Eugene Koifman created HIVE-17547:
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Summary: MoveTask for Acid tables race condition
Key: HIVE-17547
URL: https://issues.apache.org/jira/browse/HIVE-17547
Project: Hive
Issue Type: Bug
Components: Transactions
Affects Versions: 1.0.0
Reporter: Eugene Koifman
Assignee: Eugene Koifman
Consider Hive.moveAcidFiles()
it starts out with something like
{noformat}
└── -ext-10000
│ └── 000000_0
│ ├── _orc_acid_version
│ └── delta_0000019_0000019
│ └── bucket_00000
│ └── 000000_1
│ ├── _orc_acid_version
│ └── delta_0000019_0000019
│ └── bucket_00001
{noformat}
for a write to a bucketed table.
The "move" handles each 000000_N separately. The first on creates
delta_0000019_0000019 under the table/partition dir, the others just add
bucket_0000N there.
That means there is a small window where someone may "ls
table/part/delta_0000019_0000019" and not see all the buckets.
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