CDH 4.2.2

Cloudera’s 100% Open Source Hadoop Platform

CDH is Cloudera's open source software distribution and consists of Apache Hadoop and additional key open source projects to ensure you get the most out of Hadoop and your data.

It is the only Hadoop solution to offer unified querying options (including batch processing, interactive SQL, text search, and machine learning) and necessary enterprise security features (such as role-based access controls).

Please note: CDH requires manual installation from the command line.
For a faster, automated installation download Cloudera Manager.

What's New in CDH4.2.2

This is a maintenance release that fixes a security issue, as well as a number of issues including the following.

  • Hadoop Common
    • HADOOP-9439 - JniBasedUnixGroupsMapping: fix some crash bugs
    • HADOOP-8151 - Error handling in snappy decompressor throws invalid exceptions
  • HDFS
    • HDFS-4799 - Corrupt replica can be prematurely removed from corruptReplicas map
    • HDFS-4621 - Additional logging to help diagnose slow QJM logSync
  • HBase
    • HBASE-8446 - Allow parallel snapshot of different tables
    • HBASE-8690 - Reduce unnecessary getFileStatus hdfs calls in TTL hfile and hlog cleaners
    • HBASE-8706 - Some improvement in snapshots
    • HBASE-8712 - HFileLinkCleaner (FSUtils.listStatus) logs too much if links do not exist
    • HBASE-8742 - HTableDescriptor Properties not preserved when cloning
    • HBASE-8783 - RSSnapshotManager.ZKProcedureMemberRpcs may be initialized with the wrong server name
    • HBASE-9158 - Serious bug in cyclic replication
  • MapReduce
    • MAPREDUCE-5364 - Deadlock between RenewalTimerTask methods cancel() and run()
  • Hive:
    • HIVE-3300 - LOAD DATA INPATH fails if a hdfs file with same name is added to table
    • HIVE-4342 - NPE for query involving UNION ALL with nested JOIN and UNION ALL
    • HIVE-4766 - Support HS2 client login timeout when the thrift thread max# is reached
    • HIVE-4398 - HS2 Resource leak: operation handles not cleaned when originating session is closed
  • Oozie
    • OOZIE-1377 - OpenJPA runtime enhancement should be disabled and update OpenJPA to 2.2.2
    • OOZIE-1440 - Build fails in certain environments due to xerces OpenJPA issue

CDH 4.x Requirements and Supported Versions

Supported Operating Systems

CDH4 provides packages for Red-Hat-compatible, SLES, Ubuntu, and Debian systems as described below.

Operating System

Version

Packages

Red Hat compatible



Red Hat Enterprise Linux (RHEL)

5.7

64-bit


6.2

64-bit, 32-bit

6.4

64-bit

CentOS

5.7

64-bit


6.2

64-bit, 32-bit


6.4

64-bit

Oracle Linux with Unbreakable Enterprise Kernel

5.6

64-bit

6.4

64-bit

SLES



SLES Linux Enterprise Server (SLES)

11 with Service Pack 1 or later

64-bit

Ubuntu/Debian



Ubuntu

Lucid (10.04) - Long-Term Support (LTS)

64-bit


Precise (12.04) - Long-Term Support (LTS)

64-bit

Debian

Squeeze (6.0.3)

64-bit

  Note:
  • For production environments, 64-bit packages are recommended. Except as noted above, CDH4 provides only 64-bit packages.
  • Cloudera has received reports that our RPMs work well on Fedora, but we have not tested this.
  • If you are using an operating system that is not supported by Cloudera's packages, you can also download source tarballs from Downloads.

Supported Databases

Supported JDK versions

Supported Internet Protocol