# Storage Metrics | Name | Unit | Description | | --- | --- | --- | | vds.datastored.alldisks.buckets | bucket | Number of buckets managed | | vds.datastored.alldisks.docs | document | Number of documents stored | | vds.datastored.alldisks.bytes | byte | Number of bytes stored | | vds.datastored.alldisks.activebuckets | bucket | Number of active buckets on the node | | vds.datastored.alldisks.readybuckets | bucket | Number of ready buckets on the node | | vds.visitor.allthreads.averagevisitorlifetime | millisecond | Average lifetime of a visitor | | vds.visitor.allthreads.averagequeuewait | millisecond | Average time an operation spends in input queue. | | vds.visitor.allthreads.queuesize | operation | Size of input message queue. | | vds.visitor.allthreads.completed | operation | Number of visitors completed | | vds.visitor.allthreads.created | operation | Number of visitors created. | | vds.visitor.allthreads.failed | operation | Number of visitors failed | | vds.visitor.allthreads.averagemessagesendtime | millisecond | Average time it takes for messages to be sent to their target (and be replied to) | | vds.visitor.allthreads.averageprocessingtime | millisecond | Average time used to process visitor requests | | vds.visitor.allthreads.aborted | instance | Number of visitors aborted. | | vds.visitor.allthreads.averagevisitorcreationtime | millisecond | Average time spent creating a visitor instance | | vds.visitor.allthreads.destination\_failure\_replies | instance | Number of failure replies received from the visitor destination | | vds.filestor.queuesize | operation | Size of input message queue. | | vds.filestor.averagequeuewait | millisecond | Average time an operation spends in input queue. | | vds.filestor.active\_operations.size | operation | Number of concurrent active operations | | vds.filestor.active\_operations.latency | millisecond | Latency (in ms) for completed operations | | vds.filestor.throttle\_window\_size | operation | Current size of async operation throttler window size | | vds.filestor.throttle\_waiting\_threads | thread | Number of threads waiting to acquire a throttle token | | vds.filestor.throttle\_active\_tokens | instance | Current number of active throttle tokens | | vds.filestor.allthreads.mergemetadatareadlatency | millisecond | Time spent in a merge step to check metadata of current node to see what data it has. | | vds.filestor.allthreads.mergedatareadlatency | millisecond | Time spent in a merge step to read data other nodes need. | | vds.filestor.allthreads.mergedatawritelatency | millisecond | Time spent in a merge step to write data needed to current node. | | vds.filestor.allthreads.mergeavgdatareceivedneeded | byte | Amount of data transferred from previous node in chain that we needed to apply locally. | | vds.filestor.allthreads.mergebuckets.count | request | Number of requests processed. | | vds.filestor.allthreads.mergebuckets.failed | request | Number of failed requests. | | vds.filestor.allthreads.mergebuckets.latency | millisecond | Latency of successful requests. | | vds.filestor.allthreads.mergelatencytotal | millisecond | Latency of total merge operation, from master node receives it, until merge is complete and master node replies. | | vds.filestor.allthreads.merge\_put\_latency | millisecond | Latency of individual puts that are part of merge operations | | vds.filestor.allthreads.merge\_remove\_latency | millisecond | Latency of individual removes that are part of merge operations | | vds.filestor.allstripes.throttled\_rpc\_direct\_dispatches | instance | Number of times an RPC thread could not directly dispatch an async operation directly to Proton because it was disallowed by the throttle policy | | vds.filestor.allstripes.throttled\_persistence\_thread\_polls | instance | Number of times a persistence thread could not immediately dispatch a queued async operation because it was disallowed by the throttle policy | | vds.filestor.allstripes.timeouts\_waiting\_for\_throttle\_token | instance | Number of times a persistence thread timed out waiting for an available throttle policy token | | vds.filestor.allstripes.averagequeuewait | millisecond | Average time an operation spends in input queue. | | vds.filestor.allthreads.put.count | operation | Number of requests processed. | | vds.filestor.allthreads.put.failed | operation | Number of failed requests. | | vds.filestor.allthreads.put.test\_and\_set\_failed | operation | Number of operations that were skipped due to a test-and-set condition not met | | vds.filestor.allthreads.put.latency | millisecond | Latency of successful requests. | | vds.filestor.allthreads.put.request\_size | byte | Size of requests, in bytes | | vds.filestor.allthreads.remove.count | operation | Number of requests processed. | | vds.filestor.allthreads.remove.failed | operation | Number of failed requests. | | vds.filestor.allthreads.remove.test\_and\_set\_failed | operation | Number of operations that were skipped due to a test-and-set condition not met | | vds.filestor.allthreads.remove.latency | millisecond | Latency of successful requests. | | vds.filestor.allthreads.remove.request\_size | byte | Size of requests, in bytes | | vds.filestor.allthreads.remove.not\_found | request | Number of requests that could not be completed due to source document not found. | | vds.filestor.allthreads.get.count | operation | Number of requests processed. | | vds.filestor.allthreads.get.failed | operation | Number of failed requests. | | vds.filestor.allthreads.get.latency | millisecond | Latency of successful requests. | | vds.filestor.allthreads.get.request\_size | byte | Size of requests, in bytes | | vds.filestor.allthreads.get.not\_found | request | Number of requests that could not be completed due to source document not found. | | vds.filestor.allthreads.update.count | request | Number of requests processed. | | vds.filestor.allthreads.update.failed | request | Number of failed requests. | | vds.filestor.allthreads.update.test\_and\_set\_failed | request | Number of requests that were skipped due to a test-and-set condition not met | | vds.filestor.allthreads.update.latency | millisecond | Latency of successful requests. | | vds.filestor.allthreads.update.request\_size | byte | Size of requests, in bytes | | vds.filestor.allthreads.update.latency\_read | millisecond | Latency of the source read in the request. | | vds.filestor.allthreads.update.not\_found | request | Number of requests that could not be completed due to source document not found. | | vds.filestor.allthreads.createiterator.count | request | Number of requests processed. | | vds.filestor.allthreads.createiterator.latency | millisecond | Latency of successful requests. | | vds.filestor.allthreads.createiterator.failed | request | Number of failed requests. | | vds.filestor.allthreads.visit.count | request | Number of requests processed. | | vds.filestor.allthreads.visit.latency | millisecond | Latency of successful requests. | | vds.filestor.allthreads.visit.docs | document | Number of entries read per iterate call | | vds.filestor.allthreads.visit.failed | request | Number of failed requests. | | vds.filestor.allthreads.remove\_location.count | request | Number of requests processed. | | vds.filestor.allthreads.remove\_location.latency | millisecond | Latency of successful requests. | | vds.filestor.allthreads.remove\_location.failed | request | Number of failed requests. | | vds.filestor.allthreads.splitbuckets.count | request | Number of requests processed. | | vds.filestor.allthreads.splitbuckets.failed | request | Number of failed requests. | | vds.filestor.allthreads.splitbuckets.latency | request | Latency of successful requests. | | vds.filestor.allthreads.joinbuckets.count | request | Number of requests processed. | | vds.filestor.allthreads.joinbuckets.failed | request | Number of failed requests. | | vds.filestor.allthreads.joinbuckets.latency | millisecond | Latency of successful requests. | | vds.filestor.allthreads.deletebuckets.count | request | Number of requests processed. | | vds.filestor.allthreads.deletebuckets.failed | request | Number of failed requests. | | vds.filestor.allthreads.deletebuckets.latency | millisecond | Latency of successful requests. | | vds.filestor.allthreads.remove\_by\_gid.count | request | Number of requests processed. | | vds.filestor.allthreads.remove\_by\_gid.failed | request | Number of failed requests. | | vds.filestor.allthreads.remove\_by\_gid.latency | millisecond | Latency of successful requests. | | vds.filestor.allthreads.setbucketstates.count | request | Number of requests processed. | | vds.filestor.allthreads.setbucketstates.failed | request | Number of failed requests. | | vds.filestor.allthreads.setbucketstates.latency | millisecond | Latency of successful requests. | | vds.mergethrottler.averagequeuewaitingtime | millisecond | Time merges spent in the throttler queue | | vds.mergethrottler.queuesize | instance | Length of merge queue | | vds.mergethrottler.active\_window\_size | instance | Number of merges active within the pending window size | | vds.mergethrottler.estimated\_merge\_memory\_usage | byte | An estimated upper bound of the memory usage (in bytes) of the merges currently in the active window | | vds.mergethrottler.bounced\_due\_to\_back\_pressure | instance | Number of merges bounced due to resource exhaustion back-pressure | | vds.mergethrottler.locallyexecutedmerges.ok | instance | The number of successful merges for 'locallyexecutedmerges' | | vds.mergethrottler.locallyexecutedmerges.failures.aborted | operation | The number of merges that failed because the storage node was (most likely) shutting down | | vds.mergethrottler.locallyexecutedmerges.failures.bucketnotfound | operation | The number of operations that failed because the bucket did not exist | | vds.mergethrottler.locallyexecutedmerges.failures.busy | operation | The number of merges that failed because the storage node was busy | | vds.mergethrottler.locallyexecutedmerges.failures.exists | operation | The number of merges that were rejected due to a merge operation for their bucket already being processed | | vds.mergethrottler.locallyexecutedmerges.failures.notready | operation | The number of merges discarded because distributor was not ready | | vds.mergethrottler.locallyexecutedmerges.failures.other | operation | The number of other failures | | vds.mergethrottler.locallyexecutedmerges.failures.rejected | operation | The number of merges that were rejected | | vds.mergethrottler.locallyexecutedmerges.failures.timeout | operation | The number of merges that failed because they timed out towards storage | | vds.mergethrottler.locallyexecutedmerges.failures.total | operation | Sum of all failures | | vds.mergethrottler.locallyexecutedmerges.failures.wrongdistribution | operation | The number of merges that were discarded (flushed) because they were initiated at an older cluster state than the current | | vds.mergethrottler.mergechains.ok | operation | The number of successful merges for 'mergechains' | | vds.mergethrottler.mergechains.failures.busy | operation | The number of merges that failed because the storage node was busy | | vds.mergethrottler.mergechains.failures.total | operation | Sum of all failures | | vds.mergethrottler.mergechains.failures.exists | operation | The number of merges that were rejected due to a merge operation for their bucket already being processed | | vds.mergethrottler.mergechains.failures.notready | operation | The number of merges discarded because distributor was not ready | | vds.mergethrottler.mergechains.failures.other | operation | The number of other failures | | vds.mergethrottler.mergechains.failures.rejected | operation | The number of merges that were rejected | | vds.mergethrottler.mergechains.failures.timeout | operation | The number of merges that failed because they timed out towards storage | | vds.mergethrottler.mergechains.failures.wrongdistribution | operation | The number of merges that were discarded (flushed) because they were initiated at an older cluster state than the current | | vds.server.network.tls-handshakes-failed | operation | Number of client or server connection attempts that failed during TLS handshaking | | vds.server.network.peer-authorization-failures | failure | Number of TLS connection attempts failed due to bad or missing peer certificate credentials | | vds.server.network.client.tls-connections-established | connection | Number of secure mTLS connections established | | vds.server.network.server.tls-connections-established | connection | Number of secure mTLS connections established | | vds.server.network.client.insecure-connections-established | connection | Number of insecure (plaintext) connections established | | vds.server.network.server.insecure-connections-established | connection | Number of insecure (plaintext) connections established | | vds.server.network.tls-connections-broken | connection | Number of TLS connections broken due to failures during frame encoding or decoding | | vds.server.network.failed-tls-config-reloads | failure | Number of times background reloading of TLS config has failed | | vds.bouncer.unavailable\_node\_aborts | operation | Number of operations that were aborted due to the node (or target bucket space) being unavailable | | vds.changedbucketownershiphandler.avg\_abort\_processing\_time | millisecond | Average time spent aborting operations for changed buckets | | vds.changedbucketownershiphandler.external\_load\_ops\_aborted | operation | Number of outdated external load operations aborted | | vds.changedbucketownershiphandler.ideal\_state\_ops\_aborted | operation | Number of outdated ideal state operations aborted | | vds.communication.bucket\_space\_mapping\_failures | operation | Number of messages that could not be resolved to a known bucket space | | vds.communication.convertfailures | operation | Number of messages that failed to get converted to storage API messages | | vds.communication.exceptionmessageprocesstime | millisecond | Time transport thread uses to process a single message that fails with an exception thrown into communication manager | | vds.communication.messageprocesstime | millisecond | Time transport thread uses to process a single message | | vds.communication.messagequeue | item | Size of input message queue. | | vds.communication.sendcommandlatency | millisecond | Average ms used to send commands to MBUS | | vds.communication.sendreplylatency | millisecond | Average ms used to send replies to MBUS | | vds.communication.toolittlememory | operation | Number of messages failed due to too little memory available | | vds.datastored.bucket\_space.active\_buckets | bucket | Number of active buckets in the bucket space | | vds.datastored.bucket\_space.bucket\_db.memory\_usage.allocated\_bytes | byte | The number of allocated bytes | | vds.datastored.bucket\_space.bucket\_db.memory\_usage.dead\_bytes | byte | The number of dead bytes (\<= used\_bytes) | | vds.datastored.bucket\_space.bucket\_db.memory\_usage.onhold\_bytes | byte | The number of bytes on hold | | vds.datastored.bucket\_space.bucket\_db.memory\_usage.used\_bytes | byte | The number of used bytes (\<= allocated\_bytes) | | vds.datastored.bucket\_space.buckets\_total | bucket | Total number buckets present in the bucket space (ready + not ready) | | vds.datastored.bucket\_space.entries | document | Number of entries (documents + tombstones) stored in the bucket space | | vds.datastored.bucket\_space.bytes | byte | Bytes stored across all documents in the bucket space | | vds.datastored.bucket\_space.docs | document | Documents stored in the bucket space | | vds.datastored.bucket\_space.ready\_buckets | bucket | Number of ready buckets in the bucket space | | vds.datastored.fullbucketinfolatency | millisecond | Amount of time spent to process a full bucket info request | | vds.datastored.fullbucketinforeqsize | node | Amount of distributors answered at once in full bucket info requests. | | vds.datastored.simplebucketinforeqsize | bucket | Amount of buckets returned in simple bucket info requests | | vds.filestor.allthreads.applybucketdiff.count | request | Number of requests processed. | | vds.filestor.allthreads.applybucketdiff.failed | request | Number of failed requests. | | vds.filestor.allthreads.applybucketdiff.latency | millisecond | Latency of successful requests. | | vds.filestor.allthreads.applybucketdiffreply | request | Number of applybucketdiff replies that have been processed. | | vds.filestor.allthreads.bucketfixed | bucket | Number of times bucket has been fixed because of corruption | | vds.filestor.allthreads.bucketverified.count | request | Number of requests processed. | | vds.filestor.allthreads.bucketverified.failed | request | Number of failed requests. | | vds.filestor.allthreads.bucketverified.latency | request | Latency of successful requests. | | vds.filestor.allthreads.bytesmerged | byte | Total number of bytes merged into this node. | | vds.filestor.allthreads.createbuckets.count | request | Number of requests processed. | | vds.filestor.allthreads.createbuckets.failed | request | Number of failed requests. | | vds.filestor.allthreads.createbuckets.latency | request | Latency of successful requests. | | vds.filestor.allthreads.failedoperations | operation | Number of operations throwing exceptions. | | vds.filestor.allthreads.getbucketdiff.count | request | Number of requests processed. | | vds.filestor.allthreads.getbucketdiff.failed | request | Number of failed requests. | | vds.filestor.allthreads.getbucketdiff.latency | request | Latency of successful requests. | | vds.filestor.allthreads.getbucketdiffreply | request | Number of getbucketdiff replies that have been processed. | | vds.filestor.allthreads.internaljoin.count | request | Number of requests processed. | | vds.filestor.allthreads.internaljoin.failed | request | Number of failed requests. | | vds.filestor.allthreads.internaljoin.latency | millisecond | Latency of successful requests. | | vds.filestor.allthreads.movedbuckets.count | request | Number of requests processed. | | vds.filestor.allthreads.movedbuckets.failed | request | Number of failed requests. | | vds.filestor.allthreads.movedbuckets.latency | millisecond | Latency of successful requests. | | vds.filestor.allthreads.operations | operation | Number of operations processed. | | vds.filestor.allthreads.readbucketinfo.count | request | Number of requests processed. | | vds.filestor.allthreads.readbucketinfo.failed | request | Number of failed requests. | | vds.filestor.allthreads.readbucketinfo.latency | request | Latency of successful requests. | | vds.filestor.allthreads.readbucketlist.count | request | Number of requests processed. | | vds.filestor.allthreads.readbucketlist.failed | request | Number of failed requests. | | vds.filestor.allthreads.readbucketlist.latency | millisecond | Latency of successful requests. | | vds.filestor.allthreads.recheckbucketinfo.count | request | Number of requests processed. | | vds.filestor.allthreads.recheckbucketinfo.failed | request | Number of failed requests. | | vds.filestor.allthreads.recheckbucketinfo.latency | millisecond | Latency of successful requests. | | vds.filestor.allthreads.revert.count | request | Number of requests processed. | | vds.filestor.allthreads.revert.failed | request | Number of failed requests. | | vds.filestor.allthreads.revert.latency | millisecond | Latency of successful requests. | | vds.filestor.allthreads.revert.not\_found | request | Number of requests that could not be completed due to source document not found. | | vds.filestor.allthreads.stat\_bucket.count | request | Number of requests processed. | | vds.filestor.allthreads.stat\_bucket.failed | request | Number of failed requests. | | vds.filestor.allthreads.stat\_bucket.latency | request | Latency of successful requests. | | vds.filestor.bucket\_db\_init\_latency | millisecond | Time taken (in ms) to initialize bucket databases with information from the persistence provider | | vds.filestor.directoryevents | operation | Number of directory events received. | | vds.filestor.diskevents | operation | Number of disk events received. | | vds.filestor.partitionevents | operation | Number of partition events received. | | vds.filestor.pendingmerge | bucket | Number of buckets currently being merged. | | vds.filestor.waitingforlockrate | operation | Amount of times a filestor thread has needed to wait for lock to take next message in queue. | | vds.mergethrottler.mergechains.failures.aborted | operation | The number of merges that failed because the storage node was (most likely) shutting down | | vds.mergethrottler.mergechains.failures.bucketnotfound | operation | The number of operations that failed because the bucket did not exist | | vds.server.memoryusage | byte | Amount of memory used by the storage subsystem | | vds.server.memoryusage\_visiting | byte | Message use from visiting | | vds.server.message\_memory\_use.highpri | byte | Message use from high priority storage messages | | vds.server.message\_memory\_use.lowpri | byte | Message use from low priority storage messages | | vds.server.message\_memory\_use.normalpri | byte | Message use from normal priority storage messages | | vds.server.message\_memory\_use.total | byte | Message use from storage messages | | vds.server.message\_memory\_use.veryhighpri | byte | Message use from very high priority storage messages | | vds.state\_manager.invoke\_state\_listeners\_latency | millisecond | Time spent (in ms) propagating state changes to internal state listeners | | vds.visitor.cv\_queueevictedwaittime | millisecond | Milliseconds waiting in create visitor queue, for visitors that was evicted from queue due to higher priority visitors coming | | vds.visitor.cv\_queuefull | operation | Number of create visitor messages failed as queue is full | | vds.visitor.cv\_queuesize | item | Size of create visitor queue | | vds.visitor.cv\_queuetimeoutwaittime | millisecond | Milliseconds waiting in create visitor queue, for visitors that timed out while in the visitor queue | | vds.visitor.cv\_queuewaittime | millisecond | Milliseconds waiting in create visitor queue, for visitors that was added to visitor queue but scheduled later | | vds.visitor.cv\_skipqueue | operation | Number of times we could skip queue as we had free visitor spots | | vds.server.network.rpc-capability-checks-failed | failure | Number of RPC operations that failed due to one or more missing capabilities | | vds.server.network.status-capability-checks-failed | failure | Number of status page operations that failed due to one or more missing capabilities | | vds.server.fnet.num-connections | connection | Total number of connection objects | Copyright © 2026 - 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