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https://issues.apache.org/jira/browse/YARN-4500?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tianyin Xu updated YARN-4500:
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Summary: Missing default config values in docs (was: Obsolete and missing
default config values in docs)
> Missing default config values in docs
> -------------------------------------
>
> Key: YARN-4500
> URL: https://issues.apache.org/jira/browse/YARN-4500
> Project: Hadoop YARN
> Issue Type: Bug
> Components: documentation
> Affects Versions: 2.7.1, 2.6.2
> Reporter: Tianyin Xu
>
> Sorry for firing 3 separate JIRA posts. This JIRA is related to YARN-4482 and
> YARN-4499. Different from those two JIRAs, all the problems in this JIRA are
> certainly doc errors and can be simply fixed by patching
> {{yarn-default.xml}}.
> *1. Obsolete docs*
> {{yarn.resourcemanager.store.class}}
> In
> [yarn-default.xml|https://hadoop.apache.org/docs/r2.7.1/hadoop-yarn/hadoop-yarn-common/yarn-default.xml],
> the value is
> {{org.apache.hadoop.yarn.server.resourcemanager.recovery.FileSystemRMStateStore}},
> while it should be
> {{org.apache.hadoop.yarn.server.resourcemanager.recovery.MemoryRMStateStore}}
> according to the code. The only usage is listed below,
> {code:title=RMStateStoreFactory.java|borderStyle=solid}
> 26 public class RMStateStoreFactory {
> 27 private static final Log LOG =
> LogFactory.getLog(RMStateStoreFactory.class);
> 28
> 29 public static RMStateStore getStore(Configuration conf) {
> 30 Class<? extends RMStateStore> storeClass =
> 31 conf.getClass(YarnConfiguration.RM_STORE,
> 32 MemoryRMStateStore.class, RMStateStore.class);
> 33 LOG.info("Using RMStateStore implementation - " + storeClass);
> 34 return ReflectionUtils.newInstance(storeClass, conf);
> 35 }
> 36 }
> {code}
> \\
> *2. Missing default configs*
> The docs
> [yarn-default.xml|https://hadoop.apache.org/docs/r2.7.1/hadoop-yarn/hadoop-yarn-common/yarn-default.xml]
> miss the default values of the following parameters:
> {{yarn.web-proxy.address}}
> {{yarn.ipc.client.factory.class}}
> {{yarn.ipc.server.factory.class}}
> {{yarn.ipc.record.factory.class}}
> Here you go,
> {code:title=YarnConfiguration.java|borderStyle=solid}
> 97 /** Factory to create client IPC classes.*/
> 98 public static final String IPC_CLIENT_FACTORY_CLASS =
> 99 IPC_PREFIX + "client.factory.class";
> 100 public static final String DEFAULT_IPC_CLIENT_FACTORY_CLASS =
> 101 "org.apache.hadoop.yarn.factories.impl.pb.RpcClientFactoryPBImpl";
> 102
> 103 /** Factory to create server IPC classes.*/
> 104 public static final String IPC_SERVER_FACTORY_CLASS =
> 105 IPC_PREFIX + "server.factory.class";
> 106 public static final String DEFAULT_IPC_SERVER_FACTORY_CLASS =
> 107 "org.apache.hadoop.yarn.factories.impl.pb.RpcServerFactoryPBImpl";
> 108
> 109 /** Factory to create serializeable records.*/
> 110 public static final String IPC_RECORD_FACTORY_CLASS =
> 111 IPC_PREFIX + "record.factory.class";
> 112 public static final String DEFAULT_IPC_RECORD_FACTORY_CLASS =
> 113 "org.apache.hadoop.yarn.factories.impl.pb.RecordFactoryPBImpl";
> ...
> 1119 /** The address for the web proxy.*/
> 1120 public static final String PROXY_ADDRESS =
> 1121 PROXY_PREFIX + "address";
> 1122 public static final int DEFAULT_PROXY_PORT = 9099;
> 1123 public static final String DEFAULT_PROXY_ADDRESS =
> 1124 "0.0.0.0:" + DEFAULT_PROXY_PORT;
> {code}
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