Francis Chuang commented on CALCITE-1950:

This is still a problem with HSQLDB 2.4.0. I have opened CALCITE-2250 and 
included a bash script as well as all the protobuf messages to reproduce. I 
think we should continue the discussion over there.

> Avatica HSQLDB docker image hangs
> ---------------------------------
>                 Key: CALCITE-1950
>                 URL: https://issues.apache.org/jira/browse/CALCITE-1950
>             Project: Calcite
>          Issue Type: Bug
>          Components: avatica
>            Reporter: Francis Chuang
>            Assignee: Josh Elser
>            Priority: Major
> I am using the calcite-avatica hsqldb image here: 
> https://hub.docker.com/r/f21global/calcite-avatica/
> The image is built using this docker file: 
> https://github.com/apache/calcite-avatica/tree/master/docker/src/main/docker/hypersql
> I am currently running integration tests for the Go client against that 
> image. It seems that after a certain amount of operations, the server will 
> lock up. From the Go http client, it seems that avatica no longer responds. 
> There wasn't any interesting information when I ran `docker logs` on the 
> container avatica/hsqldb is running in.
> When it starts hanging, tests that were passing previously would fail 
> randomly, because the test is not able to get a response form avatica. 
> Usually, deleting and recreating the container would resolve the problem, but 
> after using the same container through a few more test cycles, it starts to 
> hang again.

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