/// <summary>
/// Performs feature checks when a new default connection is established.
/// </summary>
private void OnNewDefaultConnection()
{
if (_config.EnablePartitionAwareness && !_socket.Features.HasOp(ClientOp.CachePartitions))
{
_config.EnablePartitionAwareness = false;
_logger.Warn("Partition awareness has been disabled: server protocol version {0} " +
"is lower than required {1}",
_socket.ServerVersion,
ClientFeatures.GetMinVersion(ClientOp.CachePartitions)
);
}
if (!_socket.Features.HasFeature(ClientBitmaskFeature.ClusterGroupGetNodesEndpoints))
{
_enableDiscovery = false;
_logger.Warn("Automatic server node discovery is not supported by the server");
}
}
/// <summary>
/// Performs initial checks when the first connection to the cluster has been established.
/// </summary>
private void OnFirstConnect()
{
if (_config.EnablePartitionAwareness && !_socket.Features.HasOp(ClientOp.CachePartitions))
{
_config.EnablePartitionAwareness = false;
_logger.Warn("Partition awareness has been disabled: server protocol version {0} " +
"is lower than required {1}",
_socket.ServerVersion,
ClientFeatures.GetMinVersion(ClientOp.CachePartitions)
);
}
if (!_socket.Features.HasFeature(ClientBitmaskFeature.ClusterGroupGetNodesEndpoints))
{
_enableDiscovery = false;
_logger.Warn("Automatic server node discovery is not supported by the server");
}
if (_socket.Features.HasFeature(ClientBitmaskFeature.BinaryConfiguration))
{
var serverBinaryCfg = _socket.DoOutInOp(
ClientOp.BinaryConfigurationGet,
ctx => { },
ctx => new BinaryConfigurationClientInternal(ctx.Reader.Stream));
_logger.Debug("Server binary configuration retrieved: " + serverBinaryCfg);
if (serverBinaryCfg.CompactFooter && !_marsh.CompactFooter)
{
// Changing from full to compact is not safe: some clients do not support compact footers.
// Log information, but don't change the configuration.
_logger.Info("BinaryConfiguration.CompactFooter is true on the server, but false on the client." +
"Consider enabling this setting to reduce cache entry size.");
}
if (!serverBinaryCfg.CompactFooter && _marsh.CompactFooter)
{
// Changing from compact to full footer is safe, do it automatically.
_marsh.CompactFooter = false;
if (_config.BinaryConfiguration == null)
{
_config.BinaryConfiguration = new BinaryConfiguration();
}
_config.BinaryConfiguration.CompactFooter = false;
_logger.Info("BinaryConfiguration.CompactFooter set to false on client " +
"according to server configuration.");
}
var localNameMapperMode = GetLocalNameMapperMode();
if (localNameMapperMode != serverBinaryCfg.NameMapperMode)
{
_logger.Warn("Binary name mapper mismatch: local={0}, server={1}",
localNameMapperMode, serverBinaryCfg.NameMapperMode);
}
}
}