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HBASE-27819 10k RpcServer.MAX_REQUEST_SIZE is not enough in Replicati…
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…onDroppedTable related tests (apache#5208)

Also modified the tests so we will only start the cluster once instead
of start it in setUpBeforeClass and then restart it when running the
actual test method

Signed-off-by: Liangjun He <heliangjun@apache.org>
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@Apache9
Apache9 authored May 1, 2023
1 parent 1f605cc commit 21d61cf
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Showing 5 changed files with 50 additions and 75 deletions.
79 changes: 25 additions & 54 deletions ...r/src/test/java/org/apache/hadoop/hbase/replication/ReplicationDroppedTablesTestBase.java
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Expand Up @@ -21,6 +21,7 @@
import static org.junit.Assert.fail;

import java.io.IOException;
import java.util.concurrent.ThreadLocalRandom;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Admin;
Expand All @@ -36,9 +37,7 @@
import org.apache.hadoop.hbase.client.TableDescriptorBuilder;
import org.apache.hadoop.hbase.ipc.RpcServer;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.hbase.util.JVMClusterUtil;
import org.junit.Assert;
import org.junit.Before;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

Expand All @@ -48,66 +47,40 @@
public class ReplicationDroppedTablesTestBase extends TestReplicationBase {

private static final Logger LOG = LoggerFactory.getLogger(ReplicationDroppedTablesTestBase.class);

protected static final int ROWS_COUNT = 1000;

@Before
@Override
public void setUpBase() throws Exception {
// Starting and stopping replication can make us miss new logs,
// rolling like this makes sure the most recent one gets added to the queue
for (JVMClusterUtil.RegionServerThread r : UTIL1.getHBaseCluster().getRegionServerThreads()) {
UTIL1.getAdmin().rollWALWriter(r.getRegionServer().getServerName());
}
// Initialize the peer after wal rolling, so that we will abandon the stuck WALs.
super.setUpBase();
int rowCount = UTIL1.countRows(tableName);
UTIL1.deleteTableData(tableName);
// truncating the table will send one Delete per row to the slave cluster
// in an async fashion, which is why we cannot just call deleteTableData on
// utility2 since late writes could make it to the slave in some way.
// Instead, we truncate the first table and wait for all the Deletes to
// make it to the slave.
Scan scan = new Scan();
int lastCount = 0;
for (int i = 0; i < NB_RETRIES; i++) {
if (i == NB_RETRIES - 1) {
fail("Waited too much time for truncate");
}
ResultScanner scanner = htable2.getScanner(scan);
Result[] res = scanner.next(rowCount);
scanner.close();
if (res.length != 0) {
if (res.length < lastCount) {
i--; // Don't increment timeout if we make progress
}
lastCount = res.length;
LOG.info("Still got " + res.length + " rows");
Thread.sleep(SLEEP_TIME);
} else {
break;
}
}
protected static byte[] VALUE;

private static boolean ALLOW_PROCEEDING;

protected static void setupClusters(boolean allowProceeding) throws Exception {
// Set the max request size to a tiny 10K for dividing the replication WAL entries into multiple
// batches. the default max request size is 256M, so all replication entries are in a batch, but
// when replicate at sink side, it'll apply to rs group by table name, so the WAL of test table
// may apply first, and then test_dropped table, and we will believe that the replication is not
// got stuck (HBASE-20475).
CONF1.setInt(RpcServer.MAX_REQUEST_SIZE, 10 * 1024);
// we used to use 10K but the regionServerReport is greater than this limit in this test which
// makes this test fail, increase to 64K
CONF1.setInt(RpcServer.MAX_REQUEST_SIZE, 64 * 1024);
// set a large value size to make sure we will split the replication to several batches
VALUE = new byte[4096];
ThreadLocalRandom.current().nextBytes(VALUE);
// make sure we have a single region server only, so that all
// edits for all tables go there
NUM_SLAVES1 = 1;
NUM_SLAVES2 = 1;
ALLOW_PROCEEDING = allowProceeding;
CONF1.setBoolean(REPLICATION_DROP_ON_DELETED_TABLE_KEY, allowProceeding);
CONF1.setInt(HConstants.REPLICATION_SOURCE_MAXTHREADS_KEY, 1);
TestReplicationBase.setUpBeforeClass();
}

protected final byte[] generateRowKey(int id) {
return Bytes.toBytes(String.format("NormalPut%03d", id));
}

protected final void testEditsBehindDroppedTable(boolean allowProceeding, String tName)
throws Exception {
CONF1.setBoolean(REPLICATION_DROP_ON_DELETED_TABLE_KEY, allowProceeding);
CONF1.setInt(HConstants.REPLICATION_SOURCE_MAXTHREADS_KEY, 1);

// make sure we have a single region server only, so that all
// edits for all tables go there
restartSourceCluster(1);

protected final void testEditsBehindDroppedTable(String tName) throws Exception {
TableName tablename = TableName.valueOf(tName);
byte[] familyName = Bytes.toBytes("fam");
byte[] row = Bytes.toBytes("row");
Expand Down Expand Up @@ -137,13 +110,13 @@ protected final void testEditsBehindDroppedTable(boolean allowProceeding, String
try (Table droppedTable = connection1.getTable(tablename)) {
byte[] rowKey = Bytes.toBytes(0 + " put on table to be dropped");
Put put = new Put(rowKey);
put.addColumn(familyName, row, row);
put.addColumn(familyName, row, VALUE);
droppedTable.put(put);
}

try (Table table1 = connection1.getTable(tableName)) {
for (int i = 0; i < ROWS_COUNT; i++) {
Put put = new Put(generateRowKey(i)).addColumn(famName, row, row);
Put put = new Put(generateRowKey(i)).addColumn(famName, row, VALUE);
table1.put(put);
}
}
Expand All @@ -161,14 +134,12 @@ protected final void testEditsBehindDroppedTable(boolean allowProceeding, String
admin1.enableReplicationPeer(PEER_ID2);
}

if (allowProceeding) {
if (ALLOW_PROCEEDING) {
// in this we'd expect the key to make it over
verifyReplicationProceeded();
} else {
verifyReplicationStuck();
}
// just to be safe
CONF1.setBoolean(REPLICATION_DROP_ON_DELETED_TABLE_KEY, false);
}

private boolean peerHasAllNormalRows() throws IOException {
Expand Down
18 changes: 6 additions & 12 deletions .../src/test/java/org/apache/hadoop/hbase/replication/TestEditsBehindDroppedTableTiming.java
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Expand Up @@ -17,8 +17,6 @@
*/
package org.apache.hadoop.hbase.replication;

import static org.apache.hadoop.hbase.replication.regionserver.HBaseInterClusterReplicationEndpoint.REPLICATION_DROP_ON_DELETED_TABLE_KEY;

import org.apache.hadoop.hbase.HBaseClassTestRule;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.TableName;
Expand All @@ -33,6 +31,7 @@
import org.apache.hadoop.hbase.testclassification.LargeTests;
import org.apache.hadoop.hbase.testclassification.ReplicationTests;
import org.apache.hadoop.hbase.util.Bytes;
import org.junit.BeforeClass;
import org.junit.ClassRule;
import org.junit.Test;
import org.junit.experimental.categories.Category;
Expand All @@ -44,14 +43,9 @@ public class TestEditsBehindDroppedTableTiming extends ReplicationDroppedTablesT
public static final HBaseClassTestRule CLASS_RULE =
HBaseClassTestRule.forClass(TestEditsBehindDroppedTableTiming.class);

@Override
public void setUpBase() throws Exception {
CONF1.setBoolean(REPLICATION_DROP_ON_DELETED_TABLE_KEY, true);
CONF1.setInt(HConstants.REPLICATION_SOURCE_MAXTHREADS_KEY, 1);
super.setUpBase();
// make sure we have a single region server only, so that all
// edits for all tables go there
restartSourceCluster(1);
@BeforeClass
public static void setUpBeforeClass() throws Exception {
setupClusters(true);
}

@Test
Expand Down Expand Up @@ -85,13 +79,13 @@ public void testEditsBehindDroppedTableTiming() throws Exception {
try (Table droppedTable = connection1.getTable(tablename)) {
byte[] rowKey = Bytes.toBytes(0 + " put on table to be dropped");
Put put = new Put(rowKey);
put.addColumn(familyName, row, row);
put.addColumn(familyName, row, VALUE);
droppedTable.put(put);
}

try (Table table1 = connection1.getTable(tableName)) {
for (int i = 0; i < ROWS_COUNT; i++) {
Put put = new Put(generateRowKey(i)).addColumn(famName, row, row);
Put put = new Put(generateRowKey(i)).addColumn(famName, row, VALUE);
table1.put(put);
}
}
Expand Down
8 changes: 7 additions & 1 deletion ...r/src/test/java/org/apache/hadoop/hbase/replication/TestEditsDroppedWithDroppedTable.java
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Expand Up @@ -20,6 +20,7 @@
import org.apache.hadoop.hbase.HBaseClassTestRule;
import org.apache.hadoop.hbase.testclassification.LargeTests;
import org.apache.hadoop.hbase.testclassification.ReplicationTests;
import org.junit.BeforeClass;
import org.junit.ClassRule;
import org.junit.Test;
import org.junit.experimental.categories.Category;
Expand All @@ -31,11 +32,16 @@ public class TestEditsDroppedWithDroppedTable extends ReplicationDroppedTablesTe
public static final HBaseClassTestRule CLASS_RULE =
HBaseClassTestRule.forClass(TestEditsDroppedWithDroppedTable.class);

@BeforeClass
public static void setUpBeforeClass() throws Exception {
setupClusters(true);
}

@Test
public void testEditsDroppedWithDroppedTable() throws Exception {
// Make sure by default edits for dropped tables are themselves dropped when the
// table(s) in question have been deleted on both ends.
testEditsBehindDroppedTable(true, "test_dropped");
testEditsBehindDroppedTable("test_dropped");
}

}
11 changes: 5 additions & 6 deletions ...src/test/java/org/apache/hadoop/hbase/replication/TestEditsDroppedWithDroppedTableNS.java
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Expand Up @@ -21,7 +21,7 @@
import org.apache.hadoop.hbase.NamespaceDescriptor;
import org.apache.hadoop.hbase.testclassification.LargeTests;
import org.apache.hadoop.hbase.testclassification.ReplicationTests;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.ClassRule;
import org.junit.Test;
import org.junit.experimental.categories.Category;
Expand All @@ -33,17 +33,16 @@ public class TestEditsDroppedWithDroppedTableNS extends ReplicationDroppedTables
public static final HBaseClassTestRule CLASS_RULE =
HBaseClassTestRule.forClass(TestEditsDroppedWithDroppedTableNS.class);

@Before
@Override
public void setUpBase() throws Exception {
@BeforeClass
public static void setUpBeforeClass() throws Exception {
setupClusters(true);
// also try with a namespace
UTIL1.getAdmin().createNamespace(NamespaceDescriptor.create("NS").build());
UTIL2.getAdmin().createNamespace(NamespaceDescriptor.create("NS").build());
super.setUpBase();
}

@Test
public void testEditsDroppedWithDroppedTableNS() throws Exception {
testEditsBehindDroppedTable(true, "NS:test_dropped");
testEditsBehindDroppedTable("NS:test_dropped");
}
}
9 changes: 7 additions & 2 deletions ...r/src/test/java/org/apache/hadoop/hbase/replication/TestEditsStuckBehindDroppedTable.java
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Expand Up @@ -20,6 +20,7 @@
import org.apache.hadoop.hbase.HBaseClassTestRule;
import org.apache.hadoop.hbase.testclassification.LargeTests;
import org.apache.hadoop.hbase.testclassification.ReplicationTests;
import org.junit.BeforeClass;
import org.junit.ClassRule;
import org.junit.Test;
import org.junit.experimental.categories.Category;
Expand All @@ -31,11 +32,15 @@ public class TestEditsStuckBehindDroppedTable extends ReplicationDroppedTablesTe
public static final HBaseClassTestRule CLASS_RULE =
HBaseClassTestRule.forClass(TestEditsStuckBehindDroppedTable.class);

@BeforeClass
public static void setUpBeforeClass() throws Exception {
setupClusters(false);
}

@Test
public void testEditsStuckBehindDroppedTable() throws Exception {
// Sanity check Make sure by default edits for dropped tables stall the replication queue, even
// when the table(s) in question have been deleted on both ends.
testEditsBehindDroppedTable(false, "test_dropped");
testEditsBehindDroppedTable("test_dropped");
}

}

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