Ted Yu created KYLIN-2429:
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Summary: Variable initialized should be declared volatile in
SparkCubingByLayer#execute()
Key: KYLIN-2429
URL: https://issues.apache.org/jira/browse/KYLIN-2429
Project: Kylin
Issue Type: Bug
Reporter: Ted Yu
{code}
final JavaPairRDD<ByteArray, Object[]> encodedBaseRDD =
intermediateTable.javaRDD().mapToPair(new PairFunction<Row, ByteArray,
Object[]>() {
transient boolean initialized = false;
...
public Tuple2<ByteArray, Object[]> call(Row row) throws Exception {
if (initialized == false) {
synchronized (SparkCubingByLayer.class) {
if (initialized == false) {
{code}
For double checked locking to work, initialized needs to be volatile.
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