ekaterinadimitrova2 commented on code in PR #1850:
URL: https://github.com/apache/cassandra/pull/1850#discussion_r966475214
##########
test/distributed/org/apache/cassandra/distributed/test/SchemaTest.java:
##########
@@ -86,4 +98,58 @@ private void selectSilent(Cluster cluster, String name)
assertTrue(causeIsUnknownColumn);
}
}
+
+ @Test
+ public void schemaReset() throws Throwable
+ {
+ int delay = 5000;
+ CassandraRelevantProperties.MIGRATION_DELAY.setInt(delay);
+ CassandraRelevantProperties.SCHEMA_PULL_INTERVAL_MS.setInt(delay);
+
+ try (Cluster cluster = init(Cluster.build(2).withConfig(cfg ->
cfg.with(Feature.GOSSIP, Feature.NETWORK)).start()))
+ {
+ cluster.schemaChange("CREATE TABLE " + KEYSPACE + ".tbl (pk INT
PRIMARY KEY, v TEXT)");
+
+ assertTrue(cluster.get(1).callOnInstance(() ->
Schema.instance.getTableMetadata(KEYSPACE, "tbl") != null));
+ assertTrue(cluster.get(2).callOnInstance(() ->
Schema.instance.getTableMetadata(KEYSPACE, "tbl") != null));
+
+ cluster.get(2).shutdown().get();
+
+ Awaitility.await()
+ .atMost(ofSeconds(30))
+ .until(() -> cluster
+ .get(1)
+ .callOnInstance(() -> Gossiper.instance
+ .getLiveMembers()
+ .stream()
+ .allMatch(addr ->
addr.equals(FBUtilities.getBroadcastAddressAndPort()))));
+
+ // when schema is removed and there is no other node to fetch it
from, node 1 should be left with clean schema
+ //noinspection Convert2MethodRef
+ cluster.get(1).runOnInstance(() ->
StorageService.instance.resetLocalSchema());
+ assertTrue(cluster.get(1).callOnInstance(() ->
Schema.instance.getTableMetadata(KEYSPACE, "tbl") == null));
+
+ // sleep slightly longer than the schema pull interval
+ Uninterruptibles.sleepUninterruptibly((int) (delay * 1.2),
TimeUnit.MILLISECONDS);
Review Comment:
Do we need this sleep actually or only the one after start?
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