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Posted to commits@hbase.apache.org by zh...@apache.org on 2019/11/05 06:34:59 UTC
[hbase] 05/14: HBASE-22809 Allow creating table in group when rs
group contains no live servers (#464)
This is an automated email from the ASF dual-hosted git repository.
zhangduo pushed a commit to branch HBASE-22514
in repository https://gitbox.apache.org/repos/asf/hbase.git
commit 225ee08c5bb39bc9770f034095b7e26683ea8352
Author: Duo Zhang <zh...@apache.org>
AuthorDate: Fri Aug 9 09:25:00 2019 +0800
HBASE-22809 Allow creating table in group when rs group contains no live servers (#464)
Signed-off-by: Guanghao Zhang <zg...@apache.org>
---
.../hadoop/hbase/rsgroup/RSGroupAdminEndpoint.java | 119 ++++++++++++---------
.../hadoop/hbase/rsgroup/TestRSGroupsAdmin1.java | 4 +-
.../hadoop/hbase/rsgroup/TestRSGroupsBasics.java | 42 --------
3 files changed, 71 insertions(+), 94 deletions(-)
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/rsgroup/RSGroupAdminEndpoint.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/rsgroup/RSGroupAdminEndpoint.java
index 3c4530f..a2a5623 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/rsgroup/RSGroupAdminEndpoint.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/rsgroup/RSGroupAdminEndpoint.java
@@ -21,11 +21,12 @@ import com.google.protobuf.Service;
import java.io.IOException;
import java.util.Collections;
import java.util.List;
+import java.util.Objects;
import java.util.Optional;
import java.util.Set;
+import java.util.function.Supplier;
import java.util.stream.Collectors;
import org.apache.hadoop.hbase.CoprocessorEnvironment;
-import org.apache.hadoop.hbase.HBaseIOException;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.NamespaceDescriptor;
import org.apache.hadoop.hbase.ServerName;
@@ -68,7 +69,7 @@ public class RSGroupAdminEndpoint implements MasterCoprocessor, MasterObserver {
groupInfoManager = RSGroupInfoManagerImpl.getInstance(master);
groupAdminServer = new RSGroupAdminServer(master, groupInfoManager);
Class<?> clazz =
- master.getConfiguration().getClass(HConstants.HBASE_MASTER_LOADBALANCER_CLASS, null);
+ master.getConfiguration().getClass(HConstants.HBASE_MASTER_LOADBALANCER_CLASS, null);
if (!RSGroupableBalancer.class.isAssignableFrom(clazz)) {
throw new IOException("Configured balancer does not support RegionServer groups.");
}
@@ -108,85 +109,101 @@ public class RSGroupAdminEndpoint implements MasterCoprocessor, MasterObserver {
@Override
public void postClearDeadServers(ObserverContext<MasterCoprocessorEnvironment> ctx,
- List<ServerName> servers, List<ServerName> notClearedServers) throws IOException {
+ List<ServerName> servers, List<ServerName> notClearedServers) throws IOException {
Set<Address> clearedServer =
- servers.stream().filter(server -> !notClearedServers.contains(server))
- .map(ServerName::getAddress).collect(Collectors.toSet());
+ servers.stream().filter(server -> !notClearedServers.contains(server))
+ .map(ServerName::getAddress).collect(Collectors.toSet());
if (!clearedServer.isEmpty()) {
groupAdminServer.removeServers(clearedServer);
}
}
- private void checkGroupExists(Optional<String> optGroupName) throws IOException {
+ private RSGroupInfo checkGroupExists(Optional<String> optGroupName, Supplier<String> forWhom)
+ throws IOException {
if (optGroupName.isPresent()) {
String groupName = optGroupName.get();
- if (groupAdminServer.getRSGroupInfo(groupName) == null) {
- throw new ConstraintException("Region server group " + groupName + " does not exit");
+ RSGroupInfo group = groupAdminServer.getRSGroupInfo(groupName);
+ if (group == null) {
+ throw new ConstraintException(
+ "Region server group " + groupName + " for " + forWhom.get() + " does not exit");
}
+ return group;
}
+ return null;
}
- private boolean rsgroupHasServersOnline(TableDescriptor desc) throws IOException {
- RSGroupInfo rsGroupInfo;
- Optional<String> optGroupName = desc.getRegionServerGroup();
- if (optGroupName.isPresent()) {
- String groupName = optGroupName.get();
- if (groupName.equals(RSGroupInfo.DEFAULT_GROUP)) {
- // do not check for default group
- return true;
- }
- rsGroupInfo = groupAdminServer.getRSGroupInfo(groupName);
- if (rsGroupInfo == null) {
- throw new ConstraintException(
- "RSGroup " + groupName + " for table " + desc.getTableName() + " does not exist");
- }
- } else {
- NamespaceDescriptor nd =
- master.getClusterSchema().getNamespace(desc.getTableName().getNamespaceAsString());
- String groupNameOfNs = nd.getConfigurationValue(RSGroupInfo.NAMESPACE_DESC_PROP_GROUP);
- if (groupNameOfNs == null || groupNameOfNs.equals(RSGroupInfo.DEFAULT_GROUP)) {
- // do not check for default group
- return true;
- }
- rsGroupInfo = groupAdminServer.getRSGroupInfo(groupNameOfNs);
- if (rsGroupInfo == null) {
- throw new ConstraintException("RSGroup " + groupNameOfNs + " for table " +
- desc.getTableName() + "(inherit from namespace) does not exist");
- }
+ private Optional<String> getNamespaceGroup(NamespaceDescriptor namespaceDesc) {
+ return Optional
+ .ofNullable(namespaceDesc.getConfigurationValue(RSGroupInfo.NAMESPACE_DESC_PROP_GROUP));
+ }
+
+ // Do not allow creating new tables/namespaces which has an empty rs group, expect the default rs
+ // group. Notice that we do not check for online servers, as this is not stable because region
+ // servers can die at any time.
+ private void checkGroupNotEmpty(RSGroupInfo rsGroupInfo, Supplier<String> forWhom)
+ throws ConstraintException {
+ if (rsGroupInfo == null || rsGroupInfo.getName().equals(RSGroupInfo.DEFAULT_GROUP)) {
+ // we do not have a rs group config or we explicitly set the rs group to default, then no need
+ // to check.
+ return;
+ }
+ if (rsGroupInfo.getServers().isEmpty()) {
+ throw new ConstraintException(
+ "No servers in the rsgroup " + rsGroupInfo.getName() + " for " + forWhom.get());
}
- return master.getServerManager().createDestinationServersList().stream()
- .anyMatch(onlineServer -> rsGroupInfo.containsServer(onlineServer.getAddress()));
}
@Override
public void preCreateTableAction(ObserverContext<MasterCoprocessorEnvironment> ctx,
- TableDescriptor desc, RegionInfo[] regions) throws IOException {
- checkGroupExists(desc.getRegionServerGroup());
- if (!desc.getTableName().isSystemTable() && !rsgroupHasServersOnline(desc)) {
- throw new HBaseIOException("No online servers in the rsgroup for " + desc);
+ TableDescriptor desc, RegionInfo[] regions) throws IOException {
+ if (desc.getTableName().isSystemTable()) {
+ // do not check for system tables as we may block the bootstrap.
+ return;
+ }
+ Supplier<String> forWhom = () -> "table " + desc.getTableName();
+ RSGroupInfo rsGroupInfo = checkGroupExists(desc.getRegionServerGroup(), forWhom);
+ if (rsGroupInfo == null) {
+ // we do not set rs group info on table, check if we have one on namespace
+ String namespace = desc.getTableName().getNamespaceAsString();
+ NamespaceDescriptor nd = master.getClusterSchema().getNamespace(namespace);
+ forWhom = () -> "table " + desc.getTableName() + "(inherit from namespace)";
+ rsGroupInfo = checkGroupExists(getNamespaceGroup(nd), forWhom);
}
+ checkGroupNotEmpty(rsGroupInfo, forWhom);
}
@Override
public TableDescriptor preModifyTable(ObserverContext<MasterCoprocessorEnvironment> ctx,
- TableName tableName, TableDescriptor currentDescriptor, TableDescriptor newDescriptor)
- throws IOException {
- checkGroupExists(newDescriptor.getRegionServerGroup());
+ TableName tableName, TableDescriptor currentDescriptor, TableDescriptor newDescriptor)
+ throws IOException {
+ if (!currentDescriptor.getRegionServerGroup().equals(newDescriptor.getRegionServerGroup())) {
+ Supplier<String> forWhom = () -> "table " + newDescriptor.getTableName();
+ RSGroupInfo rsGroupInfo = checkGroupExists(newDescriptor.getRegionServerGroup(), forWhom);
+ checkGroupNotEmpty(rsGroupInfo, forWhom);
+ }
return MasterObserver.super.preModifyTable(ctx, tableName, currentDescriptor, newDescriptor);
}
+ private void checkNamespaceGroup(NamespaceDescriptor nd) throws IOException {
+ Supplier<String> forWhom = () -> "namespace " + nd.getName();
+ RSGroupInfo rsGroupInfo = checkGroupExists(getNamespaceGroup(nd), forWhom);
+ checkGroupNotEmpty(rsGroupInfo, forWhom);
+ }
+
@Override
public void preCreateNamespace(ObserverContext<MasterCoprocessorEnvironment> ctx,
- NamespaceDescriptor ns) throws IOException {
- checkGroupExists(
- Optional.ofNullable(ns.getConfigurationValue(RSGroupInfo.NAMESPACE_DESC_PROP_GROUP)));
+ NamespaceDescriptor ns) throws IOException {
+ checkNamespaceGroup(ns);
}
@Override
public void preModifyNamespace(ObserverContext<MasterCoprocessorEnvironment> ctx,
- NamespaceDescriptor currentNsDescriptor, NamespaceDescriptor newNsDescriptor)
- throws IOException {
- checkGroupExists(Optional
- .ofNullable(newNsDescriptor.getConfigurationValue(RSGroupInfo.NAMESPACE_DESC_PROP_GROUP)));
+ NamespaceDescriptor currentNsDescriptor, NamespaceDescriptor newNsDescriptor)
+ throws IOException {
+ if (!Objects.equals(
+ currentNsDescriptor.getConfigurationValue(RSGroupInfo.NAMESPACE_DESC_PROP_GROUP),
+ newNsDescriptor.getConfigurationValue(RSGroupInfo.NAMESPACE_DESC_PROP_GROUP))) {
+ checkNamespaceGroup(newNsDescriptor);
+ }
}
}
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/rsgroup/TestRSGroupsAdmin1.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/rsgroup/TestRSGroupsAdmin1.java
index 7471458..aff591f 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/rsgroup/TestRSGroupsAdmin1.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/rsgroup/TestRSGroupsAdmin1.java
@@ -152,12 +152,14 @@ public class TestRSGroupsAdmin1 extends TestRSGroupsBase {
String nsName = tablePrefix + "_foo";
String groupName = tablePrefix + "_foo";
LOG.info("testNamespaceConstraint");
- rsGroupAdmin.addRSGroup(groupName);
+ addGroup(groupName, 1);
assertTrue(observer.preAddRSGroupCalled);
assertTrue(observer.postAddRSGroupCalled);
admin.createNamespace(NamespaceDescriptor.create(nsName)
.addConfiguration(RSGroupInfo.NAMESPACE_DESC_PROP_GROUP, groupName).build());
+ RSGroupInfo rsGroupInfo = rsGroupAdmin.getRSGroupInfo(groupName);
+ rsGroupAdmin.moveServers(rsGroupInfo.getServers(), RSGroupInfo.DEFAULT_GROUP);
// test removing a referenced group
try {
rsGroupAdmin.removeRSGroup(groupName);
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/rsgroup/TestRSGroupsBasics.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/rsgroup/TestRSGroupsBasics.java
index e3cb54e..67ed2a9 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/rsgroup/TestRSGroupsBasics.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/rsgroup/TestRSGroupsBasics.java
@@ -20,11 +20,8 @@ package org.apache.hadoop.hbase.rsgroup;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
-import static org.junit.Assert.fail;
import java.io.IOException;
-import java.util.ArrayList;
-import java.util.Iterator;
import java.util.List;
import java.util.Set;
import org.apache.hadoop.hbase.HBaseClassTestRule;
@@ -137,45 +134,6 @@ public class TestRSGroupsBasics extends TestRSGroupsBase {
}
@Test
- public void testCreateWhenRsgroupNoOnlineServers() throws Exception {
- LOG.info("testCreateWhenRsgroupNoOnlineServers");
-
- // set rsgroup has no online servers and test create table
- final RSGroupInfo appInfo = addGroup("appInfo", 1);
- Iterator<Address> iterator = appInfo.getServers().iterator();
- List<ServerName> serversToDecommission = new ArrayList<>();
- ServerName targetServer = getServerName(iterator.next());
- assertTrue(master.getServerManager().getOnlineServers().containsKey(targetServer));
- serversToDecommission.add(targetServer);
- admin.decommissionRegionServers(serversToDecommission, true);
- assertEquals(1, admin.listDecommissionedRegionServers().size());
-
- final TableName tableName = TableName.valueOf(tablePrefix + "_ns", name.getMethodName());
- admin.createNamespace(NamespaceDescriptor.create(tableName.getNamespaceAsString())
- .addConfiguration(RSGroupInfo.NAMESPACE_DESC_PROP_GROUP, appInfo.getName()).build());
- final TableDescriptor desc = TableDescriptorBuilder.newBuilder(tableName)
- .setColumnFamily(ColumnFamilyDescriptorBuilder.of("f")).build();
- try {
- admin.createTable(desc);
- fail("Shouldn't create table successfully!");
- } catch (Exception e) {
- LOG.debug("create table error", e);
- }
-
- // recommission and test create table
- admin.recommissionRegionServer(targetServer, null);
- assertEquals(0, admin.listDecommissionedRegionServers().size());
- admin.createTable(desc);
- // wait for created table to be assigned
- TEST_UTIL.waitFor(WAIT_TIMEOUT, new Waiter.Predicate<Exception>() {
- @Override
- public boolean evaluate() throws Exception {
- return getTableRegionMap().get(desc.getTableName()) != null;
- }
- });
- }
-
- @Test
public void testDefaultNamespaceCreateAndAssign() throws Exception {
LOG.info("testDefaultNamespaceCreateAndAssign");
String tableName = tablePrefix + "_testCreateAndAssign";