Address xx maps to localhost

最新推荐文章于 2020-04-28 20:17:32 发布
最新推荐文章于 2020-04-28 20:17:32 发布 · 98 阅读 · 0
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#运维

本文介绍了一种常见的SSH远程连接问题：尝试连接时提示可能的非法登录尝试。通过编辑本地SSH客户端配置文件/etc/ssh/ssh_config，并将GSSAPIAuthentication设置为no，可以解决这一问题。

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ssh 远程连接时出现

Address 192.168.1.103 maps to localhost, but this does not map back to the address - POSSIBLE BREAK-IN ATTEMPT!

编辑本地ssh 客户端文件 /etc/ssh/ssh_config

将GSSAPIAuthentication 设置成no 即可

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从hdfs到mysql报错Warning: /usr/local/sqoop/../hcatalog does not exist! HCatalog jobs will fail. Please set $HCAT_HOME to the root of your HCatalog installation. Warning: /usr/local/sqoop/../accumulo does not exist! Accumulo imports will fail. Please set $ACCUMULO_HOME to the root of your Accumulo installation. Warning: /usr/local/sqoop/../zookeeper does not exist! Accumulo imports will fail. Please set $ZOOKEEPER_HOME to the root of your Zookeeper installation. 错误: 找不到或无法加载主类 org.apache.hadoop.hbase.util.GetJavaProperty 2025-06-05 17:41:55,556 INFO sqoop.Sqoop: Running Sqoop version: 1.4.6 2025-06-05 17:41:55,583 WARN tool.BaseSqoopTool: Setting your password on the command-line is insecure. Consider using -P instead. 2025-06-05 17:41:55,664 INFO manager.MySQLManager: Preparing to use a MySQL streaming resultset. 2025-06-05 17:41:55,664 INFO tool.CodeGenTool: Using existing jar: /tmp/sqoop-hadoop/compile/8b77c7c2bee6c4dd7f3856618f5f8556/user_action.jar 2025-06-05 17:41:55,668 INFO mapreduce.ExportJobBase: Beginning export of user_action 2025-06-05 17:41:55,668 INFO Configuration.deprecation: mapred.job.tracker is deprecated. Instead, use mapreduce.jobtracker.address 2025-06-05 17:41:55,827 INFO Configuration.deprecation: mapred.jar is deprecated. Instead, use mapreduce.job.jar 2025-06-05 17:41:56,366 INFO sasl.SaslDataTransferClient: SASL encryption trust check: localHostTrusted = false, remoteHostTrusted = false Thu Jun 05 17:41:56 CST 2025 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification. 2025-06-05 17:41:56,900 INFO Configuration.deprecation: mapred.reduce.tasks.speculative.execution is deprecated. Instead, use mapreduce.reduce.speculative 2025-06-05 17:41:56,902 INFO Configuration.deprecation: mapred.map.tasks.speculative.execution is deprecated. Instead, use mapreduce.map.speculative 2025-06-05 17:41:56,904 INFO Configuration.deprecation: mapred.map.tasks is deprecated. Instead, use mapreduce.job.maps 2025-06-05 17:41:56,967 INFO impl.MetricsConfig: loaded properties from hadoop-metrics2.properties 2025-06-05 17:41:57,035 INFO impl.MetricsSystemImpl: Scheduled Metric snapshot period at 10 second(s). 2025-06-05 17:41:57,035 INFO impl.MetricsSystemImpl: JobTracker metrics system started 2025-06-05 17:41:57,104 INFO input.FileInputFormat: Total input files to process : 1 2025-06-05 17:41:57,111 INFO input.FileInputFormat: Total input files to process : 1 2025-06-05 17:41:57,139 INFO mapreduce.JobSubmitter: number of splits:4 2025-06-05 17:41:57,159 INFO Configuration.deprecation: mapred.map.tasks.speculative.execution is deprecated. Instead, use mapreduce.map.speculative 2025-06-05 17:41:57,236 INFO mapreduce.JobSubmitter: Submitting tokens for job: job_local1705881514_0001 2025-06-05 17:41:57,236 INFO mapreduce.JobSubmitter: Executing with tokens: [] 2025-06-05 17:41:57,374 INFO mapred.LocalDistributedCacheManager: Creating symlink: /usr/local/hadoop/tmp/mapred/local/1749116517294/libjars <- /usr/local/sqoop/libjars/* 2025-06-05 17:41:57,376 INFO mapred.LocalDistributedCacheManager: Localized file:/tmp/hadoop/mapred/staging/hadoop1705881514/.staging/job_local1705881514_0001/libjars as file:/usr/local/hadoop/tmp/mapred/local/1749116517294/libjars 2025-06-05 17:41:57,408 INFO mapreduce.Job: The url to track the job: http://localhost:8080/ 2025-06-05 17:41:57,409 INFO mapreduce.Job: Running job: job_local1705881514_0001 2025-06-05 17:41:57,413 INFO mapred.LocalJobRunner: OutputCommitter set in config null 2025-06-05 17:41:57,416 INFO mapred.LocalJobRunner: OutputCommitter is org.apache.sqoop.mapreduce.NullOutputCommitter 2025-06-05 17:41:57,455 INFO mapred.LocalJobRunner: Waiting for map tasks 2025-06-05 17:41:57,456 INFO mapred.LocalJobRunner: Starting task: attempt_local1705881514_0001_m_000000_0 2025-06-05 17:41:57,492 INFO mapred.Task: Using ResourceCalculatorProcessTree : [ ] 2025-06-05 17:41:57,499 INFO mapred.MapTask: Processing split: Paths:/user/hive/warehouse/dblab.db/user_action/000000_0:11692413+1948736,/user/hive/warehouse/dblab.db/user_action/000000_0:13641149+1948737 2025-06-05 17:41:57,507 INFO Configuration.deprecation: map.input.file is deprecated. Instead, use mapreduce.map.input.file 2025-06-05 17:41:57,507 INFO Configuration.deprecation: map.input.start is deprecated. Instead, use mapreduce.map.input.start 2025-06-05 17:41:57,507 INFO Configuration.deprecation: map.input.length is deprecated. Instead, use mapreduce.map.input.length 2025-06-05 17:41:57,515 INFO sasl.SaslDataTransferClient: SASL encryption trust check: localHostTrusted = false, remoteHostTrusted = false Thu Jun 05 17:41:57 CST 2025 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification. 2025-06-05 17:41:57,543 INFO sasl.SaslDataTransferClient: SASL encryption trust check: localHostTrusted = false, remoteHostTrusted = false 2025-06-05 17:41:57,548 INFO mapreduce.AutoProgressMapper: Auto-progress thread is finished. keepGoing=false 2025-06-05 17:41:57,551 INFO mapred.LocalJobRunner: Starting task: attempt_local1705881514_0001_m_000001_0 2025-06-05 17:41:57,552 INFO mapred.Task: Using ResourceCalculatorProcessTree : [ ] 2025-06-05 17:41:57,553 INFO mapred.MapTask: Processing split: Paths:/user/hive/warehouse/dblab.db/user_action/000000_0:0+3897471 2025-06-05 17:41:57,562 INFO sasl.SaslDataTransferClient: SASL encryption trust check: localHostTrusted = false, remoteHostTrusted = false Thu Jun 05 17:41:57 CST 2025 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification. 2025-06-05 17:41:57,574 INFO mapreduce.AutoProgressMapper: Auto-progress thread is finished. keepGoing=false 2025-06-05 17:41:57,577 INFO mapred.LocalJobRunner: Starting task: attempt_local1705881514_0001_m_000002_0 2025-06-05 17:41:57,578 INFO mapred.Task: Using ResourceCalculatorProcessTree : [ ] 2025-06-05 17:41:57,579 INFO mapred.MapTask: Processing split: Paths:/user/hive/warehouse/dblab.db/user_action/000000_0:3897471+3897471 2025-06-05 17:41:57,583 INFO sasl.SaslDataTransferClient: SASL encryption trust check: localHostTrusted = false, remoteHostTrusted = false Thu Jun 05 17:41:57 CST 2025 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification. 2025-06-05 17:41:57,603 INFO sasl.SaslDataTransferClient: SASL encryption trust check: localHostTrusted = false, remoteHostTrusted = false 2025-06-05 17:41:57,607 INFO mapreduce.AutoProgressMapper: Auto-progress thread is finished. keepGoing=false 2025-06-05 17:41:57,614 INFO mapred.LocalJobRunner: Starting task: attempt_local1705881514_0001_m_000003_0 2025-06-05 17:41:57,616 INFO mapred.Task: Using ResourceCalculatorProcessTree : [ ] 2025-06-05 17:41:57,617 INFO mapred.MapTask: Processing split: Paths:/user/hive/warehouse/dblab.db/user_action/000000_0:7794942+3897471 2025-06-05 17:41:57,623 INFO sasl.SaslDataTransferClient: SASL encryption trust check: localHostTrusted = false, remoteHostTrusted = false Thu Jun 05 17:41:57 CST 2025 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification. 2025-06-05 17:41:57,638 INFO sasl.SaslDataTransferClient: SASL encryption trust check: localHostTrusted = false, remoteHostTrusted = false 2025-06-05 17:41:57,640 INFO mapreduce.AutoProgressMapper: Auto-progress thread is finished. keepGoing=false 2025-06-05 17:41:57,641 INFO mapred.LocalJobRunner: map task executor complete. 2025-06-05 17:41:57,642 WARN mapred.LocalJobRunner: job_local1705881514_0001 java.lang.Exception: java.io.IOException: java.lang.ClassNotFoundException: user_action at org.apache.hadoop.mapred.LocalJobRunner$Job.runTasks(LocalJobRunner.java:492) at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:552) Caused by: java.io.IOException: java.lang.ClassNotFoundException: user_action at org.apache.sqoop.mapreduce.TextExportMapper.setup(TextExportMapper.java:70) at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:143) at org.apache.sqoop.mapreduce.AutoProgressMapper.run(AutoProgressMapper.java:64) at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:799) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:347) at org.apache.hadoop.mapred.LocalJobRunner$Job$MapTaskRunnable.run(LocalJobRunner.java:271) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Caused by: java.lang.ClassNotFoundException: user_action at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:338) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:348) at org.apache.sqoop.mapreduce.TextExportMapper.setup(TextExportMapper.java:66) ... 10 more 2025-06-05 17:41:58,413 INFO mapreduce.Job: Job job_local1705881514_0001 running in uber mode : false 2025-06-05 17:41:58,414 INFO mapreduce.Job: map 0% reduce 0% 2025-06-05 17:41:58,416 INFO mapreduce.Job: Job job_local1705881514_0001 failed with state FAILED due to: NA 2025-06-05 17:41:58,422 INFO mapreduce.Job: Counters: 0 2025-06-05 17:41:58,432 WARN mapreduce.Counters: Group FileSystemCounters is deprecated. Use org.apache.hadoop.mapreduce.FileSystemCounter instead 2025-06-05 17:41:58,434 INFO mapreduce.ExportJobBase: Transferred 0 bytes in 1.5124 seconds (0 bytes/sec) 2025-06-05 17:41:58,436 WARN mapreduce.Counters: Group org.apache.hadoop.mapred.Task$Counter is deprecated. Use org.apache.hadoop.mapreduce.TaskCounter instead 2025-06-05 17:41:58,436 INFO mapreduce.ExportJobBase: Exported 0 records. 2025-06-05 17:41:58,437 ERROR tool.ExportTool: Error during export: Export job failed!
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