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UDF missing after Impala restart

Re: UDF missing after Impala restart

New Contributor

Is IMPALA-1748 already released in some version? We have cdh5.8.0 and this problem is still exists for UDFs written in java.

Re: UDF missing after Impala restart

Cloudera Employee

Yes the persistent UDFs feature is included in 5.8.0. Also, Java UDFs require a special syntax  to make them persistent.  You can find examples here.

 

https://www.cloudera.com/documentation/enterprise/5-8-x/topics/impala_create_function.html#create_fu...

 

Regular way of creating Impala Java UDFs, will wipe them off from the Catalog after a restart. This is done so to be consistent with Hive.

Highlighted

Re: UDF missing after Impala restart

New Contributor

Thank you for quick responce.

Really, i missed that for persistance i should omit parameters.