Statistics and Metrics Reference

<h2 id="statistics-and-metrics-reference" class="position-relative d-flex align-items-center group"> Statistics and Metrics Reference <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="statistics-and-metrics-reference" aria-haspopup="dialog" aria-label="Share link: Statistics and Metrics Reference"> Share link </button> </h2><div id="headingShareModal" class="heading-share-modal" role="dialog" aria-modal="true" aria-labelledby="headingShareTitle" hidden> <div class="hsm-dialog" role="document"> <div class="hsm-header"> <h2 id="headingShareTitle" class="h6 mb-0 fw-bold">Share this section</h2> <button type="button" class="hsm-close" aria-label="Close"> </button> </div> <div class="hsm-body"> <label for="headingShareInput" class="form-label small text-muted mb-1 text-uppercase fw-bold" style="font-size: 0.7rem; letter-spacing: 0.5px;">Permalink</label> <div class="input-group mb-4 hsm-url-group"> <input id="headingShareInput" type="text" class="form-control font-monospace" readonly aria-readonly="true" style="font-size: 0.85rem;" /> <button class="btn btn-primary hsm-copy" type="button" aria-label="Copy" title="Copy"> </button> </div> <div class="small fw-bold mb-2 text-muted text-uppercase" style="font-size: 0.7rem; 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} requestAnimationFrame(()=>{ input.focus(); }); trapFocus(); } function closeModal(){ if(!isOpen()) return; modal.setAttribute('hidden',''); if(lastFocus && typeof lastFocus.focus==='function') lastFocus.focus(); } function copyCurrent(){ try{ navigator.clipboard.writeText(input.value).then(()=>feedback(true),()=>fallback()); } catch(e){ fallback(); } } function fallback(){ input.select(); try{ document.execCommand('copy'); feedback(true);}catch(e){ feedback(false);} } function feedback(ok){ if(!copyBtn) return; const icon=copyBtn.querySelector('i'); if(!icon) return; const prev=copyBtn.getAttribute('data-prev')||icon.className; if(!copyBtn.getAttribute('data-prev')) copyBtn.setAttribute('data-prev',prev); icon.className= ok ? 'fa-duotone fa-clipboard-check':'fa-duotone fa-circle-exclamation'; setTimeout(()=>{ icon.className=prev; },1800); } function handleShareClick(e){ e.preventDefault(); const btn=e.currentTarget; const id=btn.getAttribute('data-share-target'); if(id) openModal(id); } function bindShareButtons(){ document.querySelectorAll('.h-share').forEach(btn=>{ if(!btn.dataset.hShareBound){ btn.addEventListener('click', handleShareClick); btn.dataset.hShareBound='1'; } }); } bindShareButtons(); if(document.readyState==='loading'){ document.addEventListener('DOMContentLoaded', bindShareButtons); } else { requestAnimationFrame(bindShareButtons); } document.addEventListener('click', function(e){ const shareBtn=e.target.closest && e.target.closest('.h-share'); if(shareBtn && !shareBtn.dataset.hShareBound){ handleShareClick.call(shareBtn, e); } }, true); document.addEventListener('click', e=>{ if(e.target===modal) closeModal(); if(e.target.closest && e.target.closest('.hsm-close')){ e.preventDefault(); closeModal(); } if(copyBtn && (e.target===copyBtn || (e.target.closest && e.target.closest('.hsm-copy')))) { e.preventDefault(); copyCurrent(); } }); document.addEventListener('keydown', e=>{ if(e.key==='Escape' && isOpen()) closeModal(); }); function trapFocus(){ if(trapBound) return; trapBound=true; modal.addEventListener('keydown', f=>{ if(f.key==='Tab' && isOpen()){ const focusable=[...modal.querySelectorAll('a[href],button,input,textarea,select,[tabindex]:not([tabindex="-1"])')].filter(el=>!el.hasAttribute('disabled')); if(!focusable.length) return; const first=focusable[0]; const last=focusable[focusable.length-1]; if(f.shiftKey && document.activeElement===first){ f.preventDefault(); last.focus(); } else if(!f.shiftKey && document.activeElement===last){ f.preventDefault(); first.focus(); } } }); } if(closeBtn) closeBtn.addEventListener('click', e=>{ e.preventDefault(); closeModal(); }); })(); </script>Geode provides comprehensive statistics and metrics for monitoring, optimization, and observability. This reference documents all available metrics, collection methods, and integration options. <h3 id="overview" class="position-relative d-flex align-items-center group"> Overview <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="overview" aria-haspopup="dialog" aria-label="Share link: Overview"> Share link </button> </h3> <h4 id="metric-categories" class="position-relative d-flex align-items-center group"> Metric Categories <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="metric-categories" aria-haspopup="dialog" aria-label="Share link: Metric Categories"> Share link </button> </h4><table> <thead> <tr> <th>Category</th> <th>Purpose</th> <th>Collection Method</th> </tr> </thead> <tbody> <tr> <td>Query Statistics</td> <td>Query performance analysis</td> <td>Automatic</td> </tr> <tr> <td>Storage Statistics</td> <td>Disk and memory usage</td> <td>Automatic</td> </tr> <tr> <td>Index Statistics</td> <td>Index efficiency</td> <td>Automatic + Manual</td> </tr> <tr> <td>Transaction Statistics</td> <td>ACID operations</td> <td>Automatic</td> </tr> <tr> <td>Connection Statistics</td> <td>Client connections</td> <td>Automatic</td> </tr> <tr> <td>System Statistics</td> <td>Resource utilization</td> <td>Automatic</td> </tr> </tbody> </table> <h4 id="access-methods" class="position-relative d-flex align-items-center group"> Access Methods <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="access-methods" aria-haspopup="dialog" aria-label="Share link: Access Methods"> Share link </button> </h4><ol> <li>GQL Procedures: <code>CALL db.stats.*</code></li> <li>Prometheus Endpoint: <code>/metrics</code></li> <li>Admin API: REST endpoints</li> <li>EXPLAIN/PROFILE: Per-query metrics</li> </ol> <hr> <h3 id="query-statistics" class="position-relative d-flex align-items-center group"> Query Statistics <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="query-statistics" aria-haspopup="dialog" aria-label="Share link: Query Statistics"> Share link </button> </h3> <h4 id="global-query-statistics" class="position-relative d-flex align-items-center group"> Global Query Statistics <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="global-query-statistics" aria-haspopup="dialog" aria-label="Share link: Global Query Statistics"> Share link </button> </h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-gql" data-lang="gql">-- View overall query statistics CALL db.stats.queries(); </code></pre></div>Output: <table> <thead> <tr> <th>Metric</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td><code>total_queries</code></td> <td>Counter</td> <td>Total queries executed</td> </tr> <tr> <td><code>successful_queries</code></td> <td>Counter</td> <td>Successfully completed queries</td> </tr> <tr> <td><code>failed_queries</code></td> <td>Counter</td> <td>Failed queries</td> </tr> <tr> <td><code>queries_in_progress</code></td> <td>Gauge</td> <td>Currently executing queries</td> </tr> <tr> <td><code>avg_query_time_ms</code></td> <td>Gauge</td> <td>Average query latency</td> </tr> <tr> <td><code>p50_query_time_ms</code></td> <td>Gauge</td> <td>Median query latency</td> </tr> <tr> <td><code>p95_query_time_ms</code></td> <td>Gauge</td> <td>95th percentile latency</td> </tr> <tr> <td><code>p99_query_time_ms</code></td> <td>Gauge</td> <td>99th percentile latency</td> </tr> <tr> <td><code>max_query_time_ms</code></td> <td>Gauge</td> <td>Maximum observed latency</td> </tr> </tbody> </table> <h4 id="query-type-breakdown" class="position-relative d-flex align-items-center group"> Query Type Breakdown <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="query-type-breakdown" aria-haspopup="dialog" aria-label="Share link: Query Type Breakdown"> Share link </button> </h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-gql" data-lang="gql">-- Statistics by query type CALL db.stats.queries.by_type(); </code></pre></div><table> <thead> <tr> <th>Query Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td><code>MATCH</code></td> <td>Read queries</td> </tr> <tr> <td><code>CREATE</code></td> <td>Node/relationship creation</td> </tr> <tr> <td><code>SET</code></td> <td>Property updates</td> </tr> <tr> <td><code>DELETE</code></td> <td>Deletions</td> </tr> <tr> <td><code>MERGE</code></td> <td>Upsert operations</td> </tr> <tr> <td><code>CALL</code></td> <td>Procedure calls</td> </tr> </tbody> </table> <h4 id="slow-query-log" class="position-relative d-flex align-items-center group"> Slow Query Log <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="slow-query-log" aria-haspopup="dialog" aria-label="Share link: Slow Query Log"> Share link </button> </h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-gql" data-lang="gql">-- View slow queries (> threshold) CALL db.stats.slow_queries(100); -- threshold in ms -- Configure slow query threshold CALL db.config.set('query.slow_threshold_ms', 100); </code></pre></div>Slow Query Entry: <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-json" data-lang="json">{ "timestamp": "2026-01-28T10:30:00Z", "query": "MATCH (p:Person)-[:KNOWS*5]->(f) RETURN f", "duration_ms": 1523, "rows_returned": 10000, "db_hits": 500000, "user": "alice", "client_ip": "192.168.1.100" } </code></pre></div> <h4 id="query-plan-statistics" class="position-relative d-flex align-items-center group"> Query Plan Statistics <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="query-plan-statistics" aria-haspopup="dialog" aria-label="Share link: Query Plan Statistics"> Share link </button> </h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-gql" data-lang="gql">-- View cached query plans CALL db.stats.query_plans(); </code></pre></div><table> <thead> <tr> <th>Metric</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td><code>plan_cache_size</code></td> <td>Number of cached plans</td> </tr> <tr> <td><code>plan_cache_hits</code></td> <td>Cache hit count</td> </tr> <tr> <td><code>plan_cache_misses</code></td> <td>Cache miss count</td> </tr> <tr> <td><code>plan_cache_hit_rate</code></td> <td>Hit rate percentage</td> </tr> <tr> <td><code>avg_plan_time_ms</code></td> <td>Average planning time</td> </tr> </tbody> </table> <hr> <h3 id="storage-statistics" class="position-relative d-flex align-items-center group"> Storage Statistics <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="storage-statistics" aria-haspopup="dialog" aria-label="Share link: Storage Statistics"> Share link </button> </h3> <h4 id="database-size" class="position-relative d-flex align-items-center group"> Database Size <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="database-size" aria-haspopup="dialog" aria-label="Share link: Database Size"> Share link </button> </h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-gql" data-lang="gql">-- Overall storage statistics CALL db.stats.storage(); </code></pre></div>Output: <table> <thead> <tr> <th>Metric</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td><code>data_size_bytes</code></td> <td>Gauge</td> <td>Total data file size</td> </tr> <tr> <td><code>index_size_bytes</code></td> <td>Gauge</td> <td>Total index size</td> </tr> <tr> <td><code>wal_size_bytes</code></td> <td>Gauge</td> <td>Write-ahead log size</td> </tr> <tr> <td><code>total_size_bytes</code></td> <td>Gauge</td> <td>Total disk usage</td> </tr> <tr> <td><code>page_count</code></td> <td>Gauge</td> <td>Total pages allocated</td> </tr> <tr> <td><code>used_pages</code></td> <td>Gauge</td> <td>Pages with data</td> </tr> <tr> <td><code>free_pages</code></td> <td>Gauge</td> <td>Available pages</td> </tr> <tr> <td><code>fragmentation_ratio</code></td> <td>Gauge</td> <td>Space fragmentation (0-1)</td> </tr> </tbody> </table> <h4 id="graph-statistics" class="position-relative d-flex align-items-center group"> Graph Statistics <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="graph-statistics" aria-haspopup="dialog" aria-label="Share link: Graph Statistics"> Share link </button> </h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-gql" data-lang="gql">-- Graph element counts CALL db.stats.graph(); </code></pre></div><table> <thead> <tr> <th>Metric</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td><code>node_count</code></td> <td>Total nodes</td> </tr> <tr> <td><code>relationship_count</code></td> <td>Total relationships</td> </tr> <tr> <td><code>label_count</code></td> <td>Distinct node labels</td> </tr> <tr> <td><code>relationship_type_count</code></td> <td>Distinct relationship types</td> </tr> <tr> <td><code>property_key_count</code></td> <td>Distinct property keys</td> </tr> </tbody> </table> <h4 id="label-statistics" class="position-relative d-flex align-items-center group"> Label Statistics <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="label-statistics" aria-haspopup="dialog" aria-label="Share link: Label Statistics"> Share link </button> </h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-gql" data-lang="gql">-- Statistics per label CALL db.stats.labels(); </code></pre></div>Per-label metrics: <table> <thead> <tr> <th>Metric</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td><code>node_count</code></td> <td>Nodes with this label</td> </tr> <tr> <td><code>avg_property_count</code></td> <td>Average properties per node</td> </tr> <tr> <td><code>avg_relationship_count</code></td> <td>Average relationships per node</td> </tr> </tbody> </table> <h4 id="relationship-type-statistics" class="position-relative d-flex align-items-center group"> Relationship Type Statistics <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="relationship-type-statistics" aria-haspopup="dialog" aria-label="Share link: Relationship Type Statistics"> Share link </button> </h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-gql" data-lang="gql">-- Statistics per relationship type CALL db.stats.relationship_types(); </code></pre></div>Per-type metrics: <table> <thead> <tr> <th>Metric</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td><code>count</code></td> <td>Relationships of this type</td> </tr> <tr> <td><code>avg_property_count</code></td> <td>Average properties per relationship</td> </tr> </tbody> </table> <hr> <h3 id="index-statistics" class="position-relative d-flex align-items-center group"> Index Statistics <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="index-statistics" aria-haspopup="dialog" aria-label="Share link: Index Statistics"> Share link </button> </h3> <h4 id="index-overview" class="position-relative d-flex align-items-center group"> Index Overview <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="index-overview" aria-haspopup="dialog" aria-label="Share link: Index Overview"> Share link </button> </h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-gql" data-lang="gql">-- All index statistics CALL db.stats.indexes(); </code></pre></div>Per-index metrics: <table> <thead> <tr> <th>Metric</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td><code>index_name</code></td> <td>String</td> <td>Index identifier</td> </tr> <tr> <td><code>index_type</code></td> <td>String</td> <td>btree, hash, fulltext, etc.</td> </tr> <tr> <td><code>label</code></td> <td>String</td> <td>Target label</td> </tr> <tr> <td><code>property</code></td> <td>String</td> <td>Indexed property</td> </tr> <tr> <td><code>size_bytes</code></td> <td>Gauge</td> <td>Index storage size</td> </tr> <tr> <td><code>entry_count</code></td> <td>Gauge</td> <td>Number of indexed entries</td> </tr> <tr> <td><code>unique_values</code></td> <td>Gauge</td> <td>Distinct indexed values</td> </tr> <tr> <td><code>null_count</code></td> <td>Gauge</td> <td>NULL entries</td> </tr> <tr> <td><code>avg_values_per_key</code></td> <td>Gauge</td> <td>Average duplicates per key</td> </tr> </tbody> </table> <h4 id="index-usage-statistics" class="position-relative d-flex align-items-center group"> Index Usage Statistics <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="index-usage-statistics" aria-haspopup="dialog" aria-label="Share link: Index Usage Statistics"> Share link </button> </h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-gql" data-lang="gql">-- Index usage metrics CALL db.stats.index_usage(); </code></pre></div><table> <thead> <tr> <th>Metric</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td><code>reads</code></td> <td>Index read operations</td> </tr> <tr> <td><code>scans</code></td> <td>Full index scans</td> </tr> <tr> <td><code>seeks</code></td> <td>Point lookups</td> </tr> <tr> <td><code>range_scans</code></td> <td>Range query operations</td> </tr> <tr> <td><code>updates</code></td> <td>Index update operations</td> </tr> <tr> <td><code>last_used</code></td> <td>Timestamp of last use</td> </tr> </tbody> </table> <h4 id="index-health" class="position-relative d-flex align-items-center group"> Index Health <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="index-health" aria-haspopup="dialog" aria-label="Share link: Index Health"> Share link </button> </h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-gql" data-lang="gql">-- Check index health CALL db.stats.index_health('index_name'); </code></pre></div><table> <thead> <tr> <th>Metric</th> <th>Description</th> <th>Healthy Range</th> </tr> </thead> <tbody> <tr> <td><code>fragmentation</code></td> <td>Internal fragmentation</td> <td>< 0.3</td> </tr> <tr> <td><code>depth</code></td> <td>Tree depth (B-tree)</td> <td>< 5</td> </tr> <tr> <td><code>fill_factor</code></td> <td>Page fill ratio</td> <td>> 0.7</td> </tr> <tr> <td><code>bloom_false_positive_rate</code></td> <td>Bloom filter FP rate</td> <td>< 0.01</td> </tr> </tbody> </table> <h4 id="manual-statistics-update" class="position-relative d-flex align-items-center group"> Manual Statistics Update <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="manual-statistics-update" aria-haspopup="dialog" aria-label="Share link: Manual Statistics Update"> Share link </button> </h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-gql" data-lang="gql">-- Update statistics for all indexes CALL db.stats.update(); -- Update statistics for specific label CALL db.stats.update('Person'); -- Update specific index statistics CALL db.index.analyze('person_email_idx'); </code></pre></div><hr> <h3 id="cardinality-estimation" class="position-relative d-flex align-items-center group"> Cardinality Estimation <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="cardinality-estimation" aria-haspopup="dialog" aria-label="Share link: Cardinality Estimation"> Share link </button> </h3>The query optimizer uses cardinality estimates for cost-based optimization. <h4 id="histogram-statistics" class="position-relative d-flex align-items-center group"> Histogram Statistics <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="histogram-statistics" aria-haspopup="dialog" aria-label="Share link: Histogram Statistics"> Share link </button> </h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-gql" data-lang="gql">-- View histograms for a property CALL db.stats.histogram('Person', 'age'); </code></pre></div>Output: <table> <thead> <tr> <th>Column</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td><code>bucket_min</code></td> <td>Bucket lower bound</td> </tr> <tr> <td><code>bucket_max</code></td> <td>Bucket upper bound</td> </tr> <tr> <td><code>frequency</code></td> <td>Row count in bucket</td> </tr> <tr> <td><code>cumulative_frequency</code></td> <td>Cumulative row count</td> </tr> <tr> <td><code>distinct_count</code></td> <td>Distinct values in bucket</td> </tr> </tbody> </table> <h4 id="selectivity-estimates" class="position-relative d-flex align-items-center group"> Selectivity Estimates <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="selectivity-estimates" aria-haspopup="dialog" aria-label="Share link: Selectivity Estimates"> Share link </button> </h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-gql" data-lang="gql">-- Estimate predicate selectivity CALL db.stats.selectivity('Person', 'age > 30'); </code></pre></div><table> <thead> <tr> <th>Metric</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td><code>estimated_rows</code></td> <td>Rows matching predicate</td> </tr> <tr> <td><code>selectivity</code></td> <td>Fraction of total (0-1)</td> </tr> <tr> <td><code>confidence</code></td> <td>Estimate confidence (low/medium/high)</td> </tr> </tbody> </table> <h4 id="statistics-configuration" class="position-relative d-flex align-items-center group"> Statistics Configuration <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="statistics-configuration" aria-haspopup="dialog" aria-label="Share link: Statistics Configuration"> Share link </button> </h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-yaml" data-lang="yaml">statistics: auto_update: true update_threshold: 10000 # Update after N modifications sample_size: 1000 # Rows sampled for histograms histogram_buckets: 100 # Number of histogram buckets update_interval: 3600 # Auto-update interval (seconds) </code></pre></div><hr> <h3 id="transaction-statistics" class="position-relative d-flex align-items-center group"> Transaction Statistics <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="transaction-statistics" aria-haspopup="dialog" aria-label="Share link: Transaction Statistics"> Share link </button> </h3><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-gql" data-lang="gql">-- Transaction statistics CALL db.stats.transactions(); </code></pre></div><table> <thead> <tr> <th>Metric</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td><code>active_transactions</code></td> <td>Gauge</td> <td>Currently open transactions</td> </tr> <tr> <td><code>total_commits</code></td> <td>Counter</td> <td>Successful commits</td> </tr> <tr> <td><code>total_rollbacks</code></td> <td>Counter</td> <td>Rollbacks</td> </tr> <tr> <td><code>commit_rate</code></td> <td>Gauge</td> <td>Commits per second</td> </tr> <tr> <td><code>avg_transaction_time_ms</code></td> <td>Gauge</td> <td>Average transaction duration</td> </tr> <tr> <td><code>deadlock_count</code></td> <td>Counter</td> <td>Deadlock occurrences</td> </tr> <tr> <td><code>lock_wait_time_ms</code></td> <td>Counter</td> <td>Total lock wait time</td> </tr> </tbody> </table> <h4 id="lock-statistics" class="position-relative d-flex align-items-center group"> Lock Statistics <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="lock-statistics" aria-haspopup="dialog" aria-label="Share link: Lock Statistics"> Share link </button> </h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-gql" data-lang="gql">-- Current lock information CALL db.stats.locks(); </code></pre></div><table> <thead> <tr> <th>Metric</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td><code>active_locks</code></td> <td>Currently held locks</td> </tr> <tr> <td><code>waiting_locks</code></td> <td>Lock requests waiting</td> </tr> <tr> <td><code>lock_timeouts</code></td> <td>Lock timeout count</td> </tr> <tr> <td><code>avg_lock_wait_ms</code></td> <td>Average lock wait time</td> </tr> </tbody> </table> <hr> <h3 id="connection-statistics" class="position-relative d-flex align-items-center group"> Connection Statistics <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="connection-statistics" aria-haspopup="dialog" aria-label="Share link: Connection Statistics"> Share link </button> </h3><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-gql" data-lang="gql">-- Connection statistics CALL db.stats.connections(); </code></pre></div><table> <thead> <tr> <th>Metric</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td><code>active_connections</code></td> <td>Gauge</td> <td>Currently connected clients</td> </tr> <tr> <td><code>total_connections</code></td> <td>Counter</td> <td>Total connections (lifetime)</td> </tr> <tr> <td><code>connection_errors</code></td> <td>Counter</td> <td>Failed connection attempts</td> </tr> <tr> <td><code>max_connections</code></td> <td>Gauge</td> <td>Connection limit</td> </tr> <tr> <td><code>available_connections</code></td> <td>Gauge</td> <td>Available connection slots</td> </tr> </tbody> </table> <h4 id="per-client-statistics" class="position-relative d-flex align-items-center group"> Per-Client Statistics <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="per-client-statistics" aria-haspopup="dialog" aria-label="Share link: Per-Client Statistics"> Share link </button> </h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-gql" data-lang="gql">-- Statistics per connected client CALL db.stats.clients(); </code></pre></div><table> <thead> <tr> <th>Column</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td><code>client_id</code></td> <td>Client identifier</td> </tr> <tr> <td><code>user</code></td> <td>Authenticated user</td> </tr> <tr> <td><code>ip_address</code></td> <td>Client IP</td> </tr> <tr> <td><code>connected_at</code></td> <td>Connection timestamp</td> </tr> <tr> <td><code>queries_executed</code></td> <td>Query count for session</td> </tr> <tr> <td><code>bytes_sent</code></td> <td>Data sent to client</td> </tr> <tr> <td><code>bytes_received</code></td> <td>Data received from client</td> </tr> </tbody> </table> <hr> <h3 id="system-metrics" class="position-relative d-flex align-items-center group"> System Metrics <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="system-metrics" aria-haspopup="dialog" aria-label="Share link: System Metrics"> Share link </button> </h3> <h4 id="resource-utilization" class="position-relative d-flex align-items-center group"> Resource Utilization <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="resource-utilization" aria-haspopup="dialog" aria-label="Share link: Resource Utilization"> Share link </button> </h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-gql" data-lang="gql">-- System resource metrics CALL db.stats.system(); </code></pre></div><table> <thead> <tr> <th>Metric</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td><code>cpu_usage_percent</code></td> <td>Gauge</td> <td>CPU utilization</td> </tr> <tr> <td><code>memory_used_bytes</code></td> <td>Gauge</td> <td>Memory in use</td> </tr> <tr> <td><code>memory_available_bytes</code></td> <td>Gauge</td> <td>Available memory</td> </tr> <tr> <td><code>memory_heap_bytes</code></td> <td>Gauge</td> <td>Heap memory usage</td> </tr> <tr> <td><code>gc_pause_ms</code></td> <td>Histogram</td> <td>GC pause times</td> </tr> <tr> <td><code>gc_count</code></td> <td>Counter</td> <td>GC cycles</td> </tr> </tbody> </table> <h4 id="io-statistics" class="position-relative d-flex align-items-center group"> I/O Statistics <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="io-statistics" aria-haspopup="dialog" aria-label="Share link: I/O Statistics"> Share link </button> </h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-gql" data-lang="gql">-- Disk I/O statistics CALL db.stats.io(); </code></pre></div><table> <thead> <tr> <th>Metric</th> <th>Type</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td><code>read_bytes</code></td> <td>Counter</td> <td>Bytes read from disk</td> </tr> <tr> <td><code>write_bytes</code></td> <td>Counter</td> <td>Bytes written to disk</td> </tr> <tr> <td><code>read_ops</code></td> <td>Counter</td> <td>Read operations</td> </tr> <tr> <td><code>write_ops</code></td> <td>Counter</td> <td>Write operations</td> </tr> <tr> <td><code>read_latency_ms</code></td> <td>Histogram</td> <td>Read latency</td> </tr> <tr> <td><code>write_latency_ms</code></td> <td>Histogram</td> <td>Write latency</td> </tr> <tr> <td><code>fsync_count</code></td> <td>Counter</td> <td>fsync operations</td> </tr> <tr> <td><code>fsync_latency_ms</code></td> <td>Histogram</td> <td>fsync latency</td> </tr> </tbody> </table> <h4 id="buffer-pool-statistics" class="position-relative d-flex align-items-center group"> Buffer Pool Statistics <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="buffer-pool-statistics" aria-haspopup="dialog" aria-label="Share link: Buffer Pool Statistics"> Share link </button> </h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-gql" data-lang="gql">-- Buffer pool metrics CALL db.stats.buffer_pool(); </code></pre></div><table> <thead> <tr> <th>Metric</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td><code>pool_size_pages</code></td> <td>Total buffer pool pages</td> </tr> <tr> <td><code>used_pages</code></td> <td>Pages in use</td> </tr> <tr> <td><code>dirty_pages</code></td> <td>Modified pages pending write</td> </tr> <tr> <td><code>hit_rate</code></td> <td>Buffer cache hit rate</td> </tr> <tr> <td><code>evictions</code></td> <td>Page evictions</td> </tr> <tr> <td><code>reads_from_disk</code></td> <td>Cache misses</td> </tr> </tbody> </table> <hr> <h3 id="prometheus-integration" class="position-relative d-flex align-items-center group"> Prometheus Integration <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="prometheus-integration" aria-haspopup="dialog" aria-label="Share link: Prometheus Integration"> Share link </button> </h3> <h4 id="metrics-endpoint" class="position-relative d-flex align-items-center group"> Metrics Endpoint <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="metrics-endpoint" aria-haspopup="dialog" aria-label="Share link: Metrics Endpoint"> Share link </button> </h4>Geode exposes metrics in Prometheus format at <code>/metrics</code>: <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash">curl http://localhost:3141/metrics </code></pre></div> <h4 id="sample-output" class="position-relative d-flex align-items-center group"> Sample Output <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="sample-output" aria-haspopup="dialog" aria-label="Share link: Sample Output"> Share link </button> </h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-fallback" data-lang="fallback"># HELP geode_queries_total Total queries executed # TYPE geode_queries_total counter geode_queries_total{status="success"} 1234567 geode_queries_total{status="error"} 123 # HELP geode_query_duration_seconds Query execution time # TYPE geode_query_duration_seconds histogram geode_query_duration_seconds_bucket{le="0.001"} 10000 geode_query_duration_seconds_bucket{le="0.01"} 50000 geode_query_duration_seconds_bucket{le="0.1"} 100000 geode_query_duration_seconds_bucket{le="1.0"} 120000 geode_query_duration_seconds_bucket{le="+Inf"} 123456 geode_query_duration_seconds_sum 12345.67 geode_query_duration_seconds_count 123456 # HELP geode_connections_active Active client connections # TYPE geode_connections_active gauge geode_connections_active 42 # HELP geode_storage_bytes Storage size in bytes # TYPE geode_storage_bytes gauge geode_storage_bytes{type="data"} 1073741824 geode_storage_bytes{type="index"} 268435456 geode_storage_bytes{type="wal"} 134217728 # HELP geode_nodes_total Total nodes in database # TYPE geode_nodes_total gauge geode_nodes_total 1000000 # HELP geode_relationships_total Total relationships # TYPE geode_relationships_total gauge geode_relationships_total 5000000 </code></pre></div> <h4 id="prometheus-configuration" class="position-relative d-flex align-items-center group"> Prometheus Configuration <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="prometheus-configuration" aria-haspopup="dialog" aria-label="Share link: Prometheus Configuration"> Share link </button> </h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-yaml" data-lang="yaml"># prometheus.yml scrape_configs: - job_name: 'geode' static_configs: - targets: ['geode-server:3141'] metrics_path: '/metrics' scrape_interval: 15s </code></pre></div> <h4 id="available-prometheus-metrics" class="position-relative d-flex align-items-center group"> Available Prometheus Metrics <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="available-prometheus-metrics" aria-haspopup="dialog" aria-label="Share link: Available Prometheus Metrics"> Share link </button> </h4><table> <thead> <tr> <th>Metric Name</th> <th>Type</th> <th>Labels</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td><code>geode_queries_total</code></td> <td>Counter</td> <td>status</td> <td>Total queries</td> </tr> <tr> <td><code>geode_query_duration_seconds</code></td> <td>Histogram</td> <td>-</td> <td>Query latency</td> </tr> <tr> <td><code>geode_connections_active</code></td> <td>Gauge</td> <td>-</td> <td>Active connections</td> </tr> <tr> <td><code>geode_connections_total</code></td> <td>Counter</td> <td>-</td> <td>Total connections</td> </tr> <tr> <td><code>geode_transactions_total</code></td> <td>Counter</td> <td>status</td> <td>Transaction count</td> </tr> <tr> <td><code>geode_storage_bytes</code></td> <td>Gauge</td> <td>type</td> <td>Storage usage</td> </tr> <tr> <td><code>geode_nodes_total</code></td> <td>Gauge</td> <td>label</td> <td>Node count</td> </tr> <tr> <td><code>geode_relationships_total</code></td> <td>Gauge</td> <td>type</td> <td>Relationship count</td> </tr> <tr> <td><code>geode_index_size_bytes</code></td> <td>Gauge</td> <td>index</td> <td>Index sizes</td> </tr> <tr> <td><code>geode_buffer_pool_hit_ratio</code></td> <td>Gauge</td> <td>-</td> <td>Cache hit rate</td> </tr> <tr> <td><code>geode_wal_size_bytes</code></td> <td>Gauge</td> <td>-</td> <td>WAL size</td> </tr> <tr> <td><code>geode_gc_pause_seconds</code></td> <td>Histogram</td> <td>-</td> <td>GC pauses</td> </tr> </tbody> </table> <hr> <h3 id="alerting-guidelines" class="position-relative d-flex align-items-center group"> Alerting Guidelines <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="alerting-guidelines" aria-haspopup="dialog" aria-label="Share link: Alerting Guidelines"> Share link </button> </h3> <h4 id="recommended-alerts" class="position-relative d-flex align-items-center group"> Recommended Alerts <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="recommended-alerts" aria-haspopup="dialog" aria-label="Share link: Recommended Alerts"> Share link </button> </h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-yaml" data-lang="yaml"># Alert rules for Geode groups: - name: geode_alerts rules: # High query latency - alert: GeodeHighQueryLatency expr: histogram_quantile(0.95, geode_query_duration_seconds_bucket) > 1 for: 5m labels: severity: warning annotations: summary: "High query latency detected" # Connection pool exhaustion - alert: GeodeConnectionPoolLow expr: geode_connections_active / geode_connections_max > 0.9 for: 5m labels: severity: critical annotations: summary: "Connection pool nearly exhausted" # Storage space - alert: GeodeStorageHigh expr: geode_storage_bytes{type="data"} > 100e9 for: 1h labels: severity: warning annotations: summary: "Database storage exceeds 100GB" # Buffer pool hit rate - alert: GeodeLowCacheHitRate expr: geode_buffer_pool_hit_ratio < 0.9 for: 10m labels: severity: warning annotations: summary: "Buffer pool hit rate below 90%" </code></pre></div><hr> <h3 id="grafana-dashboards" class="position-relative d-flex align-items-center group"> Grafana Dashboards <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="grafana-dashboards" aria-haspopup="dialog" aria-label="Share link: Grafana Dashboards"> Share link </button> </h3> <h4 id="key-panels" class="position-relative d-flex align-items-center group"> Key Panels <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="key-panels" aria-haspopup="dialog" aria-label="Share link: Key Panels"> Share link </button> </h4>Query Performance: <ul> <li>Queries per second (rate)</li> <li>Query latency percentiles (p50, p95, p99)</li> <li>Slow query count</li> <li>Error rate</li> </ul> Storage: <ul> <li>Database size growth</li> <li>Index size breakdown</li> <li>WAL size</li> <li>Fragmentation ratio</li> </ul> Resources: <ul> <li>Buffer pool hit rate</li> <li>Memory usage</li> <li>I/O throughput</li> <li>Connection count</li> </ul> <h4 id="example-dashboard-json" class="position-relative d-flex align-items-center group"> Example Dashboard JSON <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="example-dashboard-json" aria-haspopup="dialog" aria-label="Share link: Example Dashboard JSON"> Share link </button> </h4><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-json" data-lang="json">{ "dashboard": { "title": "Geode Database", "panels": [ { "title": "Query Rate", "type": "graph", "targets": [ { "expr": "rate(geode_queries_total[5m])", "legendFormat": "{{status}}" } ] }, { "title": "Query Latency (p95)", "type": "graph", "targets": [ { "expr": "histogram_quantile(0.95, rate(geode_query_duration_seconds_bucket[5m]))" } ] } ] } } </code></pre></div><hr> <h3 id="best-practices" class="position-relative d-flex align-items-center group"> Best Practices <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="best-practices" aria-haspopup="dialog" aria-label="Share link: Best Practices"> Share link </button> </h3> <h4 id="statistics-collection" class="position-relative d-flex align-items-center group"> Statistics Collection <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="statistics-collection" aria-haspopup="dialog" aria-label="Share link: Statistics Collection"> Share link </button> </h4><ol> <li>Enable auto-update for query optimizer accuracy</li> <li>Monitor slow queries with appropriate thresholds</li> <li>Track index usage to identify unused indexes</li> <li>Set up alerting for critical metrics</li> </ol> <h4 id="performance-monitoring" class="position-relative d-flex align-items-center group"> Performance Monitoring <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="performance-monitoring" aria-haspopup="dialog" aria-label="Share link: Performance Monitoring"> Share link </button> </h4><ol> <li>Baseline metrics during normal operation</li> <li>Track trends over time</li> <li>Correlate metrics (e.g., latency vs. connection count)</li> <li>Review after changes (schema, indexes, configuration)</li> </ol> <h4 id="capacity-planning" class="position-relative d-flex align-items-center group"> Capacity Planning <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="capacity-planning" aria-haspopup="dialog" aria-label="Share link: Capacity Planning"> Share link </button> </h4><ol> <li>Monitor storage growth rate</li> <li>Track query volume trends</li> <li>Plan index storage needs</li> <li>Size buffer pool based on working set</li> </ol> <hr> <h3 id="related-documentation" class="position-relative d-flex align-items-center group"> Related Documentation <button type="button" class="h-share btn btn-link p-0 text-decoration-none link-secondary opacity-50 hover-opacity-100 transition-all ms-1" data-share-target="related-documentation" aria-haspopup="dialog" aria-label="Share link: Related Documentation"> Share link </button> </h3><ul> <li><a href="/docs/ops/observability/" >Observability Guide</a> - Monitoring setup</li> <li><a href="/docs/query/performance-tuning/" >Performance Tuning</a> - Optimization guide</li> <li><a href="/docs/reference/indexes/" >Index Types Reference</a> - Index statistics</li> <li><a href="/docs/ops/telemetry-advanced/" >Telemetry</a> - Advanced telemetry</li> </ul> <hr> Last Updated: January 28, 2026 Geode Version: v0.2.18+ Metrics Count: 50+ observable metrics