Ke Han created HDFS-16984:
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Summary: Directory timestamp lost during the upgrade process
Key: HDFS-16984
URL: https://issues.apache.org/jira/browse/HDFS-16984
Project: Hadoop HDFS
Issue Type: Bug
Components: hdfs
Affects Versions: 3.3.5, 2.10.2
Reporter: Ke Han
Attachments: GUBIkxOc.tar.gz
h1. Symptoms
The timestamp for directory is lost after the upgrading from HDFS cluster
2.10.2 to 3.3.5.
h1. Reproduce
Start up a four node HDFS cluster in 2.10.2 version.
Execute the following commands. (The client is started up in NN, We have
minimized the command sequence for reproducing)
{code:java}
bin/hdfs dfs -mkdir /GUBIkxOc
bin/hdfs dfs -put -f -p -d /tmp/upfuzz/hdfs/GUBIkxOc/bQfxf /GUBIkxOc/
bin/hdfs dfs -mkdir /GUBIkxOc/sKbTRjvS{code}
Perform read in the old version
{code:java}
bin/hdfs dfs -ls -t -r -u /GUBIkxOc/
Found 2 items
drwxr-xr-x - root supergroup 0 1970-01-01 00:00 /GUBIkxOc/sKbTRjvS
drwxr-xr-x - 20001 998 0 2023-04-17 16:15
/GUBIkxOc/bQfxf{code}
Then perform a full-stop upgrade to upgrade the entire cluster to 3.3.5.
(Follow upgrade procedure in the website). When all nodes have started up, we
perform the same read
{code:java}
Found 2 items
drwxr-xr-x - 20001 998 0 1970-01-01 00:00 /GUBIkxOc/bQfxf
drwxr-xr-x - root supergroup 0 1970-01-01 00:00 /GUBIkxOc/sKbTRjvS
{code}
The timestamp info of directory /GUBIkxOc/bQfxf is lost. It changes from
2023-04-17 16:15 to 1970-01-01 00:00.
I have also attached the required file: +/tmp/upfuzz/hdfs/GUBIkxOc/bQfxf+ .
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