test(perf): tolerate empty paired runner node args (#5275)

Co-authored-by: heihutu <heihutu@gmail.com>

scripts/run_pinned_paired_abba_bench.sh

@@ -243,21 +243,18 @@ build_runner_cmd_for_product() {
   local bucket="$3"
   local leg_out_dir="$4"
   local endpoint image_ref image_digest revision_or_release ack_contract
-  local -a node_args
   if [[ "$product" == "rustfs" ]]; then
     endpoint="$RUSTFS_ENDPOINT"
     image_ref="$RUSTFS_IMAGE_REF"
     image_digest="$RUSTFS_IMAGE_DIGEST"
     revision_or_release="$RUSTFS_REVISION"
     ack_contract="$RUSTFS_ACK_CONTRACT"
-    node_args=("${RUSTFS_NODE_ARGS[@]}")
   else
     endpoint="$MINIO_ENDPOINT"
     image_ref="$MINIO_IMAGE_REF"
     image_digest="$MINIO_IMAGE_DIGEST"
     revision_or_release="$MINIO_RELEASE"
     ack_contract="$MINIO_ACK_CONTRACT"
-    node_args=("${MINIO_NODE_ARGS[@]}")
   fi
 
   RUNNER_CMD=(
@@ -286,7 +283,14 @@ build_runner_cmd_for_product() {
     --bucket "$bucket" \
     --out-dir "$leg_out_dir"
   )
-  RUNNER_CMD+=("${COMMON_LABELS[@]}" "${node_args[@]}")
+  if ((${#COMMON_LABELS[@]} > 0)); then
+    RUNNER_CMD+=("${COMMON_LABELS[@]}")
+  fi
+  if [[ "$product" == "rustfs" && ${#RUSTFS_NODE_ARGS[@]} -gt 0 ]]; then
+    RUNNER_CMD+=("${RUSTFS_NODE_ARGS[@]}")
+  elif [[ "$product" == "minio" && ${#MINIO_NODE_ARGS[@]} -gt 0 ]]; then
+    RUNNER_CMD+=("${MINIO_NODE_ARGS[@]}")
+  fi
   if [[ "$DRY_RUN" == "true" ]]; then
     RUNNER_CMD+=(--dry-run)
   fi

scripts/test_pinned_paired_abba_bench.sh

@@ -34,6 +34,26 @@ if "$RUNNER" \
   exit 1
 fi
 
+"$RUNNER" \
+  --access-key minioadmin \
+  --secret-key minioadmin \
+  --rustfs-endpoint http://127.0.0.1:9000 \
+  --rustfs-image-ref rustfs/rustfs:bench \
+  --rustfs-image-digest sha256:0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef \
+  --rustfs-revision 42fc84063 \
+  --rustfs-ack-contract relaxed \
+  --minio-endpoint http://127.0.0.1:9100 \
+  --minio-image-ref quay.io/minio/minio:RELEASE.2025-07-18T21-56-31Z \
+  --minio-image-digest sha256:1111222233334444111122223333444411112222333344441111222233334444 \
+  --minio-release RELEASE.2025-07-18T21-56-31Z \
+  --minio-ack-contract strict \
+  --concurrencies 1 \
+  --sizes 1048576B \
+  --rounds-per-leg 1 \
+  --cooldown-secs 0 \
+  --out-dir "$TMP_DIR/good-no-optional-arrays" \
+  --dry-run >"$TMP_DIR/dry-run-no-optional-arrays.log"
+
 "$RUNNER" \
   --access-key minioadmin \
   --secret-key minioadmin \