In addition to the actual content, the file data of the operating system usually contains many attributes, such as the file permissions and file attributes of the Linux operating system. The file system usually stores these two parts in inode and block respectively. Inode and block overview Files are stored on the hard disk. The […]
Tag: inode
The business is not running, and the migration has been completed. How does Linode perform real-time migration?
When developers deploy workloads to cloud computing platforms, they often don’t need to think about the underlying hardware that runs those services. In people’s idealized image of “the cloud,” hardware maintenance and physical limitations are often invisible, yet hardware inevitably requires maintenance from time to time, which can lead to downtime. To avoid such downtime […]
CDH’s HIVE exits abnormally Permission denied: user=hive, access=WRITE, inode=”/tmp”:hdfs:supergroup:drwxr-xr-x
CDH shows abnormal exit Check which server the HiveServer2 instance is on, and check the log /var/log/hive/hadoop-cmf-hive-HIVESERVER2-hadoop105.log.out. The log error is as follows: 2023-05-23 15:18:05,331 ERROR org.apache.hive.service.server.HiveServer2: [main]: Error starting HiveServer2 java.lang.Error: Max start attempts 30 exhausted at org.apache.hive.service.server.HiveServer2.startHiveServer2(HiveServer2.java:609) ~[hive-service-2.1.1-cdh6.3.2.jar:2.1.1-cdh6.3.2] at org.apache.hive.service.server.HiveServer2.access$700(HiveServer2.java:94) ~[hive-service-2.1.1-cdh6.3.2.jar:2.1.1-cdh6.3.2] at org.apache.hive.service.server.HiveServer2$StartOptionExecutor.execute(HiveServer2.java:827) [hive-service-2.1.1-cdh6.3.2.jar:2.1.1-cdh6.3.2] at org.apache.hive.service.server.HiveServer2.main(HiveServer2.java:696) [hive-service-2.1.1-cdh6.3.2.jar:2.1.1-cdh6.3.2] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_181] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) […]
Linux file path, directory entry, inode number association
Article directory 1. File path Second, the file directory item 1 Introduction 2. Examples 3. File inode number 3.1 Introduction 3.2 Find the inode number by file name 3.3 Inode number search file Summarize 1. File path In Linux, the file path is represented by a string, consisting of multiple directory names and file names, […]
IntelliNode: Node.js large model access unified interface library [Gen AI]
Updating your application with the latest AI models can be challenging because it involves understanding the intricacies of different AI models and managing many dependencies. IntelliNode is an open-source library designed to address the challenge of integrating AI models by providing a unified and easy-to-use interface. This enables developers to quickly build AI prototypes and […]
MinIO solves the problem of full inode of ext4 hard disk (xfs dynamically expands the proportion of inode space)
Table of Contents 1. Problem description Two, the solution 1. Backup minio data to other disks or machines 2. Unmount 3. Do not format the data, change the ext4 file format to xfs file format (unsuccessful, use the following method) 3. Format data 1. Force format xfs 2. Mount 4. Inode space ratio of xfs […]
Path Extension: An In-Depth Anatomy of Inodes, Hard Links, and Symbolic Links
Article directory refer to describe Inodes everything is a file advantage shortcoming inodes inodes inode number The role of inode and inode number in the file loading process view inode number Link link file Linked File Usage Scenarios hard link Hard links share the same inode as the source file symbolic link Most operations performed […]
The number of inodes has reached the upper limit
inode description inode view command stat Function: List file size, number of blocks occupied by the file, block size, major device number and minor device number, inode number, number of links, access rights, uid, gid, atime, mtime, ctime ruanyang@ruanyang-HP-ProDesk-680-G2-MT:~$ stat go File: “go” Size: 3657 Blocks: 8 IO Blocks: 4096 Normal File Device: 802h/2050d Inode: […]
Ranger installation and deployment, org.apache.hadoop.ipc.RemoteException: Permission denied: user=jack, access=WRITE, inode
2 Ranger installation 2.1 Environment preparation Ranger2.0 requires the corresponding Hadoop to be 3.x or above, Hive to be 3.x or above, and JDK to be 1.8 or above! 2.2 Install RangerAdmin 2.2.1 Database environment preparation Create a database where Ranger stores data in the Mysql database: mysql> create database ranger; Create user: mysql> grant […]
The main role of dentry and inode in the file system
In the previous article, we briefly discussed the role of struct super_block, we know that the root directory of our file system can be found in struct super_block, with this root directory we You can create a new file below, but we did not discuss how the root directory is generated, because we need to […]