//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test void shouldStayBoundUnderStress() throws Exception
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
internal virtual void ShouldStayBoundUnderStress()
{
// GIVEN
MutableLongSet acquired = new LongHashSet();
IList <long> acquiredList = new List <long>(); // for quickly finding random to remove
long stableGeneration = GenerationSafePointer.MIN_GENERATION;
long unstableGeneration = stableGeneration + 1;
int iterations = 100;
// WHEN
for (int i = 0; i < iterations; i++)
{
for (int j = 0; j < 10; j++)
{
if (_random.nextBoolean())
{
// acquire
int count = _random.intBetween(5, 10);
for (int k = 0; k < count; k++)
{
long acquiredId = _freelist.acquireNewId(stableGeneration, unstableGeneration);
assertTrue(acquired.add(acquiredId));
acquiredList.Add(acquiredId);
}
}
else
{
// release
int count = _random.intBetween(5, 20);
for (int k = 0; k < count && !acquired.Empty; k++)
{
long id = acquiredList.RemoveAt(_random.Next(acquiredList.Count));
assertTrue(acquired.remove(id));
_freelist.releaseId(stableGeneration, unstableGeneration, id);
}
}
}
foreach (long id in acquiredList)
{
_freelist.releaseId(stableGeneration, unstableGeneration, id);
}
acquiredList.Clear();
acquired.clear();
// checkpoint, sort of
stableGeneration = unstableGeneration;
unstableGeneration++;
}
// THEN
assertTrue(_freelist.lastId() < 200, _freelist.lastId().ToString());
}
// TODO analyzer setting must be replicates to all cluster members
// TODO eventually_consistent setting must be replicated to all cluster members.
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: private void awaitCatchup() throws InterruptedException
private void AwaitCatchup()
{
MutableLongSet appliedTransactions = new LongHashSet();
System.Action <ClusterMember> awaitPopulationAndCollectionAppliedTransactionId = member =>
{
GraphDatabaseAPI db = member.database();
try
{
using (Transaction ignore = Db.beginTx())
{
Db.schema().awaitIndexesOnline(20, TimeUnit.SECONDS);
Db.execute(AWAIT_REFRESH).close();
DependencyResolver dependencyResolver = Db.DependencyResolver;
TransactionIdStore transactionIdStore = dependencyResolver.resolveDependency(typeof(TransactionIdStore));
appliedTransactions.add(transactionIdStore.LastClosedTransactionId);
}
}
catch (Exception e) when(e is QueryExecutionException || e is System.ArgumentException)
{
if (e.Message.Equals("No index was found"))
{
// Looks like the index creation hasn't been replicated yet, so we force a retry by making sure that
// the 'appliedTransactions' set will definitely contain more than one element.
appliedTransactions.add(-1L);
appliedTransactions.add(-2L);
}
}
catch (NotFoundException)
{
// This can happen due to a race inside `db.schema().awaitIndexesOnline`, where the list of indexes are provided by the SchemaCache, which is
// updated during command application in commit, but the index status is then fetched from the IndexMap, which is updated when the applier is
// closed during commit (which comes later in the commit process than command application). So we are told by the SchemaCache that an index
// exists, but we are then also told by the IndexMap that the index does not exist, hence this NotFoundException. Normally, these two are
// protected by the schema locks that are taken on index create and index status check. However, those locks are 1) incorrectly managed around
// index population, and 2) those locks are NOT TAKEN in Causal Cluster command replication!
// So we need to anticipate this, and if the race happens, we simply have to try again. But yeah, it needs to be fixed properly at some point.
appliedTransactions.add(-1L);
appliedTransactions.add(-2L);
}
};
do
{
appliedTransactions.clear();
Thread.Sleep(25);
ICollection <CoreClusterMember> cores = _cluster.coreMembers();
ICollection <ReadReplica> readReplicas = _cluster.readReplicas();
cores.forEach(awaitPopulationAndCollectionAppliedTransactionId);
readReplicas.forEach(awaitPopulationAndCollectionAppliedTransactionId);
} while (appliedTransactions.size() != 1);
}