cassandra: Use a local monotonic timestamp generator.

Otherwise we run into race conditions on server side timestamps, which cause
problems.

diff --git a/src/lib-sql/driver-cassandra.c b/src/lib-sql/driver-cassandra.c
index 73ed2f5cd75cb001869c24ff45d7b463d36c4c9b..88e7115b6c5970096be99251889ab2c69cac9635 100644 (file)
--- a/src/lib-sql/driver-cassandra.c
+++ b/src/lib-sql/driver-cassandra.c
@@ -42,6 +42,7 @@ struct cassandra_db {
 
        CassCluster *cluster;
        CassSession *session;
+       CassTimestampGen *timestamp_gen;
 
        int fd_pipe[2];
        struct io *io_pipe;
@@ -408,7 +409,9 @@ static struct sql_db *driver_cassandra_init_v(const char *connect_string)
        } T_END;
        cass_log_set_level(db->log_level);
 
+       db->timestamp_gen = cass_timestamp_gen_server_side_new();
        db->cluster = cass_cluster_new();
+       cass_cluster_set_timestamp_gen(db->cluster, db->timestamp_gen);
        cass_cluster_set_connect_timeout(db->cluster, SQL_CONNECT_TIMEOUT_SECS * 1000);
        cass_cluster_set_request_timeout(db->cluster, SQL_QUERY_TIMEOUT_SECS * 1000);
        cass_cluster_set_contact_points(db->cluster, db->hosts);
@@ -431,6 +434,7 @@ static void driver_cassandra_deinit_v(struct sql_db *_db)
 
        cass_session_free(db->session);
        cass_cluster_free(db->cluster);
+       cass_timestamp_gen_free(db->timestamp_gen);
        i_free(db->hosts);
        i_free(db->error);
        i_free(db->keyspace);