Jackie-Jiang commented on a change in pull request #4156: Refactor
HelixExternalViewBasedTimeBoundaryService to support all time units
URL: https://github.com/apache/incubator-pinot/pull/4156#discussion_r279968385
##########
File path:
pinot-broker/src/main/java/org/apache/pinot/broker/routing/HelixExternalViewBasedTimeBoundaryService.java
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@@ -48,77 +50,106 @@ public
HelixExternalViewBasedTimeBoundaryService(ZkHelixPropertyStore<ZNRecord>
}
public void updateTimeBoundaryService(ExternalView externalView) {
- if (_propertyStore == null) {
- return;
- }
- String tableName = externalView.getResourceName();
- // Do nothing for realtime table.
- if (TableNameBuilder.getTableTypeFromTableName(tableName) ==
TableType.REALTIME) {
+ String tableNameWithType = externalView.getResourceName();
+
+ // Skip real-time table, only use offline table to update the time boundary
+ if (TableNameBuilder.getTableTypeFromTableName(tableNameWithType) ==
TableType.REALTIME) {
return;
}
Set<String> offlineSegmentsServing = externalView.getPartitionSet();
if (offlineSegmentsServing.isEmpty()) {
- LOGGER.info("Skipping updating time boundary service for table '{}' with
no offline segments.", tableName);
+ LOGGER.warn("Skipping updating time boundary for table: '{}' with no
offline segment", tableNameWithType);
return;
}
- TableConfig offlineTableConfig =
ZKMetadataProvider.getOfflineTableConfig(_propertyStore, tableName);
- assert offlineTableConfig != null;
- TimeUnit tableTimeUnit =
offlineTableConfig.getValidationConfig().getTimeType();
- if (tableTimeUnit == null) {
- LOGGER.info("Skipping updating time boundary service for table '{}'
because time unit is not set", tableName);
+ // TODO: when we start using dateTime, pick the time column from the
retention config, and use the DateTimeFieldSpec
+ // from the schema to determine the time unit
+ // TODO: support SDF
+ TableConfig tableConfig =
ZKMetadataProvider.getTableConfig(_propertyStore, tableNameWithType);
+ assert tableConfig != null;
+ SegmentsValidationAndRetentionConfig retentionConfig =
tableConfig.getValidationConfig();
+ String timeColumn = retentionConfig.getTimeColumnName();
+ TimeUnit tableTimeUnit = retentionConfig.getTimeType();
+ if (timeColumn == null || tableTimeUnit == null) {
+ LOGGER.error("Skipping updating time boundary for table: '{}' because
time column/unit is not set",
+ tableNameWithType);
return;
}
- // Bulk reading all segment zk-metadata at once is more efficient than
reading one at a time.
+ Schema schema = ZKMetadataProvider.getTableSchema(_propertyStore,
tableNameWithType);
Review comment:
This is for the TODO in line 66. Because segment is generated based on the
schema, we should always pick the time column and unit from schema instead of
the table config. In the future if we have multiple time columns
(DateTimeField) in schema, we can use the time column from table config to
determine which one to use as the main time column, but the time unit should
still from schema.
Because we want to follow the time field spec in schema in the future, I'll
change it to use time column/unit from schema, and keep the checks so that we
can find the inconsistency.
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