HBASE-6811 TestDrainingServer#testDrainingServerWithAbort sometimes fails in trunk

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1427739 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
nkeywal 2013-01-02 11:06:12 +00:00
parent 74a23195f8
commit 1a7e1a2090
1 changed files with 57 additions and 46 deletions

View File

@ -27,8 +27,6 @@ import junit.framework.Assert;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.hbase.client.HBaseAdmin;
import org.apache.hadoop.hbase.master.HMaster;
import org.apache.hadoop.hbase.protobuf.RequestConverter;
import org.apache.hadoop.hbase.master.ServerManager;
@ -36,8 +34,7 @@ import org.apache.hadoop.hbase.protobuf.ProtobufUtil;
import org.apache.hadoop.hbase.regionserver.HRegion;
import org.apache.hadoop.hbase.regionserver.HRegionServer;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.hbase.util.FSUtils;
import org.apache.hadoop.hbase.util.FSTableDescriptors;
import org.apache.hadoop.hbase.util.JVMClusterUtil;
import org.apache.hadoop.hbase.zookeeper.ZKAssign;
import org.apache.hadoop.hbase.zookeeper.ZKUtil;
import org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher;
@ -47,21 +44,21 @@ import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import com.google.protobuf.ServiceException;
/**
* Test the draining servers feature.
*
* This is typically an integration test: a unit test would be to check that the
* master does no assign regions to a regionserver marked as drained.
*
* @see <a href="https://issues.apache.org/jira/browse/HBASE-4298">HBASE-4298</a>
*/
@Category(MediumTests.class)
public class TestDrainingServer {
private static final Log LOG = LogFactory.getLog(TestDrainingServer.class);
private static final HBaseTestingUtility TEST_UTIL =
new HBaseTestingUtility();
private static final byte [] TABLENAME = Bytes.toBytes("t");
private static final byte [] FAMILY = Bytes.toBytes("f");
private static final int COUNT_OF_REGIONS = HBaseTestingUtility.KEYS.length;
private static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
private static final int NB_SLAVES = 5;
private static final int COUNT_OF_REGIONS = NB_SLAVES * 2;
/**
* Spin up a cluster with a bunch of regions on it.
@ -69,31 +66,25 @@ public class TestDrainingServer {
@BeforeClass
public static void setUpBeforeClass() throws Exception {
TEST_UTIL.startMiniCluster(NB_SLAVES);
TEST_UTIL.getHBaseCluster().waitForActiveAndReadyMaster();
TEST_UTIL.getConfiguration().setBoolean("hbase.master.enabletable.roundrobin", true);
ZooKeeperWatcher zkw = HBaseTestingUtility.getZooKeeperWatcher(TEST_UTIL);
HTableDescriptor htd = new HTableDescriptor(TABLENAME);
htd.addFamily(new HColumnDescriptor(FAMILY));
TEST_UTIL.createMultiRegionsInMeta(TEST_UTIL.getConfiguration(), htd,
HBaseTestingUtility.KEYS);
// Make a mark for the table in the filesystem.
FileSystem fs = FileSystem.get(TEST_UTIL.getConfiguration());
FSTableDescriptors.
createTableDescriptor(fs, FSUtils.getRootDir(TEST_UTIL.getConfiguration()), htd);
// Assign out the regions we just created.
HBaseAdmin admin = new HBaseAdmin(TEST_UTIL.getConfiguration());
MiniHBaseCluster cluster = TEST_UTIL.getMiniHBaseCluster();
admin.disableTable(TABLENAME);
admin.enableTable(TABLENAME);
final List<String> families = new ArrayList<String>(1);
families.add("family");
TEST_UTIL.createRandomTable("table", families, 1, 0, 0, COUNT_OF_REGIONS, 0);
// Ensure a stable env
TEST_UTIL.getHBaseAdmin().setBalancerRunning(false, false);
boolean ready = false;
while (!ready){
ZKAssign.blockUntilNoRIT(zkw);
waitForAllRegionsOnline();
// Assert that every regionserver has some regions on it.
int i = 0;
ready = true;
while (i < NB_SLAVES && ready){
HRegionServer hrs = cluster.getRegionServer(i);
HRegionServer hrs = TEST_UTIL.getMiniHBaseCluster().getRegionServer(i);
if (ProtobufUtil.getOnlineRegions(hrs).isEmpty()){
ready = false;
}
@ -101,7 +92,9 @@ public class TestDrainingServer {
}
if (!ready){
admin.balancer();
TEST_UTIL.getHBaseAdmin().setBalancerRunning(true, true);
Assert.assertTrue("Can't start a balance!", TEST_UTIL.getHBaseAdmin().balancer());
TEST_UTIL.getHBaseAdmin().setBalancerRunning(false, false);
Thread.sleep(100);
}
}
@ -135,12 +128,12 @@ public class TestDrainingServer {
/**
* Test adding server to draining servers and then move regions off it.
* Make sure that no regions are moved back to the draining server.
* @throws IOException
* @throws KeeperException
* @throws IOException
* @throws KeeperException
*/
@Test // (timeout=30000)
public void testDrainingServerOffloading()
throws IOException, KeeperException, ServiceException, DeserializationException {
throws Exception {
// I need master in the below.
HMaster master = TEST_UTIL.getMiniHBaseCluster().getMaster();
HRegionInfo hriToMoveBack = null;
@ -186,8 +179,6 @@ public class TestDrainingServer {
public void testDrainingServerWithAbort() throws KeeperException, Exception {
HMaster master = TEST_UTIL.getHBaseCluster().getMaster();
// Ensure a stable env
TEST_UTIL.getHBaseAdmin().setBalancerRunning(false, false);
waitForAllRegionsOnline();
final long regionCount = TEST_UTIL.getMiniHBaseCluster().countServedRegions();
@ -215,19 +206,21 @@ public class TestDrainingServer {
setDrainingServer(drainingServer);
//wait for the master to receive and manage the event
while (sm.createDestinationServersList().contains(drainingServer.getServerName())) ;
while (sm.createDestinationServersList().contains(drainingServer.getServerName())) {
Thread.sleep(1);
}
LOG.info("The available servers are: "+ sm.createDestinationServersList());
Assert.assertEquals("Nothing should have happened here.", regionsOnDrainingServer,
drainingServer.getNumberOfOnlineRegions());
Assert.assertFalse("We should not have regions in transition here. List is: "+
master.getAssignmentManager().getRegionStates().getRegionsInTransition(),
master.getAssignmentManager().getRegionStates().isRegionsInTransition());
Assert.assertFalse("We should not have regions in transition here. List is: " +
master.getAssignmentManager().getRegionStates().getRegionsInTransition(),
master.getAssignmentManager().getRegionStates().isRegionsInTransition());
// Kill a few regionservers.
for (int aborted = 0; aborted <= 2; aborted++) {
HRegionServer hrs = TEST_UTIL.getMiniHBaseCluster().getRegionServer(aborted+1);
HRegionServer hrs = TEST_UTIL.getMiniHBaseCluster().getRegionServer(aborted + 1);
hrs.abort("Aborting");
}
@ -235,8 +228,8 @@ public class TestDrainingServer {
waitForAllRegionsOnline();
Collection<HRegion> regionsAfter =
drainingServer.getCopyOfOnlineRegionsSortedBySize().values();
LOG.info("Regions of drained server are: "+ regionsAfter );
drainingServer.getCopyOfOnlineRegionsSortedBySize().values();
LOG.info("Regions of drained server are: " + regionsAfter);
Assert.assertEquals("Test conditions are not met: regions were" +
" created/deleted during the test. ",
@ -267,19 +260,37 @@ public class TestDrainingServer {
}
}
private void waitForAllRegionsOnline() {
private static void waitForAllRegionsOnline() throws Exception {
// Wait for regions to come back on line again.
while (!isAllRegionsOnline()) {
}
while (TEST_UTIL.getMiniHBaseCluster().getMaster().
getAssignmentManager().getRegionStates().isRegionsInTransition()) {
boolean done = false;
while (!done) {
Thread.sleep(1);
// Nothing in ZK RIT for a start
ZKAssign.blockUntilNoRIT(TEST_UTIL.getZooKeeperWatcher());
// Then we want all the regions to be marked as available...
if (!isAllRegionsOnline()) continue;
// And without any work in progress on the master side
if (TEST_UTIL.getMiniHBaseCluster().getMaster().
getAssignmentManager().getRegionStates().isRegionsInTransition()) continue;
// nor on the region server side
done = true;
for (JVMClusterUtil.RegionServerThread rs :
TEST_UTIL.getMiniHBaseCluster().getLiveRegionServerThreads()) {
if (!rs.getRegionServer().getRegionsInTransitionInRS().isEmpty()) {
done = false;
}
}
}
}
private boolean isAllRegionsOnline() {
private static boolean isAllRegionsOnline() {
return TEST_UTIL.getMiniHBaseCluster().countServedRegions() ==
(COUNT_OF_REGIONS + 2 /*catalog regions*/);
(COUNT_OF_REGIONS + 2 /*catalog regions*/);
}
}