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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `metrics` mod in crate `mito2`."><title>mito2::metrics - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="mito2" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../static.files/storage-e2aeef58.js"></script><script defer src="../sidebar-items.js"></script><script defer src="../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc mod"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">Module metrics</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../mito2/index.html">mito2</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Module metrics</a></h2><h3><a href="#structs">Module Items</a></h3><ul class="block"><li><a href="#structs" title="Structs">Structs</a></li><li><a href="#constants" title="Constants">Constants</a></li></ul></section><div id="rustdoc-modnav"><h2 class="in-crate"><a href="../index.html">In crate mito2</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../index.html">mito2</a></div><h1>Module <span>metrics</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../src/mito2/metrics.rs.html#15-640">Source</a> </span></div><h2 id="structs" class="section-header">Structs<a href="#structs" class="anchor">§</a></h2><dl class="item-table"><dt><a class="struct" href="struct.CACHE_BYTES.html" title="struct mito2::metrics::CACHE_BYTES">CACHE_<wbr>BYTES</a></dt><dd>Cache size in bytes.</dd><dt><a class="struct" href="struct.CACHE_EVICTION.html" title="struct mito2::metrics::CACHE_EVICTION">CACHE_<wbr>EVICTION</a></dt><dd>Cache eviction counter, labeled with cache type and eviction reason.</dd><dt><a class="struct" href="struct.CACHE_FILL_DOWNLOADED_FILES.html" title="struct mito2::metrics::CACHE_FILL_DOWNLOADED_FILES">CACHE_<wbr>FILL_<wbr>DOWNLOADED_<wbr>FILES</a></dt><dd>Total number of files downloaded during cache fill on region open.</dd><dt><a class="struct" href="struct.CACHE_FILL_PENDING_FILES.html" title="struct mito2::metrics::CACHE_FILL_PENDING_FILES">CACHE_<wbr>FILL_<wbr>PENDING_<wbr>FILES</a></dt><dd>Number of files pending download during cache fill on region open.</dd><dt><a class="struct" href="struct.CACHE_HIT.html" title="struct mito2::metrics::CACHE_HIT">CACHE_<wbr>HIT</a></dt><dd>Cache hit counter.</dd><dt><a class="struct" href="struct.CACHE_MISS.html" title="struct mito2::metrics::CACHE_MISS">CACHE_<wbr>MISS</a></dt><dd>Cache miss counter.</dd><dt><a class="struct" href="struct.COMPACTION_ELAPSED_TOTAL.html" title="struct mito2::metrics::COMPACTION_ELAPSED_TOTAL">COMPACTION_<wbr>ELAPSED_<wbr>TOTAL</a></dt><dd>Timer of whole compaction task.</dd><dt><a class="struct" href="struct.COMPACTION_FAILURE_COUNT.html" title="struct mito2::metrics::COMPACTION_FAILURE_COUNT">COMPACTION_<wbr>FAILURE_<wbr>COUNT</a></dt><dd>Counter of failed compaction task.</dd><dt><a class="struct" href="struct.COMPACTION_INPUT_BYTES.html" title="struct mito2::metrics::COMPACTION_INPUT_BYTES">COMPACTION_<wbr>INPUT_<wbr>BYTES</a></dt><dd>Counter for compaction input file size.</dd><dt><a class="struct" href="struct.COMPACTION_MEMORY_IN_USE.html" title="struct mito2::metrics::COMPACTION_MEMORY_IN_USE">COMPACTION_<wbr>MEMORY_<wbr>IN_<wbr>USE</a></dt><dd>Bytes reserved by compaction memory manager.</dd><dt><a class="struct" href="struct.COMPACTION_MEMORY_LIMIT.html" title="struct mito2::metrics::COMPACTION_MEMORY_LIMIT">COMPACTION_<wbr>MEMORY_<wbr>LIMIT</a></dt><dd>Configured compaction memory limit.</dd><dt><a class="struct" href="struct.COMPACTION_MEMORY_REJECTED.html" title="struct mito2::metrics::COMPACTION_MEMORY_REJECTED">COMPACTION_<wbr>MEMORY_<wbr>REJECTED</a></dt><dd>Counter of rejected compaction memory allocations.</dd><dt><a class="struct" href="struct.COMPACTION_MEMORY_WAIT.html" title="struct mito2::metrics::COMPACTION_MEMORY_WAIT">COMPACTION_<wbr>MEMORY_<wbr>WAIT</a></dt><dd>Wait time to obtain compaction memory.</dd><dt><a class="struct" href="struct.COMPACTION_OUTPUT_BYTES.html" title="struct mito2::metrics::COMPACTION_OUTPUT_BYTES">COMPACTION_<wbr>OUTPUT_<wbr>BYTES</a></dt><dd>Counter for compaction output file size.</dd><dt><a class="struct" href="struct.COMPACTION_REQUEST_COUNT.html" title="struct mito2::metrics::COMPACTION_REQUEST_COUNT">COMPACTION_<wbr>REQUEST_<wbr>COUNT</a></dt><dd>Counter of all requested compaction task.</dd><dt><a class="struct" href="struct.COMPACTION_STAGE_ELAPSED.html" title="struct mito2::metrics::COMPACTION_STAGE_ELAPSED">COMPACTION_<wbr>STAGE_<wbr>ELAPSED</a></dt><dd>Timer of different stages in compaction.</dd><dt><a class="struct" href="struct.FLUSH_BYTES_TOTAL.html" title="struct mito2::metrics::FLUSH_BYTES_TOTAL">FLUSH_<wbr>BYTES_<wbr>TOTAL</a></dt><dd>Histogram of flushed bytes.</dd><dt><a class="struct" href="struct.FLUSH_ELAPSED.html" title="struct mito2::metrics::FLUSH_ELAPSED">FLUSH_<wbr>ELAPSED</a></dt><dd>Elapsed time of a flush job.</dd><dt><a class="struct" href="struct.FLUSH_FAILURE_TOTAL.html" title="struct mito2::metrics::FLUSH_FAILURE_TOTAL">FLUSH_<wbr>FAILURE_<wbr>TOTAL</a></dt><dd>Counter of scheduled failed flush jobs.</dd><dt><a class="struct" href="struct.FLUSH_FILE_TOTAL.html" title="struct mito2::metrics::FLUSH_FILE_TOTAL">FLUSH_<wbr>FILE_<wbr>TOTAL</a></dt><dd>Counter of flush files.</dd><dt><a class="struct" href="struct.FLUSH_REQUESTS_TOTAL.html" title="struct mito2::metrics::FLUSH_REQUESTS_TOTAL">FLUSH_<wbr>REQUESTS_<wbr>TOTAL</a></dt><dd>Counter of scheduled flush requests.
Note that the flush scheduler may merge some flush requests.</dd><dt><a class="struct" href="struct.GC_DELETE_FILE_CNT.html" title="struct mito2::metrics::GC_DELETE_FILE_CNT">GC_<wbr>DELETE_<wbr>FILE_<wbr>CNT</a></dt><dd>Counter for the number of files deleted by the GC worker.</dd><dt><a class="struct" href="struct.GC_DURATION_SECONDS.html" title="struct mito2::metrics::GC_DURATION_SECONDS">GC_<wbr>DURATION_<wbr>SECONDS</a></dt><dd>Histogram for GC operation duration by stage.</dd><dt><a class="struct" href="struct.GC_ERRORS_TOTAL.html" title="struct mito2::metrics::GC_ERRORS_TOTAL">GC_<wbr>ERRORS_<wbr>TOTAL</a></dt><dd>Counter for GC errors by type.</dd><dt><a class="struct" href="struct.GC_FILES_DELETED_TOTAL.html" title="struct mito2::metrics::GC_FILES_DELETED_TOTAL">GC_<wbr>FILES_<wbr>DELETED_<wbr>TOTAL</a></dt><dd>Counter for total files deleted by GC, labeled by file type.</dd><dt><a class="struct" href="struct.GC_ORPHANED_INDEX_FILES.html" title="struct mito2::metrics::GC_ORPHANED_INDEX_FILES">GC_<wbr>ORPHANED_<wbr>INDEX_<wbr>FILES</a></dt><dd>Counter for the number of orphaned index files found by GC.</dd><dt><a class="struct" href="struct.GC_REF_FILE_CNT.html" title="struct mito2::metrics::GC_REF_FILE_CNT">GC_<wbr>REF_<wbr>FILE_<wbr>CNT</a></dt><dd>Number of ref files</dd><dt><a class="struct" href="struct.GC_RUNS_TOTAL.html" title="struct mito2::metrics::GC_RUNS_TOTAL">GC_<wbr>RUNS_<wbr>TOTAL</a></dt><dd>Counter for GC runs by mode.</dd><dt><a class="struct" href="struct.GC_SKIPPED_UNPARSABLE_FILES.html" title="struct mito2::metrics::GC_SKIPPED_UNPARSABLE_FILES">GC_<wbr>SKIPPED_<wbr>UNPARSABLE_<wbr>FILES</a></dt><dd>Counter for the number of unparsable files skipped by GC.</dd><dt><a class="struct" href="struct.HANDLE_REQUEST_ELAPSED.html" title="struct mito2::metrics::HANDLE_REQUEST_ELAPSED">HANDLE_<wbr>REQUEST_<wbr>ELAPSED</a></dt><dd>Elapsed time to handle requests.</dd><dt><a class="struct" href="struct.INDEX_APPLY_ELAPSED.html" title="struct mito2::metrics::INDEX_APPLY_ELAPSED">INDEX_<wbr>APPLY_<wbr>ELAPSED</a></dt><dd>Timer of index application.</dd><dt><a class="struct" href="struct.INDEX_APPLY_MEMORY_USAGE.html" title="struct mito2::metrics::INDEX_APPLY_MEMORY_USAGE">INDEX_<wbr>APPLY_<wbr>MEMORY_<wbr>USAGE</a></dt><dd>Gauge of index apply memory usage.</dd><dt><a class="struct" href="struct.INDEX_CREATE_BYTES_TOTAL.html" title="struct mito2::metrics::INDEX_CREATE_BYTES_TOTAL">INDEX_<wbr>CREATE_<wbr>BYTES_<wbr>TOTAL</a></dt><dd>Counter of created index bytes.</dd><dt><a class="struct" href="struct.INDEX_CREATE_ELAPSED.html" title="struct mito2::metrics::INDEX_CREATE_ELAPSED">INDEX_<wbr>CREATE_<wbr>ELAPSED</a></dt><dd>Timer of index creation.</dd><dt><a class="struct" href="struct.INDEX_CREATE_MEMORY_USAGE.html" title="struct mito2::metrics::INDEX_CREATE_MEMORY_USAGE">INDEX_<wbr>CREATE_<wbr>MEMORY_<wbr>USAGE</a></dt><dd>Gauge of index create memory usage.</dd><dt><a class="struct" href="struct.INDEX_CREATE_ROWS_TOTAL.html" title="struct mito2::metrics::INDEX_CREATE_ROWS_TOTAL">INDEX_<wbr>CREATE_<wbr>ROWS_<wbr>TOTAL</a></dt><dd>Counter of rows indexed.</dd><dt><a class="struct" href="struct.INDEX_INTERMEDIATE_FLUSH_OP_TOTAL.html" title="struct mito2::metrics::INDEX_INTERMEDIATE_FLUSH_OP_TOTAL">INDEX_<wbr>INTERMEDIATE_<wbr>FLUSH_<wbr>OP_<wbr>TOTAL</a></dt><dd>Counter of flush operations on intermediate files.</dd><dt><a class="struct" href="struct.INDEX_INTERMEDIATE_READ_BYTES_TOTAL.html" title="struct mito2::metrics::INDEX_INTERMEDIATE_READ_BYTES_TOTAL">INDEX_<wbr>INTERMEDIATE_<wbr>READ_<wbr>BYTES_<wbr>TOTAL</a></dt><dd>Counter of read bytes on intermediate files.</dd><dt><a class="struct" href="struct.INDEX_INTERMEDIATE_READ_OP_TOTAL.html" title="struct mito2::metrics::INDEX_INTERMEDIATE_READ_OP_TOTAL">INDEX_<wbr>INTERMEDIATE_<wbr>READ_<wbr>OP_<wbr>TOTAL</a></dt><dd>Counter of read operations on intermediate files.</dd><dt><a class="struct" href="struct.INDEX_INTERMEDIATE_SEEK_OP_TOTAL.html" title="struct mito2::metrics::INDEX_INTERMEDIATE_SEEK_OP_TOTAL">INDEX_<wbr>INTERMEDIATE_<wbr>SEEK_<wbr>OP_<wbr>TOTAL</a></dt><dd>Counter of seek operations on intermediate files.</dd><dt><a class="struct" href="struct.INDEX_INTERMEDIATE_WRITE_BYTES_TOTAL.html" title="struct mito2::metrics::INDEX_INTERMEDIATE_WRITE_BYTES_TOTAL">INDEX_<wbr>INTERMEDIATE_<wbr>WRITE_<wbr>BYTES_<wbr>TOTAL</a></dt><dd>Counter of write bytes on intermediate files.</dd><dt><a class="struct" href="struct.INDEX_INTERMEDIATE_WRITE_OP_TOTAL.html" title="struct mito2::metrics::INDEX_INTERMEDIATE_WRITE_OP_TOTAL">INDEX_<wbr>INTERMEDIATE_<wbr>WRITE_<wbr>OP_<wbr>TOTAL</a></dt><dd>Counter of write operations on intermediate files.</dd><dt><a class="struct" href="struct.INDEX_IO_BYTES_TOTAL.html" title="struct mito2::metrics::INDEX_IO_BYTES_TOTAL">INDEX_<wbr>IO_<wbr>BYTES_<wbr>TOTAL</a></dt><dd>Counter of r/w bytes on index related IO operations.</dd><dt><a class="struct" href="struct.INDEX_IO_OP_TOTAL.html" title="struct mito2::metrics::INDEX_IO_OP_TOTAL">INDEX_<wbr>IO_<wbr>OP_<wbr>TOTAL</a></dt><dd>Counter of r/w operations on index related IO operations, e.g. read, write, seek and flush.</dd><dt><a class="struct" href="struct.INDEX_PUFFIN_FLUSH_OP_TOTAL.html" title="struct mito2::metrics::INDEX_PUFFIN_FLUSH_OP_TOTAL">INDEX_<wbr>PUFFIN_<wbr>FLUSH_<wbr>OP_<wbr>TOTAL</a></dt><dd>Counter of flush operations on puffin files.</dd><dt><a class="struct" href="struct.INDEX_PUFFIN_READ_BYTES_TOTAL.html" title="struct mito2::metrics::INDEX_PUFFIN_READ_BYTES_TOTAL">INDEX_<wbr>PUFFIN_<wbr>READ_<wbr>BYTES_<wbr>TOTAL</a></dt><dd>Counter of read bytes on puffin files.</dd><dt><a class="struct" href="struct.INDEX_PUFFIN_READ_OP_TOTAL.html" title="struct mito2::metrics::INDEX_PUFFIN_READ_OP_TOTAL">INDEX_<wbr>PUFFIN_<wbr>READ_<wbr>OP_<wbr>TOTAL</a></dt><dd>Counter of read operations on puffin files.</dd><dt><a class="struct" href="struct.INDEX_PUFFIN_SEEK_OP_TOTAL.html" title="struct mito2::metrics::INDEX_PUFFIN_SEEK_OP_TOTAL">INDEX_<wbr>PUFFIN_<wbr>SEEK_<wbr>OP_<wbr>TOTAL</a></dt><dd>Counter of seek operations on puffin files.</dd><dt><a class="struct" href="struct.INDEX_PUFFIN_WRITE_BYTES_TOTAL.html" title="struct mito2::metrics::INDEX_PUFFIN_WRITE_BYTES_TOTAL">INDEX_<wbr>PUFFIN_<wbr>WRITE_<wbr>BYTES_<wbr>TOTAL</a></dt><dd>Counter of write bytes on puffin files.</dd><dt><a class="struct" href="struct.INDEX_PUFFIN_WRITE_OP_TOTAL.html" title="struct mito2::metrics::INDEX_PUFFIN_WRITE_OP_TOTAL">INDEX_<wbr>PUFFIN_<wbr>WRITE_<wbr>OP_<wbr>TOTAL</a></dt><dd>Counter of write operations on puffin files.</dd><dt><a class="struct" href="struct.INFLIGHT_COMPACTION_COUNT.html" title="struct mito2::metrics::INFLIGHT_COMPACTION_COUNT">INFLIGHT_<wbr>COMPACTION_<wbr>COUNT</a></dt><dd>Gauge for inflight compaction tasks.</dd><dt><a class="struct" href="struct.INFLIGHT_FLUSH_COUNT.html" title="struct mito2::metrics::INFLIGHT_FLUSH_COUNT">INFLIGHT_<wbr>FLUSH_<wbr>COUNT</a></dt><dd>Gauge for inflight flush tasks.</dd><dt><a class="struct" href="struct.IN_PROGRESS_SCAN.html" title="struct mito2::metrics::IN_PROGRESS_SCAN">IN_<wbr>PROGRESS_<wbr>SCAN</a></dt><dd>Number of in-progress scan per partition.</dd><dt><a class="struct" href="struct.MANIFEST_OP_ELAPSED.html" title="struct mito2::metrics::MANIFEST_OP_ELAPSED">MANIFEST_<wbr>OP_<wbr>ELAPSED</a></dt><dd>Elapsed time of manifest operation. Labeled with “op”.</dd><dt><a class="struct" href="struct.MEMTABLE_ACTIVE_FIELD_BUILDER_COUNT.html" title="struct mito2::metrics::MEMTABLE_ACTIVE_FIELD_BUILDER_COUNT">MEMTABLE_<wbr>ACTIVE_<wbr>FIELD_<wbr>BUILDER_<wbr>COUNT</a></dt><dd>Active field builder count in TimeSeriesMemtable</dd><dt><a class="struct" href="struct.MEMTABLE_ACTIVE_SERIES_COUNT.html" title="struct mito2::metrics::MEMTABLE_ACTIVE_SERIES_COUNT">MEMTABLE_<wbr>ACTIVE_<wbr>SERIES_<wbr>COUNT</a></dt><dd>Active series count in TimeSeriesMemtable</dd><dt><a class="struct" href="struct.MEMTABLE_DICT_BYTES.html" title="struct mito2::metrics::MEMTABLE_DICT_BYTES">MEMTABLE_<wbr>DICT_<wbr>BYTES</a></dt><dd>Global memtable dictionary size in bytes.</dd><dt><a class="struct" href="struct.MERGE_FILTER_ROWS_TOTAL.html" title="struct mito2::metrics::MERGE_FILTER_ROWS_TOTAL">MERGE_<wbr>FILTER_<wbr>ROWS_<wbr>TOTAL</a></dt><dd>Counter of filtered rows during merge.</dd><dt><a class="struct" href="struct.PARTITION_TREE_DATA_BUFFER_FREEZE_STAGE_ELAPSED.html" title="struct mito2::metrics::PARTITION_TREE_DATA_BUFFER_FREEZE_STAGE_ELAPSED">PARTITION_<wbr>TREE_<wbr>DATA_<wbr>BUFFER_<wbr>FREEZE_<wbr>STAGE_<wbr>ELAPSED</a></dt><dd>Partition tree memtable data buffer freeze metrics</dd><dt><a class="struct" href="struct.PARTITION_TREE_READ_STAGE_ELAPSED.html" title="struct mito2::metrics::PARTITION_TREE_READ_STAGE_ELAPSED">PARTITION_<wbr>TREE_<wbr>READ_<wbr>STAGE_<wbr>ELAPSED</a></dt><dd>Partition tree memtable read path metrics</dd><dt><a class="struct" href="struct.PRECISE_FILTER_ROWS_TOTAL.html" title="struct mito2::metrics::PRECISE_FILTER_ROWS_TOTAL">PRECISE_<wbr>FILTER_<wbr>ROWS_<wbr>TOTAL</a></dt><dd>Counter of filtered rows by precise filter.</dd><dt><a class="struct" href="struct.PRUNER_ACTIVE_BUILDERS.html" title="struct mito2::metrics::PRUNER_ACTIVE_BUILDERS">PRUNER_<wbr>ACTIVE_<wbr>BUILDERS</a></dt><dd>Gauge for active file range builders in the pruner.</dd><dt><a class="struct" href="struct.READ_BATCHES_RETURN.html" title="struct mito2::metrics::READ_BATCHES_RETURN">READ_<wbr>BATCHES_<wbr>RETURN</a></dt><dd>Histogram for the number of batches returned per query.</dd><dt><a class="struct" href="struct.READ_ROWS_IN_ROW_GROUP_TOTAL.html" title="struct mito2::metrics::READ_ROWS_IN_ROW_GROUP_TOTAL">READ_<wbr>ROWS_<wbr>IN_<wbr>ROW_<wbr>GROUP_<wbr>TOTAL</a></dt><dt><a class="struct" href="struct.READ_ROWS_RETURN.html" title="struct mito2::metrics::READ_ROWS_RETURN">READ_<wbr>ROWS_<wbr>RETURN</a></dt><dd>Histogram for the number of rows returned per query.</dd><dt><a class="struct" href="struct.READ_ROWS_TOTAL.html" title="struct mito2::metrics::READ_ROWS_TOTAL">READ_<wbr>ROWS_<wbr>TOTAL</a></dt><dd>Counter of rows read from different source.</dd><dt><a class="struct" href="struct.READ_ROW_GROUPS_TOTAL.html" title="struct mito2::metrics::READ_ROW_GROUPS_TOTAL">READ_<wbr>ROW_<wbr>GROUPS_<wbr>TOTAL</a></dt><dd>Counter of row groups read.</dd><dt><a class="struct" href="struct.READ_SST_COUNT.html" title="struct mito2::metrics::READ_SST_COUNT">READ_<wbr>SST_<wbr>COUNT</a></dt><dd>Histogram for the number of SSTs to scan per query.</dd><dt><a class="struct" href="struct.READ_STAGE_ELAPSED.html" title="struct mito2::metrics::READ_STAGE_ELAPSED">READ_<wbr>STAGE_<wbr>ELAPSED</a></dt><dd>Timer of different stages in query.</dd><dt><a class="struct" href="struct.READ_STAGE_FETCH_PAGES.html" title="struct mito2::metrics::READ_STAGE_FETCH_PAGES">READ_<wbr>STAGE_<wbr>FETCH_<wbr>PAGES</a></dt><dt><a class="struct" href="struct.REGION_COUNT.html" title="struct mito2::metrics::REGION_COUNT">REGION_<wbr>COUNT</a></dt><dd>Gauge for open regions in each worker.</dd><dt><a class="struct" href="struct.REGION_WORKER_HANDLE_WRITE_ELAPSED.html" title="struct mito2::metrics::REGION_WORKER_HANDLE_WRITE_ELAPSED">REGION_<wbr>WORKER_<wbr>HANDLE_<wbr>WRITE_<wbr>ELAPSED</a></dt><dt><a class="struct" href="struct.REQUEST_WAIT_TIME.html" title="struct mito2::metrics::REQUEST_WAIT_TIME">REQUEST_<wbr>WAIT_<wbr>TIME</a></dt><dd>Time waiting for requests to be handled by the region worker.</dd><dt><a class="struct" href="struct.SCAN_MEMORY_USAGE_BYTES.html" title="struct mito2::metrics::SCAN_MEMORY_USAGE_BYTES">SCAN_<wbr>MEMORY_<wbr>USAGE_<wbr>BYTES</a></dt><dd>Gauge for scan memory usage in bytes.</dd><dt><a class="struct" href="struct.SCAN_REQUESTS_REJECTED_TOTAL.html" title="struct mito2::metrics::SCAN_REQUESTS_REJECTED_TOTAL">SCAN_<wbr>REQUESTS_<wbr>REJECTED_<wbr>TOTAL</a></dt><dd>Counter of rejected scan requests due to memory limit.</dd><dt><a class="struct" href="struct.StagerMetrics.html" title="struct mito2::metrics::StagerMetrics">Stager<wbr>Metrics</a></dt><dd>Stager notifier to collect metrics.</dd><dt><a class="struct" href="struct.UPLOAD_BYTES_TOTAL.html" title="struct mito2::metrics::UPLOAD_BYTES_TOTAL">UPLOAD_<wbr>BYTES_<wbr>TOTAL</a></dt><dd>Upload bytes counter.</dd><dt><a class="struct" href="struct.WRITE_BUFFER_BYTES.html" title="struct mito2::metrics::WRITE_BUFFER_BYTES">WRITE_<wbr>BUFFER_<wbr>BYTES</a></dt><dd>Global write buffer size in bytes.</dd><dt><a class="struct" href="struct.WRITE_CACHE_DOWNLOAD_BYTES_TOTAL.html" title="struct mito2::metrics::WRITE_CACHE_DOWNLOAD_BYTES_TOTAL">WRITE_<wbr>CACHE_<wbr>DOWNLOAD_<wbr>BYTES_<wbr>TOTAL</a></dt><dd>Download bytes counter in the write cache.</dd><dt><a class="struct" href="struct.WRITE_CACHE_DOWNLOAD_ELAPSED.html" title="struct mito2::metrics::WRITE_CACHE_DOWNLOAD_ELAPSED">WRITE_<wbr>CACHE_<wbr>DOWNLOAD_<wbr>ELAPSED</a></dt><dd>Timer of the downloading task in the write cache.</dd><dt><a class="struct" href="struct.WRITE_CACHE_INFLIGHT_DOWNLOAD.html" title="struct mito2::metrics::WRITE_CACHE_INFLIGHT_DOWNLOAD">WRITE_<wbr>CACHE_<wbr>INFLIGHT_<wbr>DOWNLOAD</a></dt><dd>Number of inflight download tasks.</dd><dt><a class="struct" href="struct.WRITE_REJECT_TOTAL.html" title="struct mito2::metrics::WRITE_REJECT_TOTAL">WRITE_<wbr>REJECT_<wbr>TOTAL</a></dt><dd>Counter of rejected write requests.</dd><dt><a class="struct" href="struct.WRITE_ROWS_TOTAL.html" title="struct mito2::metrics::WRITE_ROWS_TOTAL">WRITE_<wbr>ROWS_<wbr>TOTAL</a></dt><dd>Counter of rows to write.</dd><dt><a class="struct" href="struct.WRITE_STAGE_ELAPSED.html" title="struct mito2::metrics::WRITE_STAGE_ELAPSED">WRITE_<wbr>STAGE_<wbr>ELAPSED</a></dt><dd>Elapsed time of each write stage.</dd><dt><a class="struct" href="struct.WRITE_STALLING.html" title="struct mito2::metrics::WRITE_STALLING">WRITE_<wbr>STALLING</a></dt><dd>Number of stalling write requests in each worker.</dd><dt><a class="struct" href="struct.WRITE_STALL_TOTAL.html" title="struct mito2::metrics::WRITE_STALL_TOTAL">WRITE_<wbr>STALL_<wbr>TOTAL</a></dt><dd>Total number of stalled write requests.</dd></dl><h2 id="constants" class="section-header">Constants<a href="#constants" class="anchor">§</a></h2><dl class="item-table"><dt><a class="constant" href="constant.CACHE_EVICTION_CAUSE.html" title="constant mito2::metrics::CACHE_EVICTION_CAUSE">CACHE_<wbr>EVICTION_<wbr>CAUSE</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dt><a class="constant" href="constant.FILE_TYPE_LABEL.html" title="constant mito2::metrics::FILE_TYPE_LABEL">FILE_<wbr>TYPE_<wbr>LABEL</a></dt><dd>File type label.</dd><dt><a class="constant" href="constant.FLUSH_REASON.html" title="constant mito2::metrics::FLUSH_REASON">FLUSH_<wbr>REASON</a></dt><dd>Reason to flush.</dd><dt><a class="constant" href="constant.PARTITION_LABEL.html" title="constant mito2::metrics::PARTITION_LABEL">PARTITION_<wbr>LABEL</a></dt><dd>Partition label.</dd><dt><a class="constant" href="constant.RECYCLE_TYPE.html" title="constant mito2::metrics::RECYCLE_TYPE">RECYCLE_<wbr>TYPE</a></dt><dd>Recycle bin type label.</dd><dt><a class="constant" href="constant.STAGE_LABEL.html" title="constant mito2::metrics::STAGE_LABEL">STAGE_<wbr>LABEL</a></dt><dd>Stage label.</dd><dt><a class="constant" href="constant.STAGING_TYPE.html" title="constant mito2::metrics::STAGING_TYPE">STAGING_<wbr>TYPE</a></dt><dd>Staging dir type label.</dd><dt><a class="constant" href="constant.TYPE_LABEL.html" title="constant mito2::metrics::TYPE_LABEL">TYPE_<wbr>LABEL</a></dt><dd>Type label.</dd><dt><a class="constant" href="constant.WORKER_LABEL.html" title="constant mito2::metrics::WORKER_LABEL">WORKER_<wbr>LABEL</a></dt><dd>Region worker id label.</dd></dl></section></div></main></body></html>
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