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Apache Hadoop Changelog

Release 2.6.6 - Unreleased (as of 2018-09-02)

INCOMPATIBLE CHANGES:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-13812	Upgrade Tomcat to 6.0.48	Blocker	kms	John Zhuge	John Zhuge

IMPROVEMENTS:

JIRA	Summary	Priority	Component	Reporter	Contributor
HDFS-8865	Improve quota initialization performance	Major	.	Kihwal Lee	Kihwal Lee
YARN-7590	Improve container-executor validation check	Major	security, yarn	Eric Yang	Eric Yang

BUG FIXES:

JIRA	Summary	Priority	Component	Reporter	Contributor
HDFS-9003	ForkJoin thread pool leaks	Major	.	Kihwal Lee	Kihwal Lee
YARN-4328	Findbugs warning in resourcemanager in branch-2.7 and branch-2.6	Minor	resourcemanager	Varun Saxena	Akira Ajisaka
HDFS-11180	Intermittent deadlock in NameNode when failover happens.	Blocker	namenode	Abhishek Modi	Akira Ajisaka
HDFS-11352	Potential deadlock in NN when failing over	Critical	namenode	Erik Krogen	Erik Krogen
HADOOP-13433	Race in UGI.reloginFromKeytab	Major	security	Duo Zhang	Duo Zhang
YARN-6056	Yarn NM using LCE shows a failure when trying to delete a non-existing dir	Major	yarn	Wilfred Spiegelenburg	Wilfred Spiegelenburg
YARN-6615	AmIpFilter drops query parameters on redirect	Major	.	Wilfred Spiegelenburg	Wilfred Spiegelenburg
HADOOP-14474	Use OpenJDK 7 instead of Oracle JDK 7 to avoid oracle-java7-installer failures	Major	build	Akira Ajisaka	Akira Ajisaka
HADOOP-15143	NPE due to Invalid KerberosTicket in UGI	Major	.	Jitendra Nath Pandey	Mukul Kumar Singh

TESTS:

JIRA	Summary	Priority	Component	Reporter	Contributor
HDFS-11290	TestFSNameSystemMBean should wait until JMX cache is cleared	Major	test	Akira Ajisaka	Erik Krogen