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Throw CCE when using Fuse while enable client cache

See original GitHub issue

Alluxio Version: Alluxio master branch, HEAD

Describe the bug

java.lang.ClassCastException: alluxio.client.file.cache.LocalCacheFileInStream cannot be cast to alluxio.client.file.AlluxioFileInStream
        at alluxio.fuse.AlluxioJniFuseFileSystem.readInternal(AlluxioJniFuseFileSystem.java:429)
        at alluxio.fuse.AlluxioJniFuseFileSystem.lambda$read$17(AlluxioJniFuseFileSystem.java:404)
        at alluxio.fuse.AlluxioFuseUtils.call(AlluxioFuseUtils.java:280)
        at alluxio.fuse.AlluxioJniFuseFileSystem.read(AlluxioJniFuseFileSystem.java:404)
        at alluxio.jnifuse.AbstractFuseFileSystem.readCallback(AbstractFuseFileSystem.java:180)

To Reproduce

Enable client cache in alluxio-site.properties

alluxio.user.client.cache.enabled=true

And then start Alluxio-fuse, read a file

Expected behavior

get the content of the file.

Urgency

Urgent, block to use Alluxio Local Cache.

Additional context No.

Issue Analytics

State:
Created 2 years ago
Comments:5 (4 by maintainers)

Top GitHub Comments

1reaction

maobaolongcommented, May 21, 2021

@apc999 Hi Bin, In our scenario, we have to use standalone mode fuse, because the alluxio-fuse is out of our alluxio cluster, even worse, the ttl between alluxio-fuse and alluxio cluster are high ~4ms, so we’d like to enable client.metadata.cache and client.local.cache feature to reduce the communicate and data transform between alluxio-fuse and alluxio cluster, but met this CCE.

0reactions

AlexChenSkyBluecommented, May 21, 2021

We plan to use FUSE+Worker combination. but there is no valid kubernetes helm deployment option yet

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