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From Andrés de la Peña (JIRA) <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-13737) Node start can fail if the base table of a materialized view is not found
Date Tue, 01 Aug 2017 18:38:00 GMT
Andrés de la Peña created CASSANDRA-13737:
---------------------------------------------

             Summary: Node start can fail if the base table of a materialized view is not
found
                 Key: CASSANDRA-13737
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13737
             Project: Cassandra
          Issue Type: Bug
          Components: Distributed Metadata, Materialized Views
            Reporter: Andrés de la Peña
            Assignee: Andrés de la Peña
             Fix For: 3.0.x, 3.11.x, 4.x


Node start can fail if the base table of a materialized view is not found, which is something
that can happen under certain circumstances. There is a dtest reproducing the problem:
{code}
cluster = self.cluster
cluster.populate(3)
cluster.start()
node1, node2, node3 = self.cluster.nodelist()
session = self.patient_cql_connection(node1, consistency_level=ConsistencyLevel.QUORUM)
create_ks(session, 'ks', 3)

session.execute('CREATE TABLE users (username varchar PRIMARY KEY, state varchar)')

node3.stop(wait_other_notice=True)

# create a materialized view only in nodes 1 and 2
session.execute(('CREATE MATERIALIZED VIEW users_by_state AS '
                 'SELECT * FROM users WHERE state IS NOT NULL AND username IS NOT NULL '
                 'PRIMARY KEY (state, username)'))

node1.stop(wait_other_notice=True)
node2.stop(wait_other_notice=True)

# drop the base table only in node 3
node3.start(wait_for_binary_proto=True)
session = self.patient_cql_connection(node3, consistency_level=ConsistencyLevel.QUORUM)
session.execute('DROP TABLE ks.users')

cluster.stop()
cluster.start()  # Fails
{code}
This is the error during node start:
{code}
java.lang.IllegalArgumentException: Unknown CF 958ebc30-76e4-11e7-869a-9d8367a71c76
	at org.apache.cassandra.db.Keyspace.getColumnFamilyStore(Keyspace.java:215) ~[main/:na]
	at org.apache.cassandra.db.view.ViewManager.addView(ViewManager.java:143) ~[main/:na]
	at org.apache.cassandra.db.view.ViewManager.reload(ViewManager.java:113) ~[main/:na]
	at org.apache.cassandra.schema.Schema.alterKeyspace(Schema.java:618) ~[main/:na]
	at org.apache.cassandra.schema.Schema.lambda$merge$18(Schema.java:591) ~[main/:na]
	at java.util.Collections$UnmodifiableMap$UnmodifiableEntrySet.lambda$entryConsumer$0(Collections.java:1575)
~[na:1.8.0_131]
	at java.util.HashMap$EntrySet.forEach(HashMap.java:1043) ~[na:1.8.0_131]
	at java.util.Collections$UnmodifiableMap$UnmodifiableEntrySet.forEach(Collections.java:1580)
~[na:1.8.0_131]
	at org.apache.cassandra.schema.Schema.merge(Schema.java:591) ~[main/:na]
	at org.apache.cassandra.schema.Schema.mergeAndAnnounceVersion(Schema.java:564) ~[main/:na]
	at org.apache.cassandra.schema.MigrationTask$1.response(MigrationTask.java:89) ~[main/:na]
	at org.apache.cassandra.net.ResponseVerbHandler.doVerb(ResponseVerbHandler.java:53) ~[main/:na]
	at org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:72) ~[main/:na]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[na:1.8.0_131]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[na:1.8.0_131]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) ~[na:1.8.0_131]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_131]
	at org.apache.cassandra.concurrent.NamedThreadFactory.lambda$threadLocalDeallocator$0(NamedThreadFactory.java:81)
[main/:na]
	at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_131]
{code}



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