This is the documentation for CDH 5.1.x. Documentation for other versions is available at Cloudera Documentation.
Known Issues Fixed in CDH 5.0.2
The following topics describe known issues fixed in CDH 5.0.2. See What's New in CDH 5.0.2 for a list of the most important upstream problems fixed in this release.
Apache Hadoop
CDH 5 clients running releases 5.0.1 and earlier cannot use WebHDFS to connect to a CDH 4 cluster
For example, a hadoop
fs -ls webhdfs command run from the CDH 5 client to the CDH 4 cluster produces
an error such as the
following:
Found 21 items ls: Invalid value for webhdfs parameter "op": No enum const class org.apache.hadoop.hdfs.web.resources.GetOpParam.Op.GETACLSTATUS
Bug: HDFS-6326
Severity: Medium
Workaround: None; note that this is fixed as of CDH 5.0.2.
Apache HBase
— Endless Compaction Loop
If an empty HFile whose max timestamp is past its TTL (time-to-live) is selected for compaction, it is compacted into another empty HFile, which is selected for compaction, creating an endless compaction loop.
Bug: HBASE-10371
Severity: Medium
Workaround: None
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