Lower default num_tokens to 16 (CASSANDRA-13701)
diff --git a/build-scripts/cassandra-dtest-pytest.sh b/build-scripts/cassandra-dtest-pytest.sh
index 069a868..d985e7d 100755
--- a/build-scripts/cassandra-dtest-pytest.sh
+++ b/build-scripts/cassandra-dtest-pytest.sh
@@ -18,7 +18,7 @@
export CCM_MAX_HEAP_SIZE="1024M"
export CCM_HEAP_NEWSIZE="512M"
export CCM_CONFIG_DIR=${WORKSPACE}/.ccm
-export NUM_TOKENS="32"
+export NUM_TOKENS="16"
export CASSANDRA_DIR=${WORKSPACE}
#Have Cassandra skip all fsyncs to improve test performance and reliability
export CASSANDRA_SKIP_SYNC=true