fix: add MarkCacheBytes to SystemMetrics query mapping

Victor-Davidescu · Victor-Davidescu · commit 46b9619b8862 · 2026-05-12T15:58:40.000+01:00
diff --git a/clickhouse/changelog.d/23677.fixed b/clickhouse/changelog.d/23677.fixed
@@ -0,0 +1 @@
+Add MarkCacheBytes to SystemMetrics query mapping for ClickHouse 25.x+ compatibility, where the metric was moved from system.asynchronous_metrics to system.metrics.
diff --git a/clickhouse/datadog_checks/clickhouse/queries.py b/clickhouse/datadog_checks/clickhouse/queries.py
@@ -181,6 +181,7 @@
                 'LocalThreadScheduled': {'name': 'thread.local.scheduled', 'type': 'gauge'},
                 'MMappedFileBytes': {'name': 'mmapped.file.size', 'type': 'gauge'},
                 'MMappedFiles': {'name': 'mmapped.file.current', 'type': 'gauge'},
+                'MarkCacheBytes': {'name': 'table.mergetree.storage.mark.cache', 'type': 'gauge'},
                 'MarksLoaderThreads': {'name': 'threads.marks_loader.total', 'type': 'gauge'},
                 'MarksLoaderThreadsActive': {'name': 'threads.marks_loader.active', 'type': 'gauge'},
                 'MarksLoaderThreadsScheduled': {'name': 'threads.marks_loader.scheduled', 'type': 'gauge'},

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	`+Add MarkCacheBytes to SystemMetrics query mapping for ClickHouse 25.x+ compatibility, where the metric was moved from system.asynchronous_metrics to system.metrics.`