2. 退出安全模式后,删除损坏的块文件,然后重启hdfs服务。 注: 不论hdfs是否采用journal ha模式。hdfs进入安全模式后,hbase无法启动,会一直打印等待dfs退出安全模式(“Waiting for dfs to exit safe mode...”),此时也不可以使用hbck工具修复hbase,否则会打印获取不到Master错误( client.HConnectionManager$HConnecti...
Example Application Development for Interconnecting HDFS with OBS How Do I Connect an MRS Cluster Client to OBS Using an AK/SK Pair? How Do I Access OBS Using an MRS Client Installed Outside a Cluster? Accessing an MRS Cluster's Manager (Version 2.x or Earlier) How Do I Handle Abnormal...
Here I create a file /tmp/deleteme.txt, upload it to HDFS, list it parent directory, and delete the file. [hdfs@jyoung-hdp234-1 ~]$ echo "delete me" >> /tmp/deleteme.txt [hdfs@jyoung-hdp234-1 ~]$ hdfs dfs -put /tmp/deleteme.txt /tmp/ [hdfs@jyoung-hdp234-1 ~]$ hdfs...
Backup of important data: As this process can result in data loss stored in HDFS (Hadoop Distributed File System), you need to back up all important files. To do that, transfer or copy data from HDFS to a local or external storage system. You can use HDFS commands such as:hdfs...
3. Save the file and close nano. The file's location is required for the following step. Step 2: Import File to HDFS To use the file in Hive, import it into HDFS. Follow the steps below: 1. Start all Hadoop services (HDFS and Yarn). Run the followingscript: ...
After the cache manager finally does remove the bucket from the indexer's local storage, the indexer still retains metadata information for that bucket in the index's .bucketManifest file. In addition, the indexer retains an empty directory for the bucket. In the case of an indexer cluster,...
xargs -I {} hadoop fs -rm {}: This part of the command reads the file paths provided by awk and deletes those files using hadoop fs -rm To remove all files older than 10 days in a folder: hadoop fs -ls <folder_path> | awk -v cutoff=$(date -d "10 days ago" +...
[How to]HBase集群备份方法 1.简介 当HBase数据库中存在非常重要的业务数据的时候为了保护数据的可以对数据进行备份处理。对于HBase来说从备份操作来看可分为离线备份和在线备份。 2. 前准备 在测试环境上准备有哦两套HBase集群,资源有限原因他们共享一个hdfs集群和zookeeper,通过配置不同node路径和数据路径来区别...
Describe the problem you faced Seeing lot of Messages in the Spark Log File for Every Parquet file the Spark job is Writing to S3 with Hudi Configuration We are currently on Hudi 0.11.0 and we don't see these log Messages until we enable...
click the button in the file management on the left side of the interface to mount Google Drive to the runtime. Then, save the data that needs to be retained or reused for a long time in it. It can be loaded from Google Drive when used again. This avoids data loss when the runtime...