cassandraClient.set_cql_version(asConfig.getCqlVersion());
keyspaceName = op.getKeyspace();
long now = System.nanoTime();
latency = now - startTime;
pool.addLatencySample(latency, now);
tracer.success();
}
catch (Exception e) {
long now = System.nanoTime();
latency = now - startTime;
lastException = ThriftConverter.ToConnectionPoolException(e).setLatency(latency);