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https://issues.apache.org/jira/browse/LUCENE-5434?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13890975#comment-13890975
]
Mark Miller commented on LUCENE-5434:
-------------------------------------
for example:
{noformat}
diff --git
a/lucene/core/src/java/org/apache/lucene/index/StandardDirectoryReader.java
b/lucene/core/src/java/org/apache/lucene/index/StandardDirectoryReader.java
index
18d84634bbc2fb79aa476a6eb1e2b20eb303bba5..75cea119d6066d4861c1551a2607f64d47c63f67
100644
--- a/lucene/core/src/java/org/apache/lucene/index/StandardDirectoryReader.java
+++ b/lucene/core/src/java/org/apache/lucene/index/StandardDirectoryReader.java
@@ -118,6 +118,11 @@ final class StandardDirectoryReader extends
DirectoryReader {
}
}
}
+
+ synchronized (writer) {
+ writer.deleter.incRef(segmentInfos, false);
+ }
+
return new StandardDirectoryReader(dir, readers.toArray(new
SegmentReader[readers.size()]),
writer, segmentInfos, writer.getConfig().getReaderTermsIndexDivisor(),
applyAllDeletes);
}
@@ -354,6 +359,10 @@ final class StandardDirectoryReader extends
DirectoryReader {
}
if (writer != null) {
+ synchronized (writer) {
+ writer.deleter.decRef(segmentInfos);
+ }
+
// Since we just closed, writer may now be able to
// delete unused files:
writer.deletePendingFiles();
--
{noformat}
> Let NRT Readers prevent their files from being removed.
> -------------------------------------------------------
>
> Key: LUCENE-5434
> URL: https://issues.apache.org/jira/browse/LUCENE-5434
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Mark Miller
>
> See SOLR-5693 and our HDFS support - for something like HDFS to work with
> NRT, we need an ability for near realtime readers to hold references to their
> files to prevent deletes.
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