.
- Any object store in the storage will commit a durable transaction, including all objects released in the background garbage collector, along the way.
- Garbage collection time is proportional to garbage, not repository size.
There are some disadvantages, nevertheless:
- IMPORTANT: This backend uses reference counting to decide when an object is garbage and can be collected. So, if you have cycles in your data structures, you **MUST*BREAK** them before releasing the objects.
- Failing to do that will leak diskspace. It is possible that in a future release we can collect cycles, but try to avoid that pattern.
- Leaking objects will grow the diskspace, but **NO** corruption or malfunction will happen. No other secondary effect.
- Although this code could work on Windows, I havent checked it. Absolutely no garantee!.
- Sometimes this backend can become irresponsible for a couple of seconds. It is busy doing a checkpoint to recycle database logging space. The pause should be sort, nevertheless.
- Dont use this storage backend over NFS, at least you know what is going on.
- Since we are using BerkeleyDB as the backend:
- You should be experienced with BerkeleyDB deployments.
- Beware when updating Python or BerkeleyDB. In particular, BerkeleyDB is known by breaking (but they DOCUMENT!) binary compatibility between versions. In this case, they ALWAYS document the procedure to do a controlled upgrade, so dont worry. But take note of the risk.
- To do a trustable backup, you should follow instructions in BerkeleyDB documentation:
- http://www.sleepycat.com/docs/ref/transapp/reclimit.html
- http://www.sleepycat.com/docs/ref/transapp/archival.html
- http://www.sleepycat.com/docs/utility/db_hotbackup.html
- In Python you can use the standard "bsddb" or the up-to-date "bsddb3" bindings (which will be included in new python versions). This product will try to use always the more recent BerkeleyDB bindings. Be careful about BerkeleyDB version changes when you update the bindings.
- Since BerkeleyDB files are binary structures, a corrupt database can be unrecoverable. Be diligent and careful with your backups.
You can use this product both as a normal (local) filestorage, or a server (remote) storage system, just like the usual Durus FileStorage.
Enhancements:
- Compatibility with Durus 3.7 was added.
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Added: 2007-05-03 License: GPL (GNU General Public License) Price:
907 downloads
Skeleton Engine for MySQL 0.4

Skeleton Engine for MySQL 0.4


Skeleton Engine for MySQL is a full framework to plug in a new storage engine. more>>
Skeleton Engine for MySQL is a full framework to plug in a new storage engine. Comes with prebuild autoconf files, and a full framework to plug in your own design.

The AWS, HTTP, Memcache, Nitro, PBXT, and many other engines were put together from the skeleton engine.

To install, grab a copy of the mysql source code and run this:
./configure --with-mysql=/home/brian/mysql-5.1/ --libdir=/usr/local/lib/mysql/
make install

And then inside of MySQL:

mysql> INSTALL PLUGIN skeleton SONAME libskeleton_engine.so;

mysql> CREATE TABLE `d` (`a` varchar(125), b text, primary key(a)) ENGINE=skeleton DEFAULT
CHARSET=latin1;
Query OK, 0 rows affected (0.01 sec)

You will probably need to edit the Makefile.am in the src/ tree if you want to build on anything other then Linux (and the Makefile assumes that the server was not compiled for debug).
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Added: 2007-07-17 License: BSD License Price:
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