[CASSANDRA-14441] Materialized view is not deleting/updating data when made changes in base table

• Type: Bug
• Status: Resolved
• Priority: Low
• Resolution: Duplicate
• Fix Version/s: 3.11.5
• Component/s: Feature/Materialized Views
• Severity: Low
• Assignee: Unassigned
• Reporter: SWAPNIL BALWANT BHISEY
• Created: 08/May/18 23:22
• Updated: 01/Aug/21 11:28
• Resolved: 14/May/18 17:57

Description

we have seen issue in mat view for 3.11.1 where mat view

1) we have inserted a row in test table and the same recored is in test_mat table, with Enabled = true,
2) when I update the same record with Enabled = False, a new row is created in test_mat table(one with true and one with false) but in test table original record got updated to FALSE.
3) when I delete the record using Feature UUID then only the record with Fales is getting deleted in both the tables. however I can see the TRUE record in test_mat table.

Issue is not reproducible in 3.11.2
Steps

CREATE TABLE test (
feature_uuid uuid,
namespace text,
feature_name text,
allocation_type text,
description text,
enabled boolean,
expiration_dt timestamp,
last_modified_dt timestamp,
last_modified_user text,
persist_allocations boolean,
rule text,
PRIMARY KEY (feature_uuid, namespace, feature_name, allocation_type)
) WITH CLUSTERING ORDER BY (namespace ASC, feature_name ASC, allocation_type ASC)
AND bloom_filter_fp_chance = 0.01
AND caching = {'keys': 'ALL', 'rows_per_partition': 'NONE'}
AND comment = ''
AND compaction = {'class': 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy', 'max_threshold': '32', 'min_threshold': '4'}
AND compression = {'chunk_length_in_kb': '64', 'class': 'org.apache.cassandra.io.compress.LZ4Compressor'}
AND crc_check_chance = 1.0
AND dclocal_read_repair_chance = 0.3
AND default_time_to_live = 63072000
AND gc_grace_seconds = 864000
AND max_index_interval = 2048
AND memtable_flush_period_in_ms = 0
AND min_index_interval = 128
AND read_repair_chance = 0.3
AND speculative_retry = '99PERCENTILE';

CREATE MATERIALIZED VIEW test_mat AS
SELECT allocation_type, enabled, feature_uuid, namespace, feature_name, last_modified_dt, last_modified_user, persist_allocations, rule
FROM test
WHERE feature_uuid IS NOT NULL AND allocation_type IS NOT NULL AND namespace IS NOT NULL AND feature_name IS NOT NULL AND enabled IS NOT NULL
PRIMARY KEY (allocation_type, enabled, feature_uuid, namespace, feature_name)
WITH CLUSTERING ORDER BY (enabled ASC, feature_uuid ASC, namespace ASC, feature_name ASC)
AND bloom_filter_fp_chance = 0.01
AND caching = {'keys': 'ALL', 'rows_per_partition': 'NONE'}
AND comment = ''
AND compaction = {'class': 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy', 'max_threshold': '32', 'min_threshold': '4'}
AND compression = {'chunk_length_in_kb': '64', 'class': 'org.apache.cassandra.io.compress.LZ4Compressor'}
AND crc_check_chance = 1.0
AND dclocal_read_repair_chance = 0.1
AND default_time_to_live = 0
AND gc_grace_seconds = 864000
AND max_index_interval = 2048
AND memtable_flush_period_in_ms = 0
AND min_index_interval = 128
AND read_repair_chance = 0.0
AND speculative_retry = '99PERCENTILE';

INSERT INTO test (feature_uuid, namespace, feature_name, allocation_type, description, enabled, expiration_dt, last_modified_dt, last_modified_user, persist_allocations,rule) VALUES (uuid(),'Service','NEW','preallocation','20newproduct',TRUE,'2019-10-02 05:05:05 -0500','2018-08-03 06:06:06 -0500','swapnil',TRUE,'NEW');
UPDATE test SET enabled=FALSE WHERE feature_uuid=b2d5c245-e30e-4ea8-8609-d36b627dbb2a and namespace='Service' and feature_name='NEW' and allocation_type='preallocation' IF EXISTS ;
Delete from test where feature_uuid=98e6ebcc-cafd-4889-bf3d-774a746a3298;

 
 

Issue Links

• duplicates: CASSANDRA-14071 Materialized view on table with TTL issue