[HDFS-13302] Ozone: fix classpath of yarn components

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: HDFS-7240
• Fix Version/s: HDFS-7240
• Component/s: HDFS-7240
• Hadoop Flags: Reviewed
• Assignee: Marton Elek
• Reporter: Marton Elek
• Created: 16/Mar/18 18:31
• Updated: 24/Apr/18 20:59
• Resolved: 16/Mar/18 21:39

Description

HDFS-13258 introduced a separated classpath for hdsl/cblock/ozone components.

The reason is the behaviour of the dist-layout-stitching. The internal copy command in the dist-layout-stitching copies the jar files only if they don not exist in any of the existing subfolder of the share/hadoop directory.

With the new separated classpath if some of the dependencies are already copied to share/hadoop/hdsl or share/hadoop/ozone, they won't be copied to the share/hadoop/yarn directory and won't be added to the classpath. (as the hdsl copy is before the yarn copy commands)

Could be fixed easily with moving the ozone/cblock/hdsl related stuff to the end of the dist-layout-stitching.