lowka commented on code in PR #2712:
URL: https://github.com/apache/ignite-3/pull/2712#discussion_r1399289466
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modules/runner/src/testFixtures/java/org/apache/ignite/internal/ClusterPerClassIntegrationTest.java:
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@@ -227,4 +266,64 @@ public Person(int id, String name, double salary) {
this.salary = salary;
}
}
+
+ /**
+ * Waits for some amount of time so that read-only transactions can
observe the most recent version of the catalog.
+ */
+ protected static void waitForReadTimestampThatObservesMostRecentCatalog()
{
+ // See TxManagerImpl::currentReadTimestamp.
+ long delay = HybridTimestamp.CLOCK_SKEW +
TestIgnitionManager.DEFAULT_PARTITION_IDLE_SYNC_TIME_INTERVAL_MS;
+ try {
+ TimeUnit.MILLISECONDS.sleep(delay);
+ } catch (InterruptedException e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ private static List<List<Object>> executeAwaitingIndexes(IgniteImpl node,
Function<IgniteImpl, List<List<Object>>> statement) {
+ CatalogManager catalogManager = node.catalogManager();
+
+ // Get existing indexes
+ Set<Integer> existing =
catalogManager.indexes(catalogManager.latestCatalogVersion())
+ .stream().map(CatalogObjectDescriptor::id)
+ .collect(Collectors.toSet());
+
+ List<List<Object>> result = statement.apply(node);
Review Comment:
> Time t1: CREATE INDEX - Index descriptor with available = false is added
to the catalog. + schedules IndexBuild task.
...
> Time t2: Some time later IndexBuild task completes and sets available =
true to that index
...
RW transaction works, RO transaction does. Here is why:
A client can not won't observe an index in the catalog because read-only
transaction as a delay, see TxManager::currentTimestamp.
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