新手求助：格式化HDFS文件系统 报错 namenode?报错

刚开始学习hadoop,现在我在虚拟机中模拟了两台centos虚拟机，配置到格式化HDFs文件系统时报错。

百度了一翻并不知道怎么解决，求大神指导，谢谢

[hadoop@Master ~]$ hdfs namenode -format
15/11/11 01:23:32 INFO namenode.NameNode: STARTUP_MSG: 
/************************************************************
STARTUP_MSG: Starting NameNode
STARTUP_MSG:   host = java.net.UnknownHostException: Master.Hadoop: Master.Hadoop
STARTUP_MSG:   args = [-format]
STARTUP_MSG:   version = 2.5.2
STARTUP_MSG:   classpath = /usr/hadoop/conf:/usr/hadoop/share/hadoop/common/lib/servlet-api-2.5.jar:/usr/hadoop/share/hadoop/common/lib/jets3t-0.9.0.jar:/usr/hadoop/share/hadoop/common/lib/hadoop-auth-2.5.2.jar:/usr/hadoop/share/hadoop/common/lib/httpcore-4.2.5.jar:/usr/hadoop/share/hadoop/common/lib/apacheds-kerberos-codec-2.0.0-M15.jar:/usr/hadoop/share/hadoop/common/lib/apacheds-i18n-2.0.0-M15.jar:/usr/hadoop/share/hadoop/common/lib/protobuf-java-2.5.0.jar:/usr/hadoop/share/hadoop/common/lib/commons-logging-1.1.3.jar:/usr/hadoop/share/hadoop/common/lib/jackson-xc-1.9.13.jar:/usr/hadoop/share/hadoop/common/lib/commons-math3-3.1.1.jar:/usr/hadoop/share/hadoop/common/lib/commons-digester-1.8.jar:/usr/hadoop/share/hadoop/common/lib/xmlenc-0.52.jar:/usr/hadoop/share/hadoop/common/lib/jetty-util-6.1.26.jar:/usr/hadoop/share/hadoop/common/lib/netty-3.6.2.Final.jar:/usr/hadoop/share/hadoop/common/lib/hadoop-annotations-2.5.2.jar:/usr/hadoop/share/hadoop/common/lib/jersey-json-1.9.jar:/usr/hadoop/share/hadoop/common/lib/mockito-all-1.8.5.jar:/usr/hadoop/share/hadoop/common/lib/commons-codec-1.4.jar:/usr/hadoop/share/hadoop/common/lib/jersey-core-1.9.jar:/usr/hadoop/share/hadoop/common/lib/jersey-server-1.9.jar:/usr/hadoop/share/hadoop/common/lib/commons-cli-1.2.jar:/usr/hadoop/share/hadoop/common/lib/paranamer-2.3.jar:/usr/hadoop/share/hadoop/common/lib/httpclient-4.2.5.jar:/usr/hadoop/share/hadoop/common/lib/commons-beanutils-core-1.8.0.jar:/usr/hadoop/share/hadoop/common/lib/slf4j-api-1.7.5.jar:/usr/hadoop/share/hadoop/common/lib/jackson-jaxrs-1.9.13.jar:/usr/hadoop/share/hadoop/common/lib/jsr305-1.3.9.jar:/usr/hadoop/share/hadoop/common/lib/jettison-1.1.jar:/usr/hadoop/share/hadoop/common/lib/guava-11.0.2.jar:/usr/hadoop/share/hadoop/common/lib/jsch-0.1.42.jar:/usr/hadoop/share/hadoop/common/lib/activation-1.1.jar:/usr/hadoop/share/hadoop/common/lib/asm-3.2.jar:/usr/hadoop/share/hadoop/common/lib/commons-beanutils-1.7.0.jar:/usr/hadoop/share/hadoop/common/lib/commons-configuration-1.6.jar:/usr/hadoop/share/hadoop/common/lib/commons-compress-1.4.1.jar:/usr/hadoop/share/hadoop/common/lib/java-xmlbuilder-0.4.jar:/usr/hadoop/share/hadoop/common/lib/jasper-runtime-5.5.23.jar:/usr/hadoop/share/hadoop/common/lib/api-util-1.0.0-M20.jar:/usr/hadoop/share/hadoop/common/lib/hamcrest-core-1.3.jar:/usr/hadoop/share/hadoop/common/lib/jetty-6.1.26.jar:/usr/hadoop/share/hadoop/common/lib/avro-1.7.4.jar:/usr/hadoop/share/hadoop/common/lib/stax-api-1.0-2.jar:/usr/hadoop/share/hadoop/common/lib/jaxb-api-2.2.2.jar:/usr/hadoop/share/hadoop/common/lib/commons-httpclient-3.1.jar:/usr/hadoop/share/hadoop/common/lib/commons-el-1.0.jar:/usr/hadoop/share/hadoop/common/lib/jasper-compiler-5.5.23.jar:/usr/hadoop/share/hadoop/common/lib/zookeeper-3.4.6.jar:/usr/hadoop/share/hadoop/common/lib/jackson-core-asl-1.9.13.jar:/usr/hadoop/share/hadoop/common/lib/xz-1.0.jar:/usr/hadoop/share/hadoop/common/lib/jaxb-impl-2.2.3-1.jar:/usr/hadoop/share/hadoop/common/lib/commons-net-3.1.jar:/usr/hadoop/share/hadoop/common/lib/commons-io-2.4.jar:/usr/hadoop/share/hadoop/common/lib/slf4j-log4j12-1.7.5.jar:/usr/hadoop/share/hadoop/common/lib/snappy-java-1.0.4.1.jar:/usr/hadoop/share/hadoop/common/lib/jackson-mapper-asl-1.9.13.jar:/usr/hadoop/share/hadoop/common/lib/junit-4.11.jar:/usr/hadoop/share/hadoop/common/lib/commons-lang-2.6.jar:/usr/hadoop/share/hadoop/common/lib/commons-collections-3.2.1.jar:/usr/hadoop/share/hadoop/common/lib/log4j-1.2.17.jar:/usr/hadoop/share/hadoop/common/lib/jsp-api-2.1.jar:/usr/hadoop/share/hadoop/common/lib/api-asn1-api-1.0.0-M20.jar:/usr/hadoop/share/hadoop/common/hadoop-common-2.5.2.jar:/usr/hadoop/share/hadoop/common/hadoop-nfs-2.5.2.jar:/usr/hadoop/share/hadoop/common/hadoop-common-2.5.2-tests.jar:/usr/hadoop/share/hadoop/hdfs:/usr/hadoop/share/hadoop/hdfs/lib/servlet-api-2.5.jar:/usr/hadoop/share/hadoop/hdfs/lib/protobuf-java-2.5.0.jar:/usr/hadoop/share/hadoop/hdfs/lib/commons-logging-1.1.3.jar:/usr/hadoop/share/hadoop/hdfs/lib/commons-daemon-1.0.13.jar:/usr/hadoop/share/hadoop/hdfs/lib/xmlenc-0.52.jar:/usr/hadoop/share/hadoop/hdfs/lib/jetty-util-6.1.26.jar:/usr/hadoop/share/hadoop/hdfs/lib/netty-3.6.2.Final.jar:/usr/hadoop/share/hadoop/hdfs/lib/commons-codec-1.4.jar:/usr/hadoop/share/hadoop/hdfs/lib/jersey-core-1.9.jar:/usr/hadoop/share/hadoop/hdfs/lib/jersey-server-1.9.jar:/usr/hadoop/share/hadoop/hdfs/lib/commons-cli-1.2.jar:/usr/hadoop/share/hadoop/hdfs/lib/jsr305-1.3.9.jar:/usr/hadoop/share/hadoop/hdfs/lib/guava-11.0.2.jar:/usr/hadoop/share/hadoop/hdfs/lib/asm-3.2.jar:/usr/hadoop/share/hadoop/hdfs/lib/jasper-runtime-5.5.23.jar:/usr/hadoop/share/hadoop/hdfs/lib/jetty-6.1.26.jar:/usr/hadoop/share/hadoop/hdfs/lib/commons-el-1.0.jar:/usr/hadoop/share/hadoop/hdfs/lib/jackson-core-asl-1.9.13.jar:/usr/hadoop/share/hadoop/hdfs/lib/commons-io-2.4.jar:/usr/hadoop/share/hadoop/hdfs/lib/jackson-mapper-asl-1.9.13.jar:/usr/hadoop/share/hadoop/hdfs/lib/commons-lang-2.6.jar:/usr/hadoop/share/hadoop/hdfs/lib/log4j-1.2.17.jar:/usr/hadoop/share/hadoop/hdfs/lib/jsp-api-2.1.jar:/usr/hadoop/share/hadoop/hdfs/hadoop-hdfs-nfs-2.5.2.jar:/usr/hadoop/share/hadoop/hdfs/hadoop-hdfs-2.5.2.jar:/usr/hadoop/share/hadoop/hdfs/hadoop-hdfs-2.5.2-tests.jar:/usr/hadoop/share/hadoop/yarn/lib/servlet-api-2.5.jar:/usr/hadoop/share/hadoop/yarn/lib/protobuf-java-2.5.0.jar:/usr/hadoop/share/hadoop/yarn/lib/commons-logging-1.1.3.jar:/usr/hadoop/share/hadoop/yarn/lib/jackson-xc-1.9.13.jar:/usr/hadoop/share/hadoop/yarn/lib/jersey-client-1.9.jar:/usr/hadoop/share/hadoop/yarn/lib/jersey-guice-1.9.jar:/usr/hadoop/share/hadoop/yarn/lib/jetty-util-6.1.26.jar:/usr/hadoop/share/hadoop/yarn/lib/leveldbjni-all-1.8.jar:/usr/hadoop/share/hadoop/yarn/lib/netty-3.6.2.Final.jar:/usr/hadoop/share/hadoop/yarn/lib/jersey-json-1.9.jar:/usr/hadoop/share/hadoop/yarn/lib/jline-0.9.94.jar:/usr/hadoop/share/hadoop/yarn/lib/commons-codec-1.4.jar:/usr/hadoop/share/hadoop/yarn/lib/jersey-core-1.9.jar:/usr/hadoop/share/hadoop/yarn/lib/guice-3.0.jar:/usr/hadoop/share/hadoop/yarn/lib/jersey-server-1.9.jar:/usr/hadoop/share/hadoop/yarn/lib/commons-cli-1.2.jar:/usr/hadoop/share/hadoop/yarn/lib/jackson-jaxrs-1.9.13.jar:/usr/hadoop/share/hadoop/yarn/lib/jsr305-1.3.9.jar:/usr/hadoop/share/hadoop/yarn/lib/jettison-1.1.jar:/usr/hadoop/share/hadoop/yarn/lib/guava-11.0.2.jar:/usr/hadoop/share/hadoop/yarn/lib/activation-1.1.jar:/usr/hadoop/share/hadoop/yarn/lib/asm-3.2.jar:/usr/hadoop/share/hadoop/yarn/lib/guice-servlet-3.0.jar:/usr/hadoop/share/hadoop/yarn/lib/commons-compress-1.4.1.jar:/usr/hadoop/share/hadoop/yarn/lib/javax.inject-1.jar:/usr/hadoop/share/hadoop/yarn/lib/aopalliance-1.0.jar:/usr/hadoop/share/hadoop/yarn/lib/jetty-6.1.26.jar:/usr/hadoop/share/hadoop/yarn/lib/stax-api-1.0-2.jar:/usr/hadoop/share/hadoop/yarn/lib/jaxb-api-2.2.2.jar:/usr/hadoop/share/hadoop/yarn/lib/commons-httpclient-3.1.jar:/usr/hadoop/share/hadoop/yarn/lib/zookeeper-3.4.6.jar:/usr/hadoop/share/hadoop/yarn/lib/jackson-core-asl-1.9.13.jar:/usr/hadoop/share/hadoop/yarn/lib/xz-1.0.jar:/usr/hadoop/share/hadoop/yarn/lib/jaxb-impl-2.2.3-1.jar:/usr/hadoop/share/hadoop/yarn/lib/commons-io-2.4.jar:/usr/hadoop/share/hadoop/yarn/lib/jackson-mapper-asl-1.9.13.jar:/usr/hadoop/share/hadoop/yarn/lib/commons-lang-2.6.jar:/usr/hadoop/share/hadoop/yarn/lib/commons-collections-3.2.1.jar:/usr/hadoop/share/hadoop/yarn/lib/log4j-1.2.17.jar:/usr/hadoop/share/hadoop/yarn/hadoop-yarn-common-2.5.2.jar:/usr/hadoop/share/hadoop/yarn/hadoop-yarn-applications-distributedshell-2.5.2.jar:/usr/hadoop/share/hadoop/yarn/hadoop-yarn-server-resourcemanager-2.5.2.jar:/usr/hadoop/share/hadoop/yarn/hadoop-yarn-server-web-proxy-2.5.2.jar:/usr/hadoop/share/hadoop/yarn/hadoop-yarn-server-applicationhistoryservice-2.5.2.jar:/usr/hadoop/share/hadoop/yarn/hadoop-yarn-server-nodemanager-2.5.2.jar:/usr/hadoop/share/hadoop/yarn/hadoop-yarn-api-2.5.2.jar:/usr/hadoop/share/hadoop/yarn/hadoop-yarn-applications-unmanaged-am-launcher-2.5.2.jar:/usr/hadoop/share/hadoop/yarn/hadoop-yarn-server-common-2.5.2.jar:/usr/hadoop/share/hadoop/yarn/hadoop-yarn-server-tests-2.5.2.jar:/usr/hadoop/share/hadoop/yarn/hadoop-yarn-client-2.5.2.jar:/usr/hadoop/share/hadoop/mapreduce/lib/protobuf-java-2.5.0.jar:/usr/hadoop/share/hadoop/mapreduce/lib/jersey-guice-1.9.jar:/usr/hadoop/share/hadoop/mapreduce/lib/leveldbjni-all-1.8.jar:/usr/hadoop/share/hadoop/mapreduce/lib/netty-3.6.2.Final.jar:/usr/hadoop/share/hadoop/mapreduce/lib/hadoop-annotations-2.5.2.jar:/usr/hadoop/share/hadoop/mapreduce/lib/jersey-core-1.9.jar:/usr/hadoop/share/hadoop/mapreduce/lib/guice-3.0.jar:/usr/hadoop/share/hadoop/mapreduce/lib/jersey-server-1.9.jar:/usr/hadoop/share/hadoop/mapreduce/lib/paranamer-2.3.jar:/usr/hadoop/share/hadoop/mapreduce/lib/asm-3.2.jar:/usr/hadoop/share/hadoop/mapreduce/lib/guice-servlet-3.0.jar:/usr/hadoop/share/hadoop/mapreduce/lib/commons-compress-1.4.1.jar:/usr/hadoop/share/hadoop/mapreduce/lib/javax.inject-1.jar:/usr/hadoop/share/hadoop/mapreduce/lib/hamcrest-core-1.3.jar:/usr/hadoop/share/hadoop/mapreduce/lib/aopalliance-1.0.jar:/usr/hadoop/share/hadoop/mapreduce/lib/avro-1.7.4.jar:/usr/hadoop/share/hadoop/mapreduce/lib/jackson-core-asl-1.9.13.jar:/usr/hadoop/share/hadoop/mapreduce/lib/xz-1.0.jar:/usr/hadoop/share/hadoop/mapreduce/lib/commons-io-2.4.jar:/usr/hadoop/share/hadoop/mapreduce/lib/snappy-java-1.0.4.1.jar:/usr/hadoop/share/hadoop/mapreduce/lib/jackson-mapper-asl-1.9.13.jar:/usr/hadoop/share/hadoop/mapreduce/lib/junit-4.11.jar:/usr/hadoop/share/hadoop/mapreduce/lib/log4j-1.2.17.jar:/usr/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.5.2.jar:/usr/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-app-2.5.2.jar:/usr/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-2.5.2.jar:/usr/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.5.2-tests.jar:/usr/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-shuffle-2.5.2.jar:/usr/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.5.2.jar:/usr/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-common-2.5.2.jar:/usr/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-plugins-2.5.2.jar:/usr/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-core-2.5.2.jar:/usr/hadoop/contrib/capacity-scheduler/*.jar
STARTUP_MSG:   build = https://git-wip-us.apache.org/repos/asf/hadoop.git -r cc72e9b000545b86b75a61f4835eb86d57bfafc0; compiled by 'jenkins' on 2014-11-14T23:45Z
STARTUP_MSG:   java = 1.7.0_79
************************************************************/
15/11/11 01:23:32 INFO namenode.NameNode: registered UNIX signal handlers for [TERM, HUP, INT]
15/11/11 01:23:32 INFO namenode.NameNode: createNameNode [-format]
15/11/11 01:23:32 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
15/11/11 01:23:32 FATAL namenode.NameNode: Exception in namenode join
java.lang.InternalError: internal error: SHA-1 not available.
at sun.security.provider.SecureRandom.init(SecureRandom.java:108)
at sun.security.provider.SecureRandom.<init>(SecureRandom.java:79)
at java.security.SecureRandom.getDefaultPRNG(SecureRandom.java:191)
at java.security.SecureRandom.<init>(SecureRandom.java:155)
at com.sun.crypto.provider.SunJCE.<clinit>(SunJCE.java:94)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at java.lang.Class.newInstance(Class.java:379)
at sun.security.jca.ProviderConfig$2.run(ProviderConfig.java:221)
at sun.security.jca.ProviderConfig$2.run(ProviderConfig.java:206)
at java.security.AccessController.doPrivileged(Native Method)
at sun.security.jca.ProviderConfig.doLoadProvider(ProviderConfig.java:206)
at sun.security.jca.ProviderConfig.getProvider(ProviderConfig.java:187)
at sun.security.jca.ProviderList.getProvider(ProviderList.java:232)
at sun.security.jca.ProviderList$3.get(ProviderList.java:147)
at sun.security.jca.ProviderList$3.get(ProviderList.java:142)
at java.util.AbstractList$Itr.next(AbstractList.java:358)
at java.security.SecureRandom.getPrngAlgorithm(SecureRandom.java:542)
at java.security.SecureRandom.getDefaultPRNG(SecureRandom.java:187)
at java.security.SecureRandom.<init>(SecureRandom.java:155)
at java.util.UUID$Holder.<clinit>(UUID.java:96)
at java.util.UUID.randomUUID(UUID.java:142)
at org.apache.hadoop.hdfs.server.namenode.NNStorage.newClusterID(NNStorage.java:905)
at org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:913)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1354)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1473)
15/11/11 01:23:32 INFO util.ExitUtil: Exiting with status 1
15/11/11 01:23:32 INFO namenode.NameNode: SHUTDOWN_MSG: 
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at java.net.UnknownHostException: Master.Hadoop: Master.Hadoop
************************************************************/