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menu__caret"></button></div></li></ul></nav></div></div></aside><main class="docMainContainer_gTbr"><div class="container padding-top--md padding-bottom--lg"><div class="row"><div class="col docItemCol_VOVn"><div class="docItemContainer_Djhp"><article><nav class="theme-doc-breadcrumbs breadcrumbsContainer_Z_bl" aria-label="Breadcrumbs"><ul class="breadcrumbs" itemscope="" itemtype="https://schema.org/BreadcrumbList"><li class="breadcrumbs__item"><a aria-label="Home page" class="breadcrumbs__link" href="/"><svg viewBox="0 0 24 24" class="breadcrumbHomeIcon_YNFT"><path d="M10 19v-5h4v5c0 .55.45 1 1 1h3c.55 0 1-.45 1-1v-7h1.7c.46 0 .68-.57.33-.87L12.67 3.6c-.38-.34-.96-.34-1.34 0l-8.36 7.53c-.34.3-.13.87.33.87H5v7c0 .55.45 1 1 1h3c.55 0 1-.45 1-1z" fill="currentColor"></path></svg></a></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">Observability</span><meta itemprop="position" content="1"></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">OpenTelemetry Metrics</span><meta itemprop="position" content="2"></li></ul></nav><span class="theme-doc-version-badge badge badge--secondary">Version: Next</span><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><header><h1>Pulsar OpenTelemetry Metrics</h1></header><p>Pulsar exposes the following OpenTelemetry metrics.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="broker">Broker<a href="#broker" class="hash-link" aria-label="Direct link to Broker" title="Direct link to Broker"></a></h2><h3 class="anchor anchorWithStickyNavbar_LWe7" id="topic-messaging-metrics">Topic Messaging metrics<a href="#topic-messaging-metrics" class="hash-link" aria-label="Direct link to Topic Messaging metrics" title="Direct link to Topic Messaging metrics"></a></h3><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopicsubscriptioncount">pulsar.broker.topic.subscription.count<a href="#pulsarbrokertopicsubscriptioncount" class="hash-link" aria-label="Direct link to pulsar.broker.topic.subscription.count" title="Direct link to pulsar.broker.topic.subscription.count"></a></h4><p>The number of Pulsar subscriptions of the topic served by this broker.</p><ul><li>Type: UpDownCounter</li><li>Unit: <code>{subscription}</code></li><li>Attributes:<ul><li><code>pulsar.domain</code> - The domain of the topic. Can be one of:<ul><li><code>persistent</code></li><li><code>non-persistent</code></li></ul></li><li><code>pulsar.tenant</code> - The topic tenant.</li><li><code>pulsar.namespace</code> - The topic namespace.</li><li><code>pulsar.topic</code> - The topic name.</li><li><code>pulsar.partition.index</code> - The partition index of the topic. Present only if the topic is partitioned.</li></ul></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopicproducercount">pulsar.broker.topic.producer.count<a href="#pulsarbrokertopicproducercount" class="hash-link" aria-label="Direct link to pulsar.broker.topic.producer.count" title="Direct link to pulsar.broker.topic.producer.count"></a></h4><p>The number of active producers of the topic connected to this broker.</p><ul><li>Type: UpDownCounter</li><li>Unit: <code>{producer}</code></li><li>Attributes:<ul><li><code>pulsar.domain</code> - The domain of the topic. Can be one of:<ul><li><code>persistent</code></li><li><code>non-persistent</code></li></ul></li><li><code>pulsar.tenant</code> - The topic tenant.</li><li><code>pulsar.namespace</code> - The topic namespace.</li><li><code>pulsar.topic</code> - The topic name.</li><li><code>pulsar.partition.index</code> - The partition index of the topic. Present only if the topic is partitioned.</li></ul></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopicconsumercount">pulsar.broker.topic.consumer.count<a href="#pulsarbrokertopicconsumercount" class="hash-link" aria-label="Direct link to pulsar.broker.topic.consumer.count" title="Direct link to pulsar.broker.topic.consumer.count"></a></h4><p>The number of active consumers of the topic connected to this broker.</p><ul><li>Type: UpDownCounter</li><li>Unit: <code>{consumer}</code></li><li>Attributes:<ul><li><code>pulsar.domain</code> - The domain of the topic. Can be one of:<ul><li><code>persistent</code></li><li><code>non-persistent</code></li></ul></li><li><code>pulsar.tenant</code> - The topic tenant.</li><li><code>pulsar.namespace</code> - The topic namespace.</li><li><code>pulsar.topic</code> - The topic name.</li><li><code>pulsar.partition.index</code> - The partition index of the topic. Present only if the topic is partitioned.</li></ul></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopicmessageincomingcount">pulsar.broker.topic.message.incoming.count<a href="#pulsarbrokertopicmessageincomingcount" class="hash-link" aria-label="Direct link to pulsar.broker.topic.message.incoming.count" title="Direct link to pulsar.broker.topic.message.incoming.count"></a></h4><p>The total number of messages received for this topic.</p><ul><li>Type: Counter</li><li>Unit: <code>{message}</code></li><li>Attributes:<ul><li><code>pulsar.domain</code> - The domain of the topic. Can be one of:<ul><li><code>persistent</code></li><li><code>non-persistent</code></li></ul></li><li><code>pulsar.tenant</code> - The topic tenant.</li><li><code>pulsar.namespace</code> - The topic namespace.</li><li><code>pulsar.topic</code> - The topic name.</li><li><code>pulsar.partition.index</code> - The partition index of the topic. Present only if the topic is partitioned.</li></ul></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopicmessageoutgoingcount">pulsar.broker.topic.message.outgoing.count<a href="#pulsarbrokertopicmessageoutgoingcount" class="hash-link" aria-label="Direct link to pulsar.broker.topic.message.outgoing.count" title="Direct link to pulsar.broker.topic.message.outgoing.count"></a></h4><p>The total number of messages read from this topic.</p><ul><li>Type: Counter</li><li>Unit: <code>{message}</code></li><li>Attributes:<ul><li><code>pulsar.domain</code> - The domain of the topic. Can be one of:<ul><li><code>persistent</code></li><li><code>non-persistent</code></li></ul></li><li><code>pulsar.tenant</code> - The topic tenant.</li><li><code>pulsar.namespace</code> - The topic namespace.</li><li><code>pulsar.topic</code> - The topic name.</li><li><code>pulsar.partition.index</code> - The partition index of the topic. Present only if the topic is partitioned.</li></ul></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopicmessageincomingsize">pulsar.broker.topic.message.incoming.size<a href="#pulsarbrokertopicmessageincomingsize" class="hash-link" aria-label="Direct link to pulsar.broker.topic.message.incoming.size" title="Direct link to pulsar.broker.topic.message.incoming.size"></a></h4><p>The total number of messages bytes received for this topic.</p><ul><li>Type: Counter</li><li>Unit: <code>By</code></li><li>Attributes:<ul><li><code>pulsar.domain</code> - The domain of the topic. Can be one of:<ul><li><code>persistent</code></li><li><code>non-persistent</code></li></ul></li><li><code>pulsar.tenant</code> - The topic tenant.</li><li><code>pulsar.namespace</code> - The topic namespace.</li><li><code>pulsar.topic</code> - The topic name.</li><li><code>pulsar.partition.index</code> - The partition index of the topic. Present only if the topic is partitioned.</li></ul></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopicmessageoutgoingsize">pulsar.broker.topic.message.outgoing.size<a href="#pulsarbrokertopicmessageoutgoingsize" class="hash-link" aria-label="Direct link to pulsar.broker.topic.message.outgoing.size" title="Direct link to pulsar.broker.topic.message.outgoing.size"></a></h4><p>The total number of messages bytes read from this topic.</p><ul><li>Type: Counter</li><li>Unit: <code>By</code></li><li>Attributes:<ul><li><code>pulsar.domain</code> - The domain of the topic. Can be one of:<ul><li><code>persistent</code></li><li><code>non-persistent</code></li></ul></li><li><code>pulsar.tenant</code> - The topic tenant.</li><li><code>pulsar.namespace</code> - The topic namespace.</li><li><code>pulsar.topic</code> - The topic name.</li><li><code>pulsar.partition.index</code> - The partition index of the topic. Present only if the topic is partitioned.</li></ul></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopicpublishratelimitcount">pulsar.broker.topic.publish.rate.limit.count<a href="#pulsarbrokertopicpublishratelimitcount" class="hash-link" aria-label="Direct link to pulsar.broker.topic.publish.rate.limit.count" title="Direct link to pulsar.broker.topic.publish.rate.limit.count"></a></h4><p>The number of times the publish rate limit is triggered.</p><ul><li>Type: Counter</li><li>Unit: <code>{event}</code></li><li>Attributes:<ul><li><code>pulsar.domain</code> - The domain of the topic. Can be one of:<ul><li><code>persistent</code></li><li><code>non-persistent</code></li></ul></li><li><code>pulsar.tenant</code> - The topic tenant.</li><li><code>pulsar.namespace</code> - The topic namespace.</li><li><code>pulsar.topic</code> - The topic name.</li><li><code>pulsar.partition.index</code> - The partition index of the topic. Present only if the topic is partitioned.</li></ul></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopicstoragesize">pulsar.broker.topic.storage.size<a href="#pulsarbrokertopicstoragesize" class="hash-link" aria-label="Direct link to pulsar.broker.topic.storage.size" title="Direct link to pulsar.broker.topic.storage.size"></a></h4><p>The total storage size of the messages in this topic, including storage used by replicas.</p><ul><li>Type: UpDownCounter</li><li>Unit: <code>By</code></li><li>Attributes:<ul><li><code>pulsar.domain</code> - The domain of the topic. Can be one of:<ul><li><code>persistent</code></li><li><code>non-persistent</code></li></ul></li><li><code>pulsar.tenant</code> - The topic tenant.</li><li><code>pulsar.namespace</code> - The topic namespace.</li><li><code>pulsar.topic</code> - The topic name.</li><li><code>pulsar.partition.index</code> - The partition index of the topic. Present only if the topic is partitioned.</li></ul></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopicstoragelogicalsize">pulsar.broker.topic.storage.logical.size<a href="#pulsarbrokertopicstoragelogicalsize" class="hash-link" aria-label="Direct link to pulsar.broker.topic.storage.logical.size" title="Direct link to pulsar.broker.topic.storage.logical.size"></a></h4><p>The storage size of the messages in this topic, excluding storage used by replicas.</p><ul><li>Type: UpDownCounter</li><li>Unit: <code>By</code></li><li>Attributes:<ul><li><code>pulsar.domain</code> - The domain of the topic. Can be one of:<ul><li><code>persistent</code></li><li><code>non-persistent</code></li></ul></li><li><code>pulsar.tenant</code> - The topic tenant.</li><li><code>pulsar.namespace</code> - The topic namespace.</li><li><code>pulsar.topic</code> - The topic name.</li><li><code>pulsar.partition.index</code> - The partition index of the topic. Present only if the topic is partitioned.</li></ul></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopicstoragebacklogsize">pulsar.broker.topic.storage.backlog.size<a href="#pulsarbrokertopicstoragebacklogsize" class="hash-link" aria-label="Direct link to pulsar.broker.topic.storage.backlog.size" title="Direct link to pulsar.broker.topic.storage.backlog.size"></a></h4><p>The size of the backlog storage for this topic.</p><ul><li>Type: UpDownCounter</li><li>Unit: <code>By</code></li><li>Attributes:<ul><li><code>pulsar.domain</code> - The domain of the topic. Can be one of:<ul><li><code>persistent</code></li><li><code>non-persistent</code></li></ul></li><li><code>pulsar.tenant</code> - The topic tenant.</li><li><code>pulsar.namespace</code> - The topic namespace.</li><li><code>pulsar.topic</code> - The topic name.</li><li><code>pulsar.partition.index</code> - The partition index of the topic. Present only if the topic is partitioned.</li></ul></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopicstorageoffloadedsize">pulsar.broker.topic.storage.offloaded.size<a href="#pulsarbrokertopicstorageoffloadedsize" class="hash-link" aria-label="Direct link to pulsar.broker.topic.storage.offloaded.size" title="Direct link to pulsar.broker.topic.storage.offloaded.size"></a></h4><p>The total amount of the data in this topic offloaded to the tiered storage.</p><ul><li>Type: UpDownCounter</li><li>Unit: <code>By</code></li><li>Attributes:<ul><li><code>pulsar.domain</code> - The domain of the topic. Can be one of:<ul><li><code>persistent</code></li><li><code>non-persistent</code></li></ul></li><li><code>pulsar.tenant</code> - The topic tenant.</li><li><code>pulsar.namespace</code> - The topic namespace.</li><li><code>pulsar.topic</code> - The topic name.</li><li><code>pulsar.partition.index</code> - The partition index of the topic. Present only if the topic is partitioned.</li></ul></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopicstoragebacklogquotalimitsize">pulsar.broker.topic.storage.backlog.quota.limit.size<a href="#pulsarbrokertopicstoragebacklogquotalimitsize" class="hash-link" aria-label="Direct link to pulsar.broker.topic.storage.backlog.quota.limit.size" title="Direct link to pulsar.broker.topic.storage.backlog.quota.limit.size"></a></h4><p>The size based backlog quota limit for this topic.</p><ul><li>Type: UpDownCounter</li><li>Unit: <code>By</code></li><li>Attributes:<ul><li><code>pulsar.domain</code> - The domain of the topic. Can be one of:<ul><li><code>persistent</code></li><li><code>non-persistent</code></li></ul></li><li><code>pulsar.tenant</code> - The topic tenant.</li><li><code>pulsar.namespace</code> - The topic namespace.</li><li><code>pulsar.topic</code> - The topic name.</li><li><code>pulsar.partition.index</code> - The partition index of the topic. Present only if the topic is partitioned.</li></ul></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopicstoragebacklogquotalimittime">pulsar.broker.topic.storage.backlog.quota.limit.time<a href="#pulsarbrokertopicstoragebacklogquotalimittime" class="hash-link" aria-label="Direct link to pulsar.broker.topic.storage.backlog.quota.limit.time" title="Direct link to pulsar.broker.topic.storage.backlog.quota.limit.time"></a></h4><p>The time based backlog quota limit for this topic.</p><ul><li>Type: Gauge</li><li>Unit: <code>s</code></li><li>Attributes:<ul><li><code>pulsar.domain</code> - The domain of the topic. Can be one of:<ul><li><code>persistent</code></li><li><code>non-persistent</code></li></ul></li><li><code>pulsar.tenant</code> - The topic tenant.</li><li><code>pulsar.namespace</code> - The topic namespace.</li><li><code>pulsar.topic</code> - The topic name.</li><li><code>pulsar.partition.index</code> - The partition index of the topic. Present only if the topic is partitioned.</li></ul></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopicstoragebacklogquotaevictioncount">pulsar.broker.topic.storage.backlog.quota.eviction.count<a href="#pulsarbrokertopicstoragebacklogquotaevictioncount" class="hash-link" aria-label="Direct link to pulsar.broker.topic.storage.backlog.quota.eviction.count" title="Direct link to pulsar.broker.topic.storage.backlog.quota.eviction.count"></a></h4><p>The number of times a backlog was evicted since it has exceeded its quota.</p><ul><li>Type: Counter</li><li>Unit: <code>{eviction}</code></li><li>Attributes:<ul><li><code>pulsar.domain</code> - The domain of the topic. Can be one of:<ul><li><code>persistent</code></li><li><code>non-persistent</code></li></ul></li><li><code>pulsar.tenant</code> - The topic tenant.</li><li><code>pulsar.namespace</code> - The topic namespace.</li><li><code>pulsar.topic</code> - The topic name.</li><li><code>pulsar.partition.index</code> - The partition index of the topic. Present only if the topic is partitioned.</li><li><code>pulsar.backlog.quota.type</code> - The backlog quota type. Can be one of:<ul><li><code>size</code></li><li><code>time</code></li></ul></li></ul></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopicstoragebacklogage">pulsar.broker.topic.storage.backlog.age<a href="#pulsarbrokertopicstoragebacklogage" class="hash-link" aria-label="Direct link to pulsar.broker.topic.storage.backlog.age" title="Direct link to pulsar.broker.topic.storage.backlog.age"></a></h4><p>The age of the oldest unacknowledged message (backlog).</p><ul><li>Type: Gauge</li><li>Unit: <code>s</code></li><li>Attributes:<ul><li><code>pulsar.domain</code> - The domain of the topic. Can be one of:<ul><li><code>persistent</code></li><li><code>non-persistent</code></li></ul></li><li><code>pulsar.tenant</code> - The topic tenant.</li><li><code>pulsar.namespace</code> - The topic namespace.</li><li><code>pulsar.topic</code> - The topic name.</li><li><code>pulsar.partition.index</code> - The partition index of the topic. Present only if the topic is partitioned.</li></ul></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopicstorageentryoutgoingcount">pulsar.broker.topic.storage.entry.outgoing.count<a href="#pulsarbrokertopicstorageentryoutgoingcount" class="hash-link" aria-label="Direct link to pulsar.broker.topic.storage.entry.outgoing.count" title="Direct link to pulsar.broker.topic.storage.entry.outgoing.count"></a></h4><p>The total message batches (entries) written to the storage for this topic.</p><ul><li>Type: Counter</li><li>Unit: <code>{entry}</code></li><li>Attributes:<ul><li><code>pulsar.domain</code> - The domain of the topic. Can be one of:<ul><li><code>persistent</code></li><li><code>non-persistent</code></li></ul></li><li><code>pulsar.tenant</code> - The topic tenant.</li><li><code>pulsar.namespace</code> - The topic namespace.</li><li><code>pulsar.topic</code> - The topic name.</li><li><code>pulsar.partition.index</code> - The partition index of the topic. Present only if the topic is partitioned.</li></ul></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopicstorageentryincomingcount">pulsar.broker.topic.storage.entry.incoming.count<a href="#pulsarbrokertopicstorageentryincomingcount" class="hash-link" aria-label="Direct link to pulsar.broker.topic.storage.entry.incoming.count" title="Direct link to pulsar.broker.topic.storage.entry.incoming.count"></a></h4><p>The total message batches (entries) read from the storage for this topic.</p><ul><li>Type: Counter</li><li>Unit: <code>{entry}</code></li><li>Attributes:<ul><li><code>pulsar.domain</code> - The domain of the topic. Can be one of:<ul><li><code>persistent</code></li><li><code>non-persistent</code></li></ul></li><li><code>pulsar.tenant</code> - The topic tenant.</li><li><code>pulsar.namespace</code> - The topic namespace.</li><li><code>pulsar.topic</code> - The topic name.</li><li><code>pulsar.partition.index</code> - The partition index of the topic. Present only if the topic is partitioned.</li></ul></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopiccompactionremovedmessagecount">pulsar.broker.topic.compaction.removed.message.count<a href="#pulsarbrokertopiccompactionremovedmessagecount" class="hash-link" aria-label="Direct link to pulsar.broker.topic.compaction.removed.message.count" title="Direct link to pulsar.broker.topic.compaction.removed.message.count"></a></h4><p>The total number of messages removed by compaction.</p><ul><li>Type: Counter</li><li>Unit: <code>{message}</code></li><li>Attributes:<ul><li><code>pulsar.domain</code> - The domain of the topic. Can be one of:<ul><li><code>persistent</code></li><li><code>non-persistent</code></li></ul></li><li><code>pulsar.tenant</code> - The topic tenant.</li><li><code>pulsar.namespace</code> - The topic namespace.</li><li><code>pulsar.topic</code> - The topic name.</li><li><code>pulsar.partition.index</code> - The partition index of the topic. Present only if the topic is partitioned.</li></ul></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopiccompactionoperationcount">pulsar.broker.topic.compaction.operation.count<a href="#pulsarbrokertopiccompactionoperationcount" class="hash-link" aria-label="Direct link to pulsar.broker.topic.compaction.operation.count" title="Direct link to pulsar.broker.topic.compaction.operation.count"></a></h4><p>The total number of compaction operations.</p><ul><li>Type: Counter</li><li>Unit: <code>{operation}</code></li><li>Attributes:<ul><li><code>pulsar.domain</code> - The domain of the topic. Can be one of:<ul><li><code>persistent</code></li><li><code>non-persistent</code></li></ul></li><li><code>pulsar.tenant</code> - The topic tenant.</li><li><code>pulsar.namespace</code> - The topic namespace.</li><li><code>pulsar.topic</code> - The topic name.</li><li><code>pulsar.partition.index</code> - The partition index of the topic. Present only if the topic is partitioned.</li><li><code>pulsar.compaction.status</code> - The compaction status. Can be one of:<ul><li><code>success</code></li><li>`failure</li></ul></li></ul></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopiccompactionduration">pulsar.broker.topic.compaction.duration<a href="#pulsarbrokertopiccompactionduration" class="hash-link" aria-label="Direct link to pulsar.broker.topic.compaction.duration" title="Direct link to pulsar.broker.topic.compaction.duration"></a></h4><p>The total time duration of compaction operations on the topic.</p><ul><li>Type: DoubleUpDownCounter</li><li>Unit: <code>s</code></li><li>Attributes:<ul><li><code>pulsar.domain</code> - The domain of the topic. Can be one of:<ul><li><code>persistent</code></li><li><code>non-persistent</code></li></ul></li><li><code>pulsar.tenant</code> - The topic tenant.</li><li><code>pulsar.namespace</code> - The topic namespace.</li><li><code>pulsar.topic</code> - The topic name.</li><li><code>pulsar.partition.index</code> - The partition index of the topic. Present only if the topic is partitioned.</li></ul></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopiccompactionincomingsize">pulsar.broker.topic.compaction.incoming.size<a href="#pulsarbrokertopiccompactionincomingsize" class="hash-link" aria-label="Direct link to pulsar.broker.topic.compaction.incoming.size" title="Direct link to pulsar.broker.topic.compaction.incoming.size"></a></h4><p>The total count of bytes read by the compaction process for this topic.</p><ul><li>Type: Counter</li><li>Unit: <code>By</code></li><li>Attributes:<ul><li><code>pulsar.domain</code> - The domain of the topic. Can be one of:<ul><li><code>persistent</code></li><li><code>non-persistent</code></li></ul></li><li><code>pulsar.tenant</code> - The topic tenant.</li><li><code>pulsar.namespace</code> - The topic namespace.</li><li><code>pulsar.topic</code> - The topic name.</li><li><code>pulsar.partition.index</code> - The partition index of the topic. Present only if the topic is partitioned.</li></ul></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopiccompactionoutgoingsize">pulsar.broker.topic.compaction.outgoing.size<a href="#pulsarbrokertopiccompactionoutgoingsize" class="hash-link" aria-label="Direct link to pulsar.broker.topic.compaction.outgoing.size" title="Direct link to pulsar.broker.topic.compaction.outgoing.size"></a></h4><p>The total count of bytes written by the compaction process for this topic.</p><ul><li>Type: Counter</li><li>Unit: <code>By</code></li><li>Attributes:<ul><li><code>pulsar.domain</code> - The domain of the topic. Can be one of:<ul><li><code>persistent</code></li><li><code>non-persistent</code></li></ul></li><li><code>pulsar.tenant</code> - The topic tenant.</li><li><code>pulsar.namespace</code> - The topic namespace.</li><li><code>pulsar.topic</code> - The topic name.</li><li><code>pulsar.partition.index</code> - The partition index of the topic. Present only if the topic is partitioned.</li></ul></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopiccompactioncompactedentrycount">pulsar.broker.topic.compaction.compacted.entry.count<a href="#pulsarbrokertopiccompactioncompactedentrycount" class="hash-link" aria-label="Direct link to pulsar.broker.topic.compaction.compacted.entry.count" title="Direct link to pulsar.broker.topic.compaction.compacted.entry.count"></a></h4><p>The total number of compacted entries.</p><ul><li>Type: Counter</li><li>Unit: <code>{entry}</code></li><li>Attributes:<ul><li><code>pulsar.domain</code> - The domain of the topic. Can be one of:<ul><li><code>persistent</code></li><li><code>non-persistent</code></li></ul></li><li><code>pulsar.tenant</code> - The topic tenant.</li><li><code>pulsar.namespace</code> - The topic namespace.</li><li><code>pulsar.topic</code> - The topic name.</li><li><code>pulsar.partition.index</code> - The partition index of the topic. Present only if the topic is partitioned.</li></ul></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopiccompactioncompactedentrysize">pulsar.broker.topic.compaction.compacted.entry.size<a href="#pulsarbrokertopiccompactioncompactedentrysize" class="hash-link" aria-label="Direct link to pulsar.broker.topic.compaction.compacted.entry.size" title="Direct link to pulsar.broker.topic.compaction.compacted.entry.size"></a></h4><p>The total size of the compacted entries.</p><ul><li>Type: Counter</li><li>Unit: <code>By</code></li><li>Attributes:<ul><li><code>pulsar.domain</code> - The domain of the topic. Can be one of:<ul><li><code>persistent</code></li><li><code>non-persistent</code></li></ul></li><li><code>pulsar.tenant</code> - The topic tenant.</li><li><code>pulsar.namespace</code> - The topic namespace.</li><li><code>pulsar.topic</code> - The topic name.</li><li><code>pulsar.partition.index</code> - The partition index of the topic. Present only if the topic is partitioned.</li></ul></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopictransactioncount">pulsar.broker.topic.transaction.count<a href="#pulsarbrokertopictransactioncount" class="hash-link" aria-label="Direct link to pulsar.broker.topic.transaction.count" title="Direct link to pulsar.broker.topic.transaction.count"></a></h4><p>The number of transactions on this topic.</p><ul><li>Type: UpDownCounter</li><li>Unit: <code>{transaction}</code></li><li>Attributes:<ul><li><code>pulsar.domain</code> - The domain of the topic. Can be one of:<ul><li><code>persistent</code></li><li><code>non-persistent</code></li></ul></li><li><code>pulsar.tenant</code> - The topic tenant.</li><li><code>pulsar.namespace</code> - The topic namespace.</li><li><code>pulsar.topic</code> - The topic name.</li><li><code>pulsar.partition.index</code> - The partition index of the topic. Present only if the topic is partitioned.</li><li><code>pulsar.transaction.status</code> - The transaction status. Can be one of:<ul><li><code>active</code></li><li><code>committed</code></li><li><code>aborted</code></li></ul></li></ul></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopicsubscriptiondelayedentrycount">pulsar.broker.topic.subscription.delayed.entry.count<a href="#pulsarbrokertopicsubscriptiondelayedentrycount" class="hash-link" aria-label="Direct link to pulsar.broker.topic.subscription.delayed.entry.count" title="Direct link to pulsar.broker.topic.subscription.delayed.entry.count"></a></h4><p>The total number of message batches (entries) delayed for dispatching.</p><ul><li>Type: UpDownCounter</li><li>Unit: <code>{entry}</code></li><li>Attributes:<ul><li><code>pulsar.domain</code> - The domain of the topic. Can be one of:<ul><li><code>persistent</code></li><li><code>non-persistent</code></li></ul></li><li><code>pulsar.tenant</code> - The topic tenant.</li><li><code>pulsar.namespace</code> - The topic namespace.</li><li><code>pulsar.topic</code> - The topic name.</li><li><code>pulsar.partition.index</code> - The partition index of the topic. Present only if the topic is partitioned.</li></ul></li></ul><h3 class="anchor anchorWithStickyNavbar_LWe7" id="topic-lookup-metrics">Topic Lookup metrics<a href="#topic-lookup-metrics" class="hash-link" aria-label="Direct link to Topic Lookup metrics" title="Direct link to Topic Lookup metrics"></a></h3><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokerlookuprequestduration">pulsar.broker.lookup.request.duration<a href="#pulsarbrokerlookuprequestduration" class="hash-link" aria-label="Direct link to pulsar.broker.lookup.request.duration" title="Direct link to pulsar.broker.lookup.request.duration"></a></h4><p>The duration of topic lookup requests (either binary or HTTP)</p><ul><li>Type: Histogram</li><li>Unit: <code>second</code></li><li>Attributes:<ul><li><code>pulsar.lookup.response</code> - The response type of the lookup request<ul><li><code>failure</code></li><li><code>broker</code></li><li><code>redirect</code></li></ul></li></ul></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokerrequesttopiclookupconcurrentusage">pulsar.broker.request.topic.lookup.concurrent.usage<a href="#pulsarbrokerrequesttopiclookupconcurrentusage" class="hash-link" aria-label="Direct link to pulsar.broker.request.topic.lookup.concurrent.usage" title="Direct link to pulsar.broker.request.topic.lookup.concurrent.usage"></a></h4><p>The number of pending lookup operations in the broker. When it reaches threshold "maxConcurrentLookupRequest" defined in broker.conf, new requests are rejected.</p><ul><li>Type: UpDownCounter</li><li>Unit: <code>{operation}</code></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokerrequesttopiclookupconcurrentlimit">pulsar.broker.request.topic.lookup.concurrent.limit<a href="#pulsarbrokerrequesttopiclookupconcurrentlimit" class="hash-link" aria-label="Direct link to pulsar.broker.request.topic.lookup.concurrent.limit" title="Direct link to pulsar.broker.request.topic.lookup.concurrent.limit"></a></h4><p>The maximum number of pending lookup operations in the broker. Equal to "maxConcurrentLookupRequest" defined in broker.conf.</p><ul><li>Type: UpDownCounter</li><li>Unit: <code>{operation}</code></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopicloadconcurrentusage">pulsar.broker.topic.load.concurrent.usage<a href="#pulsarbrokertopicloadconcurrentusage" class="hash-link" aria-label="Direct link to pulsar.broker.topic.load.concurrent.usage" title="Direct link to pulsar.broker.topic.load.concurrent.usage"></a></h4><p>The number of pending topic load operations in the broker. When it reaches threshold "maxConcurrentTopicLoadRequest" defined in broker.conf, new requests are rejected.</p><ul><li>Type: UpDownCounter</li><li>Unit: <code>{operation}</code></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="pulsarbrokertopicloadconcurrentlimit">pulsar.broker.topic.load.concurrent.limit<a href="#pulsarbrokertopicloadconcurrentlimit" class="hash-link" aria-label="Direct link to pulsar.broker.topic.load.concurrent.limit" title="Direct link to pulsar.broker.topic.load.concurrent.limit"></a></h4><p>The maximum number of pending topic load operations in the broker. Equal to "maxConcurrentTopicLoadRequest" defined in broker.conf.</p><ul><li>Type: UpDownCounter</li><li>Unit: <code>{operation}</code></li></ul></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="theme-doc-footer-edit-meta-row row"><div class="col"><a href="https://github.com/apache/pulsar-site/edit/main/docs/reference-metrics-opentelemetry.md" target="_blank" rel="noreferrer noopener" class="theme-edit-this-page"><svg fill="currentColor" height="20" width="20" viewBox="0 0 40 40" class="iconEdit_Z9Sw" aria-hidden="true"><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"></path></g></svg>Edit this page</a></div><div class="col lastUpdated_vwxv"></div></div></footer></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages navigation"><a class="pagination-nav__link pagination-nav__link--prev" href="/docs/next/deploy-monitoring/"><div 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