当遇到“namenode is still loading”的情况时,这通常意味着Hadoop的NameNode节点仍在加载其元数据,可能由于多种原因导致加载过程变慢或停滞。为了解决这个问题,你可以按照以下步骤进行排查和处理: 检查Hadoop集群状态: 使用Hadoop提供的命令行工具来检查集群状态。例如,你可以运行hdfs dfsadmin -report来查看集群的整体...
环境:apache hadoop 2.7.2 、机器发生重启,集群异常关闭 现象:重启hdfs和yarn服务,底层namenode和datanode都没有报错,但是在namenode的web ui上报错 198.3.100.21:50070 NameNode is still loading. Redirecting to the Startup Progress page 在一篇博客中有一个人这样评论: 这种一般发生在一个namenode挂掉之后,隔...
集群启动正常,日志没有报错,但是http://192.168.11.81:50070/一直提示“NameNode is still loading. Redirecting to the Startup Progress page.” 有人说是“hadoop刚刚启动时,会进入安全模式进行自检,自检完毕就好了”,但是通过命令hdfs dfsadmin -safemode get查看,集群并不在安全模式下。 代码语言:javascript 代码...
解决Loading class `com.mysql.jdbc.Driver'. This is deprecated. The new driver class is `com.mysql.cj.jdbc.Driver'. 2019-12-23 10:03 −解决:Loading class `com.mysql.jdbc.Driver'. This is deprecated. The new driver class is `com.mysql.cj.jdbc.Driver'. 异常: Loading class `com.mysq...
(716)) - Encountered exception loading fsimage java.io.FileNotFoundException: /hadoop/hdfs/namenode/current/VERSION (Permission denied) at java.io.RandomAccessFile.open0(Native Method) at java.io.RandomAccessFile.open(RandomAccessFile.java:316) at java.io.RandomAccessFile.<init>(RandomAccess...
hadoop提示“NameNode is still loading. Redicting to the Startup Progress page” 解决方法: 刷新浏览器缓存,问题解决。 系统在进行安全自检,运行hdfs dfsadmin -safemode get
2024-02-02 08:47:12,238 WARN namenode.FSNamesystem (FSNamesystem.java:loadFromDisk(726)) - Encountered exception loading fsimagejava.io.IOException: Failed to load FSImage file, see error(s) above for more info. we can see from above exception - `Failed to load image from FSImageFile`...
hadoop.hdfs.server.namenode.FSEditLog: Starting log segment at 372 2019-03-21 16:03:26,636 INFO org.apache.hadoop.hdfs.server.namenode.NameCache: initialized with 0 entries 0 lookups 2019-03-21 16:03:26,636 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Finished loading ...
WRITE); waitForLoadingFSImage(); writeLock(); try { checkOperation(OperationCategory.WRITE); // Run the full analysis again, since things could have changed // while chooseTarget() was executing. LocatedBlock[] onRetryBlock = new LocatedBlock[1]; //分析当前Block分配请求类型 FileState file...
prog.endPhase(Phase.LOADING_EDITS); return lastAppliedTxId - prevLastAppliedTxId; } /** * Load an edit log, and apply the changes to the in-memory structure * This is where we apply edits that we've been writing to disk all * along. ...