YARN-5434. Add -client|server argument for graceful decommmission. Contributed by Robert Kanter.
This commit is contained in:
Junping Du
parent
204a2055b1
commit
95f2b98597
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@ -98,11 +98,17 @@ public class RMAdminCLI extends HAAdmin {
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"Reload the queues' acls, states and scheduler specific " +
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"properties. \n\t\tResourceManager will reload the " +
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"mapred-queues configuration file."))
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.put("-refreshNodes", new UsageInfo("[-g [timeout in seconds]]",
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.put("-refreshNodes",
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new UsageInfo("[-g [timeout in seconds] -client|server]",
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"Refresh the hosts information at the ResourceManager. Here "
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+ "[-g [timeout in seconds] is optional, if we specify the "
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+ "timeout then ResourceManager will wait for timeout before "
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+ "marking the NodeManager as decommissioned."))
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+ "[-g [timeout in seconds] -client|server] is optional, if we "
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+ "specify the timeout then ResourceManager will wait for "
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+ "timeout before marking the NodeManager as decommissioned."
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+ " The -client|server indicates if the timeout tracking should"
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+ " be handled by the client or the ResourceManager. The client"
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+ "-side tracking is blocking, while the server-side tracking"
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+ " is not. Omitting the timeout, or a timeout of -1, indicates"
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+ " an infinite timeout."))
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.put("-refreshNodesResources", new UsageInfo("",
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"Refresh resources of NodeManagers at the ResourceManager."))
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.put("-refreshSuperUserGroupsConfiguration", new UsageInfo("",
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@ -230,7 +236,7 @@ public class RMAdminCLI extends HAAdmin {
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summary.append("The full syntax is: \n\n" +
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"yarn rmadmin" +
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" [-refreshQueues]" +
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" [-refreshNodes [-g [timeout in seconds]]]" +
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" [-refreshNodes [-g [timeout in seconds] -client|server]]" +
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" [-refreshNodesResources]" +
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" [-refreshSuperUserGroupsConfiguration]" +
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" [-refreshUserToGroupsMappings]" +
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@ -312,7 +318,12 @@ public class RMAdminCLI extends HAAdmin {
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return 0;
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}
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private int refreshNodes(long timeout) throws IOException, YarnException {
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private int refreshNodes(long timeout, String trackingMode)
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throws IOException, YarnException {
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if (!"client".equals(trackingMode)) {
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throw new UnsupportedOperationException(
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"Only client tracking mode is currently supported.");
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}
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// Graceful decommissioning with timeout
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ResourceManagerAdministrationProtocol adminProtocol = createAdminProtocol();
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RefreshNodesRequest gracefulRequest = RefreshNodesRequest
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@ -721,11 +732,18 @@ public class RMAdminCLI extends HAAdmin {
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} else if ("-refreshNodes".equals(cmd)) {
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if (args.length == 1) {
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exitCode = refreshNodes();
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} else if (args.length == 3) {
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} else if (args.length == 3 || args.length == 4) {
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// if the graceful timeout specified
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if ("-g".equals(args[1])) {
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long timeout = validateTimeout(args[2]);
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exitCode = refreshNodes(timeout);
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long timeout = -1;
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String trackingMode;
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if (args.length == 4) {
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timeout = validateTimeout(args[2]);
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trackingMode = validateTrackingMode(args[3]);
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} else {
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trackingMode = validateTrackingMode(args[2]);
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}
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exitCode = refreshNodes(timeout, trackingMode);
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} else {
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printUsage(cmd, isHAEnabled);
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return -1;
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@ -838,6 +856,16 @@ public class RMAdminCLI extends HAAdmin {
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return timeout;
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}
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private String validateTrackingMode(String mode) {
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if ("-client".equals(mode)) {
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return "client";
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}
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if ("-server".equals(mode)) {
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return "server";
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}
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throw new IllegalArgumentException("Invalid mode specified: " + mode);
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}
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@Override
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public void setConf(Configuration conf) {
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if (conf != null) {
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@ -26,6 +26,7 @@ import static org.mockito.Matchers.any;
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import static org.mockito.Matchers.anyInt;
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import static org.mockito.Matchers.argThat;
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import static org.mockito.Matchers.eq;
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import static org.mockito.Mockito.atLeastOnce;
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import static org.mockito.Mockito.mock;
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import static org.mockito.Mockito.never;
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import static org.mockito.Mockito.times;
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@ -255,9 +256,9 @@ public class TestRMAdminCLI {
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}
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@Test
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public void testRefreshNodesWithGracefulTimeout() throws Exception {
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public void testRefreshNodesGracefulBeforeTimeout() throws Exception {
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// graceful decommission before timeout
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String[] args = { "-refreshNodes", "-g", "1" };
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String[] args = {"-refreshNodes", "-g", "1", "-client"};
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CheckForDecommissioningNodesResponse response = Records
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.newRecord(CheckForDecommissioningNodesResponse.class);
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HashSet<NodeId> decomNodes = new HashSet<NodeId>();
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@ -267,30 +268,91 @@ public class TestRMAdminCLI {
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assertEquals(0, rmAdminCLI.run(args));
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verify(admin).refreshNodes(
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RefreshNodesRequest.newInstance(DecommissionType.GRACEFUL));
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verify(admin, never()).refreshNodes(
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RefreshNodesRequest.newInstance(DecommissionType.FORCEFUL));
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}
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@Test
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public void testRefreshNodesGracefulHitTimeout() throws Exception {
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// Forceful decommission when timeout occurs
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String[] focefulDecomArgs = { "-refreshNodes", "-g", "1" };
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decomNodes = new HashSet<NodeId>();
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String[] forcefulDecomArgs = {"-refreshNodes", "-g", "1", "-client"};
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HashSet<NodeId> decomNodes = new HashSet<NodeId>();
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CheckForDecommissioningNodesResponse response = Records
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.newRecord(CheckForDecommissioningNodesResponse.class);
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response.setDecommissioningNodes(decomNodes);
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decomNodes.add(NodeId.newInstance("node1", 100));
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response.setDecommissioningNodes(decomNodes);
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when(admin.checkForDecommissioningNodes(any(
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CheckForDecommissioningNodesRequest.class))).thenReturn(response);
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assertEquals(0, rmAdminCLI.run(focefulDecomArgs));
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assertEquals(0, rmAdminCLI.run(forcefulDecomArgs));
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verify(admin).refreshNodes(
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RefreshNodesRequest.newInstance(DecommissionType.FORCEFUL));
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}
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@Test
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public void testRefreshNodesGracefulInfiniteTimeout() throws Exception {
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String[] infiniteTimeoutArgs = {"-refreshNodes", "-g", "-1", "-client"};
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testRefreshNodesGracefulInfiniteTimeout(infiniteTimeoutArgs);
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}
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@Test
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public void testRefreshNodesGracefulNoTimeout() throws Exception {
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// no timeout (infinite timeout)
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String[] noTimeoutArgs = {"-refreshNodes", "-g", "-client"};
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testRefreshNodesGracefulInfiniteTimeout(noTimeoutArgs);
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}
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private void testRefreshNodesGracefulInfiniteTimeout(String[] args)
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throws Exception {
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when(admin.checkForDecommissioningNodes(any(
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CheckForDecommissioningNodesRequest.class))).thenAnswer(
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new Answer<CheckForDecommissioningNodesResponse>() {
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private int count = 5;
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@Override
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public CheckForDecommissioningNodesResponse answer(
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InvocationOnMock invocationOnMock) throws Throwable {
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CheckForDecommissioningNodesResponse response = Records
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.newRecord(CheckForDecommissioningNodesResponse.class);
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HashSet<NodeId> decomNodes = new HashSet<NodeId>();
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count--;
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if (count <= 0) {
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response.setDecommissioningNodes(decomNodes);
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return response;
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} else {
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decomNodes.add(NodeId.newInstance("node1", 100));
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response.setDecommissioningNodes(decomNodes);
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return response;
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}
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}
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});
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assertEquals(0, rmAdminCLI.run(args));
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verify(admin, atLeastOnce()).refreshNodes(
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RefreshNodesRequest.newInstance(DecommissionType.GRACEFUL));
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verify(admin, never()).refreshNodes(
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RefreshNodesRequest.newInstance(DecommissionType.FORCEFUL));
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}
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@Test
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public void testRefreshNodesGracefulInvalidArgs() throws Exception {
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// invalid graceful timeout parameter
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String[] invalidArgs = { "-refreshNodes", "-ginvalid", "invalid" };
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String[] invalidArgs = {"-refreshNodes", "-ginvalid", "invalid", "-client"};
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assertEquals(-1, rmAdminCLI.run(invalidArgs));
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// invalid timeout
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String[] invalidTimeoutArgs = { "-refreshNodes", "-g", "invalid" };
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String[] invalidTimeoutArgs = {"-refreshNodes", "-g", "invalid", "-client"};
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assertEquals(-1, rmAdminCLI.run(invalidTimeoutArgs));
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// negative timeout
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String[] negativeTimeoutArgs = { "-refreshNodes", "-g", "-1000" };
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String[] negativeTimeoutArgs = {"-refreshNodes", "-g", "-1000", "-client"};
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assertEquals(-1, rmAdminCLI.run(negativeTimeoutArgs));
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// server tracking mode
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String[] serveTrackingrArgs = {"-refreshNodes", "-g", "1", "-server"};
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assertEquals(-1, rmAdminCLI.run(serveTrackingrArgs));
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// invalid tracking mode
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String[] invalidTrackingArgs = {"-refreshNodes", "-g", "1", "-foo"};
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assertEquals(-1, rmAdminCLI.run(invalidTrackingArgs));
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}
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@Test(timeout=500)
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@ -404,8 +466,8 @@ public class TestRMAdminCLI {
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.toString()
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.contains(
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"yarn rmadmin [-refreshQueues] [-refreshNodes [-g [timeout in " +
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"seconds]]] [-refreshNodesResources] [-refreshSuperUserGroups" +
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"Configuration] [-refreshUserToGroupsMappings] " +
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"seconds] -client|server]] [-refreshNodesResources] [-refresh" +
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"SuperUserGroupsConfiguration] [-refreshUserToGroupsMappings] " +
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"[-refreshAdminAcls] [-refreshServiceAcl] [-getGroup " +
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"[username]] [-addToClusterNodeLabels " +
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"<\"label1(exclusive=true),label2(exclusive=false),label3\">] " +
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@ -423,8 +485,8 @@ public class TestRMAdminCLI {
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assertTrue(dataOut
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.toString()
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.contains(
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"-refreshNodes [-g [timeout in seconds]]: Refresh the hosts information at the " +
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"ResourceManager."));
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"-refreshNodes [-g [timeout in seconds] -client|server]: " +
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"Refresh the hosts information at the ResourceManager."));
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assertTrue(dataOut
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.toString()
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.contains(
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@ -456,7 +518,8 @@ public class TestRMAdminCLI {
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testError(new String[] { "-help", "-refreshQueues" },
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"Usage: yarn rmadmin [-refreshQueues]", dataErr, 0);
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testError(new String[] { "-help", "-refreshNodes" },
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"Usage: yarn rmadmin [-refreshNodes [-g [timeout in seconds]]]", dataErr, 0);
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"Usage: yarn rmadmin [-refreshNodes [-g [timeout in seconds] " +
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"-client|server]]", dataErr, 0);
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testError(new String[] { "-help", "-refreshNodesResources" },
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"Usage: yarn rmadmin [-refreshNodesResources]", dataErr, 0);
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testError(new String[] { "-help", "-refreshUserToGroupsMappings" },
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@ -495,7 +558,8 @@ public class TestRMAdminCLI {
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assertEquals(0, rmAdminCLIWithHAEnabled.run(args));
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oldOutPrintStream.println(dataOut);
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String expectedHelpMsg =
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"yarn rmadmin [-refreshQueues] [-refreshNodes [-g [timeout in seconds]]] "
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"yarn rmadmin [-refreshQueues] [-refreshNodes [-g [timeout in "
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+ "seconds] -client|server]] "
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+ "[-refreshNodesResources] [-refreshSuperUserGroupsConfiguration] "
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+ "[-refreshUserToGroupsMappings] "
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+ "[-refreshAdminAcls] [-refreshServiceAcl] [-getGroup"
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