1、环境配置：
-1、core-site.xml文件
1 <configuration> 2 <property> 3 <name>fs.defaultFS</name> 4 <value>hdfs://bigdata-study-104:8020</value> 5 </property> 6 <property> 7 <name>hadoop.tmp.dir</name> 8 <value>/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/data/tmp</value> 9 </property> 10 </configuration>
-2、hdfs-site.xml文件
1 <configuration> 2 <property> 3 <name>dfs.replication</name> 4 <value>1</value> 5 </property> 6 <property> 7 <name>dfs.permissions.enabled</name> 8 <value>false</value> 9 </property> 10 <property> 11 <name>dfs.namenode.secondary.http-address</name> 12 <value>bigdata-study-104:50090</value> 13 </property> 14 </configuration>
2、格式化日志
1 [walloce@bigdata-study-104 hadoop-2.5.0-cdh5.3.6]$ bin/hdfs namenode -fotmate 2 18/01/01 04:20:11 INFO namenode.NameNode: STARTUP_MSG: 3 /************************************************************ 4 STARTUP_MSG: Starting NameNode 5 STARTUP_MSG: host = bigdata-study-104/192.168.192.104 6 STARTUP_MSG: args = [-fotmate] 7 STARTUP_MSG: version = 2.5.0-cdh5.3.6 8 STARTUP_MSG: classpath = /opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/etc/hadoop:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/stax-api-1.0-2.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/jsch-0.1.42.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/commons-el-1.0.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/jackson-mapper-asl-1.8.8.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/snappy-java-1.0.4.1.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/jersey-server-1.9.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/hadoop-auth-2.5.0-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/slf4j-api-1.7.5.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/guava-11.0.2.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/jets3t-0.9.0.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/paranamer-2.3.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/jetty-6.1.26.cloudera.4.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/protobuf-java-2.5.0.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/asm-3.2.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/api-asn1-api-1.0.0-M20.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/apacheds-i18n-2.0.0-M15.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/jsp-api-2.1.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/commons-digester-1.8.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/hadoop-annotations-2.5.0-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/zookeeper-3.4.5-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/activation-1.1.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/jersey-json-1.9.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/avro-1.7.6-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/commons-logging-1.1.3.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/gson-2.2.4.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/log4j-1.2.17.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/commons-collections-3.2.1.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/xmlenc-0.52.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/jackson-core-asl-1.8.8.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/xz-1.0.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/hamcrest-core-1.3.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/servlet-api-2.5.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/commons-beanutils-1.7.0.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/jasper-compiler-5.5.23.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/curator-recipes-2.6.0.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/commons-httpclient-3.1.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/curator-framework-2.6.0.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/commons-codec-1.4.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/junit-4.11.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/slf4j-log4j12-1.7.5.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/commons-lang-2.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/jsr305-1.3.9.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/jasper-runtime-5.5.23.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/httpcore-4.2.5.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/httpclient-4.2.5.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/commons-cli-1.2.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/netty-3.6.2.Final.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/jersey-core-1.9.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/commons-compress-1.4.1.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/commons-math3-3.1.1.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/apacheds-kerberos-codec-2.0.0-M15.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/jaxb-impl-2.2.3-1.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/jackson-jaxrs-1.8.8.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/jettison-1.1.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/jetty-util-6.1.26.cloudera.4.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/jackson-xc-1.8.8.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/java-xmlbuilder-0.4.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/api-util-1.0.0-M20.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/commons-io-2.4.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/jaxb-api-2.2.2.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/commons-beanutils-core-1.8.0.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/mockito-all-1.8.5.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/commons-net-3.1.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/commons-configuration-1.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/lib/curator-client-2.6.0.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/hadoop-common-2.5.0-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/hadoop-common-2.5.0-cdh5.3.6-tests.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/common/hadoop-nfs-2.5.0-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/hdfs:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/hdfs/lib/commons-daemon-1.0.13.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/hdfs/lib/commons-el-1.0.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/hdfs/lib/jackson-mapper-asl-1.8.8.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/hdfs/lib/jersey-server-1.9.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/hdfs/lib/guava-11.0.2.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/hdfs/lib/jetty-6.1.26.cloudera.4.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/hdfs/lib/protobuf-java-2.5.0.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/hdfs/lib/asm-3.2.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/hdfs/lib/jsp-api-2.1.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/hdfs/lib/commons-logging-1.1.3.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/hdfs/lib/log4j-1.2.17.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/hdfs/lib/xmlenc-0.52.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/hdfs/lib/jackson-core-asl-1.8.8.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/hdfs/lib/servlet-api-2.5.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/hdfs/lib/commons-codec-1.4.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/hdfs/lib/commons-lang-2.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/hdfs/lib/jsr305-1.3.9.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/hdfs/lib/jasper-runtime-5.5.23.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/hdfs/lib/commons-cli-1.2.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/hdfs/lib/netty-3.6.2.Final.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/hdfs/lib/jersey-core-1.9.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/hdfs/lib/jetty-util-6.1.26.cloudera.4.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/hdfs/lib/commons-io-2.4.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/hdfs/hadoop-hdfs-nfs-2.5.0-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/hdfs/hadoop-hdfs-2.5.0-cdh5.3.6-tests.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/hdfs/hadoop-hdfs-2.5.0-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/guice-servlet-3.0.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/stax-api-1.0-2.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/jackson-mapper-asl-1.8.8.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/jersey-server-1.9.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/jersey-client-1.9.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/guava-11.0.2.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/jetty-6.1.26.cloudera.4.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/protobuf-java-2.5.0.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/asm-3.2.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/jersey-guice-1.9.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/leveldbjni-all-1.8.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/zookeeper-3.4.5-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/activation-1.1.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/jersey-json-1.9.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/commons-logging-1.1.3.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/log4j-1.2.17.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/commons-collections-3.2.1.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/jackson-core-asl-1.8.8.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/xz-1.0.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/guice-3.0.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/jline-0.9.94.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/servlet-api-2.5.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/commons-httpclient-3.1.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/commons-codec-1.4.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/commons-lang-2.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/jsr305-1.3.9.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/commons-cli-1.2.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/jersey-core-1.9.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/commons-compress-1.4.1.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/jaxb-impl-2.2.3-1.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/jackson-jaxrs-1.8.8.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/jettison-1.1.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/javax.inject-1.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/jetty-util-6.1.26.cloudera.4.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/jackson-xc-1.8.8.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/aopalliance-1.0.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/commons-io-2.4.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/lib/jaxb-api-2.2.2.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/hadoop-yarn-server-applicationhistoryservice-2.5.0-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/hadoop-yarn-common-2.5.0-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/hadoop-yarn-applications-unmanaged-am-launcher-2.5.0-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/hadoop-yarn-server-tests-2.5.0-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/hadoop-yarn-server-nodemanager-2.5.0-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/hadoop-yarn-api-2.5.0-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/hadoop-yarn-server-common-2.5.0-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/hadoop-yarn-client-2.5.0-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/hadoop-yarn-applications-distributedshell-2.5.0-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/hadoop-yarn-server-resourcemanager-2.5.0-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/yarn/hadoop-yarn-server-web-proxy-2.5.0-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/lib/guice-servlet-3.0.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/lib/jackson-mapper-asl-1.8.8.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/lib/snappy-java-1.0.4.1.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/lib/jersey-server-1.9.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/lib/paranamer-2.3.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/lib/protobuf-java-2.5.0.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/lib/asm-3.2.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/lib/jersey-guice-1.9.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/lib/leveldbjni-all-1.8.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/lib/hadoop-annotations-2.5.0-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/lib/avro-1.7.6-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/lib/log4j-1.2.17.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/lib/jackson-core-asl-1.8.8.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/lib/xz-1.0.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/lib/hamcrest-core-1.3.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/lib/guice-3.0.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/lib/junit-4.11.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/lib/netty-3.6.2.Final.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/lib/jersey-core-1.9.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/lib/commons-compress-1.4.1.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/lib/javax.inject-1.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/lib/aopalliance-1.0.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/lib/commons-io-2.4.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.5.0-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/hadoop-mapreduce-client-app-2.5.0-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/hadoop-mapreduce-client-shuffle-2.5.0-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/hadoop-mapreduce-client-common-2.5.0-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/hadoop-mapreduce-client-core-2.5.0-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/hadoop-mapreduce-client-nativetask-2.5.0-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-plugins-2.5.0-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.5.0-cdh5.3.6-tests.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.5.0-cdh5.3.6.jar:/opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-2.5.0-cdh5.3.6.jar:/contrib/capacity-scheduler/*.jar 9 STARTUP_MSG: build = http://github.com/cloudera/hadoop -r 6743ef286bfdd317b600adbdb154f982cf2fac7a; compiled by 'jenkins' on 2015-07-28T22:14Z 10 STARTUP_MSG: java = 1.7.0_67 11 ************************************************************/ 12 18/01/01 04:20:11 INFO namenode.NameNode: registered UNIX signal handlers for [TERM, HUP, INT] 13 18/01/01 04:20:11 INFO namenode.NameNode: createNameNode [-fotmate] 14 Usage: java NameNode [-backup] | 15 [-checkpoint] | 16 [-format [-clusterid cid ] [-force] [-nonInteractive] ] | 17 [-upgrade [-clusterid cid] [-renameReserved<k-v pairs>] ] | 18 [-upgradeOnly [-clusterid cid] [-renameReserved<k-v pairs>] ] | 19 [-rollback] | 20 [-rollingUpgrade <rollback|downgrade|started> ] | 21 [-finalize] | 22 [-importCheckpoint] | 23 [-initializeSharedEdits] | 24 [-bootstrapStandby] | 25 [-recover [ -force] ] | 26 [-metadataVersion ] ] 27 28 18/01/01 04:20:11 INFO namenode.NameNode: SHUTDOWN_MSG: 29 /************************************************************ 30 SHUTDOWN_MSG: Shutting down NameNode at bigdata-study-104/192.168.192.104 31 ************************************************************/
3、格式化完成，没有发现什么比较明显的错误提示信息，启动datanode和namenode
jps查看进程，发现只有datanode.
于是查看namenode日志：tail -100 logs/hadoop-walloce-namenode-bigdata-study-104.log
1 2018-01-01 04:21:06,497 INFO org.apache.hadoop.metrics2.impl.MetricsConfig: loaded properties from hadoop-metrics2.properties 2 2018-01-01 04:21:06,588 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Scheduled snapshot period at 10 second(s). 3 2018-01-01 04:21:06,588 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: NameNode metrics system started 4 2018-01-01 04:21:06,589 INFO org.apache.hadoop.hdfs.server.namenode.NameNode: fs.defaultFS is hdfs://bigdata-study-104:8020 5 2018-01-01 04:21:06,590 INFO org.apache.hadoop.hdfs.server.namenode.NameNode: Clients are to use bigdata-study-104:8020 to access this namenode/service. 6 2018-01-01 04:21:06,722 WARN org.apache.hadoop.util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable 7 2018-01-01 04:21:06,907 INFO org.apache.hadoop.hdfs.DFSUtil: Starting web server as: ${dfs.web.authentication.kerberos.principal} 8 2018-01-01 04:21:06,908 INFO org.apache.hadoop.hdfs.DFSUtil: Starting Web-server for hdfs at: http://0.0.0.0:50070 9 2018-01-01 04:21:06,961 INFO org.mortbay.log: Logging to org.slf4j.impl.Log4jLoggerAdapter(org.mortbay.log) via org.mortbay.log.Slf4jLog 10 2018-01-01 04:21:06,968 INFO org.apache.hadoop.http.HttpRequestLog: Http request log for http.requests.namenode is not defined 11 2018-01-01 04:21:06,990 INFO org.apache.hadoop.http.HttpServer2: Added global filter 'safety' (class=org.apache.hadoop.http.HttpServer2$QuotingInputFilter) 12 2018-01-01 04:21:06,993 INFO org.apache.hadoop.http.HttpServer2: Added filter static_user_filter (class=org.apache.hadoop.http.lib.StaticUserWebFilter$StaticUserFilter) to context hdfs 13 2018-01-01 04:21:06,999 INFO org.apache.hadoop.http.HttpServer2: Added filter static_user_filter (class=org.apache.hadoop.http.lib.StaticUserWebFilter$StaticUserFilter) to context logs 14 2018-01-01 04:21:06,999 INFO org.apache.hadoop.http.HttpServer2: Added filter static_user_filter (class=org.apache.hadoop.http.lib.StaticUserWebFilter$StaticUserFilter) to context static 15 2018-01-01 04:21:07,059 INFO org.apache.hadoop.http.HttpServer2: Added filter 'org.apache.hadoop.hdfs.web.AuthFilter' (class=org.apache.hadoop.hdfs.web.AuthFilter) 16 2018-01-01 04:21:07,070 INFO org.apache.hadoop.http.HttpServer2: addJerseyResourcePackage: packageName=org.apache.hadoop.hdfs.server.namenode.web.resources;org.apache.hadoop.hdfs.web.resources, pathSpec=/webhdfs/v1/* 17 2018-01-01 04:21:07,099 INFO org.apache.hadoop.http.HttpServer2: Jetty bound to port 50070 18 2018-01-01 04:21:07,099 INFO org.mortbay.log: jetty-6.1.26.cloudera.4 19 2018-01-01 04:21:07,326 INFO org.mortbay.log: Started HttpServer2$SelectChannelConnectorWithSafeStartup@0.0.0.0:50070 20 2018-01-01 04:21:07,402 WARN org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Only one image storage directory (dfs.namenode.name.dir) configured. Beware of data loss due to lack of redundant storage directories! 21 2018-01-01 04:21:07,402 WARN org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Only one namespace edits storage directory (dfs.namenode.edits.dir) configured. Beware of data loss due to lack of redundant storage directories! 22 2018-01-01 04:21:07,449 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem: No KeyProvider found. 23 2018-01-01 04:21:07,455 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem: fsLock is fair:true 24 2018-01-01 04:21:07,492 INFO org.apache.hadoop.hdfs.server.blockmanagement.DatanodeManager: dfs.block.invalidate.limit=1000 25 2018-01-01 04:21:07,492 INFO org.apache.hadoop.hdfs.server.blockmanagement.DatanodeManager: dfs.namenode.datanode.registration.ip-hostname-check=true 26 2018-01-01 04:21:07,494 INFO org.apache.hadoop.hdfs.server.blockmanagement.BlockManager: dfs.namenode.startup.delay.block.deletion.sec is set to 000:00:00:00.000 27 2018-01-01 04:21:07,495 INFO org.apache.hadoop.hdfs.server.blockmanagement.BlockManager: The block deletion will start around 2018 Jan 01 04:21:07 28 2018-01-01 04:21:07,497 INFO org.apache.hadoop.util.GSet: Computing capacity for map BlocksMap 29 2018-01-01 04:21:07,497 INFO org.apache.hadoop.util.GSet: VM type = 64-bit 30 2018-01-01 04:21:07,498 INFO org.apache.hadoop.util.GSet: 2.0% max memory 889 MB = 17.8 MB 31 2018-01-01 04:21:07,498 INFO org.apache.hadoop.util.GSet: capacity = 2^21 = 2097152 entries 32 2018-01-01 04:21:07,502 INFO org.apache.hadoop.hdfs.server.blockmanagement.BlockManager: dfs.block.access.token.enable=false 33 2018-01-01 04:21:07,503 INFO org.apache.hadoop.hdfs.server.blockmanagement.BlockManager: defaultReplication = 1 34 2018-01-01 04:21:07,503 INFO org.apache.hadoop.hdfs.server.blockmanagement.BlockManager: maxReplication = 512 35 2018-01-01 04:21:07,503 INFO org.apache.hadoop.hdfs.server.blockmanagement.BlockManager: minReplication = 1 36 2018-01-01 04:21:07,503 INFO org.apache.hadoop.hdfs.server.blockmanagement.BlockManager: maxReplicationStreams = 2 37 2018-01-01 04:21:07,503 INFO org.apache.hadoop.hdfs.server.blockmanagement.BlockManager: shouldCheckForEnoughRacks = false 38 2018-01-01 04:21:07,503 INFO org.apache.hadoop.hdfs.server.blockmanagement.BlockManager: replicationRecheckInterval = 3000 39 2018-01-01 04:21:07,503 INFO org.apache.hadoop.hdfs.server.blockmanagement.BlockManager: encryptDataTransfer = false 40 2018-01-01 04:21:07,503 INFO org.apache.hadoop.hdfs.server.blockmanagement.BlockManager: maxNumBlocksToLog = 1000 41 2018-01-01 04:21:07,507 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem: fsOwner = walloce (auth:SIMPLE) 42 2018-01-01 04:21:07,507 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem: supergroup = supergroup 43 2018-01-01 04:21:07,507 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem: isPermissionEnabled = false 44 2018-01-01 04:21:07,507 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem: HA Enabled: false 45 2018-01-01 04:21:07,509 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Append Enabled: true 46 2018-01-01 04:21:07,668 INFO org.apache.hadoop.util.GSet: Computing capacity for map INodeMap 47 2018-01-01 04:21:07,668 INFO org.apache.hadoop.util.GSet: VM type = 64-bit 48 2018-01-01 04:21:07,668 INFO org.apache.hadoop.util.GSet: 1.0% max memory 889 MB = 8.9 MB 49 2018-01-01 04:21:07,668 INFO org.apache.hadoop.util.GSet: capacity = 2^20 = 1048576 entries 50 2018-01-01 04:21:07,669 INFO org.apache.hadoop.hdfs.server.namenode.NameNode: Caching file names occuring more than 10 times 51 2018-01-01 04:21:07,675 INFO org.apache.hadoop.util.GSet: Computing capacity for map cachedBlocks 52 2018-01-01 04:21:07,676 INFO org.apache.hadoop.util.GSet: VM type = 64-bit 53 2018-01-01 04:21:07,676 INFO org.apache.hadoop.util.GSet: 0.25% max memory 889 MB = 2.2 MB 54 2018-01-01 04:21:07,676 INFO org.apache.hadoop.util.GSet: capacity = 2^18 = 262144 entries 55 2018-01-01 04:21:07,677 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem: dfs.namenode.safemode.threshold-pct = 0.9990000128746033 56 2018-01-01 04:21:07,677 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem: dfs.namenode.safemode.min.datanodes = 0 57 2018-01-01 04:21:07,677 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem: dfs.namenode.safemode.extension = 30000 58 2018-01-01 04:21:07,678 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Retry cache on namenode is enabled 59 2018-01-01 04:21:07,678 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Retry cache will use 0.03 of total heap and retry cache entry expiry time is 600000 millis 60 2018-01-01 04:21:07,680 INFO org.apache.hadoop.util.GSet: Computing capacity for map NameNodeRetryCache 61 2018-01-01 04:21:07,680 INFO org.apache.hadoop.util.GSet: VM type = 64-bit 62 2018-01-01 04:21:07,680 INFO org.apache.hadoop.util.GSet: 0.029999999329447746% max memory 889 MB = 273.1 KB 63 2018-01-01 04:21:07,680 INFO org.apache.hadoop.util.GSet: capacity = 2^15 = 32768 entries 64 2018-01-01 04:21:07,684 INFO org.apache.hadoop.hdfs.server.namenode.NNConf: ACLs enabled? false 65 2018-01-01 04:21:07,684 INFO org.apache.hadoop.hdfs.server.namenode.NNConf: XAttrs enabled? true 66 2018-01-01 04:21:07,684 INFO org.apache.hadoop.hdfs.server.namenode.NNConf: Maximum size of an xattr: 16384 67 2018-01-01 04:21:07,685 WARN org.apache.hadoop.hdfs.server.common.Storage: Storage directory /opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/data/tmp/dfs/name does not exist 68 2018-01-01 04:21:07,686 WARN org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Encountered exception loading fsimage 69 org.apache.hadoop.hdfs.server.common.InconsistentFSStateException: Directory /opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/data/tmp/dfs/name is in an inconsistent state: storage directory does not exist or is not accessible. 70 at org.apache.hadoop.hdfs.server.namenode.FSImage.recoverStorageDirs(FSImage.java:314) 71 at org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:202) 72 at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFSImage(FSNamesystem.java:1006) 73 at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:736) 74 at org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:533) 75 at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:589) 76 at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:756) 77 at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:740) 78 at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1430) 79 at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1496) 80 2018-01-01 04:21:07,689 INFO org.mortbay.log: Stopped HttpServer2$SelectChannelConnectorWithSafeStartup@0.0.0.0:50070 81 2018-01-01 04:21:07,790 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Stopping NameNode metrics system... 82 2018-01-01 04:21:07,791 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: NameNode metrics system stopped. 83 2018-01-01 04:21:07,791 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: NameNode metrics system shutdown complete. 84 2018-01-01 04:21:07,791 FATAL org.apache.hadoop.hdfs.server.namenode.NameNode: Failed to start namenode. 85 org.apache.hadoop.hdfs.server.common.InconsistentFSStateException: Directory /opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/data/tmp/dfs/name is in an inconsistent state: storage directory does not exist or is not accessible. 86 at org.apache.hadoop.hdfs.server.namenode.FSImage.recoverStorageDirs(FSImage.java:314) 87 at org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:202) 88 at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFSImage(FSNamesystem.java:1006) 89 at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:736) 90 at org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:533) 91 at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:589) 92 at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:756) 93 at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:740) 94 at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1430) 95 at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1496) 96 2018-01-01 04:21:07,795 INFO org.apache.hadoop.util.ExitUtil: Exiting with status 1 97 2018-01-01 04:21:07,797 INFO org.apache.hadoop.hdfs.server.namenode.NameNode: SHUTDOWN_MSG: 98 /************************************************************ 99 SHUTDOWN_MSG: Shutting down NameNode at bigdata-study-104/192.168.192.104 100 ************************************************************/
发现比较明显的错误是：
1 2018-01-01 04:21:07,791 FATAL org.apache.hadoop.hdfs.server.namenode.NameNode: Failed to start namenode. 2 org.apache.hadoop.hdfs.server.common.InconsistentFSStateException: Directory /opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/data/tmp/dfs/name is in an inconsistent state: storage directory does not exist or is not accessible.
原因是这个目录在格式化的时候没有生成。
解决：
删除目录（之前我有安装过，后来删除重新安装才出现的这个问题）: /user/tmp
重新执行：bin/hdfs namenode -format格式化
1 18/01/01 04:28:00 INFO namenode.NameNode: registered UNIX signal handlers for [TERM, HUP, INT] 2 18/01/01 04:28:00 INFO namenode.NameNode: createNameNode [-format] 3 18/01/01 04:28:01 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable 4 Formatting using clusterid: CID-292b734e-c2be-4a96-98c8-4399eaec7a59 5 18/01/01 04:28:01 INFO namenode.FSNamesystem: No KeyProvider found. 6 18/01/01 04:28:01 INFO namenode.FSNamesystem: fsLock is fair:true 7 18/01/01 04:28:01 INFO blockmanagement.DatanodeManager: dfs.block.invalidate.limit=1000 8 18/01/01 04:28:01 INFO blockmanagement.DatanodeManager: dfs.namenode.datanode.registration.ip-hostname-check=true 9 18/01/01 04:28:01 INFO blockmanagement.BlockManager: dfs.namenode.startup.delay.block.deletion.sec is set to 000:00:00:00.000 10 18/01/01 04:28:01 INFO blockmanagement.BlockManager: The block deletion will start around 2018 Jan 01 04:28:01 11 18/01/01 04:28:01 INFO util.GSet: Computing capacity for map BlocksMap 12 18/01/01 04:28:01 INFO util.GSet: VM type = 64-bit 13 18/01/01 04:28:01 INFO util.GSet: 2.0% max memory 889 MB = 17.8 MB 14 18/01/01 04:28:01 INFO util.GSet: capacity = 2^21 = 2097152 entries 15 18/01/01 04:28:01 INFO blockmanagement.BlockManager: dfs.block.access.token.enable=false 16 18/01/01 04:28:01 INFO blockmanagement.BlockManager: defaultReplication = 1 17 18/01/01 04:28:01 INFO blockmanagement.BlockManager: maxReplication = 512 18 18/01/01 04:28:01 INFO blockmanagement.BlockManager: minReplication = 1 19 18/01/01 04:28:01 INFO blockmanagement.BlockManager: maxReplicationStreams = 2 20 18/01/01 04:28:01 INFO blockmanagement.BlockManager: shouldCheckForEnoughRacks = false 21 18/01/01 04:28:01 INFO blockmanagement.BlockManager: replicationRecheckInterval = 3000 22 18/01/01 04:28:01 INFO blockmanagement.BlockManager: encryptDataTransfer = false 23 18/01/01 04:28:01 INFO blockmanagement.BlockManager: maxNumBlocksToLog = 1000 24 18/01/01 04:28:02 INFO namenode.FSNamesystem: fsOwner = walloce (auth:SIMPLE) 25 18/01/01 04:28:02 INFO namenode.FSNamesystem: supergroup = supergroup 26 18/01/01 04:28:02 INFO namenode.FSNamesystem: isPermissionEnabled = false 27 18/01/01 04:28:02 INFO namenode.FSNamesystem: HA Enabled: false 28 18/01/01 04:28:02 INFO namenode.FSNamesystem: Append Enabled: true 29 18/01/01 04:28:02 INFO util.GSet: Computing capacity for map INodeMap 30 18/01/01 04:28:02 INFO util.GSet: VM type = 64-bit 31 18/01/01 04:28:02 INFO util.GSet: 1.0% max memory 889 MB = 8.9 MB 32 18/01/01 04:28:02 INFO util.GSet: capacity = 2^20 = 1048576 entries 33 18/01/01 04:28:02 INFO namenode.NameNode: Caching file names occuring more than 10 times 34 18/01/01 04:28:02 INFO util.GSet: Computing capacity for map cachedBlocks 35 18/01/01 04:28:02 INFO util.GSet: VM type = 64-bit 36 18/01/01 04:28:02 INFO util.GSet: 0.25% max memory 889 MB = 2.2 MB 37 18/01/01 04:28:02 INFO util.GSet: capacity = 2^18 = 262144 entries 38 18/01/01 04:28:02 INFO namenode.FSNamesystem: dfs.namenode.safemode.threshold-pct = 0.9990000128746033 39 18/01/01 04:28:02 INFO namenode.FSNamesystem: dfs.namenode.safemode.min.datanodes = 0 40 18/01/01 04:28:02 INFO namenode.FSNamesystem: dfs.namenode.safemode.extension = 30000 41 18/01/01 04:28:02 INFO namenode.FSNamesystem: Retry cache on namenode is enabled 42 18/01/01 04:28:02 INFO namenode.FSNamesystem: Retry cache will use 0.03 of total heap and retry cache entry expiry time is 600000 millis 43 18/01/01 04:28:02 INFO util.GSet: Computing capacity for map NameNodeRetryCache 44 18/01/01 04:28:02 INFO util.GSet: VM type = 64-bit 45 18/01/01 04:28:02 INFO util.GSet: 0.029999999329447746% max memory 889 MB = 273.1 KB 46 18/01/01 04:28:02 INFO util.GSet: capacity = 2^15 = 32768 entries 47 18/01/01 04:28:02 INFO namenode.NNConf: ACLs enabled? false 48 18/01/01 04:28:02 INFO namenode.NNConf: XAttrs enabled? true 49 18/01/01 04:28:02 INFO namenode.NNConf: Maximum size of an xattr: 16384 50 18/01/01 04:28:02 INFO namenode.FSImage: Allocated new BlockPoolId: BP-849058852-192.168.192.104-1514752082294 51 18/01/01 04:28:02 INFO common.Storage: Storage directory /opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/data/tmp/dfs/name has been successfully formatted. 52 18/01/01 04:28:02 INFO namenode.NNStorageRetentionManager: Going to retain 1 images with txid >= 0 53 18/01/01 04:28:02 INFO util.ExitUtil: Exiting with status 0 54 18/01/01 04:28:02 INFO namenode.NameNode: SHUTDOWN_MSG: 55 /************************************************************ 56 SHUTDOWN_MSG: Shutting down NameNode at bigdata-study-104/192.168.192.104 57 ************************************************************/
关键信息：
1 18/01/01 04:28:02 INFO namenode.FSImage: Allocated new BlockPoolId: BP-849058852-192.168.192.104-1514752082294 2 18/01/01 04:28:02 INFO common.Storage: Storage directory /opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/data/tmp/dfs/name has been successfully formatted. 3 18/01/01 04:28:02 INFO namenode.NNStorageRetentionManager: Going to retain 1 images with txid >= 0 4 18/01/01 04:28:02 INFO util.ExitUtil: Exiting with status 0
提示格式化成功。
4、重新启动hdfs.
1 starting datanode, logging to /opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/logs/hadoop-walloce-datanode-bigdata-study-104.out 2 [walloce@bigdata-study-104 hadoop-2.5.0-cdh5.3.6]$ sbin/hadoop-daemon.sh start namenode 3 starting namenode, logging to /opt/modules/cdh/hadoop-2.5.0-cdh5.3.6/logs/hadoop-walloce-namenode-bigdata-study-104.out 4 [walloce@bigdata-study-104 hadoop-2.5.0-cdh5.3.6]$ ^C 5 [walloce@bigdata-study-104 hadoop-2.5.0-cdh5.3.6]$ jps 6 3097 Jps 7 2970 NameNode 8 2894 DataNode
结束，重新搭建成功（小白初学中）!
参考链接：http://blog.csdn.net/caoshichaocaoshichao/article/details/12879821