这样就完成了一次高效的查询操作,相比于之前3次完全独立的查询调用。 目前此方面的改进在JIRAHDFS-13616:Batch listing of multiple directories。 另外,根据HDFS-13616上面的讨论,此部分改进在元数据的loading过程中会有近10到20倍的性能提升。 Batch-List API在DFSClient.java中的定义如下: publicBatchedDirectoryListin...
If you use PySpark, you can execute commands interactively: List all files from a chosen directory: hdfs dfs -ls <path> e.g.: hdfs dfs -ls /user/path: import os import subprocess cmd = 'hdfs dfs -ls /user/path' files = subprocess.check_output(cmd, shell=True).strip().split('\n...
List of Apache Hadoop hdfs commands Apache Hadoop : Creating Wordcount Java Project with Eclipse Part 1 Apache Hadoop : Creating Wordcount Java Project with Eclipse Part 2 Apache Hadoop : Creating Card Java Project with Eclipse using Cloudera VM UnoExample for CDH5 - local run Apache Hadoop...
CDFS DFHDFST DFHISC 2 (INTERCOM) Dynamic starts with interval CDTS DFHZATS DFHSPI 1 Provides remote single delete transaction CEBR* DFHEDFBR DFHEDF 2 (DEVELOPER) Browse temporary storage CECI* DFHECIP DFHINTER 2 (DEVELOPER) Command level interpreter CECS DFHECSP DFHINTER 2 (DEVELOPER) Command...
rClone支持的命令非常多,可以参考Rclone Commands页面有选择的使用,对于不熟悉的命令,可以使用rclone command --help来查看用法。 配置选项 Global Flags(https://rclone.org/flags/)提供了rClone支持的全部配置选项,如果想要看某一个命令具体支持哪些,可以通过如上提到的命令列表中,跳转到特定命令页查看。
List of Apache Hadoop hdfs commands Apache Hadoop : Creating Wordcount Java Project with Eclipse Part 1 Apache Hadoop : Creating Wordcount Java Project with Eclipse Part 2 Apache Hadoop : Creating Card Java Project with Eclipse using Cloudera VM UnoExample for CDH5 - local run Apache Hadoop...
Commands List Objects List Fields List Exceptions By Type Exceptions Distribution Exceptions Monitor Exceptions Distribution List Number of db per type DB Server List Logged Threshold Alerts Logged R/T Alerts Generated Alert Notifications Exception Count ...
commands = py.test -x -vv {env:CI_FLAGS:} tests/unit{posargs} py.test -vv {env:CI_FLAGS:} tests/unit{posargs} [testenv:py34-unit] commands = py.test -x -vv {env:CI_FLAGS:} tests/unit{posargs} py.test -vv {env:CI_FLAGS:} tests/unit{posargs} 1 change: 1 addition & 0...
The array of connection types. Accepted values are: AMAZON_KINESIS, AMAZON_REDSHIFT, AMAZON_S3, AZURE_DATA_LAKE_STORAGE, AZURE_SYNAPSE_ANALYTICS, DB2, ELASTICSEARCH, GENERIC, GOLDENGATE, GOOGLE_BIGQUERY, GOOGLE_CLOUD_STORAGE, HDFS, JAVA_MESSAGE_SERVICE, KAFKA, KAFKA_SCHEMA_REGISTRY, MICROSOFT_SQLS...
SeaweedFS - SeaweedFS is an open source distributed file system supporting WebDAV, S3 API, FUSE mount, HDFS, etc, optimized for lots of small files, and easy to add capacity. Apache-2.0 Go SFTPGo - Flexible, fully featured and highly configurable SFTP server with optional FTP/S and WebDAV ...