The log showed 2011-04-07 08:50:17,584 WARN LeaseChecker DFSClient - Problem renewing lease for DFSClient_-252461351 org.apache.hadoop.ipc.RemoteException: org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot renew lease for DFSClient_-252461351. Name node is in safe mode. The reported blocks 31049 needs additional 3088 blocks to reach the threshold 0.9990 of total blocks 34172. Safe mode will be turned off automatically. And the chukwa collector crashed.
Is this problem caused by hadoop or chukwa ? -- Best regards, Ivy Tang
