Apache Flume 1.7发布

时隔一年多，Flume终于发布了1.7版本，该版本中新增了 Taildir Source （Flume中的TaildirSource），另外，对与Kafka的集成上做了很多的改进和优化。

Release Notes – Flume – Version v1.7.0

** New Feature

[FLUME-2498] – Implement Taildir Source

** Improvement

[FLUME-1899] – Make SpoolDir work with Sub-Directories
[FLUME-2526] – Build flume by jdk 7 in default
[FLUME-2628] – Add an optional parameter to specify the expected input text encoding for the netcat sourcef the netcat source
[FLUME-2704] – Configurable poll delay for spooling directory source
[FLUME-2718] – HTTP Source to support generic Stream Handler
[FLUME-2729] – Allow pollableSource backoff times to be configurable
[FLUME-2755] – Kafka Source reading multiple topics
[FLUME-2781] – A Kafka Channel defined as parseAsFlumeEvent=false cannot be correctly used by a Flume source
[FLUME-2799] – Kafka Source – Message Offset and Partition add to headers
[FLUME-2801] – Performance improvement on TailDir source
[FLUME-2810] – Add static Schema URL to AvroEventSerializer configuration
[FLUME-2820] – Support New Kafka APIs
[FLUME-2852] – Kafka Source/Sink should optionally read/write Flume records
[FLUME-2868] – Kafka Channel partition topic by key
[FLUME-2872] – Kafka Sink should be able to select which header as the key
[FLUME-2875] – Allow RollingFileSink to specify a file prefix and a file extension.
[FLUME-2909] – Bump Rat version
[FLUME-2910] – AsyncHBaseSink – Failure callbacks should log the exception that caused them
[FLUME-2911] – Add includePattern option in SpoolDirectorySource configuration
[FLUME-2918] – TaildirSource is underperforming with huge parent directories
[FLUME-2937] – Integrate checkstyle for non-test classes
[FLUME-2941] – Integrate checkstyle for test classes
[FLUME-2954] – make raw data appearing in log messages explicit
[FLUME-2955] – Add file path to the header in TaildirSource
[FLUME-2959] – Fix issues with flume-checkstyle module
[FLUME-2982] – Add localhost escape sequence to HDFS sink
[FLUME-2999] – Kafka channel and sink should enable statically assigned partition per event via header
[FLUME-2821] – Flume-Kafka Source with new Consumer
[FLUME-2822] – Flume-Kafka-Sink with new Producer
[FLUME-2823] – Flume-Kafka-Channel with new APIs

** Bug

[FLUME-1668] – Hdfs Sink File Rollover
[FLUME-2132] – Exception while syncing from Flume to HDFS
[FLUME-2143] – Flume build occasionally fails with OutOfMemoryError on Windows.
[FLUME-2215] – ResettableFileInputStream can’t support ucs-4 character
[FLUME-2318] – SpoolingDirectory is unable to handle empty files
[FLUME-2448] – Building flume from trunk failing with dependency error
[FLUME-2484] – NullPointerException in Kafka Sink test
[FLUME-2485] – Thrift Source tests fail on Oracle JDK 8
[FLUME-2514] – Some TestFileChannelRestart tests are extremely slow
[FLUME-2567] – Remove unneeded repository declarations in pom.xml
[FLUME-2573] – flume-ng –conf parameter is not used when starting a flume agent
[FLUME-2593] – ResettableFileInputStream returns negate values from read() method
[FLUME-2619] – Spooldir source does not log channel exceptions
[FLUME-2632] – High CPU on KafkaSink
[FLUME-2652] – Documented transaction handling semantics incorrect
[FLUME-2660] – Add documentation for EventValidator
[FLUME-2672] – NPE in KafkaSourceCounter
[FLUME-2712] – Optional channel errors slows down the Source to Main channel event rate
[FLUME-2725] – HDFS Sink does not use configured timezone for rounding
[FLUME-2732] – Make maximum tolerated failures before shutting down and recreating client in AsyncHbaseSink configurable
[FLUME-2734] – Kafka Channel timeout property is overridden by default value
[FLUME-2738] – Async HBase sink FD leak on client shutdown
[FLUME-2746] – How to include this Flume Patch in Flume 1.5.2 ?
[FLUME-2749] – Kerberos configuration error when using short names in multiple HDFS Sinks
[FLUME-2751] – Upgrade Derby version to 10.11.1.1
[FLUME-2753] – Error when specifying empty replace string in Search and Replace Interceptor
[FLUME-2754] – Hive Sink skipping first transaction in each Batch of Hive Transactions
[FLUME-2761] – Move Hive sink out of preview mode
[FLUME-2763] – flume_env script should handle jvm parameters like -javaagent -agentpath -agentlib
[FLUME-2773] – TailDirSource throws FileNotFound Exception if ~/.flume directory is not created already
[FLUME-2797] – SyslogTcpSource uses Deprecated Class + Deprecate SyslogTcpSource
[FLUME-2798] – Malformed Syslog messages can lead to OutOfMemoryException
[FLUME-2804] – Hive sink – abort remaining transactions on shutdown
[FLUME-2806] – flume-ng.ps1 Error running script to start an agent on Windows
[FLUME-2835] – Hive Sink tests need to create table with transactional property set
[FLUME-2841] – Upgrade commons-collections to 3.2.2
[FLUME-2844] – ChannelCounter of SpillableMemoryChannel doesn’t register actually.
[FLUME-2881] – Windows Launch Script fails in plugins dir code
[FLUME-2886] – Optional Channels can cause OOMs
[FLUME-2889] – Fixes to DateTime computations
[FLUME-2891] – Revert FLUME-2712 and FLUME-2886
[FLUME-2897] – AsyncHBase sink NPE when Channel.getTransaction() fails
[FLUME-2901] – Document Kerberos setup for Kafka channel
[FLUME-2908] – NetcatSource – SocketChannel not closed when session is broken
[FLUME-2913] – Flume classpath too long
[FLUME-2915] – The kafka channel using new APIs will be stuck when the sink is avro sink
[FLUME-2920] – Kafka Channel Should Not Commit Offsets When Stopping
[FLUME-2922] – HDFSSequenceFile Should Sync Writer
[FLUME-2923] – Bump AsyncHBase version
[FLUME-2936] – KafkaSource tests arbitrarily fail
[FLUME-2939] – Upgrade recursive SpoolDir to use Java7 features
[FLUME-2948] – Docs: Fixed parameters on Replicating Channel Selector documentation example
[FLUME-2949] – Flume fails to build on Windows
[FLUME-2950] – ReliableSpoolingFileEventReader.rollCurrentFile is broken
[FLUME-2952] – SyslogAgent possible NPE on stop()
[FLUME-2972] – Handle offset migration in the new Kafka Channel
[FLUME-2974] – Some tests are broken in TestReliableSpoolingFileEventReader and TestSpoolingFileLineReader
[FLUME-2983] – Handle offset migration in the new Kafka Source

** Documentation

[FLUME-2575] – FLUME-2548 brings SSLv2Hello back for Avro Sink, but UG says it is one of the protocols to exclude
[FLUME-2713] – Document Fault Tolerant Config parameters in FlumeUserGuide
[FLUME-2737] – Documentation for Pollable Source config parameters introduced in FLUME-2729
[FLUME-2783] – Update Website Team page with new Committer’s
[FLUME-2890] – Typo in Twitter source warning
[FLUME-2934] – Document new cachePatternMatching option for TaildirSource
[FLUME-2963] – FlumeUserGuide – error in Kafka Source properties table
[FLUME-2971] – Document secure Kafka Sink/Source/Channel setup
[FLUME-2975] – Minor mistake in NetCat Source example in documentation
[FLUME-2998] – Add missing configuration parameter to SequenceSource docs

** Task