Active Syncing is not supported on this UFS type: hdfs

[Crazybean-lwb]

Alluxio Version: Alluxio version: v2.8.0

Other tools Version: k8s version: v1.20.11 docker version: 20.10.11 hdfs version: 3.3.2

Some background to add hdfs was deployed by binary file hdfs was started by user root:supergroup alluxio was deployed in k8s by helm run user root:root

Describe the bug [bug1] I can't sync metadata and raw data from hdfs to alluxio. output exception: Active Syncing is not supported on this UFS type: hdfs [bug2] I can't write data in ReadWriteMany PVC created by alluxio csi output xxx.txt" E514: write error (file system full?) To Reproduce

1. start sync alluxio dir in alluxio master pod
2. error log in alluxio master

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3. I can touch new file in alluxio pvc, but can not write data in when write something into touched new file, error occured: or can not write into swap file
4. error log in alluxio master

Problem

1. I found out hdfs version 3.3.2 have enabled support for ACL, can not understand Active Syncing is not supported on this UFS type: hdfs
2. I do not understand the procession of write data, .swap file id needed, but alluxio can not sync it.

[yohengyang]

Make sure the parent path of your startSync path /liuweibin in the mount table specifies the hdfs version. you can use "alluxio fs mount --option alluxio.underfs.version=xxx"

[Crazybean-lwb]

Make sure the parent path of your startSync path /liuweibin in the mount table specifies the hdfs version. you can use "alluxio fs mount --option alluxio.underfs.version=xxx"

I have tried, output as follows:

[Crazybean-lwb]

Make sure the parent path of your startSync path /liuweibin in the mount table specifies the hdfs version. you can use "alluxio fs mount --option alluxio.underfs.version=xxx"

I have tried many times mount hdfs with under.version, no differences happend.

[Crazybean-lwb]

Make sure the parent path of your startSync path /liuweibin in the mount table specifies the hdfs version. you can use "alluxio fs mount --option alluxio.underfs.version=xxx"

I have tried many times mount hdfs with under.version, no differences happend.

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I found sollution to [1. start sync alluxio dir in alluxio master pod] alluxio latest version surpport hdfs version 3.3.1 by default, while my hdfs version is 3.3.2. I build alluxio-underfs-hdfs jar following the document, I can resolve the problem

bug2 still can not be resolved. I still can not write data in ReadWriteMany PVC created by alluxio csi output xxx.txt" E514: write error (file system full?)

[Crazybean-lwb]

Make sure the parent path of your startSync path /liuweibin in the mount table specifies the hdfs version. you can use "alluxio fs mount --option alluxio.underfs.version=xxx"

I have tried many times mount hdfs with under.version, no differences happend.

I found sollution to [1. start sync alluxio dir in alluxio master pod]

alluxio latest version surpport hdfs version 3.3.1 by default, while my hdfs version is 3.3.2. I build alluxio-underfs-hdfs jar following the document, I can resolve the problem bug2 still can not be resolved. I still can not write data in ReadWriteMany PVC created by alluxio csi output xxx.txt" E514: write error (file system full?)

get some reply for bugs 2

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