不多说,直接上干货! 问题详情 问题排查 spark@master:~/app/hadoop$ sbin/start-all.sh This script is Deprecated. Instead use start-dfs.sh and start-yarn.sh Starting namenodes on [master] master: starting namenode, logging to /home/spark/app/hadoop-/logs/hadoop-spark-nam…
错误: java.io.IOException: Failed to replace a bad datanode on the existing pipeline due to no more good datanodes being available to try 原因: 无法写入:我的环境中有3个datanode,备份数量设置的是3.在写操作时,它会在pipeline中写3个机器.默认replace-datanode-on-failure.policy是DEFAULT,如果系统中的dat…
今日调用一post方式提交的http接口,此接口在测试环境ip调用时无问题,但在生产环境通过域名调用时一直报如下错误: java.io.IOException: Server returned HTTP response code: 411 for URL 百度之后得到:在调用时,添加如下两行代码即可,今行文以记之: /*解决411*/ httpConnection.setRequestProperty("Content-Length","0"); DataOutp…