make cassandra driver thread count configurable

This commit is contained in:
CJ Cobb
2021-03-26 08:42:23 -04:00
parent 0d11898730
commit df8b6f15d9

View File

@@ -1192,13 +1192,15 @@ CassandraBackend::open()
cass_cluster_set_credentials(
cluster, username.c_str(), getString("password").c_str());
}
int threads = config_.contains("threads")
? config_["threads"].as_int64()
: std::thread::hardware_concurrency();
unsigned int const workers = std::thread::hardware_concurrency();
rc = cass_cluster_set_num_threads_io(cluster, workers);
rc = cass_cluster_set_num_threads_io(cluster, threads);
if (rc != CASS_OK)
{
std::stringstream ss;
ss << "nodestore: Error setting Cassandra io threads to " << workers
ss << "nodestore: Error setting Cassandra io threads to " << threads
<< ", result: " << rc << ", " << cass_error_desc(rc);
throw std::runtime_error(ss.str());
}