update ticdc alert rule (#13812) (#14192)

ticdc/ticdc-alert-rules.md

@@ -16,7 +16,7 @@ For critical alerts, you need to pay close attention to abnormal monitoring metr
 
 - Alert rule:
 
-    (time() - ticdc_processor_checkpoint_ts / 1000) > 600
+    (time() - ticdc_owner_checkpoint_ts / 1000) > 600
 
 - Description:
 
@@ -30,7 +30,7 @@ For critical alerts, you need to pay close attention to abnormal monitoring metr
 
 - Alert rule:
 
-    (time() - ticdc_processor_resolved_ts / 1000) > 300
+    (time() - ticdc_owner_resolved_ts / 1000) > 300
 
 - Description:
 
@@ -72,25 +72,11 @@ Warning alerts are a reminder for an issue or error.
 
     Collect TiCDC logs to locate the root cause.
 
-### `ticdc_mounter_unmarshal_and_mount_time_more_than_1s`
+### `cdc_sink_flush_duration_time_more_than_10s`
 
 - Alert rule:
 
-`histogram_quantile(0.9, rate(ticdc_mounter_unmarshal_and_mount_bucket[1m])) * 1000 > 1000`
-
-- Description:
-
-    It takes a replication task more than 1 second to unmarshal the data changes.
-
-- Solution:
-
-    Collect TiCDC logs to locate the root cause.
-
-### `cdc_sink_execute_duration_time_more_than_10s`
-
-- Alert rule:
-
-    `histogram_quantile(0.9, rate(ticdc_sink_txn_exec_duration_bucket[1m])) > 10`
+    `histogram_quantile(0.9, rate(ticdc_sink_txn_worker_flush_duration[1m])) > 10`
 
 - Description: