Help Center/ MapReduce Service/ Component Operation Guide (LTS)/ Using Impala/ Impala FAQ/ What Should I Do If Joins Fail After I Interconnect Impala with an Older Version of Kudu?
Updated on 2025-07-16 GMT+08:00
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What Should I Do If Joins Fail After I Interconnect Impala with an Older Version of Kudu?

Question

When Impala 4.3.0 is interconnected with an older version of Kudu (MRS 3.0.5), joins fail and display this error message:

Unable to open scanner for node with id '0' for Kudu table 'impala::xxx': Remote error: unsupported feature flags

Answer

To query a table of an older version Kudu (MRS 3.0.5) with Impala 4.3.0 (MRS 3.3.1-LTS and MRS 3.5.0-LTS), set enabled_runtime_filter_types=MIN_MAX.

Parent topic: Impala FAQ