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.
CDH 5 clients running releases 5.0.1 and earlier cannot use WebHDFS to connect to a CDH 4 cluster
Found 21 items ls: Invalid value for webhdfs parameter "op": No enum const class org.apache.hadoop.hdfs.web.resources.GetOpParam.Op.GETACLSTATUS
Workaround: None; note that this is fixed as of CDH 5.0.2.
— 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.
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