DataNode不用检查;只要workers文件设对了就行。

        YARN
        在start-yarn的代码中;可以看到;没有直接检测resourcemanager之类节点设置是否正确的方式;而是在判断是否配置高可用;HA;模式。这个暂时我们也没有计划接触;所以一定返回false。好在只要xml没设错;yarn相关的daemon都不算太难启动;只是需要在正确的节点上运行start-yarn就行。

         ;2;启动Hadoop

        虽然有start-all;但不建议用;因为我也不太清楚;脚本都否知道我为节点分配的角色。所以最好是分别用start-dfs和start-yarn在pig1;pig2上分别启动

       ①  格式化DFS

        如果是第一次启动;那么在启动前需要在名字服务器节点上执行一次文件系统格式化操作。该操作只能执行这一次;如果要重来;则需要停止各daemon;接着将hadoop.tmp.dir、dfs.namenode.name.dir和dfs.dataname.data.dir这3个目录下得文件清理干净;然后再执行格式化操作。

[root;pig1 hadoop]# bin/hdfs namenode -format
2022-09-19 02:48:57,722 INFO namenode.NameNode: STARTUP_MSG: 
/************************************************************
STARTUP_MSG: Starting NameNode
STARTUP_MSG:   host = pig1/192.168.21.11
STARTUP_MSG:   args = [-format]
STARTUP_MSG:   version = 3.3.4
STARTUP_MSG:   classpath = /root/hadoop/etc/hadoop:/root/hadoop/share/hadoop/common/lib/slf4j-reload4j-1.7.36.jar:/root/hadoop/share/hadoop/common/lib/snappy-java-1.1.8.2.jar:/root/hadoop/share/hadoop/common/lib/jsr305-3.0.2.jar:/root/hadoop/share/hadoop/common/lib/nimbus-jose-jwt-9.8.1.jar:/root/hadoop/share/hadoop/common/lib/kerb-common-1.0.1.jar:/root/hadoop/share/hadoop/common/lib/commons-net-3.6.jar:/root/hadoop/share/hadoop/common/lib/accessors-smart-2.4.7.jar:/root/hadoop/share/hadoop/common/lib/j2objc-annotations-1.1.jar:/root/hadoop/share/hadoop/common/lib/curator-framework-4.2.0.jar:/root/hadoop/share/hadoop/common/lib/netty-3.10.6.Final.jar:/root/hadoop/share/hadoop/common/lib/jersey-servlet-1.19.jar:/root/hadoop/share/hadoop/common/lib/audience-annotations-0.5.0.jar:/root/hadoop/share/hadoop/common/lib/jetty-servlet-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/common/lib/jsr311-api-1.1.1.jar:/root/hadoop/share/hadoop/common/lib/jaxb-impl-2.2.3-1.jar:/root/hadoop/share/hadoop/common/lib/dnsjava-2.1.7.jar:/root/hadoop/share/hadoop/common/lib/kerb-util-1.0.1.jar:/root/hadoop/share/hadoop/common/lib/jetty-xml-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/common/lib/hadoop-shaded-protobuf_3_7-1.1.1.jar:/root/hadoop/share/hadoop/common/lib/reload4j-1.2.22.jar:/root/hadoop/share/hadoop/common/lib/commons-compress-1.21.jar:/root/hadoop/share/hadoop/common/lib/guava-27.0-jre.jar:/root/hadoop/share/hadoop/common/lib/commons-math3-3.1.1.jar:/root/hadoop/share/hadoop/common/lib/kerb-admin-1.0.1.jar:/root/hadoop/share/hadoop/common/lib/jersey-server-1.19.jar:/root/hadoop/share/hadoop/common/lib/jetty-webapp-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/common/lib/jetty-security-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/common/lib/paranamer-2.3.jar:/root/hadoop/share/hadoop/common/lib/commons-beanutils-1.9.4.jar:/root/hadoop/share/hadoop/common/lib/jetty-server-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/common/lib/listenablefuture-9999.0-empty-to-avoid-conflict-with-guava.jar:/root/hadoop/share/hadoop/common/lib/stax2-api-4.2.1.jar:/root/hadoop/share/hadoop/common/lib/jaxb-api-2.2.11.jar:/root/hadoop/share/hadoop/common/lib/metrics-core-3.2.4.jar:/root/hadoop/share/hadoop/common/lib/jackson-databind-2.12.7.jar:/root/hadoop/share/hadoop/common/lib/jackson-xc-1.9.13.jar:/root/hadoop/share/hadoop/common/lib/jackson-mapper-asl-1.9.13.jar:/root/hadoop/share/hadoop/common/lib/gson-2.8.9.jar:/root/hadoop/share/hadoop/common/lib/kerb-core-1.0.1.jar:/root/hadoop/share/hadoop/common/lib/kerby-asn1-1.0.1.jar:/root/hadoop/share/hadoop/common/lib/jsp-api-2.1.jar:/root/hadoop/share/hadoop/common/lib/jersey-json-1.19.jar:/root/hadoop/share/hadoop/common/lib/avro-1.7.7.jar:/root/hadoop/share/hadoop/common/lib/kerb-client-1.0.1.jar:/root/hadoop/share/hadoop/common/lib/kerby-xdr-1.0.1.jar:/root/hadoop/share/hadoop/common/lib/token-provider-1.0.1.jar:/root/hadoop/share/hadoop/common/lib/hadoop-shaded-guava-1.1.1.jar:/root/hadoop/share/hadoop/common/lib/jetty-http-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/common/lib/checker-qual-2.5.2.jar:/root/hadoop/share/hadoop/common/lib/commons-cli-1.2.jar:/root/hadoop/share/hadoop/common/lib/jackson-core-2.12.7.jar:/root/hadoop/share/hadoop/common/lib/kerb-identity-1.0.1.jar:/root/hadoop/share/hadoop/common/lib/httpcore-4.4.13.jar:/root/hadoop/share/hadoop/common/lib/asm-5.0.4.jar:/root/hadoop/share/hadoop/common/lib/slf4j-api-1.7.36.jar:/root/hadoop/share/hadoop/common/lib/json-smart-2.4.7.jar:/root/hadoop/share/hadoop/common/lib/kerb-crypto-1.0.1.jar:/root/hadoop/share/hadoop/common/lib/curator-recipes-4.2.0.jar:/root/hadoop/share/hadoop/common/lib/kerby-config-1.0.1.jar:/root/hadoop/share/hadoop/common/lib/jetty-io-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/common/lib/hadoop-auth-3.3.4.jar:/root/hadoop/share/hadoop/common/lib/kerby-pkix-1.0.1.jar:/root/hadoop/share/hadoop/common/lib/jackson-core-asl-1.9.13.jar:/root/hadoop/share/hadoop/common/lib/commons-lang3-3.12.0.jar:/root/hadoop/share/hadoop/common/lib/jakarta.activation-api-1.2.1.jar:/root/hadoop/share/hadoop/common/lib/commons-text-1.4.jar:/root/hadoop/share/hadoop/common/lib/woodstox-core-5.3.0.jar:/root/hadoop/share/hadoop/common/lib/jettison-1.1.jar:/root/hadoop/share/hadoop/common/lib/animal-sniffer-annotations-1.17.jar:/root/hadoop/share/hadoop/common/lib/jsch-0.1.55.jar:/root/hadoop/share/hadoop/common/lib/zookeeper-jute-3.5.6.jar:/root/hadoop/share/hadoop/common/lib/jackson-jaxrs-1.9.13.jar:/root/hadoop/share/hadoop/common/lib/jul-to-slf4j-1.7.36.jar:/root/hadoop/share/hadoop/common/lib/kerb-simplekdc-1.0.1.jar:/root/hadoop/share/hadoop/common/lib/hadoop-annotations-3.3.4.jar:/root/hadoop/share/hadoop/common/lib/commons-io-2.8.0.jar:/root/hadoop/share/hadoop/common/lib/curator-client-4.2.0.jar:/root/hadoop/share/hadoop/common/lib/jetty-util-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/common/lib/commons-collections-3.2.2.jar:/root/hadoop/share/hadoop/common/lib/kerby-util-1.0.1.jar:/root/hadoop/share/hadoop/common/lib/kerb-server-1.0.1.jar:/root/hadoop/share/hadoop/common/lib/zookeeper-3.5.6.jar:/root/hadoop/share/hadoop/common/lib/protobuf-java-2.5.0.jar:/root/hadoop/share/hadoop/common/lib/failureaccess-1.0.jar:/root/hadoop/share/hadoop/common/lib/jetty-util-ajax-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/common/lib/re2j-1.1.jar:/root/hadoop/share/hadoop/common/lib/commons-codec-1.15.jar:/root/hadoop/share/hadoop/common/lib/commons-configuration2-2.1.1.jar:/root/hadoop/share/hadoop/common/lib/jackson-annotations-2.12.7.jar:/root/hadoop/share/hadoop/common/lib/jcip-annotations-1.0-1.jar:/root/hadoop/share/hadoop/common/lib/commons-daemon-1.0.13.jar:/root/hadoop/share/hadoop/common/lib/jersey-core-1.19.jar:/root/hadoop/share/hadoop/common/lib/httpclient-4.5.13.jar:/root/hadoop/share/hadoop/common/lib/javax.servlet-api-3.1.0.jar:/root/hadoop/share/hadoop/common/lib/commons-logging-1.1.3.jar:/root/hadoop/share/hadoop/common/hadoop-kms-3.3.4.jar:/root/hadoop/share/hadoop/common/hadoop-nfs-3.3.4.jar:/root/hadoop/share/hadoop/common/hadoop-common-3.3.4.jar:/root/hadoop/share/hadoop/common/hadoop-common-3.3.4-tests.jar:/root/hadoop/share/hadoop/common/hadoop-registry-3.3.4.jar:/root/hadoop/share/hadoop/hdfs:/root/hadoop/share/hadoop/hdfs/lib/snappy-java-1.1.8.2.jar:/root/hadoop/share/hadoop/hdfs/lib/jsr305-3.0.2.jar:/root/hadoop/share/hadoop/hdfs/lib/okhttp-4.9.3.jar:/root/hadoop/share/hadoop/hdfs/lib/nimbus-jose-jwt-9.8.1.jar:/root/hadoop/share/hadoop/hdfs/lib/kerb-common-1.0.1.jar:/root/hadoop/share/hadoop/hdfs/lib/commons-net-3.6.jar:/root/hadoop/share/hadoop/hdfs/lib/accessors-smart-2.4.7.jar:/root/hadoop/share/hadoop/hdfs/lib/j2objc-annotations-1.1.jar:/root/hadoop/share/hadoop/hdfs/lib/curator-framework-4.2.0.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-3.10.6.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-transport-rxtx-4.1.77.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-codec-stomp-4.1.77.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/jersey-servlet-1.19.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-codec-mqtt-4.1.77.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/audience-annotations-0.5.0.jar:/root/hadoop/share/hadoop/hdfs/lib/jetty-servlet-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-codec-http-4.1.77.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/jsr311-api-1.1.1.jar:/root/hadoop/share/hadoop/hdfs/lib/jaxb-impl-2.2.3-1.jar:/root/hadoop/share/hadoop/hdfs/lib/dnsjava-2.1.7.jar:/root/hadoop/share/hadoop/hdfs/lib/kerb-util-1.0.1.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-resolver-dns-classes-macos-4.1.77.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/jetty-xml-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/hdfs/lib/hadoop-shaded-protobuf_3_7-1.1.1.jar:/root/hadoop/share/hadoop/hdfs/lib/reload4j-1.2.22.jar:/root/hadoop/share/hadoop/hdfs/lib/commons-compress-1.21.jar:/root/hadoop/share/hadoop/hdfs/lib/guava-27.0-jre.jar:/root/hadoop/share/hadoop/hdfs/lib/commons-math3-3.1.1.jar:/root/hadoop/share/hadoop/hdfs/lib/kerb-admin-1.0.1.jar:/root/hadoop/share/hadoop/hdfs/lib/jersey-server-1.19.jar:/root/hadoop/share/hadoop/hdfs/lib/jetty-webapp-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/hdfs/lib/jetty-security-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/hdfs/lib/paranamer-2.3.jar:/root/hadoop/share/hadoop/hdfs/lib/commons-beanutils-1.9.4.jar:/root/hadoop/share/hadoop/hdfs/lib/jetty-server-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/hdfs/lib/listenablefuture-9999.0-empty-to-avoid-conflict-with-guava.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-codec-dns-4.1.77.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/stax2-api-4.2.1.jar:/root/hadoop/share/hadoop/hdfs/lib/jaxb-api-2.2.11.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-transport-4.1.77.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-codec-xml-4.1.77.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/kotlin-stdlib-1.4.10.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-buffer-4.1.77.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/jackson-databind-2.12.7.jar:/root/hadoop/share/hadoop/hdfs/lib/jackson-xc-1.9.13.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-transport-classes-epoll-4.1.77.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/jackson-mapper-asl-1.9.13.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-transport-native-unix-common-4.1.77.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/gson-2.8.9.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-transport-native-epoll-4.1.77.Final-linux-aarch_64.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-codec-memcache-4.1.77.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-all-4.1.77.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/kerb-core-1.0.1.jar:/root/hadoop/share/hadoop/hdfs/lib/kerby-asn1-1.0.1.jar:/root/hadoop/share/hadoop/hdfs/lib/json-simple-1.1.1.jar:/root/hadoop/share/hadoop/hdfs/lib/jersey-json-1.19.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-transport-native-epoll-4.1.77.Final-linux-x86_64.jar:/root/hadoop/share/hadoop/hdfs/lib/avro-1.7.7.jar:/root/hadoop/share/hadoop/hdfs/lib/kerb-client-1.0.1.jar:/root/hadoop/share/hadoop/hdfs/lib/kerby-xdr-1.0.1.jar:/root/hadoop/share/hadoop/hdfs/lib/token-provider-1.0.1.jar:/root/hadoop/share/hadoop/hdfs/lib/hadoop-shaded-guava-1.1.1.jar:/root/hadoop/share/hadoop/hdfs/lib/jetty-http-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/hdfs/lib/checker-qual-2.5.2.jar:/root/hadoop/share/hadoop/hdfs/lib/commons-cli-1.2.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-transport-native-kqueue-4.1.77.Final-osx-x86_64.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-handler-4.1.77.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-resolver-dns-native-macos-4.1.77.Final-osx-aarch_64.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-transport-udt-4.1.77.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/jackson-core-2.12.7.jar:/root/hadoop/share/hadoop/hdfs/lib/kerb-identity-1.0.1.jar:/root/hadoop/share/hadoop/hdfs/lib/httpcore-4.4.13.jar:/root/hadoop/share/hadoop/hdfs/lib/asm-5.0.4.jar:/root/hadoop/share/hadoop/hdfs/lib/json-smart-2.4.7.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-codec-haproxy-4.1.77.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/kerb-crypto-1.0.1.jar:/root/hadoop/share/hadoop/hdfs/lib/curator-recipes-4.2.0.jar:/root/hadoop/share/hadoop/hdfs/lib/kotlin-stdlib-common-1.4.10.jar:/root/hadoop/share/hadoop/hdfs/lib/kerby-config-1.0.1.jar:/root/hadoop/share/hadoop/hdfs/lib/jetty-io-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/hdfs/lib/hadoop-auth-3.3.4.jar:/root/hadoop/share/hadoop/hdfs/lib/kerby-pkix-1.0.1.jar:/root/hadoop/share/hadoop/hdfs/lib/jackson-core-asl-1.9.13.jar:/root/hadoop/share/hadoop/hdfs/lib/commons-lang3-3.12.0.jar:/root/hadoop/share/hadoop/hdfs/lib/okio-2.8.0.jar:/root/hadoop/share/hadoop/hdfs/lib/jakarta.activation-api-1.2.1.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-transport-classes-kqueue-4.1.77.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-resolver-dns-4.1.77.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-codec-4.1.77.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/commons-text-1.4.jar:/root/hadoop/share/hadoop/hdfs/lib/woodstox-core-5.3.0.jar:/root/hadoop/share/hadoop/hdfs/lib/jettison-1.1.jar:/root/hadoop/share/hadoop/hdfs/lib/jsch-0.1.55.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-transport-native-kqueue-4.1.77.Final-osx-aarch_64.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-transport-sctp-4.1.77.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/animal-sniffer-annotations-1.17.jar:/root/hadoop/share/hadoop/hdfs/lib/zookeeper-jute-3.5.6.jar:/root/hadoop/share/hadoop/hdfs/lib/jackson-jaxrs-1.9.13.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-codec-smtp-4.1.77.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/leveldbjni-all-1.8.jar:/root/hadoop/share/hadoop/hdfs/lib/kerb-simplekdc-1.0.1.jar:/root/hadoop/share/hadoop/hdfs/lib/hadoop-annotations-3.3.4.jar:/root/hadoop/share/hadoop/hdfs/lib/commons-io-2.8.0.jar:/root/hadoop/share/hadoop/hdfs/lib/curator-client-4.2.0.jar:/root/hadoop/share/hadoop/hdfs/lib/jetty-util-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/hdfs/lib/commons-collections-3.2.2.jar:/root/hadoop/share/hadoop/hdfs/lib/kerby-util-1.0.1.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-handler-proxy-4.1.77.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/kerb-server-1.0.1.jar:/root/hadoop/share/hadoop/hdfs/lib/zookeeper-3.5.6.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-codec-redis-4.1.77.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/protobuf-java-2.5.0.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-codec-socks-4.1.77.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/failureaccess-1.0.jar:/root/hadoop/share/hadoop/hdfs/lib/jetty-util-ajax-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/hdfs/lib/re2j-1.1.jar:/root/hadoop/share/hadoop/hdfs/lib/commons-codec-1.15.jar:/root/hadoop/share/hadoop/hdfs/lib/commons-configuration2-2.1.1.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-resolver-dns-native-macos-4.1.77.Final-osx-x86_64.jar:/root/hadoop/share/hadoop/hdfs/lib/jackson-annotations-2.12.7.jar:/root/hadoop/share/hadoop/hdfs/lib/jcip-annotations-1.0-1.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-resolver-4.1.77.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-common-4.1.77.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/commons-daemon-1.0.13.jar:/root/hadoop/share/hadoop/hdfs/lib/jersey-core-1.19.jar:/root/hadoop/share/hadoop/hdfs/lib/netty-codec-http2-4.1.77.Final.jar:/root/hadoop/share/hadoop/hdfs/lib/httpclient-4.5.13.jar:/root/hadoop/share/hadoop/hdfs/lib/javax.servlet-api-3.1.0.jar:/root/hadoop/share/hadoop/hdfs/lib/commons-logging-1.1.3.jar:/root/hadoop/share/hadoop/hdfs/hadoop-hdfs-native-client-3.3.4.jar:/root/hadoop/share/hadoop/hdfs/hadoop-hdfs-rbf-3.3.4.jar:/root/hadoop/share/hadoop/hdfs/hadoop-hdfs-nfs-3.3.4.jar:/root/hadoop/share/hadoop/hdfs/hadoop-hdfs-rbf-3.3.4-tests.jar:/root/hadoop/share/hadoop/hdfs/hadoop-hdfs-httpfs-3.3.4.jar:/root/hadoop/share/hadoop/hdfs/hadoop-hdfs-3.3.4.jar:/root/hadoop/share/hadoop/hdfs/hadoop-hdfs-client-3.3.4.jar:/root/hadoop/share/hadoop/hdfs/hadoop-hdfs-3.3.4-tests.jar:/root/hadoop/share/hadoop/hdfs/hadoop-hdfs-client-3.3.4-tests.jar:/root/hadoop/share/hadoop/hdfs/hadoop-hdfs-native-client-3.3.4-tests.jar:/root/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-core-3.3.4.jar:/root/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-3.3.4.jar:/root/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-3.3.4.jar:/root/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-common-3.3.4.jar:/root/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-plugins-3.3.4.jar:/root/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-3.3.4.jar:/root/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-uploader-3.3.4.jar:/root/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-nativetask-3.3.4.jar:/root/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-shuffle-3.3.4.jar:/root/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-app-3.3.4.jar:/root/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-3.3.4-tests.jar:/root/hadoop/share/hadoop/yarn:/root/hadoop/share/hadoop/yarn/lib/jetty-plus-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/yarn/lib/jetty-jndi-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/yarn/lib/java-util-1.9.0.jar:/root/hadoop/share/hadoop/yarn/lib/snakeyaml-1.26.jar:/root/hadoop/share/hadoop/yarn/lib/jetty-annotations-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/yarn/lib/javax.websocket-client-api-1.0.jar:/root/hadoop/share/hadoop/yarn/lib/fst-2.50.jar:/root/hadoop/share/hadoop/yarn/lib/websocket-servlet-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/yarn/lib/bcpkix-jdk15on-1.60.jar:/root/hadoop/share/hadoop/yarn/lib/objenesis-2.6.jar:/root/hadoop/share/hadoop/yarn/lib/asm-tree-9.1.jar:/root/hadoop/share/hadoop/yarn/lib/metrics-core-3.2.4.jar:/root/hadoop/share/hadoop/yarn/lib/aopalliance-1.0.jar:/root/hadoop/share/hadoop/yarn/lib/asm-analysis-9.1.jar:/root/hadoop/share/hadoop/yarn/lib/javax.websocket-api-1.0.jar:/root/hadoop/share/hadoop/yarn/lib/javax-websocket-client-impl-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/yarn/lib/jersey-guice-1.19.jar:/root/hadoop/share/hadoop/yarn/lib/mssql-jdbc-6.2.1.jre7.jar:/root/hadoop/share/hadoop/yarn/lib/websocket-common-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/yarn/lib/jackson-module-jaxb-annotations-2.12.7.jar:/root/hadoop/share/hadoop/yarn/lib/websocket-api-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/yarn/lib/jetty-client-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/yarn/lib/jersey-client-1.19.jar:/root/hadoop/share/hadoop/yarn/lib/javax.inject-1.jar:/root/hadoop/share/hadoop/yarn/lib/websocket-server-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/yarn/lib/bcprov-jdk15on-1.60.jar:/root/hadoop/share/hadoop/yarn/lib/geronimo-jcache_1.0_spec-1.0-alpha-1.jar:/root/hadoop/share/hadoop/yarn/lib/jackson-jaxrs-json-provider-2.12.7.jar:/root/hadoop/share/hadoop/yarn/lib/ehcache-3.3.1.jar:/root/hadoop/share/hadoop/yarn/lib/jackson-jaxrs-base-2.12.7.jar:/root/hadoop/share/hadoop/yarn/lib/asm-commons-9.1.jar:/root/hadoop/share/hadoop/yarn/lib/HikariCP-java7-2.4.12.jar:/root/hadoop/share/hadoop/yarn/lib/jna-5.2.0.jar:/root/hadoop/share/hadoop/yarn/lib/swagger-annotations-1.5.4.jar:/root/hadoop/share/hadoop/yarn/lib/websocket-client-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/yarn/lib/guice-4.0.jar:/root/hadoop/share/hadoop/yarn/lib/javax-websocket-server-impl-9.4.43.v20210629.jar:/root/hadoop/share/hadoop/yarn/lib/json-io-2.5.1.jar:/root/hadoop/share/hadoop/yarn/lib/jakarta.xml.bind-api-2.3.2.jar:/root/hadoop/share/hadoop/yarn/lib/jline-3.9.0.jar:/root/hadoop/share/hadoop/yarn/lib/guice-servlet-4.0.jar:/root/hadoop/share/hadoop/yarn/hadoop-yarn-registry-3.3.4.jar:/root/hadoop/share/hadoop/yarn/hadoop-yarn-server-router-3.3.4.jar:/root/hadoop/share/hadoop/yarn/hadoop-yarn-server-sharedcachemanager-3.3.4.jar:/root/hadoop/share/hadoop/yarn/hadoop-yarn-server-common-3.3.4.jar:/root/hadoop/share/hadoop/yarn/hadoop-yarn-applications-unmanaged-am-launcher-3.3.4.jar:/root/hadoop/share/hadoop/yarn/hadoop-yarn-client-3.3.4.jar:/root/hadoop/share/hadoop/yarn/hadoop-yarn-server-tests-3.3.4.jar:/root/hadoop/share/hadoop/yarn/hadoop-yarn-server-timeline-pluginstorage-3.3.4.jar:/root/hadoop/share/hadoop/yarn/hadoop-yarn-applications-distributedshell-3.3.4.jar:/root/hadoop/share/hadoop/yarn/hadoop-yarn-services-core-3.3.4.jar:/root/hadoop/share/hadoop/yarn/hadoop-yarn-server-resourcemanager-3.3.4.jar:/root/hadoop/share/hadoop/yarn/hadoop-yarn-services-api-3.3.4.jar:/root/hadoop/share/hadoop/yarn/hadoop-yarn-api-3.3.4.jar:/root/hadoop/share/hadoop/yarn/hadoop-yarn-server-applicationhistoryservice-3.3.4.jar:/root/hadoop/share/hadoop/yarn/hadoop-yarn-server-web-proxy-3.3.4.jar:/root/hadoop/share/hadoop/yarn/hadoop-yarn-server-nodemanager-3.3.4.jar:/root/hadoop/share/hadoop/yarn/hadoop-yarn-applications-mawo-core-3.3.4.jar:/root/hadoop/share/hadoop/yarn/hadoop-yarn-common-3.3.4.jar
STARTUP_MSG:   build = https://github.com/apache/hadoop.git -r a585a73c3e02ac62350c136643a5e7f6095a3dbb; compiled by ;stevel; on 2022-07-29T12:32Z
STARTUP_MSG:   java = 18.0.1.1
************************************************************/
2022-09-19 02:48:57,741 INFO namenode.NameNode: registered UNIX signal handlers for [TERM, HUP, INT]
2022-09-19 02:48:57,857 INFO namenode.NameNode: createNameNode [-format]
2022-09-19 02:48:58,449 INFO namenode.NameNode: Formatting using clusterid: CID-f134afe2-0d90-4d61-accd-f40b770a2e01
2022-09-19 02:48:58,485 INFO namenode.FSEditLog: Edit logging is async:true
2022-09-19 02:48:58,538 INFO namenode.FSNamesystem: KeyProvider: null
2022-09-19 02:48:58,541 INFO namenode.FSNamesystem: fsLock is fair: true
2022-09-19 02:48:58,542 INFO namenode.FSNamesystem: Detailed lock hold time metrics enabled: false
2022-09-19 02:48:58,574 INFO namenode.FSNamesystem: fsOwner                = root (auth:SIMPLE)
2022-09-19 02:48:58,574 INFO namenode.FSNamesystem: supergroup             = supergroup
2022-09-19 02:48:58,574 INFO namenode.FSNamesystem: isPermissionEnabled    = true
2022-09-19 02:48:58,574 INFO namenode.FSNamesystem: isStoragePolicyEnabled = true
2022-09-19 02:48:58,574 INFO namenode.FSNamesystem: HA Enabled: false
2022-09-19 02:48:58,634 INFO common.Util: dfs.datanode.fileio.profiling.sampling.percentage set to 0. Disabling file IO profiling
2022-09-19 02:48:58,649 INFO blockmanagement.DatanodeManager: dfs.block.invalidate.limit: configured=1000, counted=60, effected=1000
2022-09-19 02:48:58,649 INFO blockmanagement.DatanodeManager: dfs.namenode.datanode.registration.ip-hostname-check=true
2022-09-19 02:48:58,657 INFO blockmanagement.BlockManager: dfs.namenode.startup.delay.block.deletion.sec is set to 000:00:00:00.000
2022-09-19 02:48:58,658 INFO blockmanagement.BlockManager: The block deletion will start around 2022 9月 19 02:48:58
2022-09-19 02:48:58,659 INFO util.GSet: Computing capacity for map BlocksMap
2022-09-19 02:48:58,659 INFO util.GSet: VM type       = 64-bit
2022-09-19 02:48:58,662 INFO util.GSet: 2.0% max memory 928 MB = 18.6 MB
2022-09-19 02:48:58,662 INFO util.GSet: capacity      = 2^21 = 2097152 entries
2022-09-19 02:48:58,676 INFO blockmanagement.BlockManager: Storage policy satisfier is disabled
2022-09-19 02:48:58,677 INFO blockmanagement.BlockManager: dfs.block.access.token.enable = false
2022-09-19 02:48:58,682 INFO blockmanagement.BlockManagerSafeMode: dfs.namenode.safemode.threshold-pct = 0.999
2022-09-19 02:48:58,682 INFO blockmanagement.BlockManagerSafeMode: dfs.namenode.safemode.min.datanodes = 0
2022-09-19 02:48:58,682 INFO blockmanagement.BlockManagerSafeMode: dfs.namenode.safemode.extension = 30000
2022-09-19 02:48:58,682 INFO blockmanagement.BlockManager: defaultReplication         = 3
2022-09-19 02:48:58,682 INFO blockmanagement.BlockManager: maxReplication             = 512
2022-09-19 02:48:58,682 INFO blockmanagement.BlockManager: minReplication             = 1
2022-09-19 02:48:58,683 INFO blockmanagement.BlockManager: maxReplicationStreams      = 2
2022-09-19 02:48:58,683 INFO blockmanagement.BlockManager: redundancyRecheckInterval  = 3000ms
2022-09-19 02:48:58,683 INFO blockmanagement.BlockManager: encryptDataTransfer        = false
2022-09-19 02:48:58,683 INFO blockmanagement.BlockManager: maxNumBlocksToLog          = 1000
2022-09-19 02:48:58,712 INFO namenode.FSDirectory: GLOBAL serial map: bits=29 maxEntries=536870911
2022-09-19 02:48:58,712 INFO namenode.FSDirectory: USER serial map: bits=24 maxEntries=16777215
2022-09-19 02:48:58,712 INFO namenode.FSDirectory: GROUP serial map: bits=24 maxEntries=16777215
2022-09-19 02:48:58,712 INFO namenode.FSDirectory: XATTR serial map: bits=24 maxEntries=16777215
2022-09-19 02:48:58,722 INFO util.GSet: Computing capacity for map INodeMap
2022-09-19 02:48:58,722 INFO util.GSet: VM type       = 64-bit
2022-09-19 02:48:58,722 INFO util.GSet: 1.0% max memory 928 MB = 9.3 MB
2022-09-19 02:48:58,722 INFO util.GSet: capacity      = 2^20 = 1048576 entries
2022-09-19 02:48:58,733 INFO namenode.FSDirectory: ACLs enabled? true
2022-09-19 02:48:58,733 INFO namenode.FSDirectory: POSIX ACL inheritance enabled? true
2022-09-19 02:48:58,733 INFO namenode.FSDirectory: XAttrs enabled? true
2022-09-19 02:48:58,733 INFO namenode.NameNode: Caching file names occurring more than 10 times
2022-09-19 02:48:58,737 INFO snapshot.SnapshotManager: Loaded config captureOpenFiles: false, skipCaptureAccessTimeOnlyChange: false, snapshotDiffAllowSnapRootDescendant: true, maxSnapshotLimit: 65536
2022-09-19 02:48:58,739 INFO snapshot.SnapshotManager: SkipList is disabled
2022-09-19 02:48:58,742 INFO util.GSet: Computing capacity for map cachedBlocks
2022-09-19 02:48:58,742 INFO util.GSet: VM type       = 64-bit
2022-09-19 02:48:58,742 INFO util.GSet: 0.25% max memory 928 MB = 2.3 MB
2022-09-19 02:48:58,742 INFO util.GSet: capacity      = 2^18 = 262144 entries
2022-09-19 02:48:58,764 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.window.num.buckets = 10
2022-09-19 02:48:58,764 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.num.users = 10
2022-09-19 02:48:58,764 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.windows.minutes = 1,5,25
2022-09-19 02:48:58,768 INFO namenode.FSNamesystem: Retry cache on namenode is enabled
2022-09-19 02:48:58,768 INFO namenode.FSNamesystem: Retry cache will use 0.03 of total heap and retry cache entry expiry time is 600000 millis
2022-09-19 02:48:58,769 INFO util.GSet: Computing capacity for map NameNodeRetryCache
2022-09-19 02:48:58,773 INFO util.GSet: VM type       = 64-bit
2022-09-19 02:48:58,773 INFO util.GSet: 0.029999999329447746% max memory 928 MB = 285.1 KB
2022-09-19 02:48:58,773 INFO util.GSet: capacity      = 2^15 = 32768 entries
2022-09-19 02:48:58,799 INFO namenode.FSImage: Allocated new BlockPoolId: BP-1800723560-192.168.21.11-1663570138789
2022-09-19 02:48:58,821 INFO common.Storage: Storage directory /tmp/hadoop-root/dfs/name has been successfully formatted.
2022-09-19 02:48:58,868 INFO namenode.FSImageFormatProtobuf: Saving image file /tmp/hadoop-root/dfs/name/current/fsimage.ckpt_0000000000000000000 using no compression
2022-09-19 02:48:58,987 INFO namenode.FSImageFormatProtobuf: Image file /tmp/hadoop-root/dfs/name/current/fsimage.ckpt_0000000000000000000 of size 399 bytes saved in 0 seconds .
2022-09-19 02:48:59,007 INFO namenode.NNStorageRetentionManager: Going to retain 1 images with txid >= 0
2022-09-19 02:48:59,025 INFO namenode.FSNamesystem: Stopping services started for active state
2022-09-19 02:48:59,025 INFO namenode.FSNamesystem: Stopping services started for standby state
2022-09-19 02:48:59,037 INFO namenode.FSImage: FSImageSaver clean checkpoint: txid=0 when meet shutdown.
2022-09-19 02:48:59,038 INFO namenode.NameNode: SHUTDOWN_MSG: 
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at pig1/192.168.21.11
************************************************************/

#首先看看pig1的服务

[root;pig1 hadoop]# jps

12009 Jps

#Pig2的

[root;pig2 hadoop]# jps

9976 Jps

#Pig3的

[root;pig3 ~]# jps

9322 Jps

[root;pig1 hadoop]# sbin/start-dfs.sh
Starting namenodes on [pig1]
Starting datanodes
pig5: WARNING: /root/hadoop/logs does not exist. Creating.
pig3: WARNING: /root/hadoop/logs does not exist. Creating.
pig4: WARNING: /root/hadoop/logs does not exist. Creating.
Starting secondary namenodes [pig2]
pig2: WARNING: /root/hadoop/logs does not exist. Creating.

[root;pig1 hadoop]# jps
12870 Jps
12476 NameNode

[root;pig2 hadoop]# jps
10096 SecondaryNameNode
10162 Jps

[root;pig3 ~]# jps
9441 DataNode
9518 Jps

<property>
    <name>dfs.namenode.datanode.registration.ip-hostname-check</name>
    <value>false</value>
</property>

./sbin/start-yarn.sh

[root;pig2 hadoop]# bin/mapred --daemon start historyserver
[root;pig2 hadoop]# jps
6867 Jps
5477 SecondaryNameNode
6172 ResourceManager
6830 JobHistoryServer

[root;pig2 hadoop]# bin/yarn --daemon start proxyserver
[root;pig2 hadoop]# jps
5477 SecondaryNameNode
7019 Jps
6172 ResourceManager
6988 WebAppProxyServer
[root;pig2 hadoop]#

[root;pig1 hadoop]# bin/hdfs dfs -mkdir /users/input
[root;pig1 hadoop]# bin/hdfs dfs -put etc/hadoop/*.xml /users/input
[root;pig1 hadoop]# bin/hdfs dfs -ls /users/input
Found 10 items
-rw-r--r--   3 root supergroup       9213 2022-09-21 03:53 /users/input/capacity-scheduler.xml
-rw-r--r--   3 root supergroup       1022 2022-09-21 03:53 /users/input/core-site.xml
-rw-r--r--   3 root supergroup      11765 2022-09-21 03:53 /users/input/hadoop-policy.xml
-rw-r--r--   3 root supergroup        683 2022-09-21 03:53 /users/input/hdfs-rbf-site.xml
-rw-r--r--   3 root supergroup       1142 2022-09-21 03:53 /users/input/hdfs-site.xml
-rw-r--r--   3 root supergroup        620 2022-09-21 03:53 /users/input/httpfs-site.xml
-rw-r--r--   3 root supergroup       3518 2022-09-21 03:53 /users/input/kms-acls.xml
-rw-r--r--   3 root supergroup        682 2022-09-21 03:53 /users/input/kms-site.xml
-rw-r--r--   3 root supergroup       1403 2022-09-21 03:53 /users/input/mapred-site.xml
-rw-r--r--   3 root supergroup       1154 2022-09-21 03:53 /users/input/yarn-site.xml

[root;pig1 hadoop]# bin/hadoop jar share/hadoop/mapreduce/hadoop-mapreduce-examples-3.3.4.jar grep /users/input /users/output ;dfs[a-z.];;

[root;pig1 hadoop]# bin/hdfs dfs -get /users/output /root/output

[root;pig1 ~]# cat output/*
1	dfsadmin
1	dfs.replication
1	dfs.namenode.secondary.http
1	dfs.namenode.http