vigyasharma commented on code in PR #633:
URL: https://github.com/apache/lucene/pull/633#discussion_r855621445
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lucene/core/src/java/org/apache/lucene/index/IndexWriter.java:
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@@ -3121,147 +3125,265 @@ private void validateMergeReader(CodecReader leaf) {
*/
public long addIndexes(CodecReader... readers) throws IOException {
ensureOpen();
-
- // long so we can detect int overflow:
- long numDocs = 0;
long seqNo;
- try {
- if (infoStream.isEnabled("IW")) {
- infoStream.message("IW", "flush at addIndexes(CodecReader...)");
- }
- flush(false, true);
+ long numDocs = 0;
+ final int mergeTimeoutInSeconds = 600;
- String mergedName = newSegmentName();
- int numSoftDeleted = 0;
- for (CodecReader leaf : readers) {
- numDocs += leaf.numDocs();
+ try {
+ // Best effort up front validations
+ for (CodecReader leaf: readers) {
validateMergeReader(leaf);
- if (softDeletesEnabled) {
- Bits liveDocs = leaf.getLiveDocs();
- numSoftDeleted +=
- PendingSoftDeletes.countSoftDeletes(
- DocValuesFieldExistsQuery.getDocValuesDocIdSetIterator(
- config.getSoftDeletesField(), leaf),
- liveDocs);
+ for (FieldInfo fi: leaf.getFieldInfos()) {
+ globalFieldNumberMap.verifyFieldInfo(fi);
}
+ numDocs += leaf.numDocs();
}
-
- // Best-effort up front check:
testReserveDocs(numDocs);
- final IOContext context =
- new IOContext(
- new MergeInfo(Math.toIntExact(numDocs), -1, false,
UNBOUNDED_MAX_MERGE_SEGMENTS));
+ synchronized (this) {
+ ensureOpen();
+ if (merges.areEnabled() == false) {
+ throw new UnsupportedOperationException("Merges are disabled on
current writer. " +
+ "Cannot execute addIndexes(CodecReaders...) API");
+ }
+ }
+
+ MergePolicy mergePolicy = config.getMergePolicy();
+ MergePolicy.MergeSpecification spec =
mergePolicy.findMerges(Arrays.asList(readers));
Review Comment:
I've updated java docs for the API, to say that we merge as specified by
`MergePolicy#findMerges()`. We are not changing the default behavior right now,
and currently, the API will continue to merge all readers into a single
segment. I'll update this when we implement
[LUCENE-10476](https://issues.apache.org/jira/browse/LUCENE-10476), to add a
single segment per reader.
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