elek commented on a change in pull request #2074:
URL: https://github.com/apache/ozone/pull/2074#discussion_r599611346
##########
File path:
hadoop-hdds/framework/src/main/java/org/apache/hadoop/hdds/server/http/PrometheusMetricsSink.java
##########
@@ -64,43 +66,48 @@ public void putMetrics(MetricsRecord metricsRecord) {
String key = prometheusName(
metricsRecord.name(), metrics.name());
- StringBuilder builder = new StringBuilder();
- builder.append("# TYPE ")
- .append(key)
- .append(" ")
- .append(metrics.type().toString().toLowerCase())
- .append("\n");
-
- StringBuilder prometheusMetricKey = new StringBuilder();
- prometheusMetricKey.append(key)
- .append("{");
- String sep = "";
-
- //add tags
- for (MetricsTag tag : metricsRecord.tags()) {
- String tagName = tag.name().toLowerCase();
-
- //ignore specific tag which includes sub-hierarchy
- if (!tagName.equals("numopenconnectionsperuser")) {
- prometheusMetricKey.append(sep)
- .append(tagName)
- .append("=\"")
- .append(tag.value())
- .append("\"");
- sep = ",";
- }
+ String prometheusMetricKeyAsString =
+ getPrometheusMetricKeyAsString(metricsRecord, key);
+
+ String metricKey = "# TYPE "
+ + key
+ + " "
+ + metrics.type().toString().toLowerCase();
+
+ if (!metricLines.containsKey(metricKey)){
+ metricLines.put(metricKey, new TreeMap<>());
Review comment:
```suggestion
metricLines.put(metricKey, Collections.synchronizedSortedMap(new
TreeMap<>()));
```
Fix me if I am wrong, but I think the sub maps should also be synchronized.
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