saintstack commented on a change in pull request #718: HBASE-23155 May NPE when
concurrent AsyncNonMetaRegionLocator#updateC…
URL: https://github.com/apache/hbase/pull/718#discussion_r334243560
##########
File path:
hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestAsyncNonMetaRegionLocator.java
##########
@@ -399,4 +399,14 @@ public void testLocateBeforeInOnlyRegion() throws
IOException, InterruptedExcept
assertArrayEquals(loc.getRegion().getStartKey(), EMPTY_START_ROW);
assertArrayEquals(loc.getRegion().getEndKey(), EMPTY_END_ROW);
}
+
+ @Test
+ public void testConcurrentUpdateCachedLocationOnError() throws Exception {
+ createSingleRegionTable();
+ HRegionLocation loc =
+ getDefaultRegionLocation(TABLE_NAME, EMPTY_START_ROW,
RegionLocateType.CURRENT, false)
+ .get();
+ IntStream.range(0, 100).parallel()
Review comment:
If single-region table, will this produce a null RegionLocation? Should
there be something going on in the background clearing tableCache?
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