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HBASE-26942 cache region locations when getAllRegionLocations #4357

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Merged
merged 1 commit into from
Apr 22, 2022
Merged

HBASE-26942 cache region locations when getAllRegionLocations #4357

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2 changes: 1 addition & 1 deletion hbase-client/src/main/java/org/apache/hadoop/hbase/client/AsyncNonMetaRegionLocator.java
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Original file line number Diff line number Diff line change
Expand Up @@ -649,7 +649,7 @@ private void removeLocationFromCache(HRegionLocation loc) {
}
}

private void addLocationToCache(HRegionLocation loc) {
void addLocationToCache(HRegionLocation loc) {
addToCache(getTableCache(loc.getRegion().getTable()), createRegionLocations(loc));
}

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9 changes: 7 additions & 2 deletions hbase-client/src/main/java/org/apache/hadoop/hbase/client/AsyncTableRegionLocatorImpl.java
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Expand Up @@ -17,6 +17,8 @@
*/
package org.apache.hadoop.hbase.client;

import static org.apache.hadoop.hbase.util.FutureUtils.addListener;

import java.util.Arrays;
import java.util.List;
import java.util.concurrent.CompletableFuture;
Expand Down Expand Up @@ -58,8 +60,11 @@ public CompletableFuture<List<HRegionLocation>> getAllRegionLocations() {
return conn.registry.getMetaRegionLocations()
.thenApply(locs -> Arrays.asList(locs.getRegionLocations()));
}
return AsyncMetaTableAccessor.getTableHRegionLocations(conn.getTable(TableName.META_TABLE_NAME),
tableName);
CompletableFuture<List<HRegionLocation>> future = AsyncMetaTableAccessor
.getTableHRegionLocations(conn.getTable(TableName.META_TABLE_NAME), tableName);
addListener(future, (locs, error) -> locs.forEach(loc -> conn.getLocator()
.getNonMetaRegionLocator().addLocationToCache(loc)));
return future;
}

@Override
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14 changes: 14 additions & 0 deletions hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestAsyncNonMetaRegionLocator.java
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Expand Up @@ -25,6 +25,7 @@
import static org.hamcrest.MatcherAssert.assertThat;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertSame;

import java.io.IOException;
Expand Down Expand Up @@ -466,4 +467,17 @@ public void testConcurrentUpdateCachedLocationOnError() throws Exception {
IntStream.range(0, 100).parallel()
.forEach(i -> LOCATOR.updateCachedLocationOnError(loc, new NotServingRegionException()));
}

@Test
public void testCacheLocationWhenGetAllLocations() throws Exception {
createMultiRegionTable();
AsyncConnectionImpl conn = (AsyncConnectionImpl)
ConnectionFactory.createAsyncConnection(TEST_UTIL.getConfiguration()).get();
conn.getRegionLocator(TABLE_NAME).getAllRegionLocations().get();
List<RegionInfo> regions = TEST_UTIL.getAdmin().getRegions(TABLE_NAME);
for (RegionInfo region : regions) {
assertNotNull(conn.getLocator().getNonMetaRegionLocator()
.getRegionLocationInCache(TABLE_NAME, region.getStartKey()));
}
}
}