Flume

	Important
	Hortonworks strongly recommends that all users running HDP 2.3.4 upgrade to HDP 2.3.4.7.

HDP 2.3.4 provides Flume 1.5.2 and the following Apache patches:

HDP 2.3.2 provided Flume 1.5.2, with no additional Apache patches.

HDP 2.3.0 provided Flume 1.5.2 and the following Apache patches:

NEW FEATURES

FLUME-1734 Hive Sink based on the new Hive Streaming support
FLUME-2442 Need an alternative to providing clear text passwords in flume config

Kafka Sink (preview)

FLUME-2251 Add support for Kafka Sink
FLUME-2454 Support batchSize to allow multiple events per transaction to the Kafka Sink
FLUME-2455 Documentation update for Kafka Sink
FLUME-2470 Kafka Sink and Source must use camel case for all configs.
FLUME-2499 Include Kafka Message Key in Event Header, Updated Comments

Kafka Source

IMPROVEMENTS

FLUME-2095 JMS source with TIBCO (patch-1)
FLUME-2226 Refactor BlobHandler out of morphline sink and into HTTP source
FLUME-2227 Move BlobDeserializer from Morphline Sink to flume-ng-core
FLUME-2337 export JAVA_HOME in flume-env.sh.template and increase heap size
FLUME-2450 Improve replay index insertion speed
FLUME-2511 Allow configuration of enabled protocols in Avro source and Rpc client
FLUME-2586 HDFS Sink should have an option to try rename even if close fails
FLUME-2595 Add option to checkpoint on file channel shutdown
FLUME-2624 Streaming ingest performance improvement
FLUME-2662 Upgrade to Commons-IO 2.4
FLUME-2663 Address Build warnings of duplicate dependencies listed
FLUME-2665 Update documentation for hdfs.closeTries based on FLUME-2586

BUG FIXES

FLUME-2122 Minor cleanups of User guide
FLUME-2123 Morphline Solr sink missing short type name
FLUME-2162 TestHDFSEventSinkOnMiniCluster.maxUnderReplicationTest fails on hadoop2
FLUME-2175 Update Developer Guide with notes on how to upgrade Protocol Buffer version
FLUME-2358 File Channel needs to close BackingStore and EventQueue before deleting files in checkpoint directory
FLUME-2402 Warning seen when overflow is disabled for Spillable Channel
FLUME-2407 Spillable Channel sometimes fails on reconfigure
FLUME-2412 Improve Logging in Spillable Channel
FLUME-2441 Unit test TestHTTPSource.java failed with IBM JDK 1.7
FLUME-2451 HDFS Sink Cannot Reconnect After NameNode Restart
FLUME-2501 Updating HttpClient lib version to ensure compatibility with Solr
FLUME-2520 HTTP Source should be able to block a prefixed set of protocols.
FLUME-2530 Resource leaks found by Coverity tool
FLUME-2533 HTTPS tests fail on Java 6
FLUME-2541 Bug in TestBucketWriter.testSequenceFileCloseRetries