2017-08-16 11:57:28,237 WARN [org.apache.hadoop.hdfs.LeaseRenewer][458] - <Failed to renew lease for [DFSClient_NONMAPREDUCE_-1756242047_26] for 30 seconds. Will retry shortly ...> org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.ipc.StandbyE
原文链接:http://aadrake.com/command-line-tools-can-be-235x-faster-than-your-hadoop-cluster.html Introduction As I was browsing the web and catching up on some sites I visit periodically, I found a cool article from Tom Haydenabout using Amazon Elastic Ma
报错信息: Error connecting to database: (using class oracle.jdbc.driver.OracleDriver) Listener refused the connection with the following error: ORA-12505, TNS:listener does not currently know of SID given in connect descriptor 解决方法: (DESCRIPTION = (ADDRE