phoenix-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Maryann Xue (JIRA)" <j...@apache.org>
Subject [jira] [Created] (PHOENIX-1224) Dead loop in hbase scan when hint SKIP_SCAN is set and there is partial key match in RowValueConstructor
Date Sat, 30 Aug 2014 01:29:53 GMT
Maryann Xue created PHOENIX-1224:
------------------------------------

             Summary: Dead loop in hbase scan when hint SKIP_SCAN is set and there is partial
key match in RowValueConstructor
                 Key: PHOENIX-1224
                 URL: https://issues.apache.org/jira/browse/PHOENIX-1224
             Project: Phoenix
          Issue Type: Bug
    Affects Versions: 3.0.0, 4.0.0, 5.0.0
            Reporter: Maryann Xue


The below test will end up in dead loop in hbase scan.

{code}
    @Test
    public void testForceSkipScan() throws Exception {
        String tempTableWithCompositePK = "TEMP_TABLE_COMPOSITE_PK";
        Properties props = PropertiesUtil.deepCopy(TEST_PROPERTIES);
        Connection conn = DriverManager.getConnection(getUrl(), props);
        try {
            conn.createStatement().execute("CREATE TABLE " + tempTableWithCompositePK 
                    + "   (col0 INTEGER NOT NULL, " 
                    + "    col1 INTEGER NOT NULL, " 
                    + "    col2 INTEGER NOT NULL, "
                    + "    col3 INTEGER "
                    + "   CONSTRAINT pk PRIMARY KEY (col0, col1, col2)) " 
                    + "   SALT_BUCKETS=4");
            
            PreparedStatement upsertStmt = conn.prepareStatement(
                    "upsert into " + tempTableWithCompositePK + "(col0, col1, col2, col3)
" + "values (?, ?, ?, ?)");
            for (int i = 0; i < 3; i++) {
                upsertStmt.setInt(1, i + 1);
                upsertStmt.setInt(2, i + 2);
                upsertStmt.setInt(3, i + 3);
                upsertStmt.setInt(4, i + 5);
                upsertStmt.execute();
            }
            conn.commit();
            
            String query = "SELECT /*+ SKIP_SCAN*/ * FROM " + tempTableWithCompositePK + "
WHERE (col0, col1) in ((2, 3), (3, 4), (4, 5))";
            PreparedStatement statement = conn.prepareStatement(query);
            ResultSet rs = statement.executeQuery();
            assertTrue(rs.next());
            assertEquals(rs.getInt(1), 2);
            assertEquals(rs.getInt(2), 3);
            assertEquals(rs.getInt(3), 4);
            assertEquals(rs.getInt(4), 6);
            assertTrue(rs.next());
            assertEquals(rs.getInt(1), 3);
            assertEquals(rs.getInt(2), 4);
            assertEquals(rs.getInt(3), 5);
            assertEquals(rs.getInt(4), 7);

            assertFalse(rs.next());
        } finally {
            conn.close();
        }
    }
{code}

The dead-loop thread:
{panel}
"defaultRpcServer.handler=4,queue=0,port=58945" daemon prio=10 tid=0x00007fe4d408c000 nid=0x7bba
runnable [0x00007fe4c10cf000]
   java.lang.Thread.State: RUNNABLE
        at java.util.ArrayList.size(ArrayList.java:177)
        at java.util.AbstractList$Itr.hasNext(AbstractList.java:339)
        at org.apache.hadoop.hbase.filter.FilterList.filterAllRemaining(FilterList.java:199)
        at org.apache.hadoop.hbase.regionserver.ScanQueryMatcher.match(ScanQueryMatcher.java:263)
        at org.apache.hadoop.hbase.regionserver.StoreScanner.next(StoreScanner.java:469)
        at org.apache.hadoop.hbase.regionserver.KeyValueHeap.next(KeyValueHeap.java:140)
        at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.populateResult(HRegion.java:3937)
        at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextInternal(HRegion.java:4017)
        at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextRaw(HRegion.java:3885)
        at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextRaw(HRegion.java:3876)
        at org.apache.phoenix.coprocessor.ScanRegionObserver$2.nextRaw(ScanRegionObserver.java:366)
        at org.apache.phoenix.coprocessor.DelegateRegionScanner.nextRaw(DelegateRegionScanner.java:76)
        at org.apache.hadoop.hbase.regionserver.HRegionServer.scan(HRegionServer.java:3157)
        - locked <0x0000000778d5dbd8> (a org.apache.phoenix.coprocessor.BaseScannerRegionObserver$1)
        at org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:29497)
        at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2027)
        at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:98)
        at org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:114)
        at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:94)
        at java.lang.Thread.run(Thread.java:662)
{panel}



--
This message was sent by Atlassian JIRA
(v6.2#6252)

Mime
View raw message