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From "Vasu Mariyala (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-8930) Filter evaluates KVs outside requested columns
Date Tue, 10 Sep 2013 04:56:52 GMT

     [ https://issues.apache.org/jira/browse/HBASE-8930?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vasu Mariyala updated HBASE-8930:
---------------------------------

    Status: Open  (was: Patch Available)
    
> Filter evaluates KVs outside requested columns
> ----------------------------------------------
>
>                 Key: HBASE-8930
>                 URL: https://issues.apache.org/jira/browse/HBASE-8930
>             Project: HBase
>          Issue Type: Bug
>          Components: Filters
>    Affects Versions: 0.94.7
>            Reporter: Federico Gaule
>            Assignee: Vasu Mariyala
>            Priority: Critical
>              Labels: filters, hbase, keyvalue
>             Fix For: 0.98.0, 0.94.13, 0.96.1
>
>         Attachments: 0.94-HBASE-8930.patch, 0.94-HBASE-8930-rev1.patch, 0.94-HBASE-8930-rev2.patch,
0.94-Independent-Test-Execution.patch, 0.95-HBASE-8930.patch, 0.95-HBASE-8930-rev1.patch,
0.96-HBASE-8930-rev2.patch, 0.96-HBASE-8930-rev3.patch, 0.96-trunk-Independent-Test-Execution.patch,
8930-0.94.txt, HBASE-8930.patch, HBASE-8930-rev1.patch, HBASE-8930-rev2.patch, HBASE-8930-rev3.patch,
HBASE-8930-rev4.patch, HBASE-8930-rev5.patch, HBASE-8930-rev6.patch
>
>
> 1- Fill row with some columns
> 2- Get row with some columns less than universe - Use filter to print kvs
> 3- Filter prints not requested columns
> Filter (AllwaysNextColFilter) always return ReturnCode.INCLUDE_AND_NEXT_COL and prints
KV's qualifier
> SUFFIX_0 = 0
> SUFFIX_1 = 1
> SUFFIX_4 = 4
> SUFFIX_6 = 6
> P= Persisted
> R= Requested
> E= Evaluated
> X= Returned
> | 5580 | 5581 | 5584 | 5586 | 5590 | 5591 | 5594 | 5596 | 5600 | 5601 | 5604 | 5606 |...

> |      |  P   |   P  |      |      |  P   |   P  |      |      |  P   |   P  |      |...
> |      |  R   |   R  |   R  |      |  R   |   R  |   R  |      |      |      |      |...
> |      |  E   |   E  |      |      |  E   |   E  |      |      |  {color:red}E{color}
  |      |      |...
> |      |  X   |   X  |      |      |  X   |   X  |      |      |      |      |      |
> {code:title=ExtraColumnTest.java|borderStyle=solid}
>     @Test
>     public void testFilter() throws Exception {
>         Configuration config = HBaseConfiguration.create();
>         config.set("hbase.zookeeper.quorum", "myZK");
>         HTable hTable = new HTable(config, "testTable");
>         byte[] cf = Bytes.toBytes("cf");
>         byte[] row = Bytes.toBytes("row");
>         byte[] col1 = new QualifierConverter().objectToByteArray(new Qualifier((short)
558, (byte) SUFFIX_1));
>         byte[] col2 = new QualifierConverter().objectToByteArray(new Qualifier((short)
559, (byte) SUFFIX_1));
>         byte[] col3 = new QualifierConverter().objectToByteArray(new Qualifier((short)
560, (byte) SUFFIX_1));
>         byte[] col4 = new QualifierConverter().objectToByteArray(new Qualifier((short)
561, (byte) SUFFIX_1));
>         byte[] col5 = new QualifierConverter().objectToByteArray(new Qualifier((short)
562, (byte) SUFFIX_1));
>         byte[] col6 = new QualifierConverter().objectToByteArray(new Qualifier((short)
563, (byte) SUFFIX_1));
>         byte[] col1g = new QualifierConverter().objectToByteArray(new Qualifier((short)
558, (byte) SUFFIX_6));
>         byte[] col2g = new QualifierConverter().objectToByteArray(new Qualifier((short)
559, (byte) SUFFIX_6));
>         byte[] col1v = new QualifierConverter().objectToByteArray(new Qualifier((short)
558, (byte) SUFFIX_4));
>         byte[] col2v = new QualifierConverter().objectToByteArray(new Qualifier((short)
559, (byte) SUFFIX_4));
>         byte[] col3v = new QualifierConverter().objectToByteArray(new Qualifier((short)
560, (byte) SUFFIX_4));
>         byte[] col4v = new QualifierConverter().objectToByteArray(new Qualifier((short)
561, (byte) SUFFIX_4));
>         byte[] col5v = new QualifierConverter().objectToByteArray(new Qualifier((short)
562, (byte) SUFFIX_4));
>         byte[] col6v = new QualifierConverter().objectToByteArray(new Qualifier((short)
563, (byte) SUFFIX_4));
>         // =========== INSERTION =============//
>         Put put = new Put(row);
>         put.add(cf, col1, Bytes.toBytes((short) 1));
>         put.add(cf, col2, Bytes.toBytes((short) 1));
>         put.add(cf, col3, Bytes.toBytes((short) 3));
>         put.add(cf, col4, Bytes.toBytes((short) 3));
>         put.add(cf, col5, Bytes.toBytes((short) 3));
>         put.add(cf, col6, Bytes.toBytes((short) 3));
>         hTable.put(put);
>         put = new Put(row);
>         put.add(cf, col1v, Bytes.toBytes((short) 10));
>         put.add(cf, col2v, Bytes.toBytes((short) 10));
>         put.add(cf, col3v, Bytes.toBytes((short) 10));
>         put.add(cf, col4v, Bytes.toBytes((short) 10));
>         put.add(cf, col5v, Bytes.toBytes((short) 10));
>         put.add(cf, col6v, Bytes.toBytes((short) 10));
>         hTable.put(put);
>         hTable.flushCommits();
>         //==============READING=================//
>         Filter allwaysNextColFilter = new AllwaysNextColFilter();
>         Get get = new Get(row);
>         get.addColumn(cf, col1); //5581
>         get.addColumn(cf, col1v); //5584
>         get.addColumn(cf, col1g); //5586
>         get.addColumn(cf, col2); //5591
>         get.addColumn(cf, col2v); //5594        
>         get.addColumn(cf, col2g); //5596
>         
>         get.setFilter(allwaysNextColFilter);
>         get.setMaxVersions(1);
>         System.out.println(get);
>         Scan scan = new Scan(get);
>         ResultScanner scanner = hTable.getScanner(scan);
>         Iterator<Result> iterator = scanner.iterator();
>         System.out.println("SCAN");
>         while (iterator.hasNext()) {
>             Result next = iterator.next();
>             for (KeyValue kv : next.list()) {
>                 System.out.println(new QualifierConverter().byteArrayToObject(kv.getQualifier()));
>             }
>         }
>     }
> }
> {code}
> Requested 5581 5584 5586 5591 5594 5596
> NOT REQUESTED: 5561
> Sysout Filter
> {noformat}
> \x00\x00\x1A\xBE\x00\x05^:\x00\x00\xA0X\x00\x00=\x1A/H0:\x02.\x01/1373577819267/Put/vlen=2/ts=2
> Qualifier{date=558, type=SUFFIX_1}
> \x00\x00\x1A\xBE\x00\x05^:\x00\x00\xA0X\x00\x00=\x1A/H0:\x02.\x02/1373577819272/Put/vlen=2/ts=3
> Qualifier{date=558, type=SUFFIX_4}
> \x00\x00\x1A\xBE\x00\x05^:\x00\x00\xA0X\x00\x00=\x1A/H0:\x02/\x01/1373577819267/Put/vlen=2/ts=2
> ualifier{date=559, type=SUFFIX_1}
> \x00\x00\x1A\xBE\x00\x05^:\x00\x00\xA0X\x00\x00=\x1A/H0:\x02/\x02/1373577819272/Put/vlen=2/ts=3
> Qualifier{date=559, type=SUFFIX_4}
>  
> \x00\x00\x1A\xBE\x00\x05^:\x00\x00\xA0X\x00\x00=\x1A/H0:\x020\x01/1373577819267/Put/vlen=2/ts=2
> Qualifier{date=560, type=SUFFIX_1} (DATE 5601 NOT REQUESTED BUT EVALUATED)
> {noformat}
> Sysout ExtraColumnTest
> {noformat}
> {"timeRange":[0,9223372036854775807],"totalColumns":6,"cacheBlocks":true,"families":{"H0":["\\x02.\\x01","\\x02.\\x02","\\x02.\\x06","\\x02/\\x01"]},"maxVersions":1,"filter":"AllwaysNextColFilter","row":"\\x00\\x00\\x1A\\xBE\\x00\\x05^:\\x00\\x00\\xA0X\\x00\\x00=\\x1A"}
> SCAN
> Qualifier{date=558, type=SUFFIX_1}
> Qualifier{date=558, type=SUFFIX_4}
> Qualifier{date=559, type=SUFFIX_1}
> Qualifier{date=559, type=SUFFIX_4}
> {noformat}

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