missing methods in the org.projectnessie.client.api

[Jacopo Tagliabue]

Hi all,

I just started using Nessie this week-end and built my own containerized version of the generic commands shown in the nessie-iceberg-demo-nba.ipynb demo. Thanks so much for your incredible work!

Some of them work indeed fine - e.g.  USE REFERENCE main IN dev_catalog,  SHOW TABLES IN dev_catalog, CREATE BRANCH etc. After a bit of fiddling around, I was able to run Nessie as its own container and use s3 instead of local storage to host the files (see below).

However, some commands trigger "method not found error" : LIST for example cannot be executed

An error occurred while calling o53.sql.\n: java.lang.NoSuchMethodError: org.projectnessie.client.api.GetAllReferencesBuilder.stream(

and MERGE is also triggering an exception

An error occurred while calling o53.sql.\n: java.lang.NoSuchMethodError: org.projectnessie.client.api.MergeReferenceBuilder.merge()

I'm running Spark 3.3, with nessie-spark-extensions-3.3_2.12-0.53.1 for your reference - but I'm a bit puzzled by the fact that certain commands clearly work and others don't.

Is there something obvious I'm missing here?

Thanks in advance for your help!

[Alfredo Serafini]

Hi Jacopo, 

I'm new to Nessie, but the error (java.lang.NoSuchMethodError) typically suggests that some of the jar libraries was compiled againsta a different jvm version, than the one used for runtime.

If I'm not wrong nessie jar should be deployed on spark 3.3, which requires java 9+, scala 2.12+ and sscala-reflect (2.13+ ?), so I would start checking those requirements.

I hope this helps,
Alfredo

[Dmitri Bourlatchkov]

Hi Alfredo,

This issue was resolved in Zulip, IIRC.

Cf. https://project-nessie.zulipchat.com/#narrow/stream/371193-dev/topic/missing.20methods.20in.20the.20org.2Eprojectnessie.2Eclient.2Eapi.20on.20PySpa/near/344988240

Cheers,

Dmitri.

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