n3nash commented on a change in pull request #689: [HUDI-25] Optimize
HoodieInputFormat.listStatus for faster Hive Incremental queries
URL: https://github.com/apache/incubator-hudi/pull/689#discussion_r289985197
##########
File path:
hoodie-hadoop-mr/src/main/java/com/uber/hoodie/hadoop/HoodieInputFormat.java
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@@ -218,4 +215,109 @@ protected static HoodieTableMetaClient
getTableMetaClient(FileSystem fs, Path da
LOG.info("Reading hoodie metadata from path " + baseDir.toString());
return new HoodieTableMetaClient(fs.getConf(), baseDir.toString());
}
+
+ /**
+ * Achieves listStatus functionality for an incrementally queried table.
Instead of listing all
+ * partitions and then filtering based on the commits of interest, this
logic first extracts the
+ * partitions touched by the desired commits and then lists only those
partitions.
+ */
+ private List<FileStatus> listStatusForIncrementalMode(JobConf job,
+ HoodieTableMetaClient tableMetaClient, List<Path> inputPaths) throws
IOException {
+ String tableName = tableMetaClient.getTableConfig().getTableName();
+ HoodieTimeline timeline =
tableMetaClient.getActiveTimeline().getCommitsTimeline()
Review comment:
HoodieInputFormat supports only RO based tables, that brings another
question, what is the plan for HoodieRealtimeInputFormat ? Are we planning to
do similar optimizations there ?
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