rmuir commented on a change in pull request #2429:
URL: https://github.com/apache/lucene-solr/pull/2429#discussion_r583677955
##########
File path: lucene/core/src/test/org/apache/lucene/util/TestBytesRefHash.java
##########
@@ -267,6 +271,71 @@ public void testFind() throws Exception {
}
}
+ @Test
+ public void testConcurrentAccessToUnmodifiableBytesRefHash() throws
Exception {
+ int num = atLeast(2);
+ for (int j = 0; j < num; j++) {
+ int numStrings = 797;
+ List<String> strings = new ArrayList<>(numStrings);
+ for (int i = 0; i < numStrings; i++) {
+ final String str = TestUtil.randomRealisticUnicodeString(random(), 1,
1000);
+ hash.add(new BytesRef(str));
+ assertTrue(strings.add(str));
+ }
+ int hashSize = hash.size();
+
+ UnmodifiableBytesRefHash unmodifiableHash = new
UnmodifiableBytesRefHash(hash);
+
+ AtomicInteger notFound = new AtomicInteger();
+ AtomicInteger notEquals = new AtomicInteger();
+ AtomicInteger wrongSize = new AtomicInteger();
+ int numThreads = 10;
Review comment:
Can we tone this down to use less threads (at least locally, it is ok to
increase for NIGHTLY). Using many threads causes tests like this to run
extremely slow on wimpier machine (e.g. i have 2 cores)
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