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HBASE-20822 TestAsyncNonMetaRegionLocator is flakey

This commit is contained in:
zhangduo 2018-07-08 21:12:27 +08:00
parent 6df7f2346c
commit b5222f88b2
2 changed files with 19 additions and 7 deletions
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5
hbase-client/src/main/java/org/apache/hadoop/hbase/client/AsyncNonMetaRegionLocator.java
View File

@ -334,14 +334,15 @@ class AsyncNonMetaRegionLocator {
private HRegionLocation locateRowBeforeInCache(TableCache tableCache, TableName tableName,
byte[] row) {
boolean isEmptyStopRow = isEmptyStopRow(row);
Map.Entry<byte[], HRegionLocation> entry =
isEmptyStopRow(row) ? tableCache.cache.lastEntry() : tableCache.cache.lowerEntry(row);
isEmptyStopRow ? tableCache.cache.lastEntry() : tableCache.cache.lowerEntry(row);
if (entry == null) {
return null;
}
HRegionLocation loc = entry.getValue();
if (isEmptyStopRow(loc.getRegion().getEndKey()) ||
Bytes.compareTo(loc.getRegion().getEndKey(), row) >= 0) {
(!isEmptyStopRow && Bytes.compareTo(loc.getRegion().getEndKey(), row) >= 0)) {
if (LOG.isTraceEnabled()) {
LOG.trace("Found " + loc + " in cache for '" + tableName + "', row='" +
Bytes.toStringBinary(row) + "', locateType=" + RegionLocateType.BEFORE);

21
hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestAsyncNonMetaRegionLocator.java
View File

@ -36,7 +36,6 @@ import java.util.stream.IntStream;
import org.apache.commons.io.IOUtils;
import org.apache.hadoop.hbase.HBaseClassTestRule;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.HRegionInfo;
import org.apache.hadoop.hbase.HRegionLocation;
import org.apache.hadoop.hbase.NotServingRegionException;
import org.apache.hadoop.hbase.ServerName;
@ -76,7 +75,7 @@ public class TestAsyncNonMetaRegionLocator {
@BeforeClass
public static void setUp() throws Exception {
TEST_UTIL.startMiniCluster(3);
TEST_UTIL.getAdmin().setBalancerRunning(false, true);
TEST_UTIL.getAdmin().balancerSwitch(false, true);
AsyncRegistry registry = AsyncRegistryFactory.getRegistry(TEST_UTIL.getConfiguration());
CONN = new AsyncConnectionImpl(TEST_UTIL.getConfiguration(), registry,
registry.getClusterId().get(), User.getCurrent());
@ -136,7 +135,7 @@ public class TestAsyncNonMetaRegionLocator {
private void assertLocEquals(byte[] startKey, byte[] endKey, ServerName serverName,
HRegionLocation loc) {
HRegionInfo info = loc.getRegionInfo();
RegionInfo info = loc.getRegion();
assertEquals(TABLE_NAME, info.getTable());
assertArrayEquals(startKey, info.getStartKey());
assertArrayEquals(endKey, info.getEndKey());
@ -240,7 +239,7 @@ public class TestAsyncNonMetaRegionLocator {
.map(t -> t.getRegionServer().getServerName()).filter(sn -> !sn.equals(serverName))
.findAny().get();
TEST_UTIL.getAdmin().move(Bytes.toBytes(loc.getRegionInfo().getEncodedName()),
TEST_UTIL.getAdmin().move(Bytes.toBytes(loc.getRegion().getEncodedName()),
Bytes.toBytes(newServerName.getServerName()));
while (!TEST_UTIL.getRSForFirstRegionInTable(TABLE_NAME).getServerName()
.equals(newServerName)) {
@ -316,7 +315,7 @@ public class TestAsyncNonMetaRegionLocator {
.map(t -> t.getRegionServer().getServerName()).filter(sn -> !sn.equals(serverName))
.findAny().get();
Admin admin = TEST_UTIL.getAdmin();
HRegionInfo region = admin.getTableRegions(TABLE_NAME).stream().findAny().get();
RegionInfo region = admin.getRegions(TABLE_NAME).stream().findAny().get();
admin.move(region.getEncodedNameAsBytes(), Bytes.toBytes(newServerName.getServerName()));
TEST_UTIL.waitFor(30000, new ExplainingPredicate<Exception>() {
@ -346,4 +345,16 @@ public class TestAsyncNonMetaRegionLocator {
LOCATOR.getRegionLocation(TABLE_NAME, EMPTY_START_ROW, locateType, false).get());
}
}
// Testcase for HBASE-20822
@Test
public void testLocateBeforeLastRegion()
throws IOException, InterruptedException, ExecutionException {
createMultiRegionTable();
LOCATOR.getRegionLocation(TABLE_NAME, SPLIT_KEYS[0], RegionLocateType.CURRENT, false).join();
HRegionLocation loc =
LOCATOR.getRegionLocation(TABLE_NAME, EMPTY_END_ROW, RegionLocateType.BEFORE, false).get();
// should locate to the last region
assertArrayEquals(loc.getRegion().getEndKey(), EMPTY_END_ROW);
}
}