From 15ba8feb67c3ebbf76e5295ed20b7d4905d34c97 Mon Sep 17 00:00:00 2001 From: tangyoupeng Date: Fri, 23 Apr 2021 14:26:52 +0800 Subject: [PATCH] hadoop: add doc for user and uid sync to avoid perm error (#340) * hadoop: add doc for user and uid sync to avoid perm error * hadoop: update --- docs/en/hadoop_java_sdk.md | 2 ++ docs/zh_cn/hadoop_java_sdk.md | 2 ++ 2 files changed, 4 insertions(+) diff --git a/docs/en/hadoop_java_sdk.md b/docs/en/hadoop_java_sdk.md index 323aaa11..36fd33cc 100644 --- a/docs/en/hadoop_java_sdk.md +++ b/docs/en/hadoop_java_sdk.md @@ -2,6 +2,8 @@ JuiceFS provides [Hadoop-compatible FileSystem](https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-common/filesystem/introduction.html) by Hadoop Java SDK to support variety of components in Hadoop ecosystem. +**NOTICE: JuiceFS use local user uid mapping. So, you should sync all the needed users and their uids across the whole Hadoop Cluster to avoid permission error.** + ## Hadoop Compatibility JuiceFS Hadoop Java SDK is compatible with Hadoop 2.x and Hadoop 3.x. As well as variety of components in Hadoop ecosystem. diff --git a/docs/zh_cn/hadoop_java_sdk.md b/docs/zh_cn/hadoop_java_sdk.md index c7160200..ba377475 100644 --- a/docs/zh_cn/hadoop_java_sdk.md +++ b/docs/zh_cn/hadoop_java_sdk.md @@ -2,6 +2,8 @@ JuiceFS 提供兼容 HDFS 接口的 Java 客户端来支持 Hadoop 生态中的各种应用。 +**注意：由于 JuiceFS 使用本地的 user 和 uid 映射。因此，在分布式环境下使用，需要同步所有需要使用的 user 和 uid 到所有的 Hadoop 节点上，以避免权限问题。** + ## Hadoop 兼容性 JuiceFS Hadoop Java SDK 同时兼容 Hadoop 2.x 以及 Hadoop 3.x 环境，以及 Hadoop 生态中的各种主流组件。 -- GitLab