--- title: XDCR Metrics description: A list of the metrics provided by XDCR. pubDate: 2026-08-17T09:53:44.266Z antora: editUrl: https://github.com/couchbase/docs-server/edit/release/7.6/modules/metrics-reference/pages/xdcr-metrics.adoc xref: xref:7.6@server:metrics-reference:xdcr-metrics.adoc[] --- [Consult the llms.txt file for a full list of contents](/llms.txt) [View original HTML](/server/7.6/metrics-reference/xdcr-metrics.html) # XDCR Metrics > A list of the metrics provided by XDCR. The following XDCR metrics can be queried by means of the REST APIs described in [Statistics](../rest-api/rest-statistics.md). See [XDCR Metrics Cross Reference](xdcr-metrics-cross-reference.md) if you are looking for a metric name you know from an alternative supported or legacy tool. > [!TIP] > * The x.y.z badge shows the Couchbase Server version the metric was added in. > * The type / unit badge shows shows the Prometheus [type](https://prometheus.io/docs/tutorials/understanding%5Fmetric%5Ftypes/) and [unit](https://prometheus.io/docs/practices/naming/#base-units) (if present). | xdcr\_atr\_txn\_docs\_filtered\_total7.6.0counter Total number of documents filtered and not replicated because the documents were ATR documents | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | xdcr\_binary\_filtered\_total7.6.0counter Number of documents filtered that were binary documents | | xdcr\_changes\_left\_total7.0.0gauge Given the vBuckets of this node, the number of sequence numbers that need to be processed (either replicated or handled) before catching up to the high sequence numbers for the vBuckets | | xdcr\_client\_txn\_docs\_filtered\_total7.6.0counter Total number of documents filtered and not replicated because the documents were transaction client records | | xdcr\_data\_replicated\_bytes7.0.0counter / bytes Amount of data replicated for a Replication | | xdcr\_data\_replicated\_uncompress\_bytes7.0.0counter / bytes Theoretical amount of data replicated for a Replication if compression were not used | | xdcr\_datapool\_failed\_gets\_total7.0.0counter The total number of failed GET() operation on a reusable datapool within XDCR for the purpose of avoiding garbage generation | | xdcr\_dcp\_datach\_length\_total7.0.0gauge The number of items sent by the Data Service waiting for the XDCR Source Nozzle to ingest and process | | xdcr\_dcp\_dispatch\_time\_seconds7.0.0gauge / seconds The rolling average amount of time it takes for a document to be received by XDCR from the Data Service, to the time it is queued up in the Target Nozzle ready to be sent | | xdcr\_deletion\_cloned\_total7.2.1counter The number of times a Source Deletion or Expiration is cloned to be written to multiple Target Namespaces | | xdcr\_deletion\_docs\_written\_total7.0.0counter Number of Deletions written to Target | | xdcr\_deletion\_failed\_cr\_source\_total7.0.0counter Number of Deletions that failed Source-side Conflict Resolution | | xdcr\_deletion\_failed\_cr\_target\_total7.1.0counter Number of Deletions that failed Conflict Resolution at the Target | | xdcr\_deletion\_filtered\_total7.0.0counter Number of Deletions that were filtered Source-side | | xdcr\_deletion\_received\_from\_dcp\_total7.0.0counter Number of Deletions received from the Data Service | | xdcr\_docs\_cas\_poisoned\_total7.6.3counter Total number of documents not replicated because cas is beyond acceptable drift threshold | | xdcr\_docs\_checked\_total7.0.0gauge Across vBuckets for this node, the sum of all sequence numbers that have been considered to be checkpointed | | xdcr\_docs\_cloned\_total7.0.0counter Number of Source Document Mutation cloned to be written to different Target Namespaces | | xdcr\_docs\_compression\_skipped\_total7.6.6counter Total number of documents whose compression was skipped before replication, due to a larger snappy-compressed size | | xdcr\_docs\_failed\_cr\_source\_total7.0.0counter Number of documents (or tombstones) that were not replicated to the Target due to Conflict Resolution evaluated on the Source | | xdcr\_docs\_failed\_cr\_target\_total7.1.0counter Number of documents failed Conflict Resolution at the Target | | xdcr\_docs\_filtered\_on\_txn\_xattr\_total7.6.0counter Total number of documents filtered and not replicated due to the presence of transaction related xattrs in it | | xdcr\_docs\_filtered\_on\_user\_defined\_filter\_total7.6.0counter Total number of documents filtered and not replicated because of user defined filter expressions | | xdcr\_docs\_filtered\_total7.0.0gauge Total number of documents filtered and not replicated due to any type of filtering | | xdcr\_docs\_opt\_repd\_total7.0.0counter Number of Documents Optimistically Replicated to the Target Cluster | | xdcr\_docs\_processed\_total7.0.0gauge Number of Documents processed for a Replication | | xdcr\_docs\_received\_from\_dcp\_total7.0.0counter Number of Document Mutations received from the Data Service | | xdcr\_docs\_sent\_with\_subdoc\_delete\_total7.6.6counter The number of deletes issued using subdoc command instead of delete\_with\_meta to avoid cas rollback on target | | xdcr\_docs\_sent\_with\_subdoc\_set\_total7.6.6counter The number of sets issued using subdoc command instead of set\_with\_meta to avoid cas rollback on target | | xdcr\_docs\_unable\_to\_filter\_total7.0.0gauge Number of Document Mutations that couldn't be filtered due to inability to parse the document through Advanced Filtering engine and were not replicated | | xdcr\_docs\_written\_total7.0.0counter Number of docs Document Mutations written/sent to the Target | | xdcr\_expiry\_docs\_written\_total7.0.0counter Number of Expirations written to the Target | | xdcr\_expiry\_failed\_cr\_source\_total7.0.0counter Number of Expirations that failed Source-side Conflict Resolution | | xdcr\_expiry\_failed\_cr\_target\_total7.1.0counter Number of Expirations that failed Conflict Resolution at the Target | | xdcr\_expiry\_filtered\_total7.0.0counter Number of Expirations filtered Source-side | | xdcr\_expiry\_received\_from\_dcp\_total7.0.0counter Number of Expirations or documents with TTL received from the Data Service | | xdcr\_expiry\_stripped\_total7.0.0counter Number of Document Mutations replicated that had the TTL changed to 0 before writing to Target (Source is unmodified) | | xdcr\_guardrail\_data\_size\_total7.6.0counter The number of writes that target rejected because each target data node is holding too much data | | xdcr\_guardrail\_disk\_space\_total7.6.0counter The number of writes that target rejected because a data node is running out of disk space | | xdcr\_guardrail\_resident\_ratio\_total7.6.0counter The number of writes that target rejected due to the target bucket being under the resident ratio threshold | | xdcr\_hlv\_pruned\_at\_merge\_total7.6.6counter Number of mutations with HLV pruned when it is merged with target document | | xdcr\_hlv\_pruned\_total7.6.6counter Number of mutations with HLV pruned | | xdcr\_hlv\_updated\_total7.6.6counter Number of mutations with HLV updated | | xdcr\_import\_docs\_failed\_cr\_source\_total7.6.6counter Number of mobile import mutations failed Source side Conflict Resolution. This is only counted in LWW buckets when enableCrossClusterVersioning is true | | xdcr\_import\_docs\_written\_total7.6.6counter Number of import mutations sent | | xdcr\_mobile\_docs\_filtered\_total7.6.0counter Total number of documents filtered and not replicated because the documents were mobile records | | xdcr\_num\_checkpoints\_total7.0.0counter The number of times checkpoint operation has completed successfully since this XDCR process instance is made aware of this replication | | xdcr\_num\_failedckpts\_total7.0.0counter The number of times checkpoint operation has encountered an error since this XDCR process instance is made aware of this replication | | xdcr\_pipeline\_errors7.6.0gauge The number of currently present errors for a specific Replication Pipeline | | xdcr\_pipeline\_status7.6.0gauge The pipeline status for a specific pipeline, where it could be paused, running or, error | | xdcr\_resp\_wait\_time\_seconds7.0.0gauge / seconds The rolling average amount of time it takes from when a MemcachedRequest is created to be ready to route to an outnozzle to the time that the response has been heard back from the target node after a successful write | | xdcr\_seqno\_adv\_received\_from\_dcp\_total7.6.0counter The number of seqno advance events received from source data service | | xdcr\_set\_docs\_written\_total7.0.0counter Number of Set operations successfully written to the Target | | xdcr\_set\_failed\_cr\_target\_total7.1.0counter Number of Set operations that failed Conflict Resolution at the Target | | xdcr\_set\_filtered\_total7.0.0counter Number of documents filtered that was of a DCP mutation | | xdcr\_set\_received\_from\_dcp\_total7.0.0counter Number of Sets received from the Data Service | | xdcr\_size\_rep\_queue\_bytes7.0.0gauge / bytes Amount of data being queued to be sent in a Target Nozzle | | xdcr\_source\_sync\_xattr\_removed\_total7.6.6counter Number of mutations with source mobile extended attributes removed | | xdcr\_system\_events\_received\_from\_dcp\_total7.6.0counter The number of system events received from source data service | | xdcr\_target\_eaccess\_total7.6.0counter The total number of EACCESS errors returned from the target node. | | xdcr\_target\_sync\_xattr\_preserved\_total7.6.6counter Number of mutations with target mobile extended attributes preserved | | xdcr\_target\_tmpfail\_total7.6.0counter The total number of TMPFAIL errors returned from the target node. | | xdcr\_target\_unknown\_status\_total7.6.0counter The total number of writes to target data service that returned with a status code that XDCR cannot comprehend | | xdcr\_throttle\_latency\_seconds7.0.0gauge / seconds The rolling average of the latency time introduced due to bandwith throttler | | xdcr\_throughput\_throttle\_latency\_seconds7.0.0gauge / seconds The rolling average of the latency time introduced due to throughput throttler | | xdcr\_time\_committing\_seconds7.0.0gauge / seconds The rolling average amount of time it takes for a checkpoint operation to complete | | xdcr\_wtavg\_docs\_latency\_seconds7.0.0gauge / seconds The rolling average amount of time it takes for the source cluster to receive the acknowledgement of a SET\_WITH\_META response after the Memcached request has been composed to be processed by the XDCR Target Nozzle | | xdcr\_wtavg\_meta\_latency\_seconds7.0.0gauge / seconds The rolling average amount of time it takes once a getMeta command is composed to be sent to the time the request is handled once the target node has responded |