AshinGau commented on code in PR #34032:
URL: https://github.com/apache/doris/pull/34032#discussion_r1599289491
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fe/fe-core/src/main/java/org/apache/doris/datasource/hive/source/HiveScanNode.java:
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@@ -217,6 +229,46 @@ protected List<Split> getSplits() throws UserException {
}
}
+ public List<Split> getNextBatch(int maxBatchSize) throws UserException {
+ try {
+ HiveMetaStoreCache cache = Env.getCurrentEnv().getExtMetaCacheMgr()
+ .getMetaStoreCache((HMSExternalCatalog)
hmsTable.getCatalog());
+ String bindBrokerName = hmsTable.getCatalog().bindBrokerName();
+ List<Split> allFiles = Lists.newArrayList();
+ int numPartitions = 0;
+ while (allFiles.size() < maxBatchSize &&
prunedPartitionsIter.hasNext()) {
+ List<HivePartition> partitions = new
ArrayList<>(NUM_PARTITIONS_PER_LOOP);
+ for (int i = 0; i < NUM_PARTITIONS_PER_LOOP &&
prunedPartitionsIter.hasNext(); ++i) {
+ partitions.add(prunedPartitionsIter.next());
+ numPartitions++;
+ }
+ getFileSplitByPartitions(cache, partitions, allFiles,
bindBrokerName);
+ }
+ if (allFiles.size() / numPartitions > numSplitsPerPartition) {
+ numSplitsPerPartition = allFiles.size() / numPartitions;
+ }
+ return allFiles;
+ } catch (Throwable t) {
+ LOG.warn("get file split failed for table: {}",
hmsTable.getName(), t);
+ throw new UserException(
+ "get file split failed for table: " + hmsTable.getName() +
", err: " + Util.getRootCauseMessage(t),
+ t);
+ }
+ }
+
+ public boolean hasNext() {
+ return prunedPartitionsIter.hasNext();
+ }
+
+ public boolean isBatchMode() {
+ int numPartitions =
ConnectContext.get().getSessionVariable().getNumPartitionsInBatchMode();
Review Comment:
When stable, the getSplits() interface will be removed, only the batch
interface will be used
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