報錯背景：

CDH斷電後重啟失敗，解決了種種錯誤之後，重啟成功，但是重啟之後的伺服器沒有任何程序，

檢視/opt/cm-5.15.1/log/cloudera-scm-server/cloudera-scm-server.log日誌，我來到了這個錯誤面前。

報錯現象：

檢視報錯日誌：

tail -n 200 /opt/cm-5.15.1/log/cloudera-scm-server/cloudera-scm-server.log

2019-04-29 14:44:31,620 INFO WebServerImpl:com.cloudera.server.web.kaiser.components.HealthAdviceManager: Registering 2 CSD bas
2019-04-29 14:44:34,496 INFO WebServerImpl:org.springframework.web.servlet.handler.SimpleUrlHandlerMapping: Root mapping to hanParameterizableViewController]
2019-04-29 14:44:34,569 INFO WebServerImpl:org.springframework.web.servlet.DispatcherServlet: FrameworkServlet 'Spring MVC Disp
2019-04-29 14:44:34,597 INFO WebServerImpl:com.cloudera.server.web.cmon.JobDetailGatekeeper: ActivityMonitor configured to allo
2019-04-29 14:44:36,045 INFO WebServerImpl:com.cloudera.server.web.cmf.AggregatorController: AggregateSummaryScheduler started.
2019-04-29 14:44:36,756 INFO SearchRepositoryManager-0:com.cloudera.server.web.cmf.search.components.SearchRepositoryManager: I6Z
2019-04-29 14:44:36,870 INFO SearchRepositoryManager-0:com.cloudera.server.web.cmf.search.components.SearchRepositoryManager: G
2019-04-29 14:44:38,001 INFO SearchRepositoryManager-0:com.cloudera.server.web.cmf.search.components.SearchRepositoryManager: N
2019-04-29 14:44:38,001 INFO SearchRepositoryManager-0:com.cloudera.server.web.cmf.search.components.SearchRepositoryManager: G
2019-04-29 14:44:38,023 INFO SearchRepositoryManager-0:com.cloudera.server.web.cmf.search.components.SearchRepositoryManager: N
2019-04-29 14:44:38,024 INFO SearchRepositoryManager-0:com.cloudera.server.web.cmf.search.components.SearchRepositoryManager: C
2019-04-29 14:44:38,043 INFO WebServerImpl:org.mortbay.log: jetty-6.1.26.cloudera.4
2019-04-29 14:44:38,044 INFO WebServerImpl:org.mortbay.log: Started [email protected]:7180
2019-04-29 14:44:38,045 INFO WebServerImpl:com.cloudera.server.cmf.WebServerImpl: Started Jetty server.
2019-04-29 14:44:38,238 INFO SearchRepositoryManager-0:com.cloudera.server.web.cmf.search.components.SearchRepositoryManager: F
2019-04-29 14:44:41,805 INFO ScmActive-0:com.cloudera.server.cmf.components.ScmActive: ScmActive completed successfully.
2019-04-29 14:44:47,224 ERROR ParcelUpdateService:com.cloudera.parcel.components.ParcelDownloaderImpl: Unable to retrieve remot
java.util.concurrent.ExecutionException: java.net.ConnectException: https://archive.cloudera.com/cdh5/parcels/5.15/manifest.jso
    at com.ning.http.client.providers.netty.NettyResponseFuture.abort(NettyResponseFuture.java:297)
    at com.ning.http.client.providers.netty.NettyConnectListener.operationComplete(NettyConnectListener.java:104)
    at org.jboss.netty.channel.DefaultChannelFuture.notifyListener(DefaultChannelFuture.java:399)
    at org.jboss.netty.channel.DefaultChannelFuture.addListener(DefaultChannelFuture.java:145)
    at com.ning.http.client.providers.netty.NettyAsyncHttpProvider.doConnect(NettyAsyncHttpProvider.java:1041)
    at com.ning.http.client.providers.netty.NettyAsyncHttpProvider.execute(NettyAsyncHttpProvider.java:858)
    at com.ning.http.client.AsyncHttpClient.executeRequest(AsyncHttpClient.java:512)
    at com.ning.http.client.AsyncHttpClient$BoundRequestBuilder.execute(AsyncHttpClient.java:234)
    at com.cloudera.parcel.components.ParcelDownloaderImpl.getRepositoryInfoFuture(ParcelDownloaderImpl.java:590)
    at com.cloudera.parcel.components.ParcelDownloaderImpl.getRepositoryInfo(ParcelDownloaderImpl.java:543)
    at com.cloudera.parcel.components.ParcelDownloaderImpl.syncRemoteRepos(ParcelDownloaderImpl.java:357)
    at com.cloudera.parcel.components.ParcelDownloaderImpl$1.run(ParcelDownloaderImpl.java:464)
    at com.cloudera.parcel.components.ParcelDownloaderImpl$1.run(ParcelDownloaderImpl.java:459)
    at com.cloudera.cmf.persist.ReadWriteDatabaseTaskCallable.call(ReadWriteDatabaseTaskCallable.java:36)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
Caused by: java.net.ConnectException: https://archive.cloudera.com/cdh5/parcels/5.15/manifest.json
    at com.ning.http.client.providers.netty.NettyConnectListener.operationComplete(NettyConnectListener.java:100)
    ... 16 more
Caused by: java.nio.channels.UnresolvedAddressException
    at sun.nio.ch.Net.checkAddress(Net.java:101)
    at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:622)
    at org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink.connect(NioClientSocketPipelineSink.java:139)
    at org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink.eventSunk(NioClientSocketPipelineSink.java:102)
    at org.jboss.netty.handler.ssl.SslHandler.handleDownstream(SslHandler.java:467)
    at org.jboss.netty.handler.codec.oneone.OneToOneEncoder.handleDownstream(OneToOneEncoder.java:55)
    at org.jboss.netty.handler.codec.http.HttpClientCodec.handleDownstream(HttpClientCodec.java:97)
    at org.jboss.netty.handler.stream.ChunkedWriteHandler.handleDownstream(ChunkedWriteHandler.java:108)
    at org.jboss.netty.channel.Channels.connect(Channels.java:642)
    at org.jboss.netty.channel.AbstractChannel.connect(AbstractChannel.java:204)
    at org.jboss.netty.bootstrap.ClientBootstrap.connect(ClientBootstrap.java:230)
    at org.jboss.netty.bootstrap.ClientBootstrap.connect(ClientBootstrap.java:183)
    at com.ning.http.client.providers.netty.NettyAsyncHttpProvider.doConnect(NettyAsyncHttpProvider.java:999)
    ... 13 more

報錯原因：

根據日誌裡面的資訊，我們可以看出，這個問題肯定和manifest.json這個檔案有關係。

這時，我想起來這個檔案是CDH一開始安裝的時候用到的三個檔案之一，後來安裝kafka的時候，這個檔案被替換了。

CDH-5.15.1-1.cdh5.15.1.p0.4-el7.parcel

CDH-5.15.1-1.cdh5.15.1.p0.4-el7.parcel.sha1

manifest.json

報錯解決：

我找到這個目錄：/opt/cloudera/parcel-repo/

把以前備份的manifest.json檔案放進上面的目錄

重啟cloudera-scm-server，報錯解決。