From Wikipedia, the free encyclopedia:
Anaximander was a pre-Socratic Greek philosopher who lived in Miletus,[3] a city of Ionia (in modern-day Turkey). [...] He was an early proponent of science and tried to observe and explain different aspects of the universe, with a particular interest in its origins, claiming that nature is ruled by laws, just like human societies, and anything that disturbs the balance of nature does not last long.
This release unlocks even more performance with a brand new load-balancing algorithm. Without any configuration, reads will be done on the nearest, most available replica, resulting is better network usage and reduced latency.
We are also pleased to announce a brand new PHP API. Millions of websites accross the world can now benefit from quasardb unrivaled performance.
This release is fully compatible with the 1.1.x “Pythagoras” line.
- Protocol version: 14
- New API: PHP
- Reads are now automatically balanced, taking distance and load into account
- When no licence is available, quasardb now runs in “free” mode for evaluation purposes
- Fixed several glitches in the administration console and improved overall responsiveness
- Fixed a condition where an invalid time stamp could be displayed in the log file
- Web bridge: added an error message when the listening port isn’t available
The release features significant improvements to the administration console and now persists the statistics.
This release is fully compatible with 1.1.0, 1.1.1, 1.1.2, 1.1.3 and 1.1.4.
- Protocol version: 14
- Major improvements to the administration console: more graphs, history search, more information...
- Statistics are now persisted within quasardb
- Fixed a retro-compatibility issue where 1.1.3 clients requests could be misunderstood by 1.1.4+ servers
- Fixed a reconciliation issue where a partitioned node rejoining a cluster could not correctly propagate an update
- The shell now displays a meaningful error message when no remote daemon is available
- All binaries and all platforms except FreeBSD now statically link against the libc++ library for convenience
- A warning is now emitted when a node reaches 90% of its quota
- Java API: the multi-connect feature is now supported
- FreeBSD installations now require FreeBSD 10
- Windows: upgraded to Visual Studio 2013 Update 4.
- FreeBSD: upgraded to clang 3.5
- Upgraded to Intel TBB 4.2 Update 5
- Upgraded to Boost 1.57.0
- Upgraded to LevelDB 1.18
This release features a brand new .NET API and various improvements to the administration interface.
This release is fully compatible with 1.1.0, 1.1.1, 1.1.2 and 1.1.3.
- Protocol version: 14
- Reduced the dependencies of all binaries through static linking on all platforms
- .NET API: Fully functionnal .NET 4.0 API
- Administration console: added more information, fixed numerous glitches and greatly reduced memory usage
- Daemon: greatly reduced inter-node traffic in a stable cluster
- Shell: greatly improved online help
- Linux: upgraded to gcc 4.8.2
- Upgraded to Intel TBB 4.2 Update 4
- Upgraded to LevelDB 1.17
This maintenance release features a brand new administration interface, enabling users to monitor small to large clusters in just a couple of clicks!
This release is fully compatible with 1.1.0, 1.1.1 and 1.1.2.
- Protocol version: 14
- Administration console: brand new administration console with many exciting features
- Daemon and web bridge: support for file based configuration
- Daemon: fixed a race condition where an error could be returned to successful long standing batch operations
- Web bridge: added CPU, disk and memory usage information
- Java API: it is now possible to specify an expiry for all write operations
- Comparison tool: fixed progress display
- Upgraded to LevelDB 1.16
This maintenance release focuses on disk usage control. It is now possible to limit the persisted size. When the limit is reached, any operation which would result in a size increase will be aborted and an error will be returned.
This release is fully compatible with 1.1.0 and 1.1.1.
- Protocol version: 14
- Daemon: added option to limit the persisted size
- Daemon: fixed long log paths parsing
- Web bridge: added network usage information
- Comparison tool: new “put only” command
- Comparison tool: added progress bar
- Shell: fixed space related parsing bug
- Upgraded to LevelDB 1.15
This maintenance release comes with many new features and performance improvements. It is fully compatible with release 1.1.0.
- Protocol version: 14
- Daemon: various optimizations to reduce latency
- Comparison tool: support for multithreaded benchmarks
- C/C++ API: Added client-side logging
- C++ API: Batch and prefix operations can now be chained
- Java API: Support for batch operations
- Java API: Support for expiry
- Python API: Support for batch operations
- Upgraded to LevelDB 1.14
- Upgraded to TBB 4.2
- Upgraded to Boost 1.55.0
From Wikipedia, the free encyclopedia:
Pythagoras of Samos was an Ionian Greek philosopher, mathematician, and founder of the religious movement called Pythagoreanism. [...] Pythagoras made influential contributions to philosophy and religious teaching in the late 6th century BC. He is often revered as a great mathematician, mystic and scientist, but he is best known for the Pythagorean theorem which bears his name.
This release brings major new features. quasardb now support prefix based research, configurable expiration and batch operations. These features are brought to you without compromising on performance or reliability.
- Protocol version: 14
- API: Support for prefix-based research
- API: Support for configurable expiration
- API: Support for batch operations (C/C++ only)
- API: Deprecated streaming API
- Upgraded to LevelDB 1.13
This version is 100 % compatible with quasardb 1.0.1 “Zeno” and only includes important fixes.
- Protocol version: 13
- Windows API: reliability fix The unability to securely generate an unique path could result in an ungraceful failure of qdb_open
- Daemon: Clarified many error messages
- Daemon, web bridge: Daemonization command switch on UNIXes
- Daemon, web bridge: The HUP signal is now ignored on UNIXes
- FreeBSD: upgraded to Clang 3.3
- Upgraded to Boost 1.54.0
This maintenance release includes an important security fix.
No new functionnality has been added.
- Protocol version: 13
- Daemon: security fix Carefully crafted messages could cause the server to allocate an excessive amount of memory resulting in a denial of service
- Console: Fixed glitches introduced in 1.0.0
- API: The reported persisted size is now much more accurate
- Daemon: Greatly improved performance for all status APIs
- Daemon: Reworded some network error messages for clarity
- Daemon: Minor performance improvement (less than 5%) for requests smaller than 1 KiB
- Upgraded to Visual Studio 2012 Update 3
- Upgraded to TBB 4.1 update 4
- Upgraded to LevelDB 1.12
From Wikipedia, the free encyclopedia:
Zeno of Citium was the founder of the Stoic school of philosophy, which he taught in Athens from about 300 BC. [...] Stoicism laid great emphasis on goodness and peace of mind gained from living a life of Virtue in accordance with Nature.
After years of research and developement it is an overwhelming pleasure to annonce the availability of version 1.0.0. The last eighteen months have been dedicated to the everlasting quest of performance and stability. It is now time for the version number to reflect the level of quality and trustworthiness that quasardb delivers.
A big thank you to all our families, friends, partners and customers for their continued support that helped make quasardb a reality.
- Protocol version: 12
- API: New atomical conditional remove (remove_if) operation
- API: New atomical get and remove (get_remove) operation
- API: Can now iterate on entries
- Daemon: Replica do not stay hot in memory to reduce memory usage
- Daemon: Timeout for inter-node communications is now properly accounted on all platforms
- Daemon: Fixed a race condition where a session could be freed twice during shutdown
- Upgraded to TBB 4.1 update 3
- Upgraded to LevelDB 1.10
- API: Can now retrieve a remote node’s configuration in JSON format
- API: Can now retrieve a remote node’s topology in JSON format
- API: Can now remotely stop a node
- C/C++ API: Added a qdb_e_uninitialized value to the error enumeration
- Python API: Improved documentation and added examples
- Web bridge: Richer global status information
- Web bridge: More verbose logging
- Daemon: In case of a critical error a detailled status will be dumped to a separate file on disk (in addition to previously existing log errors)
- Daemon: Stabilization is one order of magnitude faster in case of failure
- Daemon: Improved eviction speed in all cases
- Daemon: The daemon now exits right away if the listening port is unavailable
- Daemon: Better and more coherent network log messages
- Daemon: A node that was started with incoherent parameters will now be forced out of the ring
- Daemon: Fixed ignored remove_all requests issue
- FreeBSD: upgraded to clang 3.2 and libc++ 1
- Upgraded to Boost 1.53.0
- New C++ API!
- C and Java API: Added qdb_error to translate an error code into a meaningful message
- C/C++ API: Can connect to multiple remote hosts at a time for increased client-side resilience
- Java API: Added support for get_update and compare_and_swap operations
- Console: Now display statistics for get_update and compare_and_swap operations
- Daemon: Fixed invalid replication parameter logging
- Daemon: Fixed invalid total size reporting
- Daemon: Improved replication factor documentation
- Now officially named quasardb!
- Daemon: Minimized thread switching to reduce latency
- Various minor optimizations and improvements
- Windows: Upgraded to Visual Studio 2012
- Upgraded to Boost 1.52.0
- Upgraded to TBB 4.1 SP1
- Upgraded to LevelDB 1.9
- Daemon: Integrated licensing mechanism
- Daemon: Fixed invalid statistics update
- Upgraded to Boost 1.51.0
- Daemon: Automatic, integrated and distributed replication up to 4 copies
- Daemon: Support for global configuration
- Daemon: Fixed bug that could cause a connection reset between two nodes if they were using a half-duplex channel
- Benchmarking tool: Added Redis support
- Client API: Fixed bug that prevented the 32-bit Windows API to add entries larger than 4 GiB
- Java API: Greatly improved performances, up to 100%!
- Greatly improved the documentation
- Upgraded to Boost 1.50.0
- Known bug: the eviction, pagein and size counts reported in the administration console are invalid
- Client API: New streaming API (C only)
- Client API: New compare and swap operation (C only)
- Client API: “remove all” is no longer experimental
- Daemon: Faster lookup on clusters with more than 20 nodes
- Daemon: Faster stabilization on clusters with more than 5 nodes
- Daemon: Automatically detects the best memory eviction threshold (can be overriden)
- Daemon: changed the default port from 5909 to 2836 (can be overriden)
- Java API: Fixed invalid method name (delete instead of remove)
- Upgraded to LevelDB 1.5
- Client API: Major performance increase (up to 100%) for small entries (below 1 KiB)
- Client API: Added more error codes
- Client API: Added status query function
- Client API: Added new, atomic, “get and update” function
- Client API: Added experimental “remove all” function
- Daemon: Greatly improved scalability for machines with more than 4 physical cores
- Daemon: Removed obsolete options
- Daemon: Improved Windows console logging performance
- FreeBSD: Now requires FreeBSD 9.0 or later
- FreeBSD: switched from gcc to Clang
- Upgraded to LevelDB 1.4
- Upgraded to Boost 1.49.0
- Upgraded to TBB 4.0 SP4
- Python API: Brand new Python API!
- Daemon: new “transient” option
- Daemon: Improved memory management
- Daemon: Improved performance for large entries
- Daemon: Reduced latency
- Upgraded LevelDB
- Windows: Digital signatures now include a timestamp.
- Web bridge: Improved the internal data exchange format.
- Daemon: When exiting under heavy load, the daemon could deadlock.
- Daemon: Slight performance increase.
- Client API: Improved performance on unreliable networks.
- Upgraded LevelDB
- Upgraded to TBB 4.0 SP1
- Java API: Major rework, better and easier than before!
- Daemon: Added an icon in the Windows binary.
- Daemon: Properly account the idle session parameter.
- Daemon: Exit with an appropriate error message when the listening port is unavailable.
- Client API: Made the connection process more resilient.
- Upgraded LevelDB
- Peer-to-peer network distribution
- Web bridge with JSON/JSONP interfaces
- Java API
- New persistence layer based on LevelDB
- Lightweight HTML 5 monitoring console
- Reduced overall memory load
- Improved performance by 10-20 %
- Removed legacy code and API
- Documentation!
- The quasardb shell now handles binary input and output
- Upgraded Linux and FreeBSD compilers to gcc 4.6.1
- Upgraded to Boost 1.47.0
- Increased reliability
- Major performance improvements for entries larger than 50 MiB
- More verbose logging (if requested)
- Reduced latency under extreme load
- Reduced memory footprint
- fix: The 0.4.1 Linux API could not be linked to due to a misconfiguration on our build machine
- Multiplatform Python API package with installer
- Fixed FreeBSD invalid rpath
- qdbsh can now process standard input and output
- Python API
- Improved server network code
- API and server are now available as two distinct packages
- Fixed file logging date format
- Installer for Windows version
- Upgraded to Boost 1.46.1
- Upgraded TBB to version 3.0 Update 6
- Upgraded Windows compiler to Visual Studio 2010 SP1
- Upgraded Linux and FreeBSD compilers to gcc 4.6.0
- Windows binaries are now digitally signed.
- High-performance slab allocator is now used for logging.
- Fixed a minor memory leak.
- The Linux and FreeBSD binaries now have a rpath to automatically load libraries present in quasardb’s lib subdirectory.
- Upgraded TBB to version 3.0 Update 5
- Asynchronous standalone TCP (IPv4 and IPv6) server
- Fast monte carlo eviction
- New high-performance slab memory allocator
- Shell client
- New API
- May contain up to 1% of awesomeness