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https://issues.apache.org/jira/browse/DRILL-3867?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16053339#comment-16053339
 ] 

ASF GitHub Bot commented on DRILL-3867:
---------------------------------------

Github user paul-rogers commented on a diff in the pull request:

    https://github.com/apache/drill/pull/824#discussion_r122602816
  
    --- Diff: 
exec/java-exec/src/test/java/org/apache/drill/exec/store/parquet/TestParquetMetadataCache.java
 ---
    @@ -398,6 +398,23 @@ public void testDrill4877() throws Exception {
     
       }
     
    +  @Test // DRILL-3867
    +  public void testMoveCache() throws Exception {
    +    String tableName = "nation_move";
    +    String newTableName = "nation_moved";
    +    test("use dfs_test.tmp");
    +    test("create table `%s/t1` as select * from cp.`tpch/nation.parquet`", 
tableName);
    +    test("create table `%s/t2` as select * from cp.`tpch/nation.parquet`", 
tableName);
    +    test(String.format("refresh table metadata %s", tableName));
    +    checkForMetadataFile(tableName);
    +    File srcFile = new File(getDfsTestTmpSchemaLocation(), tableName);
    +    File dstFile = new File(getDfsTestTmpSchemaLocation(), newTableName);
    +    FileUtils.moveDirectory(srcFile, dstFile);
    +    Assert.assertFalse("Cache file was not moved successfully", 
srcFile.exists());
    +    int rowCount = testSql(String.format("select * from %s", 
newTableName));
    +    Assert.assertEquals(50, rowCount);
    +  }
    +
    --- End diff --
    
    Will they stay absolute? Or, are they rebuilt from time to time?


> Store relative paths in metadata file
> -------------------------------------
>
>                 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
>            Assignee: Vitalii Diravka
>             Fix For: Future
>
>
> 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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