Examples with MyCatMemory io.mycat.memory.MyCatMemory used on opensource projects

Example 6 with MyCatMemory

use of io.mycat.memory.MyCatMemory in project Mycat-Server by MyCATApache.

the class UnsafeFixedWidthAggregationMapSuite method testWithMemoryLeakDetection.

@Test
public void testWithMemoryLeakDetection() throws IOException, NoSuchFieldException, IllegalAccessException {
    MyCatMemory myCatMemory = new MyCatMemory();
    MemoryManager memoryManager = myCatMemory.getResultMergeMemoryManager();
    DataNodeMemoryManager dataNodeMemoryManager = new DataNodeMemoryManager(memoryManager, Thread.currentThread().getId());
    int fieldCount = 3;
    ColMeta colMeta = null;
    Map<String, ColMeta> colMetaMap = new HashMap<String, ColMeta>(fieldCount);
    colMeta = new ColMeta(0, ColMeta.COL_TYPE_STRING);
    colMetaMap.put("id", colMeta);
    colMeta = new ColMeta(1, ColMeta.COL_TYPE_STRING);
    colMetaMap.put("name", colMeta);
    colMeta = new ColMeta(2, ColMeta.COL_TYPE_STRING);
    colMetaMap.put("age", colMeta);
    OrderCol[] orderCols = new OrderCol[1];
    OrderCol orderCol = new OrderCol(colMetaMap.get("id"), OrderCol.COL_ORDER_TYPE_DESC);
    orderCols[0] = orderCol;
    groupKeySchema = new StructType(colMetaMap, fieldCount);
    groupKeySchema.setOrderCols(orderCols);
    fieldCount = 3;
    colMeta = null;
    colMetaMap = new HashMap<String, ColMeta>(fieldCount);
    colMeta = new ColMeta(0, ColMeta.COL_TYPE_LONGLONG);
    colMetaMap.put("age", colMeta);
    colMeta = new ColMeta(1, ColMeta.COL_TYPE_LONGLONG);
    colMetaMap.put("age1", colMeta);
    colMeta = new ColMeta(2, ColMeta.COL_TYPE_STRING);
    colMetaMap.put("name", colMeta);
    orderCols = new OrderCol[1];
    orderCol = new OrderCol(colMetaMap.get("id"), OrderCol.COL_ORDER_TYPE_DESC);
    orderCols[0] = orderCol;
    aggBufferSchema = new StructType(colMetaMap, fieldCount);
    aggBufferSchema.setOrderCols(orderCols);
    /**
   * value
   */
    BufferHolder bufferHolder;
    emptyAggregationBuffer = new UnsafeRow(3);
    bufferHolder = new BufferHolder(emptyAggregationBuffer, 0);
    UnsafeRowWriter unsafeRowWriter = new UnsafeRowWriter(bufferHolder, 3);
    bufferHolder.reset();
    String value = "ok,hello";
    emptyAggregationBuffer.setLong(0, 0);
    emptyAggregationBuffer.setLong(1, 0);
    unsafeRowWriter.write(2, value.getBytes());
    emptyAggregationBuffer.setTotalSize(bufferHolder.totalSize());
    UnsafeFixedWidthAggregationMap map = new UnsafeFixedWidthAggregationMap(emptyAggregationBuffer, aggBufferSchema, groupKeySchema, dataNodeMemoryManager, 2 * 1024, PAGE_SIZE_BYTES, false);
    int i;
    List<UnsafeRow> rows = new ArrayList<UnsafeRow>();
    for (i = 0; i < 1000; i++) {
        String line = "testUnsafeRow" + i;
        /**
     * key
     */
        UnsafeRow groupKey = new UnsafeRow(3);
        bufferHolder = new BufferHolder(groupKey, 0);
        unsafeRowWriter = new UnsafeRowWriter(bufferHolder, 3);
        bufferHolder.reset();
        final byte[] key = getRandomByteArray(rand.nextInt(8));
        String age = "5" + i;
        unsafeRowWriter.write(0, key);
        unsafeRowWriter.write(1, line.getBytes());
        unsafeRowWriter.write(2, age.getBytes());
        groupKey.setTotalSize(bufferHolder.totalSize());
        map.getAggregationBuffer(groupKey);
        rows.add(groupKey);
    }
    Assert.assertEquals(i, rows.size());
    UnsafeRow row = rows.get(12);
    UnsafeRow rs = map.getAggregationBuffer(row);
    rs.setLong(0, 12);
    rs = map.getAggregationBuffer(row);
    Assert.assertEquals(12, rs.getLong(0));
    map.free();
}