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优秀的个人博客,低调大师

GitHub VSC —— 在线开发工具

推荐大家使用https://gitee.com 速度更快，项目直接部署、Android 自动构建！ 私有库永久免费，提供手机客户端，国内首个同时支持 Git 和 SVN 的代码托管平台） 如何一键导入 Github 仓库：https://blog.gitee.com/2018/06/05/github_to_gitee/ GitHub 可以托管各种 git 库，并提供一个 Web 界面，但与其它像SourceForge或Google Code这样的服务不同，GitHub 的独特卖点在于从另外一个项目进行分支的简易性。为一个项目贡献代码非常简单：首先点击项目站点的 "fork" 按钮，然后将代码检出并将修改加入到刚才分出的代码库中，最后通过内建的 "pull request" 机制向项目负责人申请代码合并。 Git 是一个分布式的版本控制系统，最初由 Linus Torvalds 编写用作 Linux 内核代码的管理。在推出后，Git 在其它项目中也取得了很大成功，尤其是在 Ruby 社区中。目前，包括Rubinius和Merb在内的很多知名项目都使用了 Git。Git 同样可以被诸如 Capistrano 和 Vlad the Deployer 这样的部署工具所使用。
2021-02-19
优秀的个人博客,低调大师

(在线等。。。)这是出现死锁了吗 ？

求大神解释下。。。 java.net.SocketTimeoutException: Read timed out at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.read(SocketInputStream.java:150) at java.net.SocketInputStream.read(SocketInputStream.java:121) at java.io.BufferedInputStream.fill(BufferedInputStream.java:246) at java.io.BufferedInputStream.read1(BufferedInputStream.java:286) at java.io.BufferedInputStream.read(BufferedInputStream.java:345) at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:703) at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:647) at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1535) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1440) at showandshare.netty.autoselflock.sdk.util.HttpUrlConnection.httpurlconnectionpost(HttpUrlConnection.java:64) at showandshare.netty.autoselflock.service.impl.UserServiceImpl.findById2(UserServiceImpl.java:40) at showandshare.netty.autoselflock.service.impl.UserServiceImpl$$FastClassByCGLIB$$44adb788.invoke(<generated>) at org.springframework.cglib.reflect.FastMethod.invoke(FastMethod.java:57) at showandshare.netty.autoselflock.sdk.util.CGLibCode.execute(CGLibCode.java:20) at showandshare.netty.autoselflock.sdk.core.server.BusinessHandler._execute(BusinessHandler.java:73) at showandshare.netty.autoselflock.sdk.core.server.BusinessHandler.handler(BusinessHandler.java:49) at showandshare.netty.autoselflock.sdk.core.server.Session.exec(Session.java:40) at showandshare.netty.autoselflock.sdk.core.server.NettyServerHandler.channelRead(NettyServerHandler.java:37) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:349) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:327) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:349) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:327) at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:428) at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:288) at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:262) at io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:243) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:349) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:327) at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1336) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:349) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:911) at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:123) at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:544) at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:485) at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:399) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:371) at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:742) 2018-04-25 13:40:20 Full thread dump Java HotSpot(TM) 64-Bit Server VM (25.31-b07 mixed mode): "RMI TCP Connection(2)-192.168.206.1" #35 daemon prio=5 os_prio=0 tid=0x000000001c002000 nid=0x6f5c runnable [0x000000002b3ae000] java.lang.Thread.State: RUNNABLE at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.read(SocketInputStream.java:150) at java.net.SocketInputStream.read(SocketInputStream.java:121) at java.io.BufferedInputStream.fill(BufferedInputStream.java:246) at java.io.BufferedInputStream.read(BufferedInputStream.java:265) - locked <0x00000000d8632218> (a java.io.BufferedInputStream) at java.io.FilterInputStream.read(FilterInputStream.java:83) at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:550) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$240(TCPTransport.java:683) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler$$Lambda$2/1800386742.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Locked ownable synchronizers: - <0x00000000d82f7938> (a java.util.concurrent.ThreadPoolExecutor$Worker) "JMX server connection timeout 34" #34 daemon prio=5 os_prio=0 tid=0x000000001bdc8000 nid=0x4ef0 in Object.wait() [0x000000002b0af000] java.lang.Thread.State: TIMED_WAITING (on object monitor) at java.lang.Object.wait(Native Method) at com.sun.jmx.remote.internal.ServerCommunicatorAdmin$Timeout.run(ServerCommunicatorAdmin.java:168) - locked <0x00000000d83ce538> (a [I) at java.lang.Thread.run(Thread.java:745) Locked ownable synchronizers: - None "RMI Scheduler(0)" #33 daemon prio=5 os_prio=0 tid=0x000000001bdc9800 nid=0x80f4 waiting on condition [0x000000002afae000] java.lang.Thread.State: TIMED_WAITING (parking) at sun.misc.Unsafe.park(Native Method) - parking to wait for <0x00000000d809da00> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject) at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215) at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078) at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093) at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809) at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Locked ownable synchronizers: - None "RMI TCP Connection(1)-192.168.206.1" #32 daemon prio=5 os_prio=0 tid=0x000000001bdcc000 nid=0x3738 runnable [0x000000002aeae000] java.lang.Thread.State: RUNNABLE at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.read(SocketInputStream.java:150) at java.net.SocketInputStream.read(SocketInputStream.java:121) at java.io.BufferedInputStream.fill(BufferedInputStream.java:246) at java.io.BufferedInputStream.read(BufferedInputStream.java:265) - locked <0x00000000d836bcd0> (a java.io.BufferedInputStream) at java.io.FilterInputStream.read(FilterInputStream.java:83) at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:550) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$240(TCPTransport.java:683) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler$$Lambda$2/1800386742.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Locked ownable synchronizers: - <0x00000000d82f3880> (a java.util.concurrent.ThreadPoolExecutor$Worker) "RMI TCP Accept-0" #31 daemon prio=5 os_prio=0 tid=0x000000001bdc6000 nid=0x5a98 runnable [0x000000002acae000] java.lang.Thread.State: RUNNABLE at java.net.DualStackPlainSocketImpl.accept0(Native Method) at java.net.DualStackPlainSocketImpl.socketAccept(DualStackPlainSocketImpl.java:131) at java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:404) at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:199) - locked <0x00000000d80a1c78> (a java.net.SocksSocketImpl) at java.net.ServerSocket.implAccept(ServerSocket.java:545) at java.net.ServerSocket.accept(ServerSocket.java:513) at sun.management.jmxremote.LocalRMIServerSocketFactory$1.accept(LocalRMIServerSocketFactory.java:52) at sun.rmi.transport.tcp.TCPTransport$AcceptLoop.executeAcceptLoop(TCPTransport.java:400) at sun.rmi.transport.tcp.TCPTransport$AcceptLoop.run(TCPTransport.java:372) at java.lang.Thread.run(Thread.java:745) Locked ownable synchronizers: - None "Druid-ConnectionPool-Destroy-2076739459" #29 daemon prio=10 os_prio=2 tid=0x000000001bdca800 nid=0x6828 waiting on condition [0x000000002a2af000] java.lang.Thread.State: TIMED_WAITING (sleeping) at java.lang.Thread.sleep(Native Method) at com.alibaba.druid.pool.DruidDataSource$DestroyConnectionThread.run(DruidDataSource.java:2250) Locked ownable synchronizers: - None "Druid-ConnectionPool-Create-2076739459" #28 daemon prio=10 os_prio=2 tid=0x000000001bdc7800 nid=0x1018 waiting on condition [0x000000002a1ae000] java.lang.Thread.State: WAITING (parking) at sun.misc.Unsafe.park(Native Method) - parking to wait for <0x00000000828fbf38> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject) at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175) at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039) at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2157) Locked ownable synchronizers: - None "Abandoned connection cleanup thread" #27 daemon prio=10 os_prio=2 tid=0x000000001bdc9000 nid=0x8048 in Object.wait() [0x000000002a0af000] java.lang.Thread.State: TIMED_WAITING (on object monitor) at java.lang.Object.wait(Native Method) at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:142) - locked <0x00000000d6a6d1a8> (a java.lang.ref.ReferenceQueue$Lock) at com.mysql.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:43) Locked ownable synchronizers: - None "nioEventLoopGroup-3-8" #26 prio=10 os_prio=2 tid=0x000000001bdcc800 nid=0x83ec runnable [0x0000000026f7e000] java.lang.Thread.State: RUNNABLE at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method) at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll(WindowsSelectorImpl.java:296) at sun.nio.ch.WindowsSelectorImpl$SubSelector.access$400(WindowsSelectorImpl.java:278) at sun.nio.ch.WindowsSelectorImpl.doSelect(WindowsSelectorImpl.java:159) at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86) - locked <0x000000008275c368> (a io.netty.channel.nio.SelectedSelectionKeySet) - locked <0x000000008275e3e8> (a java.util.Collections$UnmodifiableSet) - locked <0x000000008275c288> (a sun.nio.ch.WindowsSelectorImpl) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97) at io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:665) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:325) at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:742) at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:145) at java.lang.Thread.run(Thread.java:745) Locked ownable synchronizers: - None "nioEventLoopGroup-3-7" #25 prio=10 os_prio=2 tid=0x000000001bdc6800 nid=0x4f3c runnable [0x0000000026e7d000] java.lang.Thread.State: RUNNABLE at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.read(SocketInputStream.java:150) at java.net.SocketInputStream.read(SocketInputStream.java:121) at java.io.BufferedInputStream.fill(BufferedInputStream.java:246) at java.io.BufferedInputStream.read1(BufferedInputStream.java:286) at java.io.BufferedInputStream.read(BufferedInputStream.java:345) - locked <0x00000000d7781268> (a java.io.BufferedInputStream) at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:703) at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:647) at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1535) - locked <0x00000000d777e590> (a sun.net.www.protocol.http.HttpURLConnection) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1440) - locked <0x00000000d777e590> (a sun.net.www.protocol.http.HttpURLConnection) at showandshare.netty.autoselflock.sdk.util.HttpUrlConnection.httpurlconnectionpost(HttpUrlConnection.java:54) at showandshare.netty.autoselflock.service.impl.UserServiceImpl.findById2(UserServiceImpl.java:36) at showandshare.netty.autoselflock.service.impl.UserServiceImpl$$FastClassByCGLIB$$44adb788.invoke(<generated>) at org.springframework.cglib.reflect.FastMethod.invoke(FastMethod.java:57) at showandshare.netty.autoselflock.sdk.util.CGLibCode.execute(CGLibCode.java:20) at showandshare.netty.autoselflock.sdk.core.server.BusinessHandler._execute(BusinessHandler.java:73) at showandshare.netty.autoselflock.sdk.core.server.BusinessHandler.handler(BusinessHandler.java:49) at showandshare.netty.autoselflock.sdk.core.server.Session.exec(Session.java:37) at showandshare.netty.autoselflock.sdk.core.server.NettyServerHandler.channelRead(NettyServerHandler.java:37) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:349) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:327) at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:349) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:327) at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:428) at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:288) at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:262) at io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:243) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:349) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:327) at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1336) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:349) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:335) at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:911) at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:123) at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:544) at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:485) at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:399) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:371) at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:742) at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:145) at java.lang.Thread.run(Thread.java:745) Locked ownable synchronizers: - None "nioEventLoopGroup-3-6" #24 prio=10 os_prio=2 tid=0x000000001bdcb000 nid=0x3968 runnable [0x0000000026d7e000] java.lang.Thread.State: RUNNABLE at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method) at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll(WindowsSelectorImpl.java:296) at sun.nio.ch.WindowsSelectorImpl$SubSelector.access$400(WindowsSelectorImpl.java:278) at sun.nio.ch.WindowsSelectorImpl.doSelect(WindowsSelectorImpl.java:159) at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86) - locked <0x00000000827a31b0> (a io.netty.channel.nio.SelectedSelectionKeySet) - locked <0x00000000827a5230> (a java.util.Collections$UnmodifiableSet) - locked <0x00000000827a30e0> (a sun.nio.ch.WindowsSelectorImpl) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97) at io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:665) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:325) at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:742) at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:145) at java.lang.Thread.run(Thread.java:745) Locked ownable synchronizers: - None "threadDeathWatcher-4-1" #23 daemon prio=1 os_prio=-2 tid=0x000000001fdc5800 nid=0x6d08 waiting on condition [0x0000000021b1f000] java.lang.Thread.State: TIMED_WAITING (sleeping) at java.lang.Thread.sleep(Native Method) at io.netty.util.ThreadDeathWatcher$Watcher.run(ThreadDeathWatcher.java:147) at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:145) at java.lang.Thread.run(Thread.java:745) Locked ownable synchronizers: - None "nioEventLoopGroup-3-5" #22 prio=10 os_prio=2 tid=0x000000001ce7c000 nid=0x4a20 runnable [0x000000002181e000] java.lang.Thread.State: RUNNABLE at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method) at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll(WindowsSelectorImpl.java:296) at sun.nio.ch.WindowsSelectorImpl$SubSelector.access$400(WindowsSelectorImpl.java:278) at sun.nio.ch.WindowsSelectorImpl.doSelect(WindowsSelectorImpl.java:159) at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86) - locked <0x000000008286f4b0> (a io.netty.channel.nio.SelectedSelectionKeySet) - locked <0x00000000828715a0> (a java.util.Collections$UnmodifiableSet) - locked <0x000000008286f3e0> (a sun.nio.ch.WindowsSelectorImpl) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97) at io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:665) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:325) at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:742) at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:145) at java.lang.Thread.run(Thread.java:745) Locked ownable synchronizers: - None "nioEventLoopGroup-3-4" #21 prio=10 os_prio=2 tid=0x000000001e6ff800 nid=0x63d0 runnable [0x000000002171e000] java.lang.Thread.State: RUNNABLE at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method) at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll(WindowsSelectorImpl.java:296) at sun.nio.ch.WindowsSelectorImpl$SubSelector.access$400(WindowsSelectorImpl.java:278) at sun.nio.ch.WindowsSelectorImpl.doSelect(WindowsSelectorImpl.java:159) at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86) - locked <0x0000000082803cc8> (a io.netty.channel.nio.SelectedSelectionKeySet) - locked <0x0000000082805db8> (a java.util.Collections$UnmodifiableSet) - locked <0x0000000082803bf8> (a sun.nio.ch.WindowsSelectorImpl) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97) at io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:665) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:325) at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:742) at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:145) at java.lang.Thread.run(Thread.java:745) Locked ownable synchronizers: - None "nioEventLoopGroup-3-3" #20 prio=10 os_prio=2 tid=0x000000001e297000 nid=0x1f58 runnable [0x000000002161e000] java.lang.Thread.State: RUNNABLE at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method) at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll(WindowsSelectorImpl.java:296) at sun.nio.ch.WindowsSelectorImpl$SubSelector.access$400(WindowsSelectorImpl.java:278) at sun.nio.ch.WindowsSelectorImpl.doSelect(WindowsSelectorImpl.java:159) at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86) - locked <0x0000000082822a50> (a io.netty.channel.nio.SelectedSelectionKeySet) - locked <0x0000000082824b40> (a java.util.Collections$UnmodifiableSet) - locked <0x0000000082822980> (a sun.nio.ch.WindowsSelectorImpl) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97) at io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:665) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:325) at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:742) at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:145) at java.lang.Thread.run(Thread.java:745) Locked ownable synchronizers: - None "nioEventLoopGroup-3-2" #19 prio=10 os_prio=2 tid=0x000000001dd97800 nid=0x18e4 runnable [0x000000002151e000] java.lang.Thread.State: RUNNABLE at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method) at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll(WindowsSelectorImpl.java:296) at sun.nio.ch.WindowsSelectorImpl$SubSelector.access$400(WindowsSelectorImpl.java:278) at sun.nio.ch.WindowsSelectorImpl.doSelect(WindowsSelectorImpl.java:159) at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86) - locked <0x0000000082841830> (a io.netty.channel.nio.SelectedSelectionKeySet) - locked <0x0000000082843920> (a java.util.Collections$UnmodifiableSet) - locked <0x0000000082841760> (a sun.nio.ch.WindowsSelectorImpl) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97) at io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:665) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:325) at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:742) at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:145) at java.lang.Thread.run(Thread.java:745) Locked ownable synchronizers: - None "nioEventLoopGroup-3-1" #18 prio=10 os_prio=2 tid=0x000000001bc45000 nid=0x4360 runnable [0x000000002141e000] java.lang.Thread.State: RUNNABLE at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method) at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll(WindowsSelectorImpl.java:296) at sun.nio.ch.WindowsSelectorImpl$SubSelector.access$400(WindowsSelectorImpl.java:278) at sun.nio.ch.WindowsSelectorImpl.doSelect(WindowsSelectorImpl.java:159) at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86) - locked <0x0000000082858678> (a io.netty.channel.nio.SelectedSelectionKeySet) - locked <0x000000008285a768> (a java.util.Collections$UnmodifiableSet) - locked <0x00000000828585a8> (a sun.nio.ch.WindowsSelectorImpl) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97) at io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:665) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:325) at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:742) at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:145) at java.lang.Thread.run(Thread.java:745) Locked ownable synchronizers: - None "nioEventLoopGroup-2-1" #17 prio=10 os_prio=2 tid=0x000000001dfe5000 nid=0x45f8 runnable [0x000000002131e000] java.lang.Thread.State: RUNNABLE at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method) at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll(WindowsSelectorImpl.java:296) at sun.nio.ch.WindowsSelectorImpl$SubSelector.access$400(WindowsSelectorImpl.java:278) at sun.nio.ch.WindowsSelectorImpl.doSelect(WindowsSelectorImpl.java:159) at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86) - locked <0x00000000827dd4f0> (a io.netty.channel.nio.SelectedSelectionKeySet) - locked <0x00000000827df5e0> (a java.util.Collections$UnmodifiableSet) - locked <0x00000000827dd410> (a sun.nio.ch.WindowsSelectorImpl) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97) at io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:665) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:325) at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:742) at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:145) at java.lang.Thread.run(Thread.java:745) Locked ownable synchronizers: - None "container-0" #15 prio=5 os_prio=0 tid=0x000000001ca6b800 nid=0x79b4 waiting on condition [0x000000002101f000] java.lang.Thread.State: TIMED_WAITING (sleeping) at java.lang.Thread.sleep(Native Method) at org.apache.catalina.core.StandardServer.await(StandardServer.java:407) at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer$1.run(TomcatEmbeddedServletContainer.java:140) Locked ownable synchronizers: - None "ContainerBackgroundProcessor[StandardEngine[Tomcat].StandardHost[localhost].StandardContext[]]" #14 daemon prio=5 os_prio=0 tid=0x000000001e13c000 nid=0x8398 waiting on condition [0x0000000020adf000] java.lang.Thread.State: TIMED_WAITING (sleeping) at java.lang.Thread.sleep(Native Method) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1344) at java.lang.Thread.run(Thread.java:745) Locked ownable synchronizers: - None "Service Thread" #9 daemon prio=9 os_prio=0 tid=0x0000000019cbd800 nid=0x1a3c runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE Locked ownable synchronizers: - None "C1 CompilerThread2" #8 daemon prio=9 os_prio=2 tid=0x0000000019c88000 nid=0x388c waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE Locked ownable synchronizers: - None "C2 CompilerThread1" #7 daemon prio=9 os_prio=2 tid=0x0000000019c81000 nid=0x34d0 waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE Locked ownable synchronizers: - None "C2 CompilerThread0" #6 daemon prio=9 os_prio=2 tid=0x0000000019c7d000 nid=0x391c waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE Locked ownable synchronizers: - None "Attach Listener" #5 daemon prio=5 os_prio=2 tid=0x000000001aff3800 nid=0x6700 waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE Locked ownable synchronizers: - None "Signal Dispatcher" #4 daemon prio=9 os_prio=2 tid=0x0000000019c73000 nid=0x2618 runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE Locked ownable synchronizers: - None "Finalizer" #3 daemon prio=8 os_prio=1 tid=0x0000000005109800 nid=0x509c in Object.wait() [0x000000001afaf000] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(Native Method) - waiting on <0x0000000081c4d618> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:142) - locked <0x0000000081c4d618> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:158) at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:209) Locked ownable synchronizers: - None "Reference Handler" #2 daemon prio=10 os_prio=2 tid=0x0000000005101800 nid=0x49a8 in Object.wait() [0x000000001aeaf000] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(Native Method) - waiting on <0x0000000081dd5a30> (a java.lang.ref.Reference$Lock) at java.lang.Object.wait(Object.java:502) at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:157) - locked <0x0000000081dd5a30> (a java.lang.ref.Reference$Lock) Locked ownable synchronizers: - None "main" #1 prio=5 os_prio=0 tid=0x0000000005014800 nid=0x50b4 in Object.wait() [0x000000000500d000] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(Native Method) - waiting on <0x0000000082802460> (a io.netty.channel.AbstractChannel$CloseFuture) at java.lang.Object.wait(Object.java:502) at io.netty.util.concurrent.DefaultPromise.await(DefaultPromise.java:251) - locked <0x0000000082802460> (a io.netty.channel.AbstractChannel$CloseFuture) at io.netty.channel.DefaultChannelPromise.await(DefaultChannelPromise.java:129) at io.netty.channel.DefaultChannelPromise.await(DefaultChannelPromise.java:28) at io.netty.util.concurrent.DefaultPromise.sync(DefaultPromise.java:351) at io.netty.channel.DefaultChannelPromise.sync(DefaultChannelPromise.java:117) at io.netty.channel.DefaultChannelPromise.sync(DefaultChannelPromise.java:28) at showandshare.netty.autoselflock.sdk.core.server.NettyServer.start(NettyServer.java:70) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1706) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1645) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1574) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) - locked <0x0000000081e3be88> (a java.util.concurrent.ConcurrentHashMap) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:839) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538) - locked <0x0000000081e5dad0> (a java.lang.Object) at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118) at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:764) at org.springframework.boot.SpringApplication.doRun(SpringApplication.java:357) at org.springframework.boot.SpringApplication.run(SpringApplication.java:305) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1124) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1113) at showandshare.netty.autoselflock.NettyAutoSelfLockApplication.main(NettyAutoSelfLockApplication.java:10) Locked ownable synchronizers: - None "VM Thread" os_prio=2 tid=0x0000000019c25000 nid=0x49b0 runnable "GC task thread#0 (ParallelGC)" os_prio=0 tid=0x000000000502b800 nid=0x6220 runnable "GC task thread#1 (ParallelGC)" os_prio=0 tid=0x000000000502d000 nid=0x1f10 runnable "GC task thread#2 (ParallelGC)" os_prio=0 tid=0x000000000502e800 nid=0x70d4 runnable "GC task thread#3 (ParallelGC)" os_prio=0 tid=0x0000000005030000 nid=0xe84 runnable "VM Periodic Task Thread" os_prio=2 tid=0x000000001b035000 nid=0x4944 waiting on condition JNI global references: 196 捐助开发者 在兴趣的驱动下,写一个免费的东西，有欣喜，也还有汗水，希望你喜欢我的作品，同时也能支持一下。 当然，有钱捧个钱场（支持支付宝和微信 以及扣扣群），没钱捧个人场，谢谢各位。 个人主页：http://knight-black-bob.iteye.com/ 谢谢您的赞助，我会做的更好！
2018-04-24
优秀的个人博客,低调大师

Cloudera(CDH) 简介和在线安装

实验背景 笔者需要维护线上的hadoop集群环境，考虑在本地搭建一套类似的hadoop集群，便于维护与管理。 Cloudera 简介 经过搜索发现Cloudera产品很适合笔者当前需求，于是开始研究Cloudera（CDH）的安装与使用，参考： Cloudera 官网：https://www.cloudera.com Cloudera 官方文档： https://www.cloudera.com/documentation/enterprise/latest.html CDH是Apache Hadoop和相关项目的最完整，经过测试的流行发行版。 CDH提供了Hadoop的核心元素 - 可扩展的存储和分布式计算 - 以及基于Web的用户界面和重要的企业功能。 CDH是Apache许可的开放源码，是唯一提供统一批处理，交互式SQL和交互式搜索以及基于角色的访问控制的Hadoop解决方案。 Cloudera作为一个强大的商业版数据中心管理工具，提供了各种能够快速稳定运行的数据计算框架，如Apache Spark；使用Apache Impala做为对HDFS，HBase的高性能SQL查询引擎；也带了Hive数据仓库工具帮助用户分析数据; 用户也能用Cloudera管理安装HBase分布式列式NoSQL数据库；Cloudera还包含了原生的Hadoop搜索引擎以及Cloudera Navigator Optimizer去对Hadoop上的计算任务进行一个可视化的协调优化，提高运行效率；同时Cloudera中提供的各种组件能让用户在一个可视化的UI界面中方便地管理，配置和监控Hadoop以及其它所有相关组件，并有一定的容错容灾处理；Cloudera作为一个广泛使用的商业版数据中心管理工具更是对数据的安全决不妥协！ CDH 提供： 灵活性 - 存储任何类型的数据，并使用各种不同的计算框架进行处理，包括批处理，交互式SQL，自由文本搜索，机器学习和统计计算。 集成 - 在一个可与广泛的硬件和软件解决方案配合使用的完整Hadoop平台上快速启动并运行。 安全 - 过程和控制敏感数据。 可扩展性 - 启用广泛的应用程序并进行扩展和扩展，以满足您的需求。 高可用性 - 充满信心地执行关键业务任务。 兼容性 - 利用您现有的IT基础设施和资源。 上述描述来自：https://www.cloudera.com/documentation/enterprise/latest/topics/cdh_intro.html Cloudera Manager 介绍 Cloudera Manager可以轻松管理任何生产规模的Hadoop部署。通过直观的用户界面快速部署，配置和监控群集 - 完成滚动升级，备份和灾难恢复以及可定制警报。 Cloudera Manager作为Cloudera Enterprise的集成和支持部分提供。 参考：https://www.cloudera.com/documentation/enterprise/latest/topics/cm_intro_primer.html#concept_wfj_tny_jk 如下所示，Cloudera Manager的核心是Cloudera Manager Server。服务器托管管理控制台Web服务器和应用程序逻辑，负责安装软件，配置，启动和停止服务以及管理运行服务的集群。 Cloudera Manager Server与其他几个组件一起工作： agent - 安装在每台主机上。代理负责启动和停止进程，解包配置，触发安装和监视主机。 管理服务 - 由一组执行各种监视，警报和报告功能的角色组成的服务。 数据库 - 存储配置和监视信息。通常，多个逻辑数据库在一个或多个数据库服务器上运行。例如，Cloudera Manager Server和监视角色使用不同的逻辑数据库。 Cloudera存储库 - 由Cloudera Manager分发的软件存储库。 客户端 - 是与服务器交互的接口： 管理控制台 - 管理员用于管理集群和Cloudera Manager的基于Web的用户界面。 API - 与开发人员创建自定义Cloudera Manager应用程序的API。 安装Cloudera Manager和CDH 系统环境：CentOS6.9软件环境：Oracle JDK、Cloudera Manager Server 和 Agent 、数据库、CDH各组件 系统初始化(每个服务器都要做） # 关闭iptables、禁用selinux /etc/init.d/iptables stop && chkconfig iptables off sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config && setenforce 0 # 每台服务器之间设置免密认证 # CM 192.168.1.137 cdh.master.aniu.so master 192.168.1.148 cdh.node1.aniu.so node1 192.168.1.149 cdh.node2.aniu.so node2 192.168.1.150 cdh.node3.aniu.so node3 ## 注：在每台服务器配置hosts，master和node1/2/3代表服务器的主机名 # 设置swap参数 echo never > /sys/kernel/mm/transparent_hugepage/defrag #建议写到开启启动新里 sysctl -w vm.swappiness=0 # 建议写进sysctl.conf # 设置ntp同步服务器时间 */2 * * * * /usr/sbin/ntpdate 0.cn.pool.ntp.org >> /dev/null 2>&1 Cloudera安装步骤参考：https://www.cloudera.com/documentation/enterprise/latest/topics/installation_installation.html 阶段1：安装JDK（忽略） [Java SE 8 Downloads](http://www.oracle.com/technetwork/java/javase/downloads/java-archive-javase8-2177648.html) export JAVA_HOME=/usr/java/jdk.1.8.0_nn # java -version java version "1.8.0_144" Java(TM) SE Runtime Environment (build 1.8.0_144-b01) Java HotSpot(TM) 64-Bit Server VM (build 25.144-b01, mixed mode) # 注 此处不用安装JDK，因为CM源有封装好的jdk， 阶段2：设置数据库 # 使用mysql数据库，提前安装好mysql # mysql -u root -ppassword -e "create database cmf DEFAULT CHARACTER SET utf8;" # mysql -u root -ppassword -e "GRANT ALL PRIVILEGES ON `cmf`.* TO 'cmf'@'localhost' IDENTIFIED BY 'cmfpassword'";" 阶段3：安装Cloudera Manager服务器 # 配置cloudera-cdh源和cloudera-manager源 # cloudera-manager wget http://archive.cloudera.com/cm5/redhat/6/x86_64/cm/cloudera-manager.repo # cloudera-cdh wget https://archive.cloudera.com/cdh5/redhat/6/x86_64/cdh/cloudera-cdh5.repo # 安装jdk和cloudera-manager sudo yum install oracle-j2sdk1.7 -y sudo yum install cloudera-manager-daemons cloudera-manager-server -y 阶段4：启动CM服务并通过浏览器访问 # /etc/init.d/cloudera-scm-server restart Stopping cloudera-scm-server: [ OK ] Starting cloudera-scm-server: [ OK ] # 查看日志是否有报错，根据报错修改，然后再重新启动 tailf /var/log/cloudera-scm-server/cloudera-scm-server.log 浏览器访问：http://192.168.1.137:7180，用户名密码：admin admin 点击搜索 创建必需的数据库 # 参考：https://www.cloudera.com/documentation/enterprise/latest/topics/install_cm_mariadb.html # hive hue amon man nas navms oos create database metastore DEFAULT CHARACTER SET utf8; grant all on metastore.* TO 'hive'@'%' IDENTIFIED BY 'Aniuhive123.'; create database amon DEFAULT CHARACTER SET utf8; grant all on amon.* TO 'amon'@'%' IDENTIFIED BY 'Aniuamon123.'; create database hue DEFAULT CHARACTER SET utf8; grant all on hue.* TO 'hue'@'%' IDENTIFIED BY 'Aniuhue123.'; create database rman DEFAULT CHARACTER SET utf8; grant all on rman.* TO 'rman'@'%' IDENTIFIED BY 'Aniurman123.'; create database navms DEFAULT CHARACTER SET utf8; grant all on navms.* TO 'navms'@'%' IDENTIFIED BY 'Aniunavms123.'; create database nas DEFAULT CHARACTER SET utf8; grant all on nas.* TO 'nas'@'%' IDENTIFIED BY 'Aniunas123.'; create database oos DEFAULT CHARACTER SET utf8; grant all on oos.* TO 'oos'@'%' IDENTIFIED BY 'Aniuoos123.'; 集群更改设置 系统自带的python不能升级，升级会导致安装CM agent出问题 注意事项 建议使用全新的服务器或者虚拟机安装CM服务，避免其他环境（服务）对安装过程造成影响 系统初始化操作一定要一致，python版本注意用系统自带即可 重要 卸载重装CM服务 # 笔者前期系统初始化部分很多操作都不完善，卸载重装CM步骤 # 安装CDH manager的服务器上面执行 yum remove cloudera-manager-server -y # 在所有的服务器执行下面操作 /etc/init.d/cloudera-scm-agent stop yum remove cloudera-manager-agennt-y find / -name clouder* | xargs rm -rf find / -name cmf* | xargs rm -rf # 把使用yum下载的相关包卸载干净。然后通过CDH manager 管理界面安装 参考链接： http://gepeiyu.com/2017/01/20/cloudera-chi-xian-an-zhuang/ http://blog.csdn.net/ymh198816/article/details/52423200
2017-12-07
优秀的个人博客,低调大师

Ceph：RBD在线扩容容量

Ceph管理端的操作： 1 2 3 4 #rbdls-popenshift openshift-storage01 #rbdresizeopenshift/openshift-storage01--size20000 Resizingimage:100%complete... done . Ceph客户端的操作： 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 #rbdshowmapped id poolimagesnapdevice 0openshiftopenshift-storage01- /dev/rbd0 #df-h 文件系统容量已用可用已用%挂载点 /dev/mapper/cl-root 179G5.7G174G4%/ devtmpfs1.9G01.9G0% /dev tmpfs1.9G316K1.9G1% /dev/shm tmpfs1.9G49M1.9G3% /run tmpfs1.9G01.9G0% /sys/fs/cgroup /dev/vda1 297M122M176M41% /boot tmpfs380M16K380M1% /run/user/42 tmpfs380M48K380M1% /run/user/0 /dev/vdb 1008G92G866G10% /mnt/backup tmpfs380M0380M0% /run/user/1001 /dev/rbd0 10G2.0G8.1G20% /cephmount #xfs_growfs-d/cephmount/ meta-data= /dev/rbd0 isize=512agcount=17,agsize=162816blks =sectsz=512attr=2,projid32bit=1 =crc=1finobt=0spinodes=0 data=bsize=4096blocks=2621440,imaxpct=25 =sunit=1024swidth=1024blks naming=version2bsize=4096ascii-ci=0ftype=1 log=internalbsize=4096blocks=2560,version=2 =sectsz=512sunit=8blks,lazy-count=1 realtime=noneextsz=4096blocks=0,rtextents=0 datablockschangedfrom2621440to5120000 说明：容量已经扩展了 #cephdf GLOBAL: SIZEAVAILRAWUSED%RAWUSED 224G212G12736M5.53 POOLS: NAMEIDUSED%USEDMAXAVAILOBJECTS rbd0422068433M7 openstack12159M3.0668433M554 cloudstack- test 2194068433M6 test 30068433M0 openshift42014M2.8668433M539 本文转自 冰冻vs西瓜 51CTO博客，原文链接：http://blog.51cto.com/molewan/2063761，如需转载请自行联系原作者
2017-11-14

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Nacos

Nacos

Nacos /nɑ:kəʊs/ 是 Dynamic Naming and Configuration Service 的首字母简称，一个易于构建 AI Agent 应用的动态服务发现、配置管理和AI智能体管理平台。Nacos 致力于帮助您发现、配置和管理微服务及AI智能体应用。Nacos 提供了一组简单易用的特性集，帮助您快速实现动态服务发现、服务配置、服务元数据、流量管理。Nacos 帮助您更敏捷和容易地构建、交付和管理微服务平台。

时间: 2026-08-21 大小: 189MB 下载: 7次
Spring

Spring

Spring框架（Spring Framework）是由Rod Johnson于2002年提出的开源Java企业级应用框架，旨在通过使用JavaBean替代传统EJB实现方式降低企业级编程开发的复杂性。该框架基于简单性、可测试性和松耦合性设计理念，提供核心容器、应用上下文、数据访问集成等模块，支持整合Hibernate、Struts等第三方框架，其适用范围不仅限于服务器端开发，绝大多数Java应用均可从中受益。

时间: 2026-08-21 大小: 5MB 下载: 2次
Rocky Linux

Rocky Linux

Rocky Linux（中文名：洛基）是由Gregory Kurtzer于2020年12月发起的企业级Linux发行版，作为CentOS稳定版停止维护后与RHEL（Red Hat Enterprise Linux）完全兼容的开源替代方案，由社区拥有并管理，支持x86_64、aarch64等架构。其通过重新编译RHEL源代码提供长期稳定性，采用模块化包装和SELinux安全架构，默认包含GNOME桌面环境及XFS文件系统，支持十年生命周期更新。

时间: 2026-08-21 大小: 1.42GB 下载: 6次
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DeepSeek Jdk25 OpenAi HarmonyOS6 Nacos3 SpringBoot4 SpringCloud Docker Kubernetes Service Mesh Redis Gemini3 Rocky

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