easyice commented on PR #13035:
URL: https://github.com/apache/lucene/pull/13035#issuecomment-1912109709
Thank you! i replaced the suppress with `setMaxBufferedDocs`, the open files
in nightly tests reduced from 4000+ to 400+, does that looks okay?
The `testDeleteMerging` might also create many files, i added a similar
change to limit.
Can **not** be reproduced:
```
> Caused by:
> java.nio.file.FileSystemException:
/dev/shm/lucene_candidate/lucene/core/build/tmp/tests-tmp/lucene.index.TestConcurrentMergeScheduler_13FCF0E4FD5ABF60-001/index-NIOFSDirectory-001/_cr_Lucene99_0.tip:
Too
many open files
> at
org.apache.lucene.tests.mockfile.HandleLimitFS.onOpen(HandleLimitFS.java:67)
> at
org.apache.lucene.tests.mockfile.HandleTrackingFS.callOpenHook(HandleTrackingFS.java:82)
> at
org.apache.lucene.tests.mockfile.HandleTrackingFS.newFileChannel(HandleTrackingFS.java:202)
> at
org.apache.lucene.tests.mockfile.FilterFileSystemProvider.newFileChannel(FilterFileSystemProvider.java:206)
> at
java.base/java.nio.channels.FileChannel.open(FileChannel.java:309)
> at
java.base/java.nio.channels.FileChannel.open(FileChannel.java:369)
> at
org.apache.lucene.store.NIOFSDirectory.openInput(NIOFSDirectory.java:78)
> at
org.apache.lucene.tests.util.LuceneTestCase.slowFileExists(LuceneTestCase.java:3014)
> at
org.apache.lucene.tests.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:800)
> at
org.apache.lucene.codecs.lucene90.blocktree.Lucene90BlockTreeTermsReader.<init>(Lucene90BlockTreeTermsReader.java:146)
> at
org.apache.lucene.codecs.lucene99.Lucene99PostingsFormat.fieldsProducer(Lucene99PostingsFormat.java:428)
> at
org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:330)
> at
org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:392)
> at
org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:98)
> at
org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:95)
> at
org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:178)
> at
org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:784)
> at
org.apache.lucene.index.IndexWriter.lambda$mergeMiddle$21(IndexWriter.java:5144)
> at
org.apache.lucene.index.MergePolicy$OneMerge.initMergeReaders(MergePolicy.java:469)
> at
org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:5140)
> at
org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4738)
> at
org.apache.lucene.index.IndexWriter$IndexWriterMergeSource.merge(IndexWriter.java:6539)
> at
org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:639)
> at
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:700)
2> NOTE: reproduce with: gradlew test --tests
TestConcurrentMergeScheduler.testDeleteMerging -Dtests.seed=13FCF0E4FD5ABF60
-Dtests.nightly=true -Dtests.locale=mgh-Latn-MZ -Dtests.timezone=Asia/Dili
-Dtests.asserts=true -Dtests.file.encoding=UTF-8
```
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