Updated on 2023-11-30 GMT+08:00
Using HDFS
- HDFS NameNode Instances Become Standby After the RPC Port Is Changed
- An Error Is Reported When the HDFS Client Is Connected Through a Public IP Address
- Failed to Use Python to Remotely Connect to the Port of HDFS
- HDFS Capacity Reaches 100%, Causing Unavailable Upper-Layer Services Such as HBase and Spark
- Error Message "Permission denied" Is Displayed When HDFS and Yarn Are Started
- HDFS Users Can Create or Delete Files in Directories of Other Users
- A DataNode of HDFS Is Always in the Decommissioning State
- HDFS NameNode Failed to Start Due to Insufficient Memory
- A Large Number of Blocks Are Lost in HDFS due to the Time Change Using ntpdate
- CPU Usage of DataNodes Is Close to 100% Occasionally, Causing Node Loss
- Manually Performing Checkpoints When a NameNode Is Faulty for a Long Time
- Error "Failed to place enough replicas" Is Reported When HDFS Reads or Writes Files
- Maximum Number of File Handles Is Set to a Too Small Value, Causing File Reading and Writing Exceptions
- HDFS Client File Fails to Be Closed After Data Writing
- File Fails to Be Uploaded to HDFS Due to File Errors
- After dfs.blocksize Is Configured on the UI and Data Is Uploaded, the Block Size Does Not Change
- HDFS File Fails to Be Read, and Error Message "FileNotFoundException" Is Displayed
- Failed to Write Files to HDFS, and Error Message "item limit of xxx is exceeded" Is Displayed
- Adjusting the Log Level of the HDFS SHDFShell Client
- HDFS File Read Fails, and Error Message "No common protection layer" Is Displayed
- Failed to Write Files Because the HDFS Directory Quota Is Insufficient
- Balancing Fails, and Error Message "Source and target differ in block-size" Is Displayed
- Failed to Query or Delete HDFS Files
- Uneven Data Distribution Due to Non-HDFS Data Residuals
- Uneven Data Distribution Due to HDFS Client Installation on the DataNode
- Unbalanced DataNode Disk Usages of a Node
- Locating Common Balance Problems
- HDFS Displays Insufficient Disk Space But 10% Disk Space Remains
- Error Message "error creating DomainSocket" Is Displayed When the HDFS Client Installed on the Core Node in a Normal Cluster Is Used
- HDFS Files Fail to Be Uploaded When the Client Is Installed on a Node Outside the Cluster
- Insufficient Number of Replicas Is Reported During High Concurrent HDFS Writes
- HDFS Client Failed to Delete Overlong Directories
- An Error Is Reported When a Node Outside the Cluster Accesses MRS HDFS
- "ALM-12027 Host PID Usage Exceeds the Threshold" Is Generated for a NameNode
- ALM-14012 JournalNode Is Out of Synchronization Is Generated in the Cluster
- Failed to Decommission a DataNode Due to HDFS Block Loss
- An Error Is Reported When DistCP Is Used to Copy an Empty Folder
Feedback
Was this page helpful?
Provide feedbackThank you very much for your feedback. We will continue working to improve the documentation.See the reply and handling status in My Cloud VOC.
The system is busy. Please try again later.
For any further questions, feel free to contact us through the chatbot.
Chatbot
