Add RocksDB Table Reader Usage Metric

The metric is called blaze_rocksdb_table_reader_usage_bytes.

.github/scripts/test-metrics.sh

@@ -0,0 +1,20 @@
+#!/bin/bash -e
+
+SCRIPT_DIR="$(dirname "$(readlink -f "$0")")"
+. "$SCRIPT_DIR/util.sh"
+
+URL="http://localhost:8081/metrics"
+
+num-metrics() {
+  NAME="$1"
+  FILTER="$2"
+  curl -s "$URL" | grep "$NAME" | grep -c "$FILTER"
+}
+
+test "blaze_rocksdb_block_cache_data_miss index" "$(num-metrics "blaze_rocksdb_block_cache_data_miss" "name=\"index\"")" "1"
+test "blaze_rocksdb_block_cache_data_miss transaction" "$(num-metrics "blaze_rocksdb_block_cache_data_miss" "name=\"transaction\"")" "1"
+test "blaze_rocksdb_block_cache_data_miss resource" "$(num-metrics "blaze_rocksdb_block_cache_data_miss" "name=\"resource\"")" "1"
+
+test "blaze_rocksdb_table_reader_usage_bytes index" "$(num-metrics "blaze_rocksdb_table_reader_usage_bytes" "name=\"index\"")" "14"
+test "blaze_rocksdb_table_reader_usage_bytes transaction" "$(num-metrics "blaze_rocksdb_table_reader_usage_bytes" "name=\"transaction\"")" "1"
+test "blaze_rocksdb_table_reader_usage_bytes resource" "$(num-metrics "blaze_rocksdb_table_reader_usage_bytes" "name=\"resource\"")" "1"

.github/workflows/build.yml

@@ -588,7 +588,7 @@ jobs:
       run: curl -f --head http://localhost:8080/health
 
     - name: Prometheus Metrics
-      run: curl -f http://localhost:8081/metrics
+      run: .github/scripts/test-metrics.sh
 
     - name: Not Acceptable
       run: .github/scripts/not-acceptable.sh