CHANGELOG.md
# Changelog
## Version 1.7.4
- [Fix] Fixed deprecated license type in composer.json file
## Version 1.7.3
- [Fix] Changed file name of coveralls binary used in Travis build
- [Fix] Use older version of symfony/yaml for backward compatibility with PHP 5.6
## Version 1.7.2
- [Fix] ProcessTitle plugin has been disabled on MacOS systems (as on MacOS requires root privileges to change process name)
## Version 1.7.1
- [Improvement] Removed ReactPHP library from ZEUS Memcached Server and replaced it with ZEUS socket server implementation
- [Improvement] Removed ReactPHP library from ZEUS Async Server and replaced it with ZEUS socket server implementation
- [Improvement] Removed ReactPHP library from required packages in Composer configuration
- [Improvement] Various stability and performance improvements in Fifo IPC Adapter (now using ZEUS socket implementation)
- [Improvement] Moved ZEUS socket code to Kernel namespace (as a new Networking layer)
- [Fix] Fixed Async Controller Plugin not honoring join timeout settings (could hang indefinitely on stale socket connection)
- [Fix] Improved detection if client disconnected in ZEUS networking layer (workaround for PHP socket inconsistency)
## Version 1.7.0
- [Feature] New low level, high-speed ZEUS socket server implementation usable by any network-enabled Server Service
- [Improvement] Removed ReactPHP library from ZEUS Web Server and replaced it with ZEUS socket server implementation
- [Improvement] ZEUS Web Server throughput increased by 30% when serving small files (serving more than 24000 requests per second on a reference test server)
- [Improvement] ZEUS Web Server performance increased by up to 300% for large files (now reaching transfers up to 3 Gigabytes per second)
- [Improvement] Improved streaming support in ZEUS Web Server: memory footprint reduced considerably when handling large files
- [Improvement] For performance reasons ZEUS Web Server will not GZIP already compressed content, nor files smaller than 4KB
- [Improvement] ZEUS Web Server is now able to GZIP response streams of infinite size
- [Improvement] Minor documentation and README improvements
## Version 1.6.7
- [Fix] Documentation fix in README.md file regarding incorrect terminal command used to start Async Server Service
- [Improvement] Minor documentation and README improvements
## Version 1.6.6
- [Improvement] Additional metadata in composer.json file
## Version 1.6.5
- [Improvement] Minor code refactoring in ZEUS Web Server + performance improvements
- [Fix] Fix for v1.6.4 performance regression in ZEUS Web/Memcached Servers and the underlying ReactPHP Buffer class
## Version 1.6.4
- [Improvement] Performance tweaks in ZEUS Web Server, service throughput for large files increased by 800% (achieving speed of 900 megabytes per second)
- [Improvement] Minor code refactoring in ZEUS and ReactPHP integration layer
- [Improvement] Documentation update
## Version 1.6.3
- [Improvement] Changed image URLs to absolute in the README file
## Version 1.6.2
- [Improvement] Minor code cleanup in HTTP Server Service
- [Improvement] Created [Mkdocs documentation](http://php.webtutor.pl/zeus/docs/)
- [Improvement] Shortened README file
- [Fix] Added description of "exiting" process status in Server Service status view
## Version 1.6.1
- [Improvement] Major performance improvement in IPC adapters (up to 10x performance increase)
- [Improvement] Lots of code improvements based on static code analysis
- [Fix] Standardized behaviour of disconnect() method in all IPC adapters
## Version 1.6.0
- [Feature] Implemented new Async Server Service (Experimental)
- [Feature] Implemented `async()` ZF3 controller plugin that allows to execute multiple anonymous functions/closures asynchronously
- [Fix] Better handling/reporting of broken services on ZEUS startup
- [Fix] Fixed chunked encoding in ZEUS Web Server
## Version 1.5.2
- [Fix] Fixed bug where HTTP Server returned 400 code when PATCH request contained request body
- [Fix] Fixed Athletic tests for IPC adapters
- [Fix] Fixed typos in CHANGELOG file
## Version 1.5.1
- [Feature] Implemented `SharedMemoryAdapter` for IPC
- [Feature] Implemented additional methods enumerating IPC adapter capabilities, such as message size limit or queue capacity
- [Feature] Added `connect()` and `isConnected()` methods to the IPC adapters.
- [Feature] Added `& $isSuccess` parameter to `receive()` method in IPC adapters.
- [Fix] Fixed message indexing in a `ApcAdapter` IPC queue
- [Improvement] Major performance tweaks introduced to the most of IPC adapters (up to 300% performance gain)
- [Improvement] Implemented lazy loading of Server Services
- [Improvement] Improved error handling and parameter validation in IPC adapters
- [Improvement] Added Athletic benchmarks for IPC adapters.
## Version 1.5.0
- [Feature] Added plugin support to ZEUS Server Service Manager
- [Feature] Added EventManager to ZEUS Server Service Manager
- [Feature] Introduced `Zeus\ServerService\ManagerEvent` to ZEUS Server Service Manager
- [Fix] Fixed Memcached `cas` command not returning `NOT_FOUND` error when key was invalid
- [Improvement] Minor performance tweaks introduced to Memcached Server Service
- [Improvement] Major refactoring of Zeus Controller and Server Service Manager code
- [Improvement] Documentation improvements and enhancements
- [Improvement] Test improvements and fixes
- [Improvement] Added first set of Athletic benchmarks for Memcached and HTTP Server Services.
## Version 1.4.1
- [Feature] Added plugin support to ZEUS Scheduler
- [Feature] Implemented two plugins: `ProcessTitle` and `DropPrivileges`
- [Improvement] Test improvements and fixes
## Version 1.4.0
- [Feature] Added new Memcache Server Service with `zend-cache` storage adapters support.
- [Fix] Major performance regression fix for ZEUS Web Server (bug introduced in version 1.3.6)
- [Improvement] Documentation improvements and enhancements
## Version 1.3.7
- [Fix] Various fixes to ZEUS Web Server and Scheduler configuration classes based on static code analysis
## Version 1.3.6
- [Fix] Scheduler ignored custom configuration and used default `LruDiscipline` exclusively
- [Fix] Typo in constructor's name of ProcessTitle class, method removed as it was never executed.
- [Fix] Due to broken gzcompress() function in Facebook HHVM, ZEUS Web Server will now use `deflate` rather than `gzip` to compress HTTP responses
- [Improvement] Lots of code improvements based on static code analysis, minor performance tweaks
- [Improvement] Better handling of runtime exceptions in ZEUS Web Server
- [Improvement] Changelog extracted from the main README file
## Version 1.3.5
- [Feature] Added `stop` and `stop <service>` CLI commands to ZEUS
- [Feature] Added various sanity checks to IPC adapters
- [Feature] Application exists with appropriate error code when it detects that all of its Server Services have been shut-down externally
## Version 1.3.4
- [Feature] Implemented Scheduler Disciplines functionality
- [Feature] Extracted LRU Discipline from Scheduler core
- [Fix] Scheduler was too aggressive in its calculations of number of spare processes to create
- [Fix] Documentation fixes (added missing namespaces in configuration examples)
- [Tests improvements] Improved code coverage
## Version 1.3.3
- [Tests improvements] Improved code coverage
- [Improvement] Documentation improvements and enhancements
## Version 1.3.2
- [Fix] Quickfix for potential Task Pool exhaustion issue when using slow HTTP keep-alive connections
- [Fix] POSIX Process MPM now uses `SchedulerEvent` just like the rest of ZEUS Scheduler's code
- [Fix] Scheduler Status View console command now properly shows status of Processes in TERMINATED state
## Version 1.3.1
- [Fix] Configured Travis builds to not to use phpunit 6.x
## Version 1.3.0
- [Feature] Heavy refactoring of `Scheduler` events
- [Feature] Improved `Process` and `Scheduler` life cycle.
- [Feature] New `SchedulerEvent` introduced.
- [Feature] Now its possible to provide text description along the process status
- [Feature] Console Server Service status command shows extended status descriptions
- [Feature] From now on each HTTP keep-alive request handled by ZEUS Web Server will reduce the TTL of entire process.
## Version 1.2.3
- [Feature] Introduced `ON_PROCESS_CREATED` event to `Scheduler`
- [Feature] Now its possible to intercept `ON_SCHEDULER_STOP` event before `exit()`
- [Fix] Fixed various `ON_SCHEDULER_STOP` event triggering inconsistencies
- [Fix] Added `ext-pcntl` to Composer as required PHP extension
- [Tests improvements] Improved code coverage + dead code removed
## Version 1.2.2
- [Feature] Added `StreamLogFormatter` and basic strategy that chooses between `StreamLogFormatter` and `ConsoleLogFormatter` depending on stream type.
- [Fix] Added `zendframework/zend-console` as required Composer package
- [Tests improvements] Improved code coverage
## Version 1.2.1
- [Fix] Renamed status names reported by a Service Status command to be inline with those reported by Proces Title functionality
## Version 1.2.0
- [Feature] Added new commandline options `index.php zeus status` and `index.php zeus status <service_name>`
- [Fix] Fixed Scheduler's `ON_SERVER_START` and `ON_SCHEDULER_START` event triggering inconsistency
- [Fix] Refactor of `FixedCollection` iterator code for improved HHVM compatibility
- [Fix] Fixed request counter in ZEUS Web Server
- [Tests improvements] Improved code coverage
## Version 1.1.8
- [Feature] Added MIME type detection to ZEUS Web Server's `StaticFileDispatcher`
- [Tests improvements] Code coverage for `StaticFileDispatcher`
- [Fix] ZEUS Web Server returned 404 HTTP status code instead of 400 when attempting to list a directory
- [Fix] Fixed compatibility between `FixedCollection` and HHVM
- [Fix] Resolved issue wih invalid handling of first element in `FixedCollection`
## Version 1.1.7
- [Fix] Fixed read/write indexing in `ApcAdapter`
- [Fix] Performance fix in HTTP hosts cache (ZEUS Web Server)
- [Tests improvements] Code coverage tests moved from PHP 5.6 to 7.1
- [Tests improvements] Enabled APCu tests in Travis
## Version 1.1.6
- [Fix] Various fixes for IpcAdapters: `MsgAdapter`, `ApcAdapter`, `FifoAdapter`
- [Fix] Fixed permissions of some PHP files
## Version 1.1.5
- [Feature] New event `Zeus\Kernel\ProcessManager\SchedulerEvent::PROCESS_EXIT` introduced
- [Feature] Improved console help
- [Unclassified] Dead code removal, README tweaks
- [Tests improvements] More `Scheduler` tests added
## Version 1.1.4
- [Unit tests fix] Fix for division by zero error in PHP 5.6 unit tests in `ProcessTitle` class
- [Tests improvements] Added test class for Scheduler, increased tests code coverage
- [Fix] Fixed PHP 5.6 compatibility in `Scheduler` garbage collection mechanism
## Version 1.1.3
- [Feature] Enabled travis build and improved phpunit configuration
- [Unit tests fix] Fix for failing phpunit tests due to the recent changes in ZEUS Web Server classes and interfaces
- [Security fix] Fixed ZEUS Web Server logger throwing fatal exception and leaving open connection when HTTP request was corrupted
- [Unclassified] Various `composer.json` fixes and tweaks
## Version 1.1.2
- [Composer fix] Corrected PSR4 installation path in `composer.json` file
- [Documentation] Updated road-map
## Version 1.1.1
- [Composer fix] Specified ZEUS license type in `composer.json`
- [Documentation fix] Fixed command syntax that installs ZEUS via Composer
## Version 1.1.0
- [Performance fix] ZEUS Web Server uses a custom React PHP `Buffer` implementation to overcome severe `fwrite` performance penalty when serving large files through a keep-alive connection
- [Security fix] ZEUS Web Server counts the number of keep-alive requests and closes connection when the requests limit is reached.
- [Feature] Implemented `IpcLoggerInterface` and `IpcLoggerWriter` to send logs through IPC to a Scheduler which will act as as a logger sink.
- [Feature] Service name is now reported by a built-in logger processor
## Version 1.0.0
- Initial revision