Hello Team, We are using Impala 3.2.0 there are some queries which were working 3-4 weeks back and now they have suddenly started throwing "IllegalStateException: null" exception. In last 3-4 nothing has changed on our Impala cluster. Error logs also does not suggest the cause of the error. Can anybody help us as to why this issue arising. Query which failing looks something like this WITH banner_test AS (WITH layout_id AS
(
SELECT <some columns>
FROM table_v1
WHERE
( layout_component_id = <some_id>)
),
layouts AS
(SELECT <some columns>,
coalesce() AS col1,
<some columns>
FROM table_v2 lch
WHERE lch.some_id IN
(SELECT some_id
FROM table_v3
WHERE some_field_v1 IN
(SELECT some_field from layout_id))
AND lch.start_time >= '2019-01-01T00:00:00.000+00:00'
),
full_data AS
(SELECT lctd.some_field_v1,
l.*,
lctd.some_field_v2,
min(l.start_time)over(PARTITION BY some_field_v1) AS min_start_time,
max(l.end_time)over(PARTITION BY some_field_v1) AS max_end_time
FROM tables_v4 l
INNER JOIN tables_v5 lctd ON l.some_id = lctd.some_id),
tables_v5 AS
(
SELECT <some_fields>,
case when some_field like 'val1%' then 'val1' else 'val2' end as business
FROM tables_v6
WHERE date_str >= '2019-01-01'
)
SELECT <some_fields>,
case when x3.some_field=x2.some_field then x3.some_field end as some_field,
x3.some_id as x3.some_id
FROM
(SELECT DISTINCT some_filed,
more_fields
FROM tables_v7 sve
INNER JOIN tables_v8 lfd ON sve.field1 = lfd.field2
AND sve.type = sve.type
AND coalesce(sve.field,"somestring") = lfd.field
AND sve.created_at BETWEEN lfd.min_start_time AND coalesce(lfd.max_end_time,'2030-12-31T00:00:00.000+00:00')
INNER JOIN tables_v9 aau ON sve.some_id = aau.some_id
WHERE aau.some_id IS NOT NULL) x1
INNER JOIN tables_v10 ild on ild.hash_value=x1.hash_value
LEFT JOIN
(SELECT DISTINCT some_filed,
<some_fields>
FROM tables_v10 sve
INNER JOIN full_data lfd ON sve.some_id = lfd.some_id)
x2 ON x1.some_id_1 = x2.some_id_1
AND x1.created_at < x2.created_at
and ild.lcid = x2.id
LEFT JOIN
(SELECT <some_fileds>
FROM table_v11 where status='SUCCESS')
x3 ON x2._id = x3._id
AND x2.created_at < x3.checked_out_at )
SELECT
field_1,
field_2,
field_3,
TO_DATE(FROM_UTC_TIMESTAMP(started_date ,'Asia/Bangkok')) AS started_date_1,
TO_DATE(FROM_UTC_TIMESTAMP(ended_date ,'Asia/Bangkok')) AS ended_date_1,
(((DATEDIFF(FROM_UTC_TIMESTAMP(banner_ended ,'Asia/Bangkok'), '1970-01-04')%7 + 7)%7 - 1 + 7)%(7)) AS ended_day_of_week_index_1,
DAYNAME(FROM_UTC_TIMESTAMP(banner_ended ,'Asia/Bangkok')) AS _ended_day_of_week_1,
_present_on_screen_id AS _test_screen_id_1,
count(distinct _test.x2_session_id)/count(distinct _test.x1_session_id) AS test_ctr_sessions_1,
count(distinct _test.x2_anonymous_id)/count(distinct _test.x1_anonymous_id) AS test_ctr_aid_1
FROM banner_test
WHERE ((_test.banner_started >= TO_UTC_TIMESTAMP('1900-01-01 00:00:00.000000','Asia/Bangkok'))) AND (banner_test.region REGEXP '$') AND (banner_test.business REGEXP '$')
GROUP BY 1,2,3,4,5,6,7,8
ORDER BY _banner_started_date_1 DESC
LIMIT 500; I have obfuscated some of the details here but information regarding joins, aggregations, group by etc is preserved. Regards Parth
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