[HDFS-15601] Batch listing: gracefully fallback to use non-batched listing when NameNode doesn't support the feature

• Type: Sub-task
• Status: Patch Available
• Priority: Major
• Resolution: Unresolved
• Component/s: hdfs
• Assignee: Qi Zhu
• Reporter: Chao Sun
• Created: 25/Sep/20 22:15
• Updated: 05/Apr/21 02:33

Description

HDFS-13616 requires both server and client side change. However, it is common that users use a newer client to talk to older HDFS (say 2.10). Currently the client will simply fail in this scenario. A better approach, perhaps, is to have client fallback to use non-batched listing on the input directories.