Mercurial > hg > blitz_stable
view ChangeLog @ 9:77db38eb3042
Remove some dead code (Dave Brosius)
author | Dan Creswell <dan.creswell@gmail.com> |
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date | Sat, 23 May 2009 11:28:26 +0100 |
parents | 3dc0c5604566 |
children | a77f0a9ed93c |
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2008-07-03 Dan Creswell <dan@dancres.org> * Released 2.0fcs 2008-03-09 Dan Creswell <dan@dancres.org> * Updated to Db 3.2.74 * Updated backport-util-concurrent - includes support for JDK 6 * Released 2.0-rc4 2008-03-05 Dan Creswell <dan@dancres.org> * Improved EventGenerator registration concurrency 2008-02-24 Dan Creswell <dan@dancres.org> * Added an option (syncNotifyOnWrite) to enable synchronous event processing in cases where deterministic behaviour is required for *IfExists - note this reduces performance. 2008-02-02 Dan Creswell <dan@dancres.org> * Fix a false warning of schema conflicts in hierarchical matching situations. * Removed an errant System.err.println() in ExistsFactory 2007-12-31 Dan Creswell <dan@dancres.org> * Released 2.0-rc2 2007-12-23 Dan Creswell <dan@dancres.org> * Updated to Db 3.2.68 2007-11-14 Dan Creswell <dan@dancres.org> * Fix incorrect notify clause in FifoSearchVisitorImpl which generates an IllegalMonitorStateException 2007-11-04 Dan Creswell <dan@dancres.org> * Revised ThreadStat to not include System threads in the count * Fixed a problem with *Exists not exiting at the point where existing conflicts have been resolved. 2007-09-23 Dan Creswell <dan@dancres.org> * Updated MonitorStats to accept a loop-time in seconds. Zero dumps stats once, otherwise every loop-time seconds. 2007-08-31 Dan Creswell <dan@dancres.org> * Fix take accounting problem in bulk take leading to negative counts 2007-08-30 Dan Creswell <dan@dancres.org> * Added tool to selectively reset lookup settings from a configuration file 2007-08-12 Dan Creswell <dan@dancres.org> * Released 2.0-rc1 2007-08-04 Dan Creswell <dan@dancres.org> * Revised some default logger settings * Added a ThreadStat * Added support for specifying Db cache size in kilo, mega or giga bytes. (original patch provided by Roshan Sequeira modified by Dan) 2007-05-20 Dan Creswell <dan@dancres.org> * Update to Db 3.2.23 * Released 2.0beta 2007-05-08 Dan Creswell <dan@dancres.org> * Fix a problem with CacheIndexer initialization in RootStorage which could break null templates on contents() (as used by Dashboard amongst other things). 2007-05-07 Dan Creswell <dan@dancres.org> * Make transaction exception thrown when transactions are active during snapshot more explicit * Add StatsDumper to regularly dump all active stats to console log * Add stats for internal queues * Removed several independent debug configuration variables that have been superceeded by proper stats. * Released 2.0alpha4 2007-04-30 Dan Creswell <dan@dancres.org> * Update documentation to cover loopback transaction manager 2007-04-23 Dan Creswell <dan@dancres.org> * Transaction end is now signalled via the event queue * Fix bug where entry repository might be incorrectly initialized during recovery 2007-04-22 Dan Creswell <dan@dancres.org> * Database cache size should be a long * Revert most of backport-util-concurrent changes due to race conditions * TxnState now uses synchronized not a heavyweight Mutex * Fix bug where transactions weren't finalized on prepareAndCommit 2007-03-13 Dan Creswell <dan@dancres.org> * Added stat to track missed reads/takes 2007-03-09 Dan Creswell <dan@dancres.org> * Released 2.0alpha3 2007-03-05 Dan Creswell <dan@dancres.org> * Fixup dashboard scripts in installer to work with new backport util-concurrent libraries 2007-02-28 Dan Creswell <dan@dancres.org> * Fix a race condition in the lazy instantiation of EntryRepositories * Make BlockingOps stat work again after removing SearchTasks infrastructure * Add a stat to track number of listeners on notify.EventQueue * Fix EventQueue leak in bulk take 2007-02-07 Dan Creswell <dan@dancres.org> * Revised blocking operation implementations to use notify core * Port to the backport util-concurrent to take advantage of JDK 5's concurrency improvements whilst being backward compatible to JDK 1.4 * Added a prototype nio transport based on Apache Mina * Removed old experimental transport * Fixes for installer scripts where spaces are in the insane default JDK install path on Windows. * Improved speed of MangledEntry serialization for faster transport and storage * Released 2.0alpha2 2007-01-01 Dan Creswell <dan@dancres.org> * Released 2.0alpha 2006-12-28 Dan Creswell <dan@dancres.org> * Make blocking operation dispatch faster and less costly 2006-12-27 Dan Creswell <dan@dancres.org> * Implement ColocatedAgent support * Implement additional statistics 2006-12-12 Dan Creswell <dan@dancres.org> * Modify DumpRegistry to support more lookup location options * Update to JE 3.2.13 2006-11-30 Dan Creswell <dan@dancres.org> * Fix race conditions in cache indexing * Reduce cache indexer stack to one 2006-09-29 Dan Creswell <dan@dancres.org> * Downgraded to 2.1.30 - temporary workaround for issue in 3.0.12 * Released 1.29 2006-09-26 Dan Creswell <dan@dancres.org> * Released 1.27 2006-09-19 Dan Creswell <dan@dancres.org> * Fix a problem with active lease reaping not purging all relevant entry's. 2006-08-18 Dan Creswell <dan@dancres.org> * Remove old code for logging failed searches enabled by logDebug * Rename logDebug to logCounts * Fix a problem where the WriteDaemon was deemed inactive too often leading to excessive thread creation * Updated to Db/Java 3.0.12 2006-08-07 Dan Creswell <dan@dancres.org> * Add support for logging details of failed searches 2006-07-14 Dan Creswell <dan@dancres.org> * Add a -Dforce=true option to SyncAndShutdown to force shutdown of blitz in face of active transactions. * Fix a problem where remote calls may be refused due to cleanup failure in face of active transactions * Fix potential ConcurrentModificationException in TxnManagerState.abortAll * Released 1.26 2006-07-01 Dan Creswell <dan@dancres.org> * Increase log levels on event sending code to assist in debugging issues with notify. 2006-05-24 Dan Creswell <dan@dancres.org> * Fix a problem in EntryViewImpl which could lead to duplicate Entry's returned by contents * Released 1.25 2006-05-23 Dan Creswell <dan@dancres.org> * Tweak logger output for WriteQueue stats * Add a headless option to the installer (thanks to Robert Barnebey for testing duties) * Revised configuration defaults for installer to be in line with current preferred settings * Make TimeBarrier mode checkpoint at flushes to improve database utilization and performance 2006-03-27 Dan Creswell <dan@dancres.org> * Added logging to Annotating streams to allow better debugging of codebase related issues. 2006-03-03 Dan Creswell <dan@dancres.org> * Fix phoenix configuration in installer to include jsk-dl.jar as part of codebase * Released 1.24 2006-02-22 Dan Creswell <dan@dancres.org> * Fix ServiceLocator unicast lookup to correctly assert a security manager otherwise code downloading is broken. * Fix dashboard scripts to use Jini 2.1 jars only * Released 1.23 2006-02-19 Dan Creswell <dan@dancres.org> * Modify LockReleaseCallback to use WeakReference for SearchVisitors to reduce memory footprint * Released 1.22 2006-02-15 Dan Creswell <dan@dancres.org> * Upgrade to Db 2.1.30 2006-02-14 Dan Creswell <dan@dancres.org> * Fix EventGeneratorImpl/VisbilityImpl.ping() to not hold a lock across the sequence number log which can cause deadlock if event queue bounding is enabled. * Released 1.22-pre1 (limited circulation) 2006-02-10 Dan Creswell <dan@dancres.org> * Fix up Rio config to use Jini 2.1 .jars 2006-02-02 Dan Creswell <dan@dancres.org> * Rewrite the contents() core. It was just way too complex, had too much retro-fitting and there have been some complaints of duplicates which will be down to a hole in the overly complex locking scheme of the old version. 2006-02-01 Dan Creswell <dan@dancres.org> * Make sure we check for expired transactions in loopback mgr at time of commit or abort. * Released 1.21 2006-01-30 Dan Creswell <dan@dancres.org> * Fix incorrect import in lease handlers configuration * Released 1.21-pre4 2006-01-29 Dan Creswell <dan@dancres.org> * Fix deadlock which can occur when an operation attempts to add state to TxnState whilst it is concurrently being resolved. These operations should receive an exception indicating a user-programming error but instead cause deadlock. * Fix bug where we won't kill off associated notify's if we abort a non-null transaction. 2006-01-26 Dan Creswell <dan@dancres.org> * Make sure we close RandomAccessFiles used in logging to prevent some OS'en running out of file handles (some seem to cleanup on their own). * Released 1.21-pre3 (limited circulation) 2006-01-19 Dan Creswell <dan@dancres.org> * Add support for a loopback transaction manager which can be enabled by defining it's Exporter using the configuration variable loopbackTxnExporter. Note the manager can only be used to co-ordinate transactions against the blitz instance that it shares the JVM with. It cannot co-ordinate multiple and/or remote participants such as other Blitz instances [EXPERIMENTAL - USE AT YOUR PERIL] 2006-01-12 Dan Creswell <dan@dancres.org> * Fix bug in BlitzServiceImpl.newView where for JavaSpace05 compatibility we should only hold locks if the transaction is non-null. Do the same for LocalSpace. Thanks to Simon Vicary for the bug report and unit test * Released 1.21-pre2 2006-01-09 Dan Creswell <dan@dancres.org> * Remove unnecessary BitIndex copy from BitmapIndexer - BitIndex's are thread safe so we can iterate without copying. 2006-01-07 Dan Creswell <dan@dancres.org> * Revise transaction abort to spot situations where we needn't write an entry to disk even though we have operations. This optimization is triggered when the associated transaction is active and thus no records have been written to disk such that undo can be done entirely in memory. * Fix an unlikely race condition where transaction operations could occur after a decision had been taken to optimize and not emit a log record to disk. These additional operations would invalidate the decision due to the changes in state wrought on a transaction. 2006-01-05 Dan Creswell <dan@dancres.org> * For write and write(Collection) have proxy populate stub and uuid fields to save on network traffic and serialization costs. 2006-01-04 Dan Creswell <dan@dancres.org> * Remove offset from MangledField and use the loop index server-side to derive it. 2006-01-03 Dan Creswell <dan@dancres.org> * Add support to experimental transport for transaction participant. * Fixed a socket leak in the experimental transport 2005-12-29 Dan Creswell <dan@dancres.org> * Fix experimental transport to do readIfExists and takeIfExists correctly rather than treat them like their normal brethren. 2005-12-20 Dan Creswell <dan@dancres.org> * Released 1.20 2005-12-09 Dan Creswell <dan@dancres.org> * Make Blitz's internal view generation for contents methods strictly apply the entry limit so as to cap memory usage. 2005-12-08 Dan Creswell <dan@dancres.org> * Fix up nio experimental transport to allow clients to exit (convert Txer to use of Daemon threads). 2005-12-07 Dan Creswell <dan@dancres.org> * Add updateContents configuration variable which can be used to disable dynamic updating of contents views - useful for memory consumption control. 2005-12-03 Dan Creswell <dan@dancres.org> * Fixed deadlock when checkpointing happens concurrently with creation of a store by EntryReposFactory * Released 1.19 2005-11-26 Dan Creswell <dan@dancres.org> * Make LocalSpace support JavaSpace05 and leases and proper RemoteEvent setup * Updated documentation to make memory configuration information more obvious. * Released 1.18 2005-11-25 Dan Creswell <dan@dancres.org> * More JINI 2.1 documentation tweaks * Fix preferred-list problems causing conflicts * Remove dependence on jini-ext.jar * Update service-ui documentation for JINI 2.1 * Separate preferred list generation for blitz-dl.jar into separate target * Released 1.17 2005-11-21 Dan Creswell <dan@dancres.org> * Optimize contents matching to stop doing hierarchy matching once one of the template set has hit. 2005-11-20 Dan Creswell <dan@dancres.org> * Integrate experimental nio transport. 2005-11-02 Dan Creswell <dan@dancres.org> * Fix a problem where TxnLock failed to correctly handle a null callback * Fix a problem where duplicate Entry's could be returned from an EntryView in presence of concurrent writes (affects contents()) * Released 1.16 2005-11-01 Dan Creswell <dan@dancres.org> * Fix StatsBoard::getStats() deadlock - thanks to Sirma Group for report and suggested fix. * Fix a bug in contents() where the view is dynamically updated with inappropriate Entry's * Update Db/Java to 2.0.90 * Released 1.15 2005-10-27 Dan Creswell <dan@dancres.org> * Make sure WriteEntryOpInfo only dirties at recovery if it's entry wasn't on disk * Fix a recovery issue where the pristine state of a write was inserted into the cache rather than the up-to-date state found on disk * Released 1.14 2005-10-20 Dan Creswell <dan@dancres.org> * Eliminate the additional roundtrip incurred downloading the first chunk of EntryChits for use with JavaSpaceAdmin/JavaSpace05::contents * Released 1.13 2005-10-19 Dan Creswell <dan@dancres.org> * Fix problem where we're not holding locks when doing JavaSpace05::contents() 2005-10-17 Dan Creswell <dan@dancres.org> * Implement intelligent readahead based on use or not of snapshot method 2005-10-07 Dan Creswell <dan@dancres.org> * Make sure Lifecycle.unregister is passed the correct reference * Change debugging logging down to levels of FINE or lower * Add multiplexing to nio test transport * Released 1.13-pre9 2005-09-26 Dan Creswell <dan@dancres.org> * Added some codebase caching into AnnotatingObjectOutputStream because the RMIClassLoader infrastructure can sometimes trigger opening of socket to codebase for each call to get a codebase for a class. 2005-09-16 Dan Creswell <dan@dancres.org> * Removed the aging support from ArcCache because it penalizes concurrent take support. 2005-09-15 Dan Creswell <dan@dancres.org> * Implemented nio-based test transport * Fixed LeaseImpl to be public for nio test transport 2005-09-11 Dan Creswell <dan@dancres.org> * Fixed installer to work with JINI 2.1 * Released 1.13-pre8 2005-09-10 Dan Creswell <dan@dancres.org> * Revised iteration core to support leases and optional transaction locking * Revised EntryViewAdmin to support leasing and optional transaction locking * Merged tests for bulk ops, contents and visibility * Created configs for JINI 2.1 and 2.0 * Add preferred-list to dljar target in build.xml * Released 1.13-pre7 2005-09-09 Dan Creswell <dan@dancres.org> * Added bulk take and write to SpaceImpl * Added visibility/availability to SpaceImpl * Added remote interfaces for JavaSpace05 support 2005-09-06 Dan Creswell <dan@dancres.org> * Fix race condition which could cause TxnPinger to abort a transaction that was just committed. * Internally Released 1.13-pre6 2005-09-02 Dan Creswell <dan@dancres.org> * Make FindEntryOpInfo aggressively sync Entry deletion in cases where the EntrySleeveImpl is on disk. This ensures better performance in cases where we have to hit disk often such as swapping, cold-start or FIFO. * Released 1.13-pre5 * Fix bug where transaction pinger might encounter UnknownTransactionException for a transaction just committed and then succeed with an abort thus erroneously undoing the transaction. 2005-08-30 Dan Creswell <dan@dancres.org> * Refactor oid package to remove external dependency on UIDImpl. Masking this makes it easier to introduce a new oid type as required for fault tolerance. * Internally Released 1.13-pre4 2005-08-24 Dan Creswell <dan@dancres.org> * Added optional txn status checker which will detect transaction manager death and abort associated transactions. Configured with variable txnPingInterval as an interval in ms. * Display the codebase URL for a written Entry when dumping persistent logs 2005-08-10 Dan Creswell <dan@dancres.org> * Clean up some documentation re: JINI 2.1 * Update activation configuration * Released 1.13-pre3 2005-08-05 Dan Creswell <dan@dancres.org> * Revise persistent logger to use RandomAccessFile in sync mode which is slightly faster than forced sync's via Channel. Note that buffer size for the logger becomes a significant tuning factor and should be sized to hold all concurrent transaction state at each log write. 2005-07-22 Dan Creswell <dan@dancres.org> * Added support for logging failed takes and reads for use with log dump tool. * Added versioning to Blitz log files * Added support for upgrade from 1.12 or less * Removed LoggableAction interface and support. Converted all code to use of TxnOp which reduces duplication, increases generic code and prepares the way for fault tolerance (fault tolerance preparation). * Associate lease renewals against Entry's under a write lock with the transaction holding the lock rather than emitting them as independent records (fault tolerance preparation). 2005-07-21 Dan Creswell <dan@dancres.org> * Add support for emitting user data as part of a checkpoint snapshot * Add support for logging instance count summaries to checkpoint snapshots and into the log files for use by log dumping tool and associated analyzers. * Added a rudimentary command-line based monitoring tool which some may prefer to dashboard 2005-07-19 Dan Creswell <dan@dancres.org> * Added IOStat to provide statistics from the WriteDaemon. * Fix bug where FIFOAllocator might not correctly initialize. * Default write throttle to off. * Added documentation for log dumping tool * Released 1.12 2005-07-18 Dan Creswell <dan@dancres.org> * Reduce span of Db Txns in SpaceImpl * Released 1.11 2005-07-17 Dan Creswell <dan@dancres.org> * Make DumpEntries correctly initialize Disk before attempting to scan. * Fix a problem where CacheIndexers weren't always notified of Entry deletions leading to poor in-cache performance. 2005-07-15 Dan Creswell <dan@dancres.org> * Fix a deadlock around TxnLocks which occurs under high load when task bounds have been hit 2005-07-14 Dan Creswell <dan@dancres.org> * Revise documentation to include new tools. Split out configuration variables into sections and improved layout. * Revised output format of log dumping tool to be more parser friendly. 2005-07-13 Dan Creswell <dan@dancres.org> * Convert an errant System.out to a Logger.log * Add support for manual triggering of lease reaping to complement passive and automatic modes. Enabled by setting the relevant reap time to LeaseReaper.MANUAL_REAP * Add a new tool, RequestReap to remotely trigger a manual lease reap. 2005-06-30 Dan Creswell <dan@dancres.org> * Add more support for log dumping tool. In particular support more of the possible records types. * Add a write queue throttle to prevent memory exhaustion and/or overload. * Add more configuration settings for managing Db. * Improve recovery progress feedback. * Make sure we explicitly buffer logs we read during recovery. 2005-06-27 Dan Creswell <dan@dancres.org> * Released 1.10 2005-06-26 Dan Creswell <dan@dancres.org> * Fix bug where transactions finalized in the commiting/aborting thread caused deadlock owing to attempts to re-acquire mutex. 2005-06-23 Dan Creswell <dan@dancres.org> * Fix lock conflict caused by parallel database existence tests and database creation (workaround for a Db issue). 2005-06-20 Dan Creswell <dan@dancres.org> * Make non-wildcard searches terminate immediately we determine there cannot be a match. * Reduce de-serialization in searches * Reduce de-serialization in handling of recent writes 2005-06-15 Dan Creswell <dan@dancres.org> * Add initial support for log dumping tool - good for debugging both blitz and applications - see exactly what happened during a run. 2005-06-03 Dan Creswell <dan@dancres.org> * Fix database naming conflict caused by naming an Entry field meta * Released 1.09 2005-05-30 Dan Creswell <dan@dancres.org> * Change CacheIndexer default log level * Added ignoreLogConfig configuration variable to cause Blitz to ignore logger Level configuration entry's in it's configuration file. This allows a developer to use the standard logger configuration approach when appropriate. 2005-04-04 Dan Creswell <dan@dancres.org> * Fix WriteEntryOpInfo to markDirty committed entries if they are not marked dirty when unpinned. If they are pinned they can't have been written to disk yet and thus they should still be dirty but mightn't be if they got temporarily dropped into WriteScheduler due to cache pressure * Do a pre-check before executing some more costly logging statements * Don't bother asking for an Entry unless we're going to be able to actually initialize an indexer with it * Tune Db/Java to handle swapping better * Add a static serialVersionUID to DashboardUI::Factory to avoid problems with differences in Inca X releases * Optimize swapping in transient mode * Released 1.08 2005-03-31 Dan Creswell <dan@dancres.org> * Fix a bug where transaction locks might be released prematurely at commit/abort 2005-03-21 Dan Creswell <dan@dancres.org> * Lower layers of blitz.entry can end up with CacheIndexer's full of DELETED Entry's which are wasted matches. Fix CacheIndexers to ignore such Entry's 2005-03-15 Dan Creswell <dan@dancres.org> * Added support for per-Entry type constraints. See org.dancres.blitz.config.EntryConstraint * Added CacheSize constraint to override the global cache setting and set a cache size for a specific Entry type. This replaces the old mechanism for setting Entry specific cache size - update your .config's accordingly * Added Fifo constraint to enforce FIFO ordering in searches and writes for a specific Entry type. * Added support for Entry browsing to Dashboard - contributed by Phil Bishop at Inca X * Released 1.07 2005-03-08 Dan Creswell <dan@dancres.org> * Make StartDashboard's timeout configurable via system property. To override the default timeout, specify -DmaxDiscover=<ms> * Released 1.06 2005-03-04 Dan Creswell <dan@dancres.org> * Added disableBitmaps boolean config variable to disable bitmap indexing if it proves un-performant or broken. 2005-03-03 Dan Creswell <dan@dancres.org> * Added support for JavaSpaceAdmin interface as implemented by Outrigger. This will allow appropriate space browsers to interrogate and modify the contents of a Blitz instance. * Fix a bug where renew/cancel didn't manage stats correctly 2005-03-01 Dan Creswell <dan@dancres.org> * Moved reset of stats from SleeveCache::close to SleeveCache::deleteAll. * Added support for caching indexing using Bitmaps. Applicable in situations where caches are of fixed size they are much quicker than the equivalent HashMapIndexer whilst having similar memory consumption in most cases. 2005-02-19 Dan Creswell <dan@dancres.org> * Added support for remote triggering of Entry cleanup. * SpaceImpl::find should abort a null transaction in face of exceptions not prepAndCommit * Upgraded to Db 1.7.1 2005-02-08 Dan Creswell <dan@dancres.org> * Fixed a nasty race condition in LockCache where an old reference can cause invalidation of a current lock. * Merge support from FT for individual Entry cache sizes. * Released 1.05 2005-01-13 Dan Creswell <dan@dancres.org> * Fix a deadlock which can occur in writing Entry's with small cachesize * Speculative deadlock fix which might occur in updating Entry's with small cachesize * Split retry/deadlock avoidance code into a framework (RetryingUpdate and RetryableOperation) * Use deadlock avoidance framework in various parts of EntryStorage * Relax isolation levels on disk-based tuple scans. Reduces lock conflicts, lock demands and increases concurrency. Also yields a performance improvement even in cache-restricted cases. * Big thanks to Dylan Wilson for all his testing and reporting effort that fuelled the above changes and has resulted in a better product. * Fixed the release scripts to uniquely name the installer to fix SourceForge name conflicts. * Released 1.04 2005-01-10 Dan Creswell <dan@dancres.org> * Fix a deadlock which can occur during deletion of large Entry's. (Thanks to Dylan Wilson for a great bug report). 2004-12-31 Dan Creswell <dan@dancres.org> * Fix a minor problem where an abort can dump a non-fatal UnknownTransactionException during recovery. Recovery will still complete and no damage has been done. 2004-12-29 Dan Creswell <dan@dancres.org> * Fixed a bug in meta.Registry where initializer results were not forcible commited to disk. * Released 1.03 2004-12-20 Dan Creswell <dan@dancres.org> * Make Blitz obey the contents of initialGroups * Released 1.02 2004-12-14 Dan Creswell <dan@dancres.org> * Make new version attributes override those in LookupStorage * Released 1.00 * Fix a deadlock between checkpointer and processing of newly arrived Entry's being passed to blocked search tasks (thanks to Joseph Wang for another quality bug report) * Released 1.01 2004-12-01 Dan Creswell <dan@dancres.org> * Upgraded to Db/Java 1.7.0 * Released 0.99 * Merged FieldsStat from -idev * Merged Entry structure stuff from -idev dashboard 2004-11-15 Dan Creswell <dan@dancres.org> * Released 0.98 2004-11-14 Dan Creswell <dan@dancres.org> * Reduced -dl.jar footprint * Merged new rio config containing serviceui support (contributed by Jerome Bernard) 2004-11-05 Dan Creswell <dan@dancres.org> * Fixed dashboard to not tweak the look and feel when run as ServiceUI 2004-11-04 Dan Creswell <dan@dancres.org> * Added a setContent(null) into ArcCache when swapping a CBD to b1 or b2 - reduces memory footprint 2004-10-26 Dan Creswell <dan@dancres.org> * FindEntryOpInfo should not unpin an Entry - that should only be done by WriteEntryOpInfo. This could lead to inaccurate notify behaviour under very rare circumstances 2004-09-30 Dan Creswell <dan@dancres.org> * Fix bug where prepared state may not be restored correctly during recovery * Release 0.97 2004-09-23 Dan Creswell <dan@dancres.org> * Fix a deadlock induced by checkpointing whilst an EntryRepository is being demand loaded (thanks to Joseph Wang for a great bug report) * Released 0.96 2004-09-21 Dan Creswell <dan@dancres.org> * Fix a potential lock conflict when searches are happening whilst WriteDaemon performs a delete 2004-09-16 Dan Creswell <dan@dancres.org> * Fix a CacheIndexer initialization bug which can break all cache matching and associated reads/takes. Typical symptom was an ArrayIndexOutOfBoundsException which could be easily confused with a false positive caused by Entry schema changes. 2004-09-09 Dan Creswell <dan@dancres.org> * Fix silly incorrect optimization that breaks matching. * Released 0.94 2004-08-22 Dan Creswell <dan@dancres.org> * Added HostStat * Added new examples for EntrySizer and a simple HelloWorld * Added template configurations for handling large objects * Released 0.93 2004-08-21 Dan Creswell <dan@dancres.org> * Tweaked SleeveCache to not bother searching if no entry's are present rather than hit cache and then EntryStorage * Added diagnostic output to CacheIndexer * Added ServiceUI to the list of required packages for compilation * Added a snapshot test (from the JSIP package - thanks to Phil and Nige) 2004-08-06 Dan Creswell <dan@dancres.org> * SpaceImpl::write was holding txn open way longer than it needs to. 2004-08-05 Dan Creswell <dan@dancres.org> * Added throttling support on event and task queues to prevent high-load from causing runaway heap consumption problems. Configured via eventQueueBound and taskQueueBound respectively * Added support for multiple event processor threads in EventQueue to allow for balancing between event generation (typically from writes) and matching/dispatching as remote events. Configured via maxEventProcessors 2004-08-03 Dan Creswell <dan@dancres.org> * Make sure we close ObjectStreams used during (un)mangling. This is for tidyness/robustness - doesn't seem to cause a memory leak. 2004-08-02 Dan Creswell <dan@dancres.org> * Remove need for initialAttrs to be specified. * Released 0.92 2004-07-31 Dan Creswell <dan@dancres.org> * Added EntrySizer utility to class to assist in storage/memory usage estimation. 2004-07-29 Dan Creswell <dan@dancres.org> * Fix build/release to include currently linked je.jar * Released 0.91 2004-07-26 Dan Creswell <dan@dancres.org> * Merged ServiceUI support for dashboard * Released 0.90 2004-07-16 Dan Creswell <dan@dancres.org> * Revised LockMgr to use a reference queue against a standard HashMap rather than SoftHashMap which is less efficient. * Merged a patch from Sleepycat to fix an errant LogFileNotFoundException 2004-07-15 Dan Creswell <dan@dancres.org> * Turn off lock timeouts which seem to be breaking things under load 2004-07-12 Dan Creswell <dan@dancres.org> * Make sure we sync on closing a log file * Released 0.89a 2004-07-09 Dan Creswell <dan@dancres.org> * Don't use DelegatingBufferStream2 until it handles oversized writes correctly 2004-07-05 Dan Creswell <dan@dancres.org> * Fixed up some disk initialization order issues when transient personality is active. 2004-06-28 Dan Creswell <dan@dancres.org> * Fixed a build problem (really include je 1.5.0) * Released 0.89 * Added StartFromConfig to the dash package to permit use of dashboard in secure configurations etc. 2004-06-27 Dan Creswell <dan@dancres.org> * Fixed a locking problem in the txn lock manager * Modified prevayler to use nio a little more * Released 0.88 2004-06-23 Dan Creswell <dan@dancres.org> * Make SearchVisitorImpl cleanup it's txn listener * Released 0.87 2004-06-22 Dan Creswell <dan@dancres.org> * Fixed several try/catch and lock blocks in TxnState * Make sure transaction status is reflected correctly to currently blocked reads/takes * Abort blocked reads/takes waiting on a resolved transaction with a TransactionException * Added a tool to remotely trigger hot backup * Released 0.86 2004-06-21 Dan Creswell <dan@dancres.org> * Added experimental hot backup support accessible via BlitzAdmin * Fixed bug in Disk.dbExists which prevented recovery from backup * Fixed a checkpointing problem where not all state might have made it to disk * Modified LookupStorage/Data to hold Entry attributes in a MarshalledObject * Upgrade to Db/Java 1.5.0 2004-06-18 Dan Creswell <dan@dancres.org> * Revised checkpointing to block logging for less time. 2004-06-15 Dan Creswell <dan@dancres.org> * Make Blitz lock it's storage location to prevent running two instances against the same storage risking corruption. 2004-06-14 Dan Creswell <dan@dancres.org> * Added support for an identity transaction which allows for transaction like operations but with no logging. 2004-06-11 Dan Creswell <dan@dancres.org> * Fixed a bug where we might join() before fully init'd 2004-06-10 Dan Creswell <dan@dancres.org> * Made it possible to have several LeaseReaper's active, each with their own set of Reapables and with their own sets of filters. 2004-06-04 Dan Creswell <dan@dancres.org> * Fixed a problem with batch lease renewals * Fixed a broken interface which is all public but had a package private return value. Think the compiler should've caught it. Thanks to Karl Koster for helping with testing. * Released V0.85 2004-06-01 Dan Creswell <dan@dancres.org> * Updated Db/Java to 1.4.10 * Fix indexes to configure databases for duplicate support (if we don't we loose entry's - gulp!) * Released V0.83 * Fixed a bug in the lease tracker which wasn't permitting creation of the database from scratch. * Released V0.84 2004-05-25 Dan Creswell <dan@dancres.org> * Changed CacheLines to use IntHashMap for hashcode to Entry UID matching * Revised CacheLine to use a Set rather than a Map for Ids * TxnLock now lazily creates the conflicts list * Added a new experimental concurrent batcher and marked the old version stable 2004-05-19 Dan Creswell <dan@dancres.org> * Make sure we close the server socket on debugger exit * Fix LeaseImpl::canBatch to discriminate on the space instance responsible * Fix LeaseMapImpl::canContainKey to discriminate on the space instance responsible * Updated ServiceLocator to allow for timeouts * Updated tools to use ServiceLocator timeouts * Released V0.82 2004-05-17 Dan Creswell <dan@dancres.org> * Fixed hierarchical matching bug triggered by having no enclosing active transaction. * Released V0.81 2004-05-16 Dan Creswell <dan@dancres.org> * Initial fork/port to Db Java * Initial documentation revision * Released V0.8 2004-05-02 Dan Creswell <dan@dancres.org> * Released V2.0.5 * Modified SyncAndShutdown to accept spacename or lus host and spacename as parameters 2004-04-30 Dan Creswell <dan@dancres.org> * Merged Ussama Baggili's changes to allow dashboard to discover a blitz instance via unicast or multicast discovery. 2004-04-29 Dan Creswell <dan@dancres.org> * TxnLock stuff moved to txnlock package * Fixed some txnlock state visibility issues * Removed unnecessary dirtying of cache block descriptors in WriteEntryOpInfo * Modified CacheListener and ArcCache to make dirtying information available to allow CacheIndexer to better manage search candidates. * Cleared out the old deletion hinting from TupleLocator impls. * Added BlockingOpsStat to track current number of blocking reads and takes * Updated dashboard to display additional blocking stats 2004-04-28 Dan Creswell <dan@dancres.org> * Fixed a NullPointerException problem in Disk.deleteFiles * Added caches for parents and fields to EntryMangler to accelerate mangling and unmangling 2004-04-27 Dan Creswell <dan@dancres.org> * Added some caching of marshalled txn mgrs to remove repeated conversion into MarshalledObjects. 2004-04-26 Dan Creswell <dan@dancres.org> * Released V2.0.4 2004-04-22 Dan Creswell <dan@dancres.org> * Fixed race condition where client's could be performing transactional operations before join was complete. 2004-04-13 Dan Creswell <dan@dancres.org> * Added an experimental solution to keep stats up-to-date in the face of lease expiry - still not 100% timely 2004-04-08 Dan Creswell <dan@dancres.org> * Tweaked the hash-code algorithm for UIDImpl to reduce collisions 2004-04-06 Dan Creswell <dan@dancres.org> * Modified DumpEntries to compute how many entries were ignored due to their lease being expired 2004-04-04 Dan Creswell <dan@dancres.org> * Released V2.0.3 * Fix stupid bug in Null txn initializer 2004-04-02 Dan Creswell <dan@dancres.org> * Released V2.0.2 * Revised documentation to cover dashboard, SyncAndShutdown and DumpEntries * Merged dashboard source code from Inca X 2004-04-01 Dan Creswell <dan@dancres.org> * Added SyncAndShutdown and DumpEntries tools 2004-03-30 Dan Creswell <dan@dancres.org> * Blitz shouldn't bother saving local transaction manager in log records * Added logger output to announce active storage personality * Modified cache usage to allow for aging of entry's that are about to be taken 2004-03-29 Dan Creswell <dan@dancres.org> * Fixed lease expiry initialization bug in write() and notify() 2004-03-26 Dan Creswell <dan@dancres.org> * Fixed a bug in the CacheLine hint handling code where it assumed that the UID to be demoted would always be in the cache at the time * Revised admin documentation to cover shutdown/destroy configuration 2004-03-24 Dan Creswell <dan@dancres.org> * Added configuration variable (compliantDestroy) to enable/disable erasing of state when destroy is invoked (after discussion with John McClain) * Added a shutdown method which can be used to stop Blitz without erasing state regardless of the compliantDestroy variable's state 2004-03-23 Dan Creswell <dan@dancres.org> * Fixed Blitz to load join management aspects from config file if the user defines it * Added rule (jars) to build.xml for compiling and building just the .jars with no generation of javadoc etc 2004-03-21 Dan Creswell <dan@dancres.org> * Improved performance of snapshot * Fixed several performance "dark-corners" in CacheIndexer 2004-03-15 Dan Creswell <dan@dancres.org> * Fixed a bug where non-critical WriteDaemon threads were not being shutdown cleanly causing Blitz to sometimes fail to exit immediately 2004-03-14 Dan Creswell <dan@dancres.org> * Cleaned up stats handling in entry package. Moved stats updates into OpInfo instances. Split accounting/stats generation into CounterImpl * Added stat to track Entry count plus associated switch * Expanded stats client example * Added additional helper methods to TypesStat and OpStat * Documentation updated to reflect new stats 2004-03-13 Dan Creswell <dan@dancres.org> * Modified ConfigAssistant to print a general note about configuring persistent directories in addition to the OS-specific instructions. (Suggested by Ussama Baggili) * Added a stat which provides information about the current number of active transactions Blitz is handling * Reworked stats package separating out the stats generation/creation role from the stats presentation role 2004-03-11 Dan Creswell <dan@dancres.org> * Fixed a bug in Blitz's prepareAndCommit implementation where the wrong state could be returned * Fixed a bug where TransientPersonality might delete currently active files leaving to bad shutdown 2004-03-03 Dan Creswell <dan@dancres.org> * Released V2.0.1 * Fixed bug in OID Allocation which could cause recovery problems should initial setup fail before completion * Fixed bug where EventQueue could be interrupted whilst updating event generator sequence numbers as part of restart * Cleaned up Registry API by splitting methods into RegistryAccessor * Fixed bug where not all cached entries were being considered for wildcard match * Added pdf file explaining how to use Blitz in embedded mode 2004-02-24 Dan Creswell <dan@dancres.org> * Added BlitzAdmin interface * Added ability to trigger checkpoint remotely via BlitzAdmin 2004-02-19 Dan Creswell <dan@dancres.org> * Fixed Blitz to invoke ActivationGroup::inactive() during destroy() to ensure garbage collection is performed and classloaders are dumped 2004-02-04 Dan Creswell <dan@dancres.org> * Released V2.0.0 * Added support for Db 4.2 * Added ConfigGuide, a tool to assist in initial setup/installation of Blitz * Renamed ConfigGuide to ConfigAssistant * Updated tuning guide, install notes etc 2004-02-03 Dan Creswell <dan@dancres.org> * Introduced BootContext which allows components to be aware of various bits of boot-time information for purposes of recovery etc * Implemented a BootInfo instance, UnsyncdOps, which is added to BootContext to advise components of the maximum number of log ops that may have accrued since the last sync/checkpoint * Modified AllocatorImpl to use UnsyncdOps for resync'ing of oid allocators. Removes the need for user code to be involved in the allocator recovery process * Added rules to allow building/release of binaries for Db4.1 and Db4.2 2004-02-02 Dan Creswell <dan@dancres.org> * Implemented BufferingPrevaylerImpl * Implemented TimeBarrierPersistent and TimeBarrierPersonality which allows trading of persistence QoS against speed * Implemented automatic log cleanup. Experimental for now so it can be configured off through the appropriate StorageModel's 2004-01-28 Dan Creswell <dan@dancres.org> * Separated the checkpointing code out of TxnManager and made it abstract to allow easier changes in policy * Added support for storage personality's/models * Moved the persistence initialization out of TxnManager and into Persistent storage model * Implemented NullPrevayler to allow for log-less operation * Implemented NeverTrigger to allow for checkpoint-less operation * Create Transient storage model which makes Blitz act like a disk-backed cache 2004-01-24 Dan Creswell <dan@dancres.org> * Added DebugILFactory which allows a programmer to insert a custom invocation layer into Blitz's endpoint stack * Added TimingInvocationHandler which logs the duration of a remote call to console and can be configured into the remote stack via DebugILFactory 2004-01-22 Dan Creswell <dan@dancres.org> * Added experimental support for concurrent log write batching where one batch can be written to disk whilst another is forming * Added support for a log buffer. Allows for all writes in a batch to be rendered into a buffer and block written to disk for better throughput 2004-01-20 Dan Creswell <dan@dancres.org> * Released V1.1.4 * Fixed an incorrect configuration variable reference: dbCache * Added config option to allow setting of max simultaneous Db txn's * Fixed TxnManagerState to correctly save/load it's clock state - required during recovery * Fixed a checkpoint bug which sometimes resulted in a lost entry. SyncFinalizer now invokes txn_checkpoint with Db.DB_FORCE 2004-01-20 Dan Creswell <dan@dancres.org> * Added integrity checking * Added logging for LoginContext.login() failures 2004-01-15 Dan Creswell <dan@dancres.org> * Tweaked code to compile under JDK 1.5 - includes some code in Debugger to perform programmatical stack dumps 2004-01-13 Dan Creswell <dan@dancres.org> * Released V1.1.3 * Updated some Javadoc * Updated documentation * Changed org.dancres.blitz.Logging to force use of a predefined ConsoleHandler which fixes a problem with losing logging messages with a level less than INFO 2004-01-12 Dan Creswell <dan@dancres.org> * Moved PINNED EntrySleeve handling into WriteScheduler * MEMORY_ONLY became PINNED * Fixed deadlock in WriteBuffer (TxnStress strikes again) - don't hold locks across I/O! * Rewrote WriteBuffer to better consolidate writes and reduce load on WriteDaemon 2004-01-11 Dan Creswell <dan@dancres.org> * Fixed WriteDaemon to correctly handle a desiredPendingWrites value of 0 * Added a MemoryStat to track maximum available and current memory usage 2004-01-08 Dan Creswell <dan@dancres.org> * Fixed a deadlock by making EntryStorage::load use non-blocking disk transactions * Added non-blocking disk transactions * Modified LocalSpace to support full transactional operations. Provides embedded space capability * Added Debugger tool. See org.dancres.blitz.Debugger * Created TxnStress to thrash Blitz. It worked, found a deadlock! :( 2004-01-05 Dan Creswell <dan@dancres.org> * Released V1.1.2 * Fixed a deadlock. Rarely happens as it requires a particular step in checkpoint to happen at exactly the same time as a del of an EntrySleeve from an index. Both the checkpoint and the del must hit the same page at pretty much the same time and in one particular order 2004-01-04 Dan Creswell <dan@dancres.org> * Revised lease handling code. Fixed a bug in the lease bounding for entries where we weren't searching for the correct config value. Much cleaner now * Released V1.1.1 * Replaced use of ":" in .config files with System.property("path.separator") to be more cross-platform. Thanks to Olaf Bergner for this suggestion 2004-01-02 Dan Creswell <dan@dancres.org> * Added a tuning guide * Various documentation tweaks 2003-12-17 Dan Creswell <dan@dancres.org> * Released V1.1.0 * Recovery of oid allocation simplified * Notify registration recovery rewritten to allow full recovery from log files alone 2003-12-16 Dan Creswell <dan@dancres.org> * Released v1.0.2 * Support for dumping of useful disk performance statistics * Removed excessive log flushing 2003-12-15 Dan Creswell <dan@dancres.org> * Released v1.0.1 * Fixed bug in checkpointing where checkpoint record was written before all buffers were flushed 2003-12-12 Dan Creswell <dan@dancres.org> * Released v1.0 - initial code drop