YARN-8103. Add CLI interface to query node attributes. Contributed by Bibin A Chundatt.

This commit is contained in:
Naganarasimha 2018-06-28 08:13:09 +08:00 committed by Sunil G
parent 76183428b7
commit eb08543c7a
23 changed files with 1067 additions and 470 deletions

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@ -19,6 +19,7 @@
package org.apache.hadoop.yarn.sls.nodemanager;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Set;
@ -220,16 +221,9 @@ public Map<String, Long> getAllocationTagsWithCount() {
return null;
}
@Override
public void setNodeAttributes(String prefix,
Set<NodeAttribute> nodeAttributes) {
}
@Override
public Map<String, Set<NodeAttribute>> getAllNodeAttributes() {
return null;
public Set<NodeAttribute> getAllNodeAttributes() {
return Collections.emptySet();
}
@Override

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@ -209,13 +209,7 @@ public Map<String, Long> getAllocationTagsWithCount() {
}
@Override
public void setNodeAttributes(String prefix,
Set<NodeAttribute> nodeAttributes) {
node.setNodeAttributes(prefix, nodeAttributes);
}
@Override
public Map<String, Set<NodeAttribute>> getAllNodeAttributes() {
public Set<NodeAttribute> getAllNodeAttributes() {
return node.getAllNodeAttributes();
}

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@ -55,7 +55,7 @@ function hadoop_usage
hadoop_add_subcommand "timelinereader" client "run the timeline reader server"
hadoop_add_subcommand "timelineserver" daemon "run the timeline server"
hadoop_add_subcommand "top" client "view cluster information"
hadoop_add_subcommand "node-attributes" "map node to attibutes"
hadoop_add_subcommand "nodeattributes" client "node attributes cli client"
hadoop_add_subcommand "version" client "print the version"
hadoop_generate_usage "${HADOOP_SHELL_EXECNAME}" true
}
@ -187,7 +187,7 @@ ${HADOOP_COMMON_HOME}/${HADOOP_COMMON_LIB_JARS_DIR}"
hadoop_add_classpath "$HADOOP_YARN_HOME/$YARN_DIR/timelineservice/lib/*"
HADOOP_CLASSNAME='org.apache.hadoop.yarn.server.timelineservice.reader.TimelineReaderServer'
;;
node-attributes)
nodeattributes)
HADOOP_SUBCMD_SUPPORTDAEMONIZATION="false"
HADOOP_CLASSNAME='org.apache.hadoop.yarn.client.cli.NodeAttributesCLI'
;;

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@ -258,4 +258,17 @@ public NodeUpdateType getNodeUpdateType() {
* Set the node update type (null indicates absent node update type).
* */
public void setNodeUpdateType(NodeUpdateType nodeUpdateType) {}
/**
* Set the node attributes of node.
*
* @param nodeAttributes set of node attributes.
*/
public abstract void setNodeAttributes(Set<NodeAttribute> nodeAttributes);
/**
* Get node attributes of node.
* @return the set of node attributes.
*/
public abstract Set<NodeAttribute> getNodeAttributes();
}

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@ -355,6 +355,7 @@ message NodeReportProto {
optional ResourceUtilizationProto node_utilization = 12;
optional uint32 decommissioning_timeout = 13;
optional NodeUpdateTypeProto node_update_type = 14;
repeated NodeAttributeProto node_attributes = 15;
}
message NodeIdToLabelsProto {

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@ -36,6 +36,7 @@
import org.apache.hadoop.classification.InterfaceAudience.Private;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.util.ToolRunner;
import org.apache.hadoop.yarn.api.records.NodeAttributeInfo;
import org.apache.hadoop.yarn.api.records.NodeLabel;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import org.apache.hadoop.yarn.exceptions.YarnException;
@ -52,6 +53,7 @@ public class ClusterCLI extends YarnCLI {
public static final String LIST_LABELS_CMD = "list-node-labels";
public static final String DIRECTLY_ACCESS_NODE_LABEL_STORE =
"directly-access-node-label-store";
public static final String LIST_CLUSTER_ATTRIBUTES="list-node-attributes";
public static final String CMD = "cluster";
private boolean accessLocal = false;
static CommonNodeLabelsManager localNodeLabelsManager = null;
@ -71,6 +73,8 @@ public int run(String[] args) throws Exception {
opts.addOption("lnl", LIST_LABELS_CMD, false,
"List cluster node-label collection");
opts.addOption("lna", LIST_CLUSTER_ATTRIBUTES, false,
"List cluster node-attribute collection");
opts.addOption("h", HELP_CMD, false, "Displays help for all commands.");
opts.addOption("dnl", DIRECTLY_ACCESS_NODE_LABEL_STORE, false,
"This is DEPRECATED, will be removed in future releases. Directly access node label store, "
@ -102,6 +106,8 @@ public int run(String[] args) throws Exception {
if (parsedCli.hasOption(LIST_LABELS_CMD)) {
printClusterNodeLabels();
} else if(parsedCli.hasOption(LIST_CLUSTER_ATTRIBUTES)){
printClusterNodeAttributes();
} else if (parsedCli.hasOption(HELP_CMD)) {
printUsage(opts);
return 0;
@ -112,6 +118,17 @@ public int run(String[] args) throws Exception {
return 0;
}
private void printClusterNodeAttributes() throws IOException, YarnException {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
PrintWriter pw = new PrintWriter(
new OutputStreamWriter(baos, Charset.forName("UTF-8")));
for (NodeAttributeInfo attribute : client.getClusterAttributes()) {
pw.println(attribute.toString());
}
pw.close();
sysout.println(baos.toString("UTF-8"));
}
void printClusterNodeLabels() throws YarnException, IOException {
List<NodeLabel> nodeLabels = null;
if (accessLocal) {

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@ -44,7 +44,6 @@
import org.apache.hadoop.yarn.api.records.NodeReport;
import org.apache.hadoop.yarn.api.records.NodeState;
import org.apache.hadoop.yarn.exceptions.YarnException;
import org.apache.hadoop.yarn.util.ConverterUtils;
@Private
@Unstable
@ -307,6 +306,18 @@ private void printNodeStatus(String nodeIdStr) throws YarnException,
Collections.sort(nodeLabelsList);
nodeReportStr.println(StringUtils.join(nodeLabelsList.iterator(), ','));
if (nodeReport.getNodeAttributes().size() > 0) {
ArrayList nodeAtrs = new ArrayList<>(nodeReport.getNodeAttributes());
nodeReportStr.print("\tNode Attributes : ");
nodeReportStr.println(nodeAtrs.get(0).toString());
for (int index = 1; index < nodeAtrs.size(); index++) {
nodeReportStr.println(
String.format("\t%18s%s", "", nodeAtrs.get(index).toString()));
}
} else {
nodeReportStr.println("\tNode Attributes : ");
}
nodeReportStr.print("\tResource Utilization by Node : ");
if (nodeReport.getNodeUtilization() != null) {
nodeReportStr.print("PMem:"

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@ -18,6 +18,9 @@
package org.apache.hadoop.yarn.client.cli;
import org.apache.hadoop.yarn.api.records.NodeAttributeInfo;
import org.apache.hadoop.yarn.api.records.NodeAttributeKey;
import org.apache.hadoop.yarn.api.records.NodeAttributeType;
import static org.junit.Assert.assertEquals;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.spy;
@ -74,7 +77,32 @@ public void testGetClusterNodeLabels() throws Exception {
pw.close();
verify(sysOut).println(baos.toString("UTF-8"));
}
@Test
public void testGetClusterNodeAttributes() throws Exception {
YarnClient client = mock(YarnClient.class);
when(client.getClusterAttributes()).thenReturn(ImmutableSet
.of(NodeAttributeInfo.newInstance(NodeAttributeKey.newInstance("GPU"),
NodeAttributeType.STRING), NodeAttributeInfo
.newInstance(NodeAttributeKey.newInstance("CPU"),
NodeAttributeType.STRING)));
ClusterCLI cli = new ClusterCLI();
cli.setClient(client);
cli.setSysOutPrintStream(sysOut);
cli.setSysErrPrintStream(sysErr);
int rc = cli.run(new String[] {ClusterCLI.CMD,
"-" + ClusterCLI.LIST_CLUSTER_ATTRIBUTES});
assertEquals(0, rc);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
PrintWriter pw = new PrintWriter(baos);
pw.println("rm.yarn.io/GPU(STRING)");
pw.println("rm.yarn.io/CPU(STRING)");
pw.close();
verify(sysOut).println(baos.toString("UTF-8"));
}
@Test
public void testGetClusterNodeLabelsWithLocalAccess() throws Exception {
YarnClient client = mock(YarnClient.class);
@ -157,6 +185,8 @@ public void testHelp() throws Exception {
pw.println(" option is UNSTABLE, could be");
pw.println(" removed in future releases.");
pw.println(" -h,--help Displays help for all commands.");
pw.println(" -lna,--list-node-attributes List cluster node-attribute");
pw.println(" collection");
pw.println(" -lnl,--list-node-labels List cluster node-label");
pw.println(" collection");
pw.close();

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@ -18,6 +18,20 @@
package org.apache.hadoop.yarn.client.cli;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import org.apache.hadoop.yarn.api.ApplicationClientProtocol;
import org.apache.hadoop.yarn.api.protocolrecords.GetAttributesToNodesRequest;
import org.apache.hadoop.yarn.api.protocolrecords.GetAttributesToNodesResponse;
import org.apache.hadoop.yarn.api.protocolrecords.GetClusterNodeAttributesRequest;
import org.apache.hadoop.yarn.api.protocolrecords.GetClusterNodeAttributesResponse;
import org.apache.hadoop.yarn.api.protocolrecords.GetNodesToAttributesRequest;
import org.apache.hadoop.yarn.api.protocolrecords.GetNodesToAttributesResponse;
import org.apache.hadoop.yarn.api.records.NodeAttributeInfo;
import org.apache.hadoop.yarn.api.records.NodeAttributeKey;
import org.apache.hadoop.yarn.api.records.NodeToAttributeValue;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import static org.mockito.Matchers.any;
@ -29,8 +43,8 @@
import java.io.PrintStream;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.yarn.api.records.NodeAttribute;
import org.apache.hadoop.yarn.api.records.NodeAttributeType;
import org.apache.hadoop.yarn.exceptions.YarnException;
@ -56,75 +70,122 @@ public class TestNodeAttributesCLI {
private static final Logger LOG =
LoggerFactory.getLogger(TestNodeAttributesCLI.class);
private ResourceManagerAdministrationProtocol admin;
private NodesToAttributesMappingRequest request;
private ApplicationClientProtocol client;
private NodesToAttributesMappingRequest nodeToAttrRequest;
private NodeAttributesCLI nodeAttributesCLI;
private ByteArrayOutputStream errOutBytes = new ByteArrayOutputStream();
private ByteArrayOutputStream sysOutBytes = new ByteArrayOutputStream();
private String errOutput;
private String sysOutput;
@Before
public void configure() throws IOException, YarnException {
admin = mock(ResourceManagerAdministrationProtocol.class);
client = mock(ApplicationClientProtocol.class);
when(admin.mapAttributesToNodes(any(NodesToAttributesMappingRequest.class)))
.thenAnswer(new Answer<NodesToAttributesMappingResponse>() {
@Override
public NodesToAttributesMappingResponse answer(
InvocationOnMock invocation) throws Throwable {
request =
nodeToAttrRequest =
(NodesToAttributesMappingRequest) invocation.getArguments()[0];
return NodesToAttributesMappingResponse.newInstance();
}
});
nodeAttributesCLI = new NodeAttributesCLI(new Configuration()) {
nodeAttributesCLI = new NodeAttributesCLI() {
@Override
protected ResourceManagerAdministrationProtocol createAdminProtocol()
throws IOException {
return admin;
protected AdminCommandHandler getAdminCommandHandler() {
return new AdminCommandHandler() {
@Override
protected ResourceManagerAdministrationProtocol createAdminProtocol()
throws IOException {
return admin;
}
};
}
@Override
protected ClientCommandHandler getClientCommandHandler() {
ClientCommandHandler handler = new ClientCommandHandler() {
@Override
protected ApplicationClientProtocol createApplicationProtocol()
throws IOException {
return client;
}
};
handler.setSysOut(new PrintStream(sysOutBytes));
return handler;
}
};
nodeAttributesCLI.setErrOut(new PrintStream(errOutBytes));
}
@Test
public void testHelp() throws Exception {
String[] args = new String[] { "-help", "-replace" };
String[] args = new String[] {"-help", "-replace"};
assertTrue("It should have succeeded help for replace", 0 == runTool(args));
assertOutputContains(
"-replace <\"node1:attribute[(type)][=value],attribute1"
+ "[=value],attribute2 node2:attribute2[=value],attribute3\"> :");
assertOutputContains("Replace the node to attributes mapping information at"
assertErrorContains("-replace <\"node1:attribute[(type)][=value],attribute1"
+ "[=value],attribute2 node2:attribute2[=value],attribute3\">");
assertErrorContains("Replace the node to attributes mapping information at"
+ " the ResourceManager with the new mapping. Currently supported"
+ " attribute type. And string is the default type too. Attribute value"
+ " if not specified for string type value will be considered as empty"
+ " string. Replaced node-attributes should not violate the existing"
+ " attribute to attribute type mapping.");
args = new String[] { "-help", "-remove" };
args = new String[] {"-help", "-remove"};
assertTrue("It should have succeeded help for replace", 0 == runTool(args));
assertOutputContains(
"-remove <\"node1:attribute,attribute1" + " node2:attribute2\"> :");
assertOutputContains("Removes the specified node to attributes mapping"
assertErrorContains(
"-remove <\"node1:attribute,attribute1" + " node2:attribute2\">");
assertErrorContains("Removes the specified node to attributes mapping"
+ " information at the ResourceManager");
args = new String[] { "-help", "-add" };
args = new String[] {"-help", "-add"};
assertTrue("It should have succeeded help for replace", 0 == runTool(args));
assertOutputContains("-add <\"node1:attribute[(type)][=value],"
+ "attribute1[=value],attribute2 node2:attribute2[=value],attribute3\">"
+ " :");
assertOutputContains("Adds or updates the node to attributes mapping"
assertErrorContains("-add <\"node1:attribute[(type)][=value],"
+ "attribute1[=value],attribute2 node2:attribute2[=value],"
+ "attribute3\">");
assertErrorContains("Adds or updates the node to attributes mapping"
+ " information at the ResourceManager. Currently supported attribute"
+ " type is string. And string is the default type too. Attribute value"
+ " if not specified for string type value will be considered as empty"
+ " string. Added or updated node-attributes should not violate the"
+ " existing attribute to attribute type mapping.");
args = new String[] { "-help", "-failOnUnknownNodes" };
args = new String[] {"-help", "-failOnUnknownNodes"};
assertTrue("It should have succeeded help for replace", 0 == runTool(args));
assertOutputContains("-failOnUnknownNodes :");
assertOutputContains("Can be used optionally along with other options. When"
+ " its set, it will fail if specified nodes are unknown.");
assertErrorContains("-failOnUnknownNodes");
assertErrorContains("Can be used optionally along with [add,remove,"
+ "replace] options. When set, command will fail if specified nodes "
+ "are unknown.");
args = new String[] {"-help", "-list"};
assertTrue("It should have succeeded help for replace", 0 == runTool(args));
assertErrorContains("-list");
assertErrorContains("List all attributes in cluster");
args = new String[] {"-help", "-nodes"};
assertTrue("It should have succeeded help for replace", 0 == runTool(args));
assertErrorContains("-nodes");
assertErrorContains(
"Works with [list] to specify node hostnames whose mappings "
+ "are required to be displayed.");
args = new String[] {"-help", "-attributes"};
assertTrue("It should have succeeded help for replace", 0 == runTool(args));
assertErrorContains("-attributes");
assertErrorContains(
"Works with [attributestonodes] to specify attributes whose mapping "
+ "are required to be displayed.");
args = new String[] {"-help", "-attributestonodes"};
assertTrue("It should have succeeded help for replace", 0 == runTool(args));
assertErrorContains("-attributestonodes");
assertErrorContains("Displays mapping of attributes to nodes and attribute "
+ "values grouped by attributes");
}
@Test
@ -133,62 +194,62 @@ public void testReplace() throws Exception {
// failure scenarios
// --------------------------------
// parenthesis not match
String[] args = new String[] { "-replace", "x(" };
String[] args = new String[] {"-replace", "x("};
assertTrue("It should have failed as no node is specified",
0 != runTool(args));
assertFailureMessageContains(NodeAttributesCLI.INVALID_MAPPING_ERR_MSG);
// parenthesis not match
args = new String[] { "-replace", "x:(=abc" };
args = new String[] {"-replace", "x:(=abc"};
assertTrue(
"It should have failed as no closing parenthesis is not specified",
0 != runTool(args));
assertFailureMessageContains(
"Attribute for node x is not properly configured : (=abc");
args = new String[] { "-replace", "x:()=abc" };
args = new String[] {"-replace", "x:()=abc"};
assertTrue("It should have failed as no type specified inside parenthesis",
0 != runTool(args));
assertFailureMessageContains(
"Attribute for node x is not properly configured : ()=abc");
args = new String[] { "-replace", ":x(string)" };
args = new String[] {"-replace", ":x(string)"};
assertTrue("It should have failed as no node is specified",
0 != runTool(args));
assertFailureMessageContains("Node name cannot be empty");
// Not expected key=value specifying inner parenthesis
args = new String[] { "-replace", "x:(key=value)" };
args = new String[] {"-replace", "x:(key=value)"};
assertTrue(0 != runTool(args));
assertFailureMessageContains(
"Attribute for node x is not properly configured : (key=value)");
// Should fail as no attributes specified
args = new String[] { "-replace" };
args = new String[] {"-replace"};
assertTrue("Should fail as no attribute mappings specified",
0 != runTool(args));
assertFailureMessageContains(NodeAttributesCLI.NO_MAPPING_ERR_MSG);
assertFailureMessageContains(NodeAttributesCLI.MISSING_ARGUMENT);
// no labels, should fail
args = new String[] { "-replace", "-failOnUnknownNodes",
"x:key(string)=value,key2=val2" };
args = new String[] {"-replace", "-failOnUnknownNodes",
"x:key(string)=value,key2=val2"};
assertTrue("Should fail as no attribute mappings specified for replace",
0 != runTool(args));
assertFailureMessageContains(NodeAttributesCLI.NO_MAPPING_ERR_MSG);
assertFailureMessageContains(NodeAttributesCLI.MISSING_ARGUMENT);
// no labels, should fail
args = new String[] { "-replace", " " };
args = new String[] {"-replace", " "};
assertTrue(0 != runTool(args));
assertFailureMessageContains(NodeAttributesCLI.NO_MAPPING_ERR_MSG);
args = new String[] { "-replace", ", " };
args = new String[] {"-replace", ", "};
assertTrue(0 != runTool(args));
assertFailureMessageContains(NodeAttributesCLI.INVALID_MAPPING_ERR_MSG);
// --------------------------------
// success scenarios
// --------------------------------
args = new String[] { "-replace",
"x:key(string)=value,key2=val2 y:key2=val23,key3 z:key4" };
args = new String[] {"-replace",
"x:key(string)=value,key2=val2 y:key2=val23,key3 z:key4"};
assertTrue("Should not fail as attribute has been properly mapped",
0 == runTool(args));
List<NodeToAttributes> nodeAttributesList = new ArrayList<>();
@ -221,10 +282,10 @@ public void testReplace() throws Exception {
.add(NodeAttribute.newInstance("key4", NodeAttributeType.STRING, ""));
nodeAttributesList.add(NodeToAttributes.newInstance("z", attributes));
NodesToAttributesMappingRequest expected =
NodesToAttributesMappingRequest.newInstance(
AttributeMappingOperationType.REPLACE, nodeAttributesList, false);
assertTrue(request.equals(expected));
NodesToAttributesMappingRequest expected = NodesToAttributesMappingRequest
.newInstance(AttributeMappingOperationType.REPLACE, nodeAttributesList,
false);
assertTrue(nodeToAttrRequest.equals(expected));
}
@Test
@ -233,16 +294,17 @@ public void testRemove() throws Exception {
// failure scenarios
// --------------------------------
// parenthesis not match
String[] args = new String[] { "-remove", "x:" };
String[] args = new String[] {"-remove", "x:"};
assertTrue("It should have failed as no node is specified",
0 != runTool(args));
assertFailureMessageContains(
"Attributes cannot be null or empty for Operation REMOVE on the node x");
"Attributes cannot be null or empty for Operation [remove] on the "
+ "node x");
// --------------------------------
// success scenarios
// --------------------------------
args =
new String[] { "-remove", "x:key2,key3 z:key4", "-failOnUnknownNodes" };
new String[] {"-remove", "x:key2,key3 z:key4", "-failOnUnknownNodes"};
assertTrue("Should not fail as attribute has been properly mapped",
0 == runTool(args));
List<NodeToAttributes> nodeAttributesList = new ArrayList<>();
@ -259,10 +321,10 @@ public void testRemove() throws Exception {
.add(NodeAttribute.newInstance("key4", NodeAttributeType.STRING, ""));
nodeAttributesList.add(NodeToAttributes.newInstance("z", attributes));
NodesToAttributesMappingRequest expected =
NodesToAttributesMappingRequest.newInstance(
AttributeMappingOperationType.REMOVE, nodeAttributesList, true);
assertTrue(request.equals(expected));
NodesToAttributesMappingRequest expected = NodesToAttributesMappingRequest
.newInstance(AttributeMappingOperationType.REMOVE, nodeAttributesList,
true);
assertTrue(nodeToAttrRequest.equals(expected));
}
@Test
@ -271,16 +333,16 @@ public void testAdd() throws Exception {
// failure scenarios
// --------------------------------
// parenthesis not match
String[] args = new String[] { "-add", "x:" };
String[] args = new String[] {"-add", "x:"};
assertTrue("It should have failed as no node is specified",
0 != runTool(args));
assertFailureMessageContains(
"Attributes cannot be null or empty for Operation ADD on the node x");
"Attributes cannot be null or empty for Operation [add] on the node x");
// --------------------------------
// success scenarios
// --------------------------------
args = new String[] { "-add", "x:key2=123,key3=abc z:key4(string)",
"-failOnUnknownNodes" };
args = new String[] {"-add", "x:key2=123,key3=abc z:key4(string)",
"-failOnUnknownNodes"};
assertTrue("Should not fail as attribute has been properly mapped",
0 == runTool(args));
List<NodeToAttributes> nodeAttributesList = new ArrayList<>();
@ -297,16 +359,16 @@ public void testAdd() throws Exception {
.add(NodeAttribute.newInstance("key4", NodeAttributeType.STRING, ""));
nodeAttributesList.add(NodeToAttributes.newInstance("z", attributes));
NodesToAttributesMappingRequest expected =
NodesToAttributesMappingRequest.newInstance(
AttributeMappingOperationType.ADD, nodeAttributesList, true);
assertTrue(request.equals(expected));
NodesToAttributesMappingRequest expected = NodesToAttributesMappingRequest
.newInstance(AttributeMappingOperationType.ADD, nodeAttributesList,
true);
assertTrue(nodeToAttrRequest.equals(expected));
// --------------------------------
// with Duplicate mappings for a host
// --------------------------------
args = new String[] { "-add", "x:key2=123,key3=abc x:key4(string)",
"-failOnUnknownNodes" };
args = new String[] {"-add", "x:key2=123,key3=abc x:key4(string)",
"-failOnUnknownNodes"};
assertTrue("Should not fail as attribute has been properly mapped",
0 == runTool(args));
nodeAttributesList = new ArrayList<>();
@ -315,32 +377,161 @@ public void testAdd() throws Exception {
.add(NodeAttribute.newInstance("key4", NodeAttributeType.STRING, ""));
nodeAttributesList.add(NodeToAttributes.newInstance("x", attributes));
expected =
NodesToAttributesMappingRequest.newInstance(
AttributeMappingOperationType.ADD, nodeAttributesList, true);
assertTrue(request.equals(expected));
expected = NodesToAttributesMappingRequest
.newInstance(AttributeMappingOperationType.ADD, nodeAttributesList,
true);
assertTrue(nodeToAttrRequest.equals(expected));
}
@Test
public void testListAttributes() throws Exception {
// GetClusterNodeAttributesRequest
when(client
.getClusterNodeAttributes(any(GetClusterNodeAttributesRequest.class)))
.thenAnswer(new Answer<GetClusterNodeAttributesResponse>() {
@Override
public GetClusterNodeAttributesResponse answer(
InvocationOnMock invocation) throws Throwable {
GetClusterNodeAttributesRequest nodeAttrReq =
(GetClusterNodeAttributesRequest) invocation.getArguments()[0];
return GetClusterNodeAttributesResponse.newInstance(ImmutableSet
.of(NodeAttributeInfo
.newInstance(NodeAttributeKey.newInstance("GPU"),
NodeAttributeType.STRING)));
}
});
// --------------------------------
// Success scenarios
// --------------------------------
String[] args = new String[] {"-list"};
assertTrue("It should be success since it list all attributes",
0 == runTool(args));
assertSysOutContains("Attribute\t Type",
"rm.yarn.io/GPU\t STRING");
}
@Test
public void testNodeToAttributes() throws Exception {
// GetNodesToAttributesRequest response
when(client.getNodesToAttributes(any(GetNodesToAttributesRequest.class)))
.thenAnswer(new Answer<GetNodesToAttributesResponse>() {
@Override
public GetNodesToAttributesResponse answer(
InvocationOnMock invocation) throws Throwable {
GetNodesToAttributesRequest nodeToAttributes =
(GetNodesToAttributesRequest) invocation.getArguments()[0];
return GetNodesToAttributesResponse.newInstance(
ImmutableMap.<String, Set<NodeAttribute>>builder()
.put("hostname", ImmutableSet.of(NodeAttribute
.newInstance("GPU", NodeAttributeType.STRING, "ARM")))
.build());
}
});
// --------------------------------
// Failure scenarios
// --------------------------------
String[] args = new String[] {"-nodetoattributes", "-nodes"};
assertTrue("It should not success since nodes are not specified",
0 != runTool(args));
assertErrorContains(NodeAttributesCLI.INVALID_COMMAND_USAGE);
// Missing argument for nodes
args = new String[] {"-nodestoattributes", "-nodes"};
assertTrue("It should not success since nodes are not specified",
0 != runTool(args));
assertErrorContains(NodeAttributesCLI.MISSING_ARGUMENT);
// --------------------------------
// Success with hostname param
// --------------------------------
args = new String[] {"-nodestoattributes", "-nodes", "hostname"};
assertTrue("Should return hostname to attributed list", 0 == runTool(args));
assertSysOutContains("hostname");
}
@Test
public void testAttributesToNodes() throws Exception {
// GetAttributesToNodesResponse response
when(client.getAttributesToNodes(any(GetAttributesToNodesRequest.class)))
.thenAnswer(new Answer<GetAttributesToNodesResponse>() {
@Override
public GetAttributesToNodesResponse answer(
InvocationOnMock invocation) throws Throwable {
GetAttributesToNodesRequest attrToNodes =
(GetAttributesToNodesRequest) invocation.getArguments()[0];
return GetAttributesToNodesResponse.newInstance(
ImmutableMap.<NodeAttributeKey,
List<NodeToAttributeValue>>builder()
.put(NodeAttributeKey.newInstance("GPU"), ImmutableList
.of(NodeToAttributeValue.newInstance("host1", "ARM")))
.build());
}
});
// --------------------------------
// Success scenarios
// --------------------------------
String[] args = new String[] {"-attributestonodes"};
assertTrue("It should be success since it list all attributes",
0 == runTool(args));
assertSysOutContains("Hostname\tAttribute-value", "rm.yarn.io/GPU :",
"host1\t ARM");
// --------------------------------
// fail scenario argument filter missing
// --------------------------------
args = new String[] {"-attributestonodes", "-attributes"};
assertTrue(
"It should not success since attributes for filter are not specified",
0 != runTool(args));
assertErrorContains(NodeAttributesCLI.MISSING_ARGUMENT);
// --------------------------------
// fail scenario argument filter missing
// --------------------------------
args = new String[] {"-attributestonodes", "-attributes", "fail/da/fail"};
assertTrue("It should not success since attributes format is not correct",
0 != runTool(args));
assertErrorContains(
"Attribute format not correct. Should be <[prefix]/[name]> "
+ ":fail/da/fail");
}
private void assertFailureMessageContains(String... messages) {
assertOutputContains(messages);
assertOutputContains(NodeAttributesCLI.USAGE_YARN_NODE_ATTRIBUTES);
assertErrorContains(messages);
assertErrorContains(NodeAttributesCLI.USAGE_YARN_NODE_ATTRIBUTES);
}
private void assertOutputContains(String... messages) {
private void assertErrorContains(String... messages) {
for (String message : messages) {
if (!errOutput.contains(message)) {
fail("Expected output to contain '" + message
+ "' but err_output was:\n" + errOutput);
fail(
"Expected output to contain '" + message + "' but err_output was:\n"
+ errOutput);
}
}
}
private void assertSysOutContains(String... messages) {
for (String message : messages) {
if (!sysOutput.contains(message)) {
fail(
"Expected output to contain '" + message + "' but sys_output was:\n"
+ sysOutput);
}
}
}
private int runTool(String... args) throws Exception {
errOutBytes.reset();
sysOutBytes.reset();
LOG.info("Running: NodeAttributesCLI " + Joiner.on(" ").join(args));
int ret = nodeAttributesCLI.run(args);
errOutput = new String(errOutBytes.toByteArray(), Charsets.UTF_8);
sysOutput = new String(sysOutBytes.toByteArray(), Charsets.UTF_8);
LOG.info("Err_output:\n" + errOutput);
LOG.info("Sys_output:\n" + sysOutput);
return ret;
}
}

View File

@ -17,6 +17,8 @@
*/
package org.apache.hadoop.yarn.client.cli;
import org.apache.hadoop.yarn.api.records.NodeAttribute;
import org.apache.hadoop.yarn.api.records.NodeAttributeType;
import static org.junit.Assert.assertEquals;
import static org.mockito.Matchers.any;
import static org.mockito.Matchers.anyInt;
@ -1544,8 +1546,8 @@ private List<NodeReport> getNodeReports(
public void testNodeStatus() throws Exception {
NodeId nodeId = NodeId.newInstance("host0", 0);
NodeCLI cli = new NodeCLI();
when(client.getNodeReports()).thenReturn(
getNodeReports(3, NodeState.RUNNING, false));
when(client.getNodeReports())
.thenReturn(getNodeReports(3, NodeState.RUNNING, false, false, false));
cli.setClient(client);
cli.setSysOutPrintStream(sysOut);
cli.setSysErrPrintStream(sysErr);
@ -1568,6 +1570,8 @@ public void testNodeStatus() throws Exception {
pw.println("\tCPU-Used : 0 vcores");
pw.println("\tCPU-Capacity : 0 vcores");
pw.println("\tNode-Labels : a,b,c,x,y,z");
pw.println("\tNode Attributes : rm.yarn.io/GPU(STRING)=ARM");
pw.println("\t rm.yarn.io/CPU(STRING)=ARM");
pw.println("\tResource Utilization by Node : PMem:2048 MB, VMem:4096 MB, VCores:8.0");
pw.println("\tResource Utilization by Containers : PMem:1024 MB, VMem:2048 MB, VCores:4.0");
pw.close();
@ -1604,6 +1608,7 @@ public void testNodeStatusWithEmptyNodeLabels() throws Exception {
pw.println("\tCPU-Used : 0 vcores");
pw.println("\tCPU-Capacity : 0 vcores");
pw.println("\tNode-Labels : ");
pw.println("\tNode Attributes : ");
pw.println("\tResource Utilization by Node : PMem:2048 MB, VMem:4096 MB, VCores:8.0");
pw.println("\tResource Utilization by Containers : PMem:1024 MB, VMem:2048 MB, VCores:4.0");
pw.close();
@ -1616,8 +1621,8 @@ public void testNodeStatusWithEmptyNodeLabels() throws Exception {
public void testNodeStatusWithEmptyResourceUtilization() throws Exception {
NodeId nodeId = NodeId.newInstance("host0", 0);
NodeCLI cli = new NodeCLI();
when(client.getNodeReports()).thenReturn(
getNodeReports(3, NodeState.RUNNING, false, true));
when(client.getNodeReports())
.thenReturn(getNodeReports(3, NodeState.RUNNING, false, true, true));
cli.setClient(client);
cli.setSysOutPrintStream(sysOut);
cli.setSysErrPrintStream(sysErr);
@ -1640,6 +1645,7 @@ public void testNodeStatusWithEmptyResourceUtilization() throws Exception {
pw.println("\tCPU-Used : 0 vcores");
pw.println("\tCPU-Capacity : 0 vcores");
pw.println("\tNode-Labels : a,b,c,x,y,z");
pw.println("\tNode Attributes : ");
pw.println("\tResource Utilization by Node : ");
pw.println("\tResource Utilization by Containers : ");
pw.close();
@ -2049,18 +2055,20 @@ private void verifyUsageInfo(YarnCLI cli) throws Exception {
cli.run(new String[] { "application" });
verify(sysErr).println("Invalid Command Usage : ");
}
private List<NodeReport> getNodeReports(int noOfNodes, NodeState state) {
return getNodeReports(noOfNodes, state, true, false);
return getNodeReports(noOfNodes, state, true, false, true);
}
private List<NodeReport> getNodeReports(int noOfNodes, NodeState state,
boolean emptyNodeLabel) {
return getNodeReports(noOfNodes, state, emptyNodeLabel, false);
boolean emptyNodeLabel, boolean emptyAttributes) {
return getNodeReports(noOfNodes, state, emptyNodeLabel, false,
emptyAttributes);
}
private List<NodeReport> getNodeReports(int noOfNodes, NodeState state,
boolean emptyNodeLabel, boolean emptyResourceUtilization) {
boolean emptyNodeLabel, boolean emptyResourceUtilization,
boolean emptyAttributes) {
List<NodeReport> nodeReports = new ArrayList<NodeReport>();
for (int i = 0; i < noOfNodes; i++) {
@ -2082,6 +2090,11 @@ private List<NodeReport> getNodeReports(int noOfNodes, NodeState state,
nodeReport.setAggregatedContainersUtilization(containersUtilization);
nodeReport.setNodeUtilization(nodeUtilization);
}
if (!emptyAttributes) {
nodeReport.setNodeAttributes(ImmutableSet.of(NodeAttribute
.newInstance("GPU", NodeAttributeType.STRING, "ARM"),
NodeAttribute.newInstance("CPU", NodeAttributeType.STRING, "ARM")));
}
nodeReports.add(nodeReport);
}
return nodeReports;

View File

@ -130,14 +130,18 @@ public boolean equals(Object obj) {
}
if (obj instanceof NodeAttributeInfo) {
NodeAttributeInfo other = (NodeAttributeInfo) obj;
getAttributeKey().equals(other.getAttributeKey());
return true;
return getAttributeKey().equals(other.getAttributeKey());
}
return false;
}
@Override
public String toString() {
return getAttributeKey().toString() + ":Type-" + getAttributeType();
StringBuilder strBuilder = new StringBuilder();
NodeAttributeKey key = this.getAttributeKey();
strBuilder.append(key.getAttributePrefix()).append("/")
.append(key.getAttributeName()).append("(")
.append(this.getAttributeType()).append(")");
return strBuilder.toString();
}
}

View File

@ -152,15 +152,19 @@ public boolean equals(Object obj) {
}
if (obj instanceof NodeAttribute) {
NodeAttribute other = (NodeAttribute) obj;
getAttributeKey().equals(other.getAttributeKey());
return true;
return getAttributeKey().equals(other.getAttributeKey());
}
return false;
}
@Override
public String toString() {
return getAttributeKey().toString() + ":Value-" + getAttributeValue()
+ ":Type-" + getAttributeType();
StringBuilder strBuilder = new StringBuilder();
NodeAttributeKey key = this.getAttributeKey();
strBuilder.append(key.getAttributePrefix()).append("/")
.append(key.getAttributeName()).append("(")
.append(this.getAttributeType()).append(")=")
.append(this.getAttributeValue());
return strBuilder.toString();
}
}

View File

@ -18,17 +18,21 @@
package org.apache.hadoop.yarn.api.records.impl.pb;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.apache.hadoop.classification.InterfaceAudience.Private;
import org.apache.hadoop.classification.InterfaceStability.Unstable;
import org.apache.hadoop.yarn.api.records.NodeAttribute;
import org.apache.hadoop.yarn.api.records.NodeId;
import org.apache.hadoop.yarn.api.records.NodeReport;
import org.apache.hadoop.yarn.api.records.NodeState;
import org.apache.hadoop.yarn.api.records.NodeUpdateType;
import org.apache.hadoop.yarn.api.records.Resource;
import org.apache.hadoop.yarn.api.records.ResourceUtilization;
import org.apache.hadoop.yarn.proto.YarnProtos.NodeAttributeProto;
import org.apache.hadoop.yarn.proto.YarnProtos.NodeIdProto;
import org.apache.hadoop.yarn.proto.YarnProtos.NodeReportProto;
import org.apache.hadoop.yarn.proto.YarnProtos.NodeReportProtoOrBuilder;
@ -50,6 +54,7 @@ public class NodeReportPBImpl extends NodeReport {
private ResourceUtilization containersUtilization = null;
private ResourceUtilization nodeUtilization = null;
Set<String> labels;
private Set<NodeAttribute> nodeAttributes;
public NodeReportPBImpl() {
builder = NodeReportProto.newBuilder();
@ -268,6 +273,14 @@ private void mergeLocalToBuilder() {
builder.clearNodeLabels();
builder.addAllNodeLabels(this.labels);
}
if (this.nodeAttributes != null) {
builder.clearNodeAttributes();
List<NodeAttributeProto> attrList = new ArrayList<>();
for (NodeAttribute attr : this.nodeAttributes) {
attrList.add(convertToProtoFormat(attr));
}
builder.addAllNodeAttributes(attrList);
}
if (this.nodeUtilization != null
&& !((ResourceUtilizationPBImpl) this.nodeUtilization).getProto()
.equals(builder.getNodeUtilization())) {
@ -306,7 +319,16 @@ private NodeIdPBImpl convertFromProtoFormat(NodeIdProto p) {
private NodeIdProto convertToProtoFormat(NodeId nodeId) {
return ((NodeIdPBImpl) nodeId).getProto();
}
private NodeAttributeProto convertToProtoFormat(NodeAttribute nodeAttr) {
return ((NodeAttributePBImpl) nodeAttr).getProto();
}
private NodeAttributePBImpl convertFromProtoFormat(
NodeAttributeProto nodeAttr) {
return new NodeAttributePBImpl(nodeAttr);
}
private ResourcePBImpl convertFromProtoFormat(ResourceProto p) {
return new ResourcePBImpl(p);
}
@ -427,4 +449,24 @@ public void setNodeUpdateType(NodeUpdateType nodeUpdateType) {
}
builder.setNodeUpdateType(ProtoUtils.convertToProtoFormat(nodeUpdateType));
}
@Override
public void setNodeAttributes(Set<NodeAttribute> nodeAttrs) {
maybeInitBuilder();
builder.clearNodeAttributes();
this.nodeAttributes = nodeAttrs;
}
@Override
public Set<NodeAttribute> getNodeAttributes() {
if (nodeAttributes != null) {
return nodeAttributes;
}
NodeReportProtoOrBuilder p = viaProto ? proto : builder;
this.nodeAttributes = new HashSet<>();
for (NodeAttributeProto nattrProto : p.getNodeAttributesList()) {
nodeAttributes.add(convertFromProtoFormat(nattrProto));
}
return nodeAttributes;
}
}

View File

@ -54,6 +54,7 @@
import org.apache.hadoop.yarn.api.records.LocalResource;
import org.apache.hadoop.yarn.api.records.LocalResourceType;
import org.apache.hadoop.yarn.api.records.LocalResourceVisibility;
import org.apache.hadoop.yarn.api.records.NodeAttribute;
import org.apache.hadoop.yarn.api.records.NodeId;
import org.apache.hadoop.yarn.api.records.NodeReport;
import org.apache.hadoop.yarn.api.records.NodeState;
@ -199,7 +200,7 @@ public static NodeReport newNodeReport(NodeId nodeId, NodeState nodeState,
NodeUpdateType nodeUpdateType) {
return newNodeReport(nodeId, nodeState, httpAddress, rackName, used,
capability, numContainers, healthReport, lastHealthReportTime,
nodeLabels, null, null, decommissioningTimeout, nodeUpdateType);
nodeLabels, null, null, decommissioningTimeout, nodeUpdateType, null);
}
public static NodeReport newNodeReport(NodeId nodeId, NodeState nodeState,
@ -207,7 +208,7 @@ public static NodeReport newNodeReport(NodeId nodeId, NodeState nodeState,
int numContainers, String healthReport, long lastHealthReportTime,
Set<String> nodeLabels, ResourceUtilization containersUtilization,
ResourceUtilization nodeUtilization, Integer decommissioningTimeout,
NodeUpdateType nodeUpdateType) {
NodeUpdateType nodeUpdateType, Set<NodeAttribute> attrs) {
NodeReport nodeReport = recordFactory.newRecordInstance(NodeReport.class);
nodeReport.setNodeId(nodeId);
nodeReport.setNodeState(nodeState);
@ -223,6 +224,7 @@ public static NodeReport newNodeReport(NodeId nodeId, NodeState nodeState,
nodeReport.setNodeUtilization(nodeUtilization);
nodeReport.setDecommissioningTimeout(decommissioningTimeout);
nodeReport.setNodeUpdateType(nodeUpdateType);
nodeReport.setNodeAttributes(attrs);
return nodeReport;
}

View File

@ -983,12 +983,11 @@ public NodesToAttributesMappingResponse mapAttributesToNodes(
List<NodeToAttributes> nodesToAttributes = request.getNodesToAttributes();
boolean failOnUnknownNodes = request.getFailOnUnknownNodes();
Map<String, Set<NodeAttribute>> nodeAttributeMapping =
validateAndFetch(nodesToAttributes, failOnUnknownNodes);
NodeAttributesManager nodeAttributesManager =
rm.getRMContext().getNodeAttributesManager();
try {
Map<String, Set<NodeAttribute>> nodeAttributeMapping =
validateAndFetch(nodesToAttributes, failOnUnknownNodes);
switch (request.getOperation()) {
case ADD:
nodeAttributesManager.addNodeAttributes(nodeAttributeMapping);

View File

@ -1050,8 +1050,9 @@ private NodeReport createNodeReports(RMNode rmNode) {
if (schedulerNodeReport != null) {
used = schedulerNodeReport.getUsedResource();
numContainers = schedulerNodeReport.getNumContainers();
}
}
Set<NodeAttribute> attrs = rmNode.getAllNodeAttributes();
NodeReport report =
BuilderUtils.newNodeReport(rmNode.getNodeID(), rmNode.getState(),
rmNode.getHttpAddress(), rmNode.getRackName(), used,
@ -1059,7 +1060,7 @@ private NodeReport createNodeReports(RMNode rmNode) {
rmNode.getHealthReport(), rmNode.getLastHealthReportTime(),
rmNode.getNodeLabels(), rmNode.getAggregatedContainersUtilization(),
rmNode.getNodeUtilization(), rmNode.getDecommissioningTimeout(),
null);
null, attrs);
return report;
}

View File

@ -673,10 +673,6 @@ public NodeHeartbeatResponse nodeHeartbeat(NodeHeartbeatRequest request)
this.rmContext.getNodeAttributesManager()
.replaceNodeAttributes(NodeAttribute.PREFIX_DISTRIBUTED,
ImmutableMap.of(nodeId.getHost(), nodeAttributes));
// Update node attributes to RMNode
rmNode.setNodeAttributes(NodeAttribute.PREFIX_DISTRIBUTED,
nodeAttributes);
}
}

View File

@ -197,15 +197,8 @@ public interface RMNode {
*/
RMContext getRMContext();
/**
* Sets node attributes per prefix.
* @param prefix node attribute prefix
* @param nodeAttributes node attributes
*/
void setNodeAttributes(String prefix, Set<NodeAttribute> nodeAttributes);
/**
* @return all node attributes grouped by their prefix as a map.
* @return all node attributes as a Set.
*/
Map<String, Set<NodeAttribute>> getAllNodeAttributes();
Set<NodeAttribute> getAllNodeAttributes();
}

View File

@ -59,7 +59,9 @@
import org.apache.hadoop.yarn.event.EventHandler;
import org.apache.hadoop.yarn.factories.RecordFactory;
import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;
import org.apache.hadoop.yarn.nodelabels.AttributeValue;
import org.apache.hadoop.yarn.nodelabels.CommonNodeLabelsManager;
import org.apache.hadoop.yarn.nodelabels.NodeAttributesManager;
import org.apache.hadoop.yarn.server.api.protocolrecords.LogAggregationReport;
import org.apache.hadoop.yarn.server.api.protocolrecords.NMContainerStatus;
import org.apache.hadoop.yarn.server.api.protocolrecords.NodeHeartbeatResponse;
@ -186,9 +188,6 @@ public class RMNodeImpl implements RMNode, EventHandler<RMNodeEvent> {
private NodeHeartbeatResponse latestNodeHeartBeatResponse = recordFactory
.newRecordInstance(NodeHeartbeatResponse.class);
// Node attributes, store by prefix
private Map<String, Set<NodeAttribute>> nodeAttributes = new HashMap<>();
private static final StateMachineFactory<RMNodeImpl,
NodeState,
RMNodeEventType,
@ -1552,13 +1551,10 @@ public RMContext getRMContext() {
}
@Override
public void setNodeAttributes(String prefix,
Set<NodeAttribute> nodeAttributeSet) {
this.nodeAttributes.put(prefix, nodeAttributeSet);
}
@Override
public Map<String, Set<NodeAttribute>> getAllNodeAttributes() {
return this.nodeAttributes;
public Set<NodeAttribute> getAllNodeAttributes() {
NodeAttributesManager attrMgr = context.getNodeAttributesManager();
Map<NodeAttribute, AttributeValue> nodeattrs =
attrMgr.getAttributesForNode(hostName);
return nodeattrs.keySet();
}
}

View File

@ -116,16 +116,11 @@ public NodeInfo(RMNode ni, ResourceScheduler sched) {
}
// add attributes
Map<String, Set<NodeAttribute>> nodeAttributes =
ni.getAllNodeAttributes();
Set<NodeAttribute> attrs = ni.getAllNodeAttributes();
nodeAttributesInfo = new NodeAttributesInfo();
if (nodeAttributes != null) {
for (Set<NodeAttribute> attrs : nodeAttributes.values()) {
for (NodeAttribute attribute : attrs) {
NodeAttributeInfo info = new NodeAttributeInfo(attribute);
this.nodeAttributesInfo.addNodeAttributeInfo(info);
}
}
for (NodeAttribute attribute : attrs) {
NodeAttributeInfo info = new NodeAttributeInfo(attribute);
this.nodeAttributesInfo.addNodeAttributeInfo(info);
}
// add allocation tags

View File

@ -292,8 +292,8 @@ public void setNodeAttributes(String prefix,
}
@Override
public Map<String, Set<NodeAttribute>> getAllNodeAttributes() {
return null;
public Set<NodeAttribute> getAllNodeAttributes() {
return Collections.emptySet();
}
@Override

View File

@ -1611,9 +1611,10 @@ public void testMapAttributesToNodes() throws Exception, YarnException {
try {
rm.adminService.mapAttributesToNodes(request);
fail("host5 is not a valid node, It should have failed");
} catch (Exception ex) {
} catch (YarnException ex) {
Assert.assertEquals("Exception Message is not as desired",
" Following nodes does not exist : [host5]", ex.getMessage());
" Following nodes does not exist : [host5]",
ex.getCause().getMessage());
}
request =
@ -1633,10 +1634,10 @@ public void testMapAttributesToNodes() throws Exception, YarnException {
// against hostname hence the message as : nodes does not exist.
rm.adminService.mapAttributesToNodes(request);
fail("host with the port should fail as only hostnames are validated");
} catch (Exception ex) {
} catch (YarnException ex) {
Assert.assertEquals("Exception Message is not as desired",
" Following nodes does not exist : [host4:8889, host2:8889]",
ex.getMessage());
ex.getCause().getMessage());
}
request =
@ -1669,11 +1670,10 @@ public void testMapAttributesToNodes() throws Exception, YarnException {
try {
rm.adminService.mapAttributesToNodes(request);
fail("This operation should fail as prefix should be \"nm.yarn.io\".");
} catch (Exception ex) {
} catch (YarnException ex) {
Assert.assertEquals("Exception Message is not as desired",
"Invalid Attribute Mapping for the node host5. Prefix should be "
+ "rm.yarn.io",
ex.getMessage());
+ "rm.yarn.io", ex.getCause().getMessage());
}
rm.close();