mirror of https://github.com/apache/cassandra
108 lines
4.7 KiB
Plaintext
108 lines
4.7 KiB
Plaintext
0.4.0
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* fix get_key_range problems when a node is down (CASSANDRA-440)
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and add UnavailableException to more Thrift methods
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* Add example EndPointSnitch contrib code (several tickets)
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0.4.0 RC2
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* fix SSTable generation clash during compaction (CASSANDRA-418)
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* reject method calls with null parameters (CASSANDRA-308)
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* properly order ranges in nodeprobe output (CASSANDRA-421)
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* fix logging of certain errors on executor threads (CASSANDRA-425)
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0.4.0 RC1
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* Bootstrap feature is live; use -b on startup (several tickets)
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* Added multiget api (CASSANDRA-70)
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* fix Deadlock with SelectorManager.doProcess and TcpConnection.write
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(CASSANDRA-392)
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* remove key cache b/c of concurrency bugs in third-party
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CLHM library (CASSANDRA-405)
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* update non-major compaction logic to use two threshold values
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(CASSANDRA-407)
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* add periodic / batch commitlog sync modes (several tickets)
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* inline BatchMutation into batch_insert params (CASSANDRA-403)
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* allow setting the logging level at runtime via mbean (CASSANDRA-402)
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* change default comparator to BytesType (CASSANDRA-400)
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* add forwards-compatible ConsistencyLevel parameter to get_key_range
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(CASSANDRA-322)
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* r/m special case of blocking for local destination when writing with
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ConsistencyLevel.ZERO (CASSANDRA-399)
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* Fixes to make BinaryMemtable [bulk load interface] useful (CASSANDRA-337);
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see contrib/bmt_example for an example of using it.
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* More JMX properties added (several tickets)
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* Thrift changes (several tickets)
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- Merged _super get methods with the normal ones; return values
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are now of ColumnOrSuperColumn.
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- Similarly, merged batch_insert_super into batch_insert.
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0.4.0 beta
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* On-disk data format has changed to allow billions of keys/rows per
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node instead of only millions
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* Multi-keyspace support
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* Scan all sstables for all queries to avoid situations where
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different types of operation on the same ColumnFamily could
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disagree on what data was present
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* Snapshot support via JMX
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* Thrift API has changed a _lot_:
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- removed time-sorted CFs; instead, user-defined comparators
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may be defined on the column names, which are now byte arrays.
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Default comparators are provided for UTF8, Bytes, Ascii, Long (i64),
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and UUID types.
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- removed colon-delimited strings in thrift api in favor of explicit
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structs such as ColumnPath, ColumnParent, etc. Also normalized
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thrift struct and argument naming.
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- Added columnFamily argument to get_key_range.
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- Change signature of get_slice to accept starting and ending
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columns as well as an offset. (This allows use of indexes.)
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Added "ascending" flag to allow reasonably-efficient reverse
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scans as well. Removed get_slice_by_range as redundant.
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- get_key_range operates on one CF at a time
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- changed `block` boolean on insert methods to ConsistencyLevel enum,
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with options of NONE, ONE, QUORUM, and ALL.
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- added similar consistency_level parameter to read methods
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- column-name-set slice with no names given now returns zero columns
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instead of all of them. ("all" can run your server out of memory.
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use a range-based slice with a high max column count instead.)
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* Removed the web interface. Node information can now be obtained by
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using the newly introduced nodeprobe utility.
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* More JMX stats
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* Remove magic values from internals (e.g. special key to indicate
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when to flush memtables)
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* Rename configuration "table" to "keyspace"
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* Moved to crash-only design; no more shutdown (just kill the process)
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* Lots of bug fixes
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Full list of issues resolved in 0.4 is at https://issues.apache.org/jira/secure/IssueNavigator.jspa?reset=true&&pid=12310865&fixfor=12313862&resolution=1&sorter/field=issuekey&sorter/order=DESC
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0.3.0 RC3
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* Fix potential deadlock under load in TCPConnection.
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(CASSANDRA-220)
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0.3.0 RC2
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* Fix possible data loss when server is stopped after replaying
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log but before new inserts force memtable flush.
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(CASSANDRA-204)
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* Added BUGS file
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0.3.0 RC1
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* Range queries on keys, including user-defined key collation
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* Remove support
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* Workarounds for a weird bug in JDK select/register that seems
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particularly common on VM environments. Cassandra should deploy
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fine on EC2 now
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* Much improved infrastructure: the beginnings of a decent test suite
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("ant test" for unit tests; "nosetests" for system tests), code
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coverage reporting, etc.
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* Expanded node status reporting via JMX
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* Improved error reporting/logging on both server and client
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* Reduced memory footprint in default configuration
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* Combined blocking and non-blocking versions of insert APIs
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* Added FlushPeriodInMinutes configuration parameter to force
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flushing of infrequently-updated ColumnFamilies
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