我已经在我的笔记本电脑上运行了hadoop。当hadoop启动时，我执行命令start-all.cmd。然后它以 4 个守护进程启动。 cmd 显示 4 个进程中的 3 个
SHUTDOWN_MSG：关闭DESKTOP-T7R9JV1/192.168.1.100的NameNode
我如何避免这种情况
STARTUP_MSG: Starting NameNode
STARTUP_MSG: host = DESKTOP-T7R9JV1/192.168.1.101
STARTUP_MSG: args = []
STARTUP_MSG: version = 2.9.1
19/09/08 22:03:13 INFO namenode.NameNode: createNameNode []
19/09/08 22:03:14 INFO impl.MetricsConfig: loaded properties from hadoop-metrics2.properties
19/09/08 22:03:14 INFO impl.MetricsSystemImpl: Scheduled Metric snapshot period at 10 second(s).
19/09/08 22:03:14 INFO impl.MetricsSystemImpl: NameNode metrics system started
19/09/08 22:03:14 INFO namenode.NameNode: fs.defaultFS is hdfs://0.0.0.0:19000
19/09/08 22:03:14 INFO namenode.NameNode: Clients are to use 0.0.0.0:19000 to access this namenode/service.
19/09/08 22:03:14 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
19/09/08 22:03:15 INFO util.JvmPauseMonitor: Starting JVM pause monitor
19/09/08 22:03:15 INFO hdfs.DFSUtil: Starting Web-server for hdfs at: http://0.0.0.0:50070
19/09/08 22:03:15 INFO mortbay.log: Logging to org.slf4j.impl.Log4jLoggerAdapter(org.mortbay.log) via org.mortbay.log.Slf4jLog
19/09/08 22:03:15 INFO server.AuthenticationFilter: Unable to initialize FileSignerSecretProvider, falling back to use random secrets.
19/09/08 22:03:15 INFO http.HttpRequestLog: Http request log for http.requests.namenode is not defined
19/09/08 22:03:15 INFO http.HttpServer2: Added global filter 'safety' (class=org.apache.hadoop.http.HttpServer2$QuotingInputFilter)
19/09/08 22:03:15 INFO http.HttpServer2: Added filter static_user_filter (class=org.apache.hadoop.http.lib.StaticUserWebFilter$StaticUserFilter) to context hdfs
19/09/08 22:03:15 INFO http.HttpServer2: Added filter static_user_filter (class=org.apache.hadoop.http.lib.StaticUserWebFilter$StaticUserFilter) to context logs
19/09/08 22:03:15 INFO http.HttpServer2: Added filter static_user_filter (class=org.apache.hadoop.http.lib.StaticUserWebFilter$StaticUserFilter) to context static
19/09/08 22:03:16 INFO http.HttpServer2: Added filter 'org.apache.hadoop.hdfs.web.AuthFilter' (class=org.apache.hadoop.hdfs.web.AuthFilter)
19/09/08 22:03:16 INFO http.HttpServer2: addJerseyResourcePackage: packageName=org.apache.hadoop.hdfs.server.namenode.web.resources;org.apache.hadoop.hdfs.web.resources, pathSpec=/webhdfs/v1/*
19/09/08 22:03:16 INFO http.HttpServer2: Jetty bound to port 50070
19/09/08 22:03:16 INFO mortbay.log: jetty-6.1.26
19/09/08 22:03:16 INFO mortbay.log: Started [email protected]:50070
19/09/08 22:03:17 ERROR common.Util: Syntax error in URI C:\BigData\hadoop-2.9.1\data\namenode. Please check hdfs configuration.
java.net.URISyntaxException: Illegal character in opaque part at index 2: C:\BigData\hadoop-2.9.1\data\namenode
at java.net.URI$Parser.fail(URI.java:2848)
at java.net.URI$Parser.checkChars(URI.java:3021)
at java.net.URI$Parser.parse(URI.java:3058)
at java.net.URI.<init>(URI.java:588)
at org.apache.hadoop.hdfs.server.common.Util.stringAsURI(Util.java:49)
at org.apache.hadoop.hdfs.server.common.Util.stringCollectionAsURIs(Util.java:99)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getStorageDirs(FSNamesystem.java:1462)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getNamespaceDirs(FSNamesystem.java:1417)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkConfiguration(FSNamesystem.java:617)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:669)
at org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:666)
at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:728)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:953)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:932)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1673)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1741)
19/09/08 22:03:17 WARN common.Util: Path C:\BigData\hadoop-2.9.1\data\namenode should be specified as a URI in configuration files. Please update hdfs configuration.
19/09/08 22:03:17 ERROR common.Util: Syntax error in URI C:\BigData\hadoop-2.9.1\data\namenode. Please check hdfs configuration.
java.net.URISyntaxException: Illegal character in opaque part at index 2: C:\BigData\hadoop-2.9.1\data\namenode
at java.net.URI$Parser.fail(URI.java:2848)
at java.net.URI$Parser.checkChars(URI.java:3021)
at java.net.URI$Parser.parse(URI.java:3058)
at java.net.URI.<init>(URI.java:588)
at org.apache.hadoop.hdfs.server.common.Util.stringAsURI(Util.java:49)
at org.apache.hadoop.hdfs.server.common.Util.stringCollectionAsURIs(Util.java:99)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getStorageDirs(FSNamesystem.java:1462)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getNamespaceEditsDirs(FSNamesystem.java:1507)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getNamespaceEditsDirs(FSNamesystem.java:1476)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkConfiguration(FSNamesystem.java:619)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:669)
at org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:666)
at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:728)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:953)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:932)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1673)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1741)
19/09/08 22:03:17 WARN common.Util: Path C:\BigData\hadoop-2.9.1\data\namenode should be specified as a URI in configuration files. Please update hdfs configuration.
19/09/08 22:03:17 WARN namenode.FSNamesystem: Only one image storage directory (dfs.namenode.name.dir) configured. Beware of data loss due to lack of redundant storage directories!
19/09/08 22:03:17 WARN namenode.FSNamesystem: Only one namespace edits storage directory (dfs.namenode.edits.dir) configured. Beware of data loss due to lack of redundant storage directories!
19/09/08 22:03:17 ERROR common.Util: Syntax error in URI C:\BigData\hadoop-2.9.1\data\namenode. Please check hdfs configuration.
java.net.URISyntaxException: Illegal character in opaque part at index 2: C:\BigData\hadoop-2.9.1\data\namenode
at java.net.URI$Parser.fail(URI.java:2848)
at java.net.URI$Parser.checkChars(URI.java:3021)
at java.net.URI$Parser.parse(URI.java:3058)
at java.net.URI.<init>(URI.java:588)
at org.apache.hadoop.hdfs.server.common.Util.stringAsURI(Util.java:49)
at org.apache.hadoop.hdfs.server.common.Util.stringCollectionAsURIs(Util.java:99)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getStorageDirs(FSNamesystem.java:1462)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getNamespaceDirs(FSNamesystem.java:1417)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:670)
at org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:666)
at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:728)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:953)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:932)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1673)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1741)
19/09/08 22:03:17 WARN common.Util: Path C:\BigData\hadoop-2.9.1\data\namenode should be specified as a URI in configuration files. Please update hdfs configuration.
19/09/08 22:03:17 ERROR common.Util: Syntax error in URI C:\BigData\hadoop-2.9.1\data\namenode. Please check hdfs configuration.
java.net.URISyntaxException: Illegal character in opaque part at index 2: C:\BigData\hadoop-2.9.1\data\namenode
at java.net.URI$Parser.fail(URI.java:2848)
at java.net.URI$Parser.checkChars(URI.java:3021)
at java.net.URI$Parser.parse(URI.java:3058)
at java.net.URI.<init>(URI.java:588)
at org.apache.hadoop.hdfs.server.common.Util.stringAsURI(Util.java:49)
at org.apache.hadoop.hdfs.server.common.Util.stringCollectionAsURIs(Util.java:99)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getStorageDirs(FSNamesystem.java:1462)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getNamespaceEditsDirs(FSNamesystem.java:1507)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getNamespaceEditsDirs(FSNamesystem.java:1476)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:670)
at org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:666)
at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:728)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:953)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:932)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1673)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1741)
19/09/08 22:03:17 WARN common.Util: Path C:\BigData\hadoop-2.9.1\data\namenode should be specified as a URI in configuration files. Please update hdfs configuration.
19/09/08 22:03:17 INFO namenode.FSEditLog: Edit logging is async:true
19/09/08 22:03:17 INFO namenode.FSNamesystem: KeyProvider: null
19/09/08 22:03:17 INFO namenode.FSNamesystem: fsLock is fair: true
19/09/08 22:03:17 INFO namenode.FSNamesystem: Detailed lock hold time metrics enabled: false
19/09/08 22:03:17 INFO namenode.FSNamesystem: fsOwner = User (auth:SIMPLE)
19/09/08 22:03:17 INFO namenode.FSNamesystem: supergroup = supergroup
19/09/08 22:03:17 INFO namenode.FSNamesystem: isPermissionEnabled = true
19/09/08 22:03:17 INFO namenode.FSNamesystem: HA Enabled: false
19/09/08 22:03:17 INFO common.Util: dfs.datanode.fileio.profiling.sampling.percentage set to 0. Disabling file IO profiling
19/09/08 22:03:17 INFO blockmanagement.DatanodeManager: dfs.block.invalidate.limit: configured=1000, counted=60, effected=1000
19/09/08 22:03:17 INFO blockmanagement.DatanodeManager: dfs.namenode.datanode.registration.ip-hostname-check=true
19/09/08 22:03:17 INFO blockmanagement.BlockManager: dfs.namenode.startup.delay.block.deletion.sec is set to 000:00:00:00.000
19/09/08 22:03:17 INFO blockmanagement.BlockManager: The block deletion will start around 2019 Sep 08 22:03:17
19/09/08 22:03:17 INFO util.GSet: Computing capacity for map BlocksMap
19/09/08 22:03:17 INFO util.GSet: VM type = 32-bit
19/09/08 22:03:17 INFO util.GSet: 2.0% max memory 966.7 MB = 19.3 MB
19/09/08 22:03:17 INFO util.GSet: capacity = 2^22 = 4194304 entries
19/09/08 22:03:17 INFO blockmanagement.BlockManager: dfs.block.access.token.enable=false
19/09/08 22:03:17 WARN conf.Configuration: No unit for dfs.heartbeat.interval(3) assuming SECONDS
19/09/08 22:03:17 WARN conf.Configuration: No unit for dfs.namenode.safemode.extension(30000) assuming MILLISECONDS
19/09/08 22:03:17 INFO blockmanagement.BlockManagerSafeMode: dfs.namenode.safemode.threshold-pct = 0.9990000128746033
19/09/08 22:03:17 INFO blockmanagement.BlockManagerSafeMode: dfs.namenode.safemode.min.datanodes = 0
19/09/08 22:03:17 INFO blockmanagement.BlockManagerSafeMode: dfs.namenode.safemode.extension = 30000
19/09/08 22:03:17 INFO blockmanagement.BlockManager: defaultReplication = 1
19/09/08 22:03:17 INFO blockmanagement.BlockManager: maxReplication = 512
19/09/08 22:03:17 INFO blockmanagement.BlockManager: minReplication = 1
19/09/08 22:03:17 INFO blockmanagement.BlockManager: maxReplicationStreams = 2
19/09/08 22:03:17 INFO blockmanagement.BlockManager: replicationRecheckInterval = 3000
19/09/08 22:03:17 INFO blockmanagement.BlockManager: encryptDataTransfer = false
19/09/08 22:03:17 INFO blockmanagement.BlockManager: maxNumBlocksToLog = 1000
19/09/08 22:03:17 INFO namenode.FSNamesystem: Append Enabled: true
19/09/08 22:03:17 INFO util.GSet: Computing capacity for map INodeMap
19/09/08 22:03:17 INFO util.GSet: VM type = 32-bit
19/09/08 22:03:17 INFO util.GSet: 1.0% max memory 966.7 MB = 9.7 MB
19/09/08 22:03:17 INFO util.GSet: capacity = 2^21 = 2097152 entries
19/09/08 22:03:17 INFO namenode.FSDirectory: ACLs enabled? false
19/09/08 22:03:17 INFO namenode.FSDirectory: XAttrs enabled? true
19/09/08 22:03:17 INFO namenode.NameNode: Caching file names occurring more than 10 times
19/09/08 22:03:17 INFO snapshot.SnapshotManager: Loaded config captureOpenFiles: falseskipCaptureAccessTimeOnlyChange: false
19/09/08 22:03:17 INFO util.GSet: Computing capacity for map cachedBlocks
19/09/08 22:03:17 INFO util.GSet: VM type = 32-bit
19/09/08 22:03:17 INFO util.GSet: 0.25% max memory 966.7 MB = 2.4 MB
19/09/08 22:03:17 INFO util.GSet: capacity = 2^19 = 524288 entries
19/09/08 22:03:17 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.window.num.buckets = 10
19/09/08 22:03:17 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.num.users = 10
19/09/08 22:03:17 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.windows.minutes = 1,5,25
19/09/08 22:03:17 INFO namenode.FSNamesystem: Retry cache on namenode is enabled
19/09/08 22:03:17 INFO namenode.FSNamesystem: Retry cache will use 0.03 of total heap and retry cache entry expiry time is 600000 millis
19/09/08 22:03:17 INFO util.GSet: Computing capacity for map NameNodeRetryCache
19/09/08 22:03:17 INFO util.GSet: VM type = 32-bit
19/09/08 22:03:17 INFO util.GSet: 0.029999999329447746% max memory 966.7 MB = 297.0 KB
19/09/08 22:03:17 INFO util.GSet: capacity = 2^16 = 65536 entries
19/09/08 22:03:17 ERROR namenode.NameNode: Failed to start namenode.
java.lang.UnsatisfiedLinkError: org.apache.hadoop.io.nativeio.NativeIO$Windows.access0(Ljava/lang/String;I)Z
at org.apache.hadoop.io.nativeio.NativeIO$Windows.access0(Native Method)
at org.apache.hadoop.io.nativeio.NativeIO$Windows.access(NativeIO.java:606)
at org.apache.hadoop.fs.FileUtil.canWrite(FileUtil.java:1006)
at org.apache.hadoop.hdfs.server.common.Storage$StorageDirectory.analyzeStorage(Storage.java:558)
at org.apache.hadoop.hdfs.server.common.Storage$StorageDirectory.analyzeStorage(Storage.java:518)
at org.apache.hadoop.hdfs.server.namenode.FSImage.recoverStorageDirs(FSImage.java:370)
at org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:226)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFSImage(FSNamesystem.java:1048)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:681)
at org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:666)
at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:728)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:953)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:932)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1673)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1741)
19/09/08 22:03:17 INFO util.ExitUtil: Exiting with status 1: java.lang.UnsatisfiedLinkError: org.apache.hadoop.io.nativeio.NativeIO$Windows.access0(Ljava/lang/String;I)Z
19/09/08 22:03:17 INFO namenode.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at DESKTOP-T7R9JV1/192.168.1.101
************************************************************/
索引 2 处不透明部分存在非法字符
索引 2 是反斜杠，它不是有效的 URI 字符
在配置文件中，您需要使用正斜杠和文件 URI 的协议
例如，改变
C:\BigData\hadoop-2.9.1\data\namenode
到
file:/C:/BigData/hadoop-2.9.1/data/namenode
在我的问题中，我从互联网上查找了更多解决方案。
JAVA_HOMEC:\Progra~2\Java\<JDK version>JAVA_HOME设置为C:\Progra~1\Java\<JDK version>64位java版本。
将 64 位 Java 版本设置为
JAVA_HOMEstart-all.cmdnamenodenamenodestop-all.cmdhadoop namenode –formatstart-all.cmd它 100% 解决了我的问题，并且非常适合我。
您必须通过
hadoop namenode –format[假设您在 Windows 计算机上遇到该问题]
我观察到人们为此实施了两种解决方案，解决了这个问题。
第一：
在管理员模式下运行命令提示符 (CMD)，您可以在其中运行命令。如果您现在启动 Hadoop，大多数服务都应该启动并运行。
第二个：
如果上述解决方案仍然不起作用，请从此处下载最新的 Microsoft Visual C++ 版本。安装它，重新启动系统，然后启动 Hadoop。
观看此 Youtube 视频以供参考。
希望这有帮助！