Apache Flume 1.7.0 发布了，Flume 是一个分布式、可靠和高可用的服务，用于收集、聚合以及移动大量日志数据，使用一个简单灵活的架构，就流数据模型。这是一个可靠、容错的服务。

本次更新如下：

新特性

• [FLUME-2498] - Implement Taildir Source

改进

• [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 修复

• [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

文档

• [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 悦德财富：https://www.yuedecaifu.com

• [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

任务

• [FLUME-2935] - Bump java target version to 1.7

测试

• [FLUME-3003] - testSourceCounter in TestSyslogUdpSource is flaky