Jackie-Jiang commented on code in PR #8653:
URL: https://github.com/apache/pinot/pull/8653#discussion_r869672337
##########
pinot-controller/src/main/java/org/apache/pinot/controller/helix/core/util/ZKMetadataUtils.java:
##########
@@ -20,58 +20,106 @@
import java.util.HashMap;
import java.util.Map;
+import javax.annotation.Nullable;
import org.apache.pinot.common.metadata.segment.SegmentPartitionMetadata;
import org.apache.pinot.common.metadata.segment.SegmentZKMetadata;
-import
org.apache.pinot.common.metadata.segment.SegmentZKMetadataCustomMapModifier;
import org.apache.pinot.segment.spi.ColumnMetadata;
import org.apache.pinot.segment.spi.SegmentMetadata;
-import org.apache.pinot.segment.spi.creator.SegmentVersion;
-import org.apache.pinot.segment.spi.index.metadata.SegmentMetadataImpl;
import org.apache.pinot.segment.spi.partition.PartitionFunction;
import org.apache.pinot.segment.spi.partition.metadata.ColumnPartitionMetadata;
+import org.apache.pinot.spi.utils.CommonConstants;
+import org.apache.pinot.spi.utils.builder.TableNameBuilder;
public class ZKMetadataUtils {
private ZKMetadataUtils() {
}
- public static void updateSegmentMetadata(SegmentZKMetadata
segmentZKMetadata, SegmentMetadata segmentMetadata) {
- SegmentVersion segmentVersion = segmentMetadata.getVersion();
- if (segmentVersion != null) {
- segmentZKMetadata.setIndexVersion(segmentVersion.name());
- }
+ /**
+ * Creates the segment ZK metadata for a new segment.
+ */
+ public static SegmentZKMetadata createSegmentZKMetadata(String
tableNameWithType, SegmentMetadata segmentMetadata,
+ String downloadUrl, @Nullable String crypter, long segmentSizeInBytes) {
+ SegmentZKMetadata segmentZKMetadata = new
SegmentZKMetadata(segmentMetadata.getName());
+ updateSegmentZKMetadata(tableNameWithType, segmentZKMetadata,
segmentMetadata, downloadUrl, crypter,
+ segmentSizeInBytes);
+ segmentZKMetadata.setPushTime(System.currentTimeMillis());
+ return segmentZKMetadata;
+ }
+
+ /**
+ * Refreshes the segment ZK metadata for a segment being replaced.
+ */
+ public static void refreshSegmentZKMetadata(String tableNameWithType,
SegmentZKMetadata segmentZKMetadata,
+ SegmentMetadata segmentMetadata, String downloadUrl, @Nullable String
crypter, long segmentSizeInBytes) {
+ updateSegmentZKMetadata(tableNameWithType, segmentZKMetadata,
segmentMetadata, downloadUrl, crypter,
+ segmentSizeInBytes);
+ segmentZKMetadata.setRefreshTime(System.currentTimeMillis());
+ }
+
+ private static void updateSegmentZKMetadata(String tableNameWithType,
SegmentZKMetadata segmentZKMetadata,
+ SegmentMetadata segmentMetadata, String downloadUrl, @Nullable String
crypter, long segmentSizeInBytes) {
if (segmentMetadata.getTimeInterval() != null) {
segmentZKMetadata.setStartTime(segmentMetadata.getStartTime());
segmentZKMetadata.setEndTime(segmentMetadata.getEndTime());
segmentZKMetadata.setTimeUnit(segmentMetadata.getTimeUnit());
+ } else {
+ segmentZKMetadata.setStartTime(-1);
+ segmentZKMetadata.setEndTime(-1);
+ segmentZKMetadata.setTimeUnit(null);
+ }
+ if (segmentMetadata.getVersion() != null) {
+ segmentZKMetadata.setIndexVersion(segmentMetadata.getVersion().name());
+ } else {
+ segmentZKMetadata.setIndexVersion(null);
}
segmentZKMetadata.setTotalDocs(segmentMetadata.getTotalDocs());
- segmentZKMetadata.setCreationTime(segmentMetadata.getIndexCreationTime());
+ segmentZKMetadata.setSizeInBytes(segmentSizeInBytes);
segmentZKMetadata.setCrc(Long.parseLong(segmentMetadata.getCrc()));
- SegmentZKMetadataCustomMapModifier segmentZKMetadataCustomMapModifier =
- new
SegmentZKMetadataCustomMapModifier(SegmentZKMetadataCustomMapModifier.ModifyMode.UPDATE,
- segmentZKMetadata.getCustomMap());
-
segmentZKMetadata.setCustomMap(segmentZKMetadataCustomMapModifier.modifyMap(segmentMetadata.getCustomMap()));
+ segmentZKMetadata.setCreationTime(segmentMetadata.getIndexCreationTime());
+ segmentZKMetadata.setDownloadUrl(downloadUrl);
+ segmentZKMetadata.setCrypterName(crypter);
- // Extract column partition metadata (if any), and set it into segment ZK
metadata.
+ // Set partition metadata
Map<String, ColumnPartitionMetadata> columnPartitionMap = new HashMap<>();
- if (segmentMetadata instanceof SegmentMetadataImpl) {
- for (Map.Entry<String, ColumnMetadata> entry :
segmentMetadata.getColumnMetadataMap().entrySet()) {
- String column = entry.getKey();
- ColumnMetadata columnMetadata = entry.getValue();
- PartitionFunction partitionFunction =
columnMetadata.getPartitionFunction();
-
- if (partitionFunction != null) {
- ColumnPartitionMetadata columnPartitionMetadata =
- new ColumnPartitionMetadata(partitionFunction.getName(),
partitionFunction.getNumPartitions(),
- columnMetadata.getPartitions(),
partitionFunction.getFunctionConfig());
- columnPartitionMap.put(column, columnPartitionMetadata);
- }
+ for (Map.Entry<String, ColumnMetadata> entry :
segmentMetadata.getColumnMetadataMap().entrySet()) {
+ String column = entry.getKey();
+ ColumnMetadata columnMetadata = entry.getValue();
+ PartitionFunction partitionFunction =
columnMetadata.getPartitionFunction();
+ if (partitionFunction != null) {
+ ColumnPartitionMetadata columnPartitionMetadata =
+ new ColumnPartitionMetadata(partitionFunction.getName(),
partitionFunction.getNumPartitions(),
+ columnMetadata.getPartitions(),
partitionFunction.getFunctionConfig());
+ columnPartitionMap.put(column, columnPartitionMetadata);
}
}
-
if (!columnPartitionMap.isEmpty()) {
segmentZKMetadata.setPartitionMetadata(new
SegmentPartitionMetadata(columnPartitionMap));
+ } else {
+ segmentZKMetadata.setPartitionMetadata(null);
+ }
+
+ // Update custom metadata
+ // NOTE: Do not remove existing keys because they can be set by the HTTP
header from the segment upload request
+ Map<String, String> customMap = segmentZKMetadata.getCustomMap();
+ if (customMap == null) {
+ customMap = segmentMetadata.getCustomMap();
+ } else {
+ customMap.putAll(segmentMetadata.getCustomMap());
+ }
+ segmentZKMetadata.setCustomMap(customMap);
+
+ // Set fields specific to realtime table
+ if (TableNameBuilder.isRealtimeTableResource(tableNameWithType)) {
+
segmentZKMetadata.setStatus(CommonConstants.Segment.Realtime.Status.UPLOADED);
+
+ // NOTE: Keep offset as is if it is not explicitly set in the segment
metadata
+ if (segmentMetadata.getStartOffset() != null) {
+ segmentZKMetadata.setStartOffset(segmentMetadata.getStartOffset());
+ }
+ if (segmentMetadata.getEndOffset() != null) {
+ segmentZKMetadata.setEndOffset(segmentMetadata.getEndOffset());
+ }
Review Comment:
This logic is for the refresh segment case. If user tries to refresh a LLC
segment with a generated segment (e.g. segment purge), we want to keep the
start/end offset unchanged. Another way is to ensure the generated segment have
the proper start/end offset set, but that adds extra dependency on the segment
creation logic and make it prune to bugs. I don't anticipate a scenario where
user wants to clear the start/end offset.
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