> 09/08/31 18:26:09 WARN hdfs.DFSClient: Error Recovery for block blk_7193173823538206978_1001bad datanode[2] nodes == null> 09/08/31 18:26:09 WARN hdfs.DFSClient: Could not get block locations. Source file "/user/umer/8GB_input"- Aborting...> put: Bad connect ack with firstBadLin...
错误: 10/12/08 20:10:31 INFO hdfs.DFSClient: Could not obtain block blk_XXXXXXXXXXXXXXXXXXXXXX_YYYYYYYY from any node: java.io.IOException: No live nodes contain current block. Will get new block locations from namenode and retry 原因: Datanode 有一个同时处理文件的上限. 这个参数叫 xcieve...
distcp 从 hdfs 到 s3a 报错: Could not find any valid local directory for s3ablock-xxxx 解决方法 在cmd 中通过 jvm 属性注入 hadoop distcp -Dfs.s3a.buffer.dir=/xxx hdfsxxx s3a://xxx/ooo 1. 直接配置到 hdfs core-site.xml 文件 fs.s3a.buffer.dir defualt: ${hadoop.tmp.dir}/s3a desc...
lastBlockBeingWrittenLength = fetchLocatedBlocksAndGetLastBlockLength(); } else { break; } retriesForLastBlockLength--; } if (retriesForLastBlockLength == 0) { throw new IOException("Could not obtain the last block locations."); } } } 对应流程图步骤二的getBlockLocations方法,详情请看fetchLoc...
09/01/19 17:32:43 INFO dfs.DFSClient: org.apache.hadoop.ipc.RemoteException: java.io.IOException: File /user/hadoop/input/1.test could only be replicated to 0 nodes, instead of 1 at org.apache.hadoop.dfs.FSNamesystem.getAdditionalBlock(FSNamesystem.java:1120) ...
12/04/19 12:25:05 INFO hdfs.DFSClient: Could not obtain block blk_9063348294419704403_1006 from any node: java.io.IOException: No live nodes contain current block. Will get new block locations from namenode and retry... [lzh@localhost ~]$ hadoop fsck /user/lzh ...
FAQ - BlockMissingException: Could not obtain block:BP-xxx FAQ - BlockMissingException: Could not obtain block:BP-xxx 问题描述/异常栈 BlockMissingException: Could not obtain block:BP-xxx 解决方案 一般出现此类错误时,数据恢复难度较大,建议通过重新调度任务进行数据恢复; hdfs fsck -delete 文件名 ...
Will get new block locations from namenode and retry...2018-04-02 17:30:28,449 WARN [org.apache.hadoop.hdfs.DFSClient] - DFS chooseDataNode: got # 3 IOException, will wait for 10197.781860707933 msec.2018-04-02 17:30:38,656 WARN [org.apache.hadoop.hdfs.DFSClient] - Could not obtain...
Once the block locations are determined, the client opens a direct connection to each DataNode andstreamsthe data from the DataNode to the client process,which is done whenthe HDFS clientinvokes the read operation on the data block. Hence, the block doesn't have to be transferred in its enti...
mapper个数的设置:跟input file 有关系,也跟filesplits有关系,filesplits的上线为dfs.block.size,下线可以通过mapred.min.split.size设置,最后还是由InputFormat决定。 较好的建议: The right number of reduces seems to be 0.95 or 1.75 multiplied by (<no. of nodes> * mapred.tasktracker.reduce.tasks....