[HDFS-9625] set replication for empty file failed when set storage policy

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.7.1
• Fix Version/s: 2.8.0, 2.7.3, 3.0.0-alpha1
• Component/s: namenode
• Hadoop Flags: Reviewed
• Assignee: DENG FEI
• Reporter: DENG FEI
• Created: 07/Jan/16 08:37
• Updated: 01/Oct/16 09:28
• Resolved: 21/Jan/16 13:53

Description

When setReplication, the FSDirectory#updateCount need calculate the related storageTypes quota,but will check the file consume the ds quota is positive.
Actually,it's may set replication after create file,like JobSplitWriter#createSplitFiles.
It's also can reproduce on command shell:
1. hdfs storagepolicies -setStoragePolicy -path /tmp -policy HOT
2. hdfs dfs -touchz /tmp/test
3. hdfs dfs -setrep 5 /tmp/test

Issue Links

• duplicates: HDFS-10806 Mapreduce jobs fail when StoragePolicy is set