Rahul Challapalli created DRILL-3867:
----------------------------------------
Summary: Metadata Caching : Moving a directory which contains a
cache file causes subsequent queries to fail
Key: DRILL-3867
URL: https://issues.apache.org/jira/browse/DRILL-3867
Project: Apache Drill
Issue Type: Bug
Components: Metadata
Affects Versions: 1.2.0
Reporter: Rahul Challapalli
git.commit.id.abbrev=cf4f745
git.commit.time=29.09.2015 @ 23\:19\:52 UTC
The below sequence of steps reproduces the issue
1. Create the cache file
{code}
0: jdbc:drill:zk=10.10.103.60:5181> refresh table metadata
dfs.`/drill/testdata/metadata_caching/lineitem`;
+-------+-------------------------------------------------------------------------------------+
| ok | summary
|
+-------+-------------------------------------------------------------------------------------+
| true | Successfully updated metadata for table
/drill/testdata/metadata_caching/lineitem. |
+-------+-------------------------------------------------------------------------------------+
1 row selected (1.558 seconds)
{code}
2. Move the directory
{code}
hadoop fs -mv /drill/testdata/metadata_caching/lineitem /drill/
{code}
3. Now run a query on top of it
{code}
0: jdbc:drill:zk=10.10.103.60:5181> select * from dfs.`/drill/lineitem` limit 1;
Error: SYSTEM ERROR: FileNotFoundException: Requested file
maprfs:///drill/testdata/metadata_caching/lineitem/2006/1 does not exist.
[Error Id: b456d912-57a0-4690-a44b-140d4964903e on pssc-66.qa.lab:31010]
(state=,code=0)
{code}
This is obvious given the fact that we are storing absolute file paths in the
cache file
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