noob-se7en commented on code in PR #14623:
URL: https://github.com/apache/pinot/pull/14623#discussion_r1925918330
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pinot-common/src/main/java/org/apache/pinot/common/minion/RealtimeToOfflineSegmentsTaskMetadata.java:
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@@ -18,57 +18,183 @@
*/
package org.apache.pinot.common.minion;
+import com.google.common.base.Preconditions;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import org.apache.commons.lang3.StringUtils;
import org.apache.helix.zookeeper.datamodel.ZNRecord;
/**
- * Metadata for the minion task of type
<code>RealtimeToOfflineSegmentsTask</code>.
- * The <code>watermarkMs</code> denotes the time (exclusive) upto which tasks
have been executed.
- *
+ * Metadata for the minion task of type
<code>RealtimeToOfflineSegmentsTask</code>. The <code>_windowStartMs</code>
+ * denotes the time (exclusive) until which it's certain that tasks have been
completed successfully. The
+ * <code>_expectedSubtaskResultMap</code> contains the expected RTO tasks
result info. This map can contain both
+ * completed and in-completed Tasks expected Results. This map is used by
generator to validate whether a potential
+ * segment (for RTO task) has already been successfully processed as a RTO
task in the past or not. The
+ * <code>_windowStartMs</code> and <code>_windowEndMs</code> denote the window
bucket time of currently not
+ * successfully completed minion task. bucket: [_windowStartMs, _windowEndMs)
The window is updated by generator when
+ * it's certain that prev minon task run is successful.
+ * <p>
* This gets serialized and stored in zookeeper under the path
* MINION_TASK_METADATA/${tableNameWithType}/RealtimeToOfflineSegmentsTask
- *
- * PinotTaskGenerator:
- * The <code>watermarkMs</code>> is used by the
<code>RealtimeToOfflineSegmentsTaskGenerator</code>,
- * to determine the window of execution for the task it is generating.
- * The window of execution will be [watermarkMs, watermarkMs + bucketSize)
- *
- * PinotTaskExecutor:
- * The same watermark is used by the
<code>RealtimeToOfflineSegmentsTaskExecutor</code>, to:
- * - Verify that is is running the latest task scheduled by the task generator
- * - Update the watermark as the end of the window that it executed for
+ * <p>
+ * PinotTaskGenerator: The <code>_windowStartMs</code>> is used by the
+ * <code>RealtimeToOfflineSegmentsTaskGenerator</code>, to determine the
window of execution of the prev task based on
+ * which it generates new task.
+ * <p>
+ * PinotTaskExecutor: The same windowStartMs is used by the
<code>RealtimeToOfflineSegmentsTaskExecutor</code>, to:
+ * - Verify that it's running the latest task scheduled by the task generator.
+ * - The _expectedSubtaskResultMap is updated before the offline segments are
uploaded to the table.
*/
public class RealtimeToOfflineSegmentsTaskMetadata extends BaseTaskMetadata {
- private static final String WATERMARK_KEY = "watermarkMs";
+ private static final String WINDOW_START_KEY = "watermarkMs";
+ private static final String WINDOW_END_KEY = "windowEndMs";
+ private static final String COMMA_SEPARATOR = ",";
+ private static final String SEGMENT_NAME_TO_EXPECTED_SUBTASK_RESULT_ID_KEY =
"segmentToExpectedSubtaskResultId";
private final String _tableNameWithType;
- private final long _watermarkMs;
+ private long _windowStartMs;
+ private long _windowEndMs;
+ private final Map<String, ExpectedSubtaskResult> _expectedSubtaskResultMap;
+ private final Map<String, String> _segmentNameToExpectedSubtaskResultID;
Review Comment:
Let me see if I can refactor to simplify the readibility of the code.
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