linliu-code commented on code in PR #11889:
URL: https://github.com/apache/hudi/pull/11889#discussion_r1757622025
##########
hudi-client/hudi-client-common/src/main/java/org/apache/hudi/table/upgrade/EightToSevenDowngradeHandler.java:
##########
@@ -92,4 +115,52 @@ private static void
downgradePartitionFields(HoodieWriteConfig config, HoodieEng
tablePropsToAdd.put(HoodieTableConfig.PARTITION_FIELDS,
tableConfig.getPartitionFieldProp());
}
}
+
+ static void downgradeMetadataPartitions(HoodieEngineContext context,
+ HoodieStorage hoodieStorage,
+ HoodieTableMetaClient mdtMetaClient,
+ Map<ConfigProperty, String>
tablePropsToAdd) {
+ // Fetch metadata partition paths.
+ List<String> metadataPartitions = FSUtils.getAllPartitionPaths(
+ context,
+ hoodieStorage,
+ mdtMetaClient.getBasePath(),
+ true);
+
+ // Delete partitions.
+ List<String> validPartitionPaths = deleteMetadataPartition(context,
mdtMetaClient, metadataPartitions);
+
+ // Clean the configuration.
+ tablePropsToAdd.put(TABLE_METADATA_PARTITIONS, String.join(",",
validPartitionPaths));
+ }
+
+ static List<String> deleteMetadataPartition(HoodieEngineContext context,
+ HoodieTableMetaClient
mdtMetaClient,
+ List<String> metadataPartitions)
{
+ List<String> validPartitionPaths = new ArrayList<>();
+
+ for (String partitionPath : metadataPartitions) {
+ if (partitionPath.equals(FUNCTIONAL_INDEX.getPartitionPath())
+ || partitionPath.equals(SECONDARY_INDEX.getPartitionPath())
+ || partitionPath.equals(PARTITION_STATS.getPartitionPath())) {
+ HoodieTableMetadataUtil.deleteMetadataTablePartition(
+ mdtMetaClient, context, partitionPath, true);
+ } else {
+ validPartitionPaths.add(partitionPath);
+ }
+ }
+ return validPartitionPaths;
+ }
+
+ private static HoodieTableMetaClient
createMetadataTableMetaClient(HoodieEngineContext context,
+
StoragePath basePath) {
+ return HoodieTableMetaClient.builder()
+ .setConf(HadoopFSUtils.getStorageConfWithCopy(
+ (Configuration) context.getStorageConf().unwrap()))
+ .setBasePath(
+ new Path(basePath.toString(),
+ HoodieTableMetaClient.METADATA_TABLE_FOLDER_PATH).toString())
+ .setLoadActiveTimelineOnLoad(true)
Review Comment:
I don' know. I can remove it if it works.
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