2015-05-27 19:00:27,603 | INFO | IPC Server handler 44 on 25000 | BLOCK* checkFileProgress: blk_1099105501_25370893{blockUCState=COMMITTED, primaryNodeIndex=-1, replicas=[ReplicaUnderConstruction[[DISK]DS-ef5fd3c9-5088-4813-ae9a-34a0714ec3a3:NORMAL|RBW], ReplicaUnderConstruction[[DISK]DS-...
1. 修改dfs.safemode.threshold.pct为一个比较小的值,缺省是0.999。 2. hadoop dfsadmin -safemode leave命令强制离开 http://bbs.hadoopor.com/viewthread.php?tid=61&extra=page%3D1 --- Safe mode is exited when the minimal replication condition is reached, plus an extension time of 30 seconds. T...
Hadoop 中每个块默认的最小副本数为 1,由 dfs.namenode.replication.min 参数控制。 dfs.namenode.safemode.threshold-pct 参数的意思是指定应有多少比例的数据块满足最小副本数的要求。这个值小于、等于0表示无须等待就可以退出安全模式;而如果这个值大于 1 表示永远处于安全模式。如果设为 1 则 HDFS 永远是处于...
* The actual block replication is not expected to be performed during * this method call. The blocks will be populated or removed in the * background as the result of the routine block maintenance procedures. * *@paramsrc file name *@paramreplication new replication * *@returntrue if succes...
HDFS客户端写文件close失败,客户端提示数据块没有足够副本数。客户端日志:HDFS客户端开始写Block。例如:HDFS客户端是在2015-05-27 18:50:24,232开始写/20150527/10/6_20150527105000_20150527105500_SR5S14_1432723806338_128_11.pkg
the minimal replication requirement defined by dfs.namenode.replication.min. Values less than or equal to 0 mean not to wait for any particular percentage of blocks before exiting safemode. Values greater than 1 will make safe mode permanent. ...
1 Minimal block replication. 最小块副本数。在上传文件时,达到最小副本数,就认为上传是成功的 dfs.blocksize 134217728 The default block size for new files, in bytes. You can use the following suffix (case insensitive): k(kilo), m(mega), g(giga), t(tera), p(peta), e(exa) to specify...
* Decrement number of blocks that reached minimal replication. */ voiddecrementSafeBlockCount(Blockb){ if(safeMode==null)// mostly true return; safeMode.decrementSafeBlockCount((short)countNodes(b).liveReplicas()); } 代码示例来源:origin: com.facebook.hadoop/hadoop-core ...
* Set replication for an existing file. * * The NameNode sets replication to the new value and returns. * The actual block replication is not expected to be performed during * this method call. The blocks will be populated or removed in the * back...
“maintenanceExpireTimeInMS” is the maintenance expiry time and when reached,the corresponding DataNodes’ internal state reverts toNORMALin the NameNode, which may cause replication because the maintenance minimum would no longer be in effect.This maintenance expiry time configuration is DataNode-specif...