[jira] [Created] (MADLIB-1233) DT: install-check fails intermittently

["Rahul Iyer (JIRA)" <ji...@apache.org>]

Rahul Iyer created MADLIB-1233:
----------------------------------

             Summary: DT: install-check fails intermittently 
                 Key: MADLIB-1233
                 URL: https://issues.apache.org/jira/browse/MADLIB-1233
             Project: Apache MADlib
          Issue Type: Task
          Components: Module: Decision Tree
            Reporter: Rahul Iyer


Decision tree install-check fails intermittently when run on a big, distributed GPDB server with below error: 

{code}
DROP TABLE IF EXISTS train_output, train_output_summary;
psql:/tmp/madlib.xStCxm/recursive_partitioning/test/decision_tree.sql_in.tmp:273: NOTICE:  table "train_output" does not exist, skipping
psql:/tmp/madlib.xStCxm/recursive_partitioning/test/decision_tree.sql_in.tmp:273: NOTICE:  table "train_output_summary" does not exist, skipping
DROP TABLE
SELECT tree_train('dt_golf'::text,         -- source table
                         'train_output'::text,    -- output model table
                         'id'::text,              -- id column
                         'temperature::double precision'::text,           -- response
                         'humidity, windy, "Cont_features"'::text,   -- features
                         NULL::text,        -- exclude columns
                         'gini'::text,      -- split criterion
                         NULL::text,        -- no grouping
                         NULL::text,        -- no weights
                         10::integer,       -- max depth
                         6::integer,        -- min split
                         2::integer,        -- min bucket
                         8::integer,        -- number of bins per continuous variable
                         'cp=0.01'          -- cost-complexity pruning parameter
                         );
psql:/tmp/madlib.xStCxm/recursive_partitioning/test/decision_tree.sql_in.tmp:288: ERROR:  plpy.SPIError: Function "_dst_compute_entropy_transition(integer[],integer,integer)": Invalid type conversion. Null where not expected.  (seg62 slice1 sdw8.gphd.local:1031 pid=457374) (plpython.c:4656)
CONTEXT:  Traceback (most recent call last):
  PL/Python function "tree_train", line 28, in <module>
    null_handling_params, verbose_mode)
  PL/Python function "tree_train", line 484, in tree_train
  PL/Python function "tree_train", line 264, in _get_tree_states
  PL/Python function "tree_train", line 720, in _get_bins
PL/Python function "tree_train"
{code}



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