use alluxio-fuse-sidecar mode，when alluxio cluster is work，the application with sidecar pod return error message

[suntao1983]

Alluxio Version: What version of Alluxio are you using? 2.9.3 Describe the bug I deploy alluxio with k8s helm template in kubesphere, use alluxio-fuse-sidecar mode，when alluxio cluster is work，the application with sidecar pod return error message.

To Reproduce 1、deploy alluxio cluster in k8s，one master/7 worker 2、cluster is working，and i run alluxio runTests is ok 3、use deploy.yaml in my app project, to deploy application with one alluxio-fuse-siedecar in one pod, pod is running 4、the alluxio-fuse-sidecar container return an error message after a while , like this: Caused by: io.netty.channel AbstractChannel$AnnotatedConnectException: finishConnect(..) failed: Connection refused: comliance-toolchain-86d59d5867-7kmns/10.2.162.140:19998 .

Expected behavior comliance-toolchain-86d59d5867-7kmns/10.2.162.140
comliance-toolchain-86d59d5867-7kmns is the name of the app with sidecar pod, 10.2.162.140 is pod ip. I think the host in the error log maybe the alluxio master host is just right. when i login in the container shell , cat /opt/alluxio-2.3.0-SNAPSHOT/conf/alluxio-env.sh, the variable HOSTNAME is this value.

Urgency I want to use local path in my app mount path ,to read/write the file , and then the change update to UFS. But now cannot connect with alluxio cluster, i suggest maybe there is something wrong with my configuration , but there is not docs to guid it.

Are you planning to fix it no

Additional context Add any other context about the problem here.

[suntao1983]

[ChunxuTang]

Thanks for raising the question. @ssz1997 Would you mind taking a look at the issue?

[ssz1997]

Hi @suntao1983 I'm seeing your alluxio is under path /opt/alluxio-2.3.0-SNAPSHOT. Can you double check your alluxio version? Please use the latest version if possible.

[suntao1983]

Hi @suntao1983 I'm seeing your alluxio is under path /opt/alluxio-2.3.0-SNAPSHOT. Can you double check your alluxio version? Please use the latest version if possible.

alluxio-2.3.0-SNAPSHOT is the alluxio-fuse version, alluxio cluster version is 2.9.0

[ssz1997]

@suntao1983 Is there a reason why you are using 2.3.0 for alluxio fuse? That is one of the earliest versions of alluxio fuse, which I'm sure has a lot of bugs and performance issues.

[suntao1983]

@suntao1983 Is there a reason why you are using 2.3.0 for alluxio fuse? That is one of the earliest versions of alluxio fuse, which I'm sure has a lot of bugs and performance issues.

alluxio-fuse didnot give a latest version image, i found in the aliyun and dockerhub , but not found

[ssz1997]

@suntao1983 You can use the same image for Alluxio and Alluxio Fuse. Now they share the same image. Make sure to include the conf configmap generated by helm for your Alluxio fuse container too. AlluxioFuse needs the hostname of Alluxio master, which is included in the configmap.

[suntao1983]

the issue is fix , it maybe version problem. but now happen the app mount path dont work

[suntao1983]

[suntao1983]

this is the sidecar container

this is the app container

[ssz1997]

For your fuse container, try mount Alluxio into a subdirectory of /mnt/alluxio-fuse, e.g. /mnt/alluxio-fuse/alluxio-fuse. This can be configured in the args.

[ssz1997]

If the mountPath is the same path as Alluxio Fuse mount path, it doesn't work.

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