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new 54df31524fa Docs: document cursor persist truncation OpenTelemetry
metrics (#1118)
54df31524fa is described below
commit 54df31524fa0da19983dcfb81c9055a1193607b9
Author: Alexandre Boyer <[email protected]>
AuthorDate: Tue Apr 21 18:44:53 2026 +0200
Docs: document cursor persist truncation OpenTelemetry metrics (#1118)
See apache/pulsar#25548.
---
docs/reference-metrics-opentelemetry.md | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/docs/reference-metrics-opentelemetry.md
b/docs/reference-metrics-opentelemetry.md
index 57ad5fca74d..c39a52d0918 100644
--- a/docs/reference-metrics-opentelemetry.md
+++ b/docs/reference-metrics-opentelemetry.md
@@ -632,6 +632,24 @@ The total amount of data read from the ledger.
* `pulsar.managed_ledger.name` - The name of the managed ledger.
* `pulsar.managed_ledger.cursor.name` - The name of the managed cursor.
+#### pulsar.broker.managed_ledger.cursor.persist.unacked_ranges.truncated
+The number of times a cursor exceeded
`managedLedgerMaxUnackedRangesToPersist`, causing ack state to be truncated at
persistence. Ack state beyond the limit is lost on broker restart.
+* Type: Counter
+* Unit: `{truncation}`
+* Attributes:
+ * `pulsar.namespace` - The topic namespace.
+ * `pulsar.managed_ledger.name` - The name of the managed ledger.
+ * `pulsar.managed_ledger.cursor.name` - The name of the managed cursor.
+
+####
pulsar.broker.managed_ledger.cursor.persist.batch_deleted_indexes.truncated
+The number of times a cursor exceeded
`managedLedgerMaxBatchDeletedIndexToPersist`, causing batch deleted index state
to be truncated at persistence. State beyond the limit is lost on broker
restart.
+* Type: Counter
+* Unit: `{truncation}`
+* Attributes:
+ * `pulsar.namespace` - The topic namespace.
+ * `pulsar.managed_ledger.name` - The name of the managed ledger.
+ * `pulsar.managed_ledger.cursor.name` - The name of the managed cursor.
+
### Managed Ledger Cache metrics
#### pulsar.broker.managed_ledger.count
