"indexDetails" : {
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"files_id_1" : {
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"metadata" : {
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"formatVersion" : NumberInt(8)
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},
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"creationString" : "access_pattern_hint=none,allocation_size=4KB,app_metadata=(formatVersion=8),assert=(commit_timestamp=none,durable_timestamp=none,read_timestamp=none,write_timestamp=off),block_allocation=best,block_compressor=,cache_resident=false,checksum=on,colgroups=,collator=,columns=,dictionary=0,encryption=(keyid=,name=),exclusive=false,extractor=,format=btree,huffman_key=,huffman_value=,ignore_in_memory_cache_size=false,immutable=false,import=(enabled=false,file_metadata=,repair=false),internal_item_max=0,internal_key_max=0,internal_key_truncate=true,internal_page_max=16k,key_format=u,key_gap=10,leaf_item_max=0,leaf_key_max=0,leaf_page_max=16k,leaf_value_max=0,log=(enabled=true),lsm=(auto_throttle=true,bloom=true,bloom_bit_count=16,bloom_config=,bloom_hash_count=8,bloom_oldest=false,chunk_count_limit=0,chunk_max=5GB,chunk_size=10MB,merge_custom=(prefix=,start_generation=0,suffix=),merge_max=15,merge_min=0),memory_page_image_max=0,memory_page_max=5MB,os_cache_dirty_max=0,os_cache_max=0,prefix_compression=true,prefix_compression_min=4,readonly=false,source=,split_deepen_min_child=0,split_deepen_per_child=0,split_pct=90,tiered_object=false,tiered_storage=(auth_token=,bucket=,bucket_prefix=,local_retention=300,name=,object_target_size=10M),type=file,value_format=u,verbose=[],write_timestamp_usage=none",
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"type" : "file",
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"uri" : "statistics:table:index-10--1222951302793732432",
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"LSM" : {
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"bloom filter false positives" : NumberInt(0),
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"bloom filter hits" : NumberInt(0),
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"bloom filter misses" : NumberInt(0),
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"bloom filter pages evicted from cache" : NumberInt(0),
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"bloom filter pages read into cache" : NumberInt(0),
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"bloom filters in the LSM tree" : NumberInt(0),
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"chunks in the LSM tree" : NumberInt(0),
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"highest merge generation in the LSM tree" : NumberInt(0),
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"queries that could have benefited from a Bloom filter that did not exist" : NumberInt(0),
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"sleep for LSM checkpoint throttle" : NumberInt(0),
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"sleep for LSM merge throttle" : NumberInt(0),
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"total size of bloom filters" : NumberInt(0)
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},
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"block-manager" : {
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"allocations requiring file extension" : NumberInt(128),
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"blocks allocated" : NumberInt(329),
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"blocks freed" : NumberInt(62),
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"checkpoint size" : NumberInt(1273856),
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"file allocation unit size" : NumberInt(4096),
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"file bytes available for reuse" : NumberInt(24576),
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"file magic number" : NumberInt(120897),
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"file major version number" : NumberInt(1),
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"file size in bytes" : NumberInt(1314816),
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"minor version number" : NumberInt(0)
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},
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"btree" : {
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"btree checkpoint generation" : NumberInt(14415),
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"btree clean tree checkpoint expiration time" : NumberLong(9223372036854775807),
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"column-store fixed-size leaf pages" : NumberInt(0),
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"column-store internal pages" : NumberInt(0),
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"column-store variable-size RLE encoded values" : NumberInt(0),
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"column-store variable-size deleted values" : NumberInt(0),
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"column-store variable-size leaf pages" : NumberInt(0),
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"fixed-record size" : NumberInt(0),
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"maximum internal page key size" : NumberInt(1474),
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"maximum internal page size" : NumberInt(16384),
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"maximum leaf page key size" : NumberInt(1474),
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"maximum leaf page size" : NumberInt(16384),
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"maximum leaf page value size" : NumberInt(7372),
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"maximum tree depth" : NumberInt(3),
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"number of key/value pairs" : NumberInt(0),
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"overflow pages" : NumberInt(0),
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"pages rewritten by compaction" : NumberInt(0),
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"row-store empty values" : NumberInt(0),
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"row-store internal pages" : NumberInt(0),
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"row-store leaf pages" : NumberInt(0)
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},
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"cache" : {
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"bytes currently in the cache" : NumberInt(1575988),
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"bytes dirty in the cache cumulative" : NumberInt(6602519),
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"bytes read into cache" : NumberInt(1257317),
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"bytes written from cache" : NumberInt(1638751),
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"checkpoint blocked page eviction" : NumberInt(0),
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"checkpoint of history store file blocked non-history store page eviction" : NumberInt(0),
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"data source pages selected for eviction unable to be evicted" : NumberInt(1),
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"eviction walk passes of a file" : NumberInt(30),
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"eviction walk target pages histogram - 0-9" : NumberInt(17),
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"eviction walk target pages histogram - 10-31" : NumberInt(13),
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"eviction walk target pages histogram - 128 and higher" : NumberInt(0),
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"eviction walk target pages histogram - 32-63" : NumberInt(0),
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"eviction walk target pages histogram - 64-128" : NumberInt(0),
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"eviction walk target pages reduced due to history store cache pressure" : NumberInt(0),
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"eviction walks abandoned" : NumberInt(5),
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"eviction walks gave up because they restarted their walk twice" : NumberInt(13),
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"eviction walks gave up because they saw too many pages and found no candidates" : NumberInt(5),
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"eviction walks gave up because they saw too many pages and found too few candidates" : NumberInt(1),
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"eviction walks reached end of tree" : NumberInt(39),
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"eviction walks restarted" : NumberInt(0),
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"eviction walks started from root of tree" : NumberInt(25),
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"eviction walks started from saved location in tree" : NumberInt(5),
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"hazard pointer blocked page eviction" : NumberInt(1),
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"history store table insert calls" : NumberInt(0),
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"history store table insert calls that returned restart" : NumberInt(0),
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"history store table out-of-order resolved updates that lose their durable timestamp" : NumberInt(0),
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"history store table out-of-order updates that were fixed up by reinserting with the fixed timestamp" : NumberInt(0),
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"history store table reads" : NumberInt(0),
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"history store table reads missed" : NumberInt(0),
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"history store table reads requiring squashed modifies" : NumberInt(0),
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"history store table truncation by rollback to stable to remove an unstable update" : NumberInt(0),
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"history store table truncation by rollback to stable to remove an update" : NumberInt(0),
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"history store table truncation to remove an update" : NumberInt(0),
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"history store table truncation to remove range of updates due to key being removed from the data page during reconciliation" : NumberInt(0),
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"history store table truncation to remove range of updates due to out-of-order timestamp update on data page" : NumberInt(0),
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"history store table writes requiring squashed modifies" : NumberInt(0),
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"in-memory page passed criteria to be split" : NumberInt(0),
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"in-memory page splits" : NumberInt(0),
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"internal pages evicted" : NumberInt(0),
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"internal pages split during eviction" : NumberInt(0),
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"leaf pages split during eviction" : NumberInt(1),
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"modified pages evicted" : NumberInt(2),
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"overflow pages read into cache" : NumberInt(0),
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"page split during eviction deepened the tree" : NumberInt(0),
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"page written requiring history store records" : NumberInt(0),
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"pages read into cache" : NumberInt(87),
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"pages read into cache after truncate" : NumberInt(0),
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"pages read into cache after truncate in prepare state" : NumberInt(0),
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"pages requested from the cache" : NumberInt(102194),
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"pages seen by eviction walk" : NumberInt(626),
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"pages written from cache" : NumberInt(203),
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"pages written requiring in-memory restoration" : NumberInt(0),
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"tracked dirty bytes in the cache" : NumberInt(0),
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"unmodified pages evicted" : NumberInt(57)
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},
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"cache_walk" : {
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"Average difference between current eviction generation when the page was last considered" : NumberInt(0),
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"Average on-disk page image size seen" : NumberInt(0),
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"Average time in cache for pages that have been visited by the eviction server" : NumberInt(0),
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"Average time in cache for pages that have not been visited by the eviction server" : NumberInt(0),
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"Clean pages currently in cache" : NumberInt(0),
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"Current eviction generation" : NumberInt(0),
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"Dirty pages currently in cache" : NumberInt(0),
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"Entries in the root page" : NumberInt(0),
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"Internal pages currently in cache" : NumberInt(0),
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"Leaf pages currently in cache" : NumberInt(0),
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"Maximum difference between current eviction generation when the page was last considered" : NumberInt(0),
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"Maximum page size seen" : NumberInt(0),
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"Minimum on-disk page image size seen" : NumberInt(0),
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"Number of pages never visited by eviction server" : NumberInt(0),
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"On-disk page image sizes smaller than a single allocation unit" : NumberInt(0),
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"Pages created in memory and never written" : NumberInt(0),
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"Pages currently queued for eviction" : NumberInt(0),
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"Pages that could not be queued for eviction" : NumberInt(0),
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"Refs skipped during cache traversal" : NumberInt(0),
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"Size of the root page" : NumberInt(0),
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"Total number of pages currently in cache" : NumberInt(0)
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},
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"checkpoint-cleanup" : {
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"pages added for eviction" : NumberInt(0),
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"pages removed" : NumberInt(0),
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"pages skipped during tree walk" : NumberInt(3079),
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"pages visited" : NumberInt(4836)
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},
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"compression" : {
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"compressed page maximum internal page size prior to compression" : NumberInt(16384),
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"compressed page maximum leaf page size prior to compression " : NumberInt(16384),
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"compressed pages read" : NumberInt(0),
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"compressed pages written" : NumberInt(0),
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"page written failed to compress" : NumberInt(0),
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"page written was too small to compress" : NumberInt(0)
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},
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"cursor" : {
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"Total number of entries skipped by cursor next calls" : NumberInt(0),
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"Total number of entries skipped by cursor prev calls" : NumberInt(0),
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"Total number of entries skipped to position the history store cursor" : NumberInt(0),
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"Total number of pages skipped without reading by cursor next calls" : NumberInt(0),
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"Total number of pages skipped without reading by cursor prev calls" : NumberInt(0),
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"Total number of times a search near has exited due to prefix config" : NumberInt(0),
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"bulk loaded cursor insert calls" : NumberInt(252371),
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"cache cursors reuse count" : NumberInt(99906),
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"close calls that result in cache" : NumberInt(99906),
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"create calls" : NumberInt(81),
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"cursor next calls that skip due to a globally visible history store tombstone" : NumberInt(0),
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"cursor next calls that skip greater than or equal to 100 entries" : NumberInt(0),
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"cursor next calls that skip less than 100 entries" : NumberInt(209510),
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"cursor prev calls that skip due to a globally visible history store tombstone" : NumberInt(0),
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"cursor prev calls that skip greater than or equal to 100 entries" : NumberInt(0),
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"cursor prev calls that skip less than 100 entries" : NumberInt(0),
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"insert calls" : NumberInt(2010),
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"insert key and value bytes" : NumberInt(34170),
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"modify" : NumberInt(0),
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"modify key and value bytes affected" : NumberInt(0),
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"modify value bytes modified" : NumberInt(0),
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"next calls" : NumberInt(209510),
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"open cursor count" : NumberInt(0),
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"operation restarted" : NumberInt(0),
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"prev calls" : NumberInt(0),
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"remove calls" : NumberInt(0),
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"remove key bytes removed" : NumberInt(0),
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"reserve calls" : NumberInt(0),
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"reset calls" : NumberInt(200268),
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"search calls" : NumberInt(0),
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"search history store calls" : NumberInt(0),
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"search near calls" : NumberInt(98352),
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"truncate calls" : NumberInt(0),
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"update calls" : NumberInt(0),
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"update key and value bytes" : NumberInt(0),
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"update value size change" : NumberInt(0)
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},
|
"reconciliation" : {
|
"approximate byte size of timestamps in pages written" : NumberInt(0),
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"approximate byte size of transaction IDs in pages written" : NumberInt(0),
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"dictionary matches" : NumberInt(0),
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"fast-path pages deleted" : NumberInt(0),
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"internal page key bytes discarded using suffix compression" : NumberInt(180),
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"internal page multi-block writes" : NumberInt(0),
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"internal-page overflow keys" : NumberInt(0),
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"leaf page key bytes discarded using prefix compression" : NumberInt(4724937),
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"leaf page multi-block writes" : NumberInt(1),
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"leaf-page overflow keys" : NumberInt(0),
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"maximum blocks required for a page" : NumberInt(1),
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"overflow values written" : NumberInt(0),
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"page checksum matches" : NumberInt(0),
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"page reconciliation calls" : NumberInt(125),
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"page reconciliation calls for eviction" : NumberInt(1),
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"pages deleted" : NumberInt(0),
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"pages written including an aggregated newest start durable timestamp " : NumberInt(0),
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"pages written including an aggregated newest stop durable timestamp " : NumberInt(0),
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"pages written including an aggregated newest stop timestamp " : NumberInt(0),
|
"pages written including an aggregated newest stop transaction ID" : NumberInt(0),
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"pages written including an aggregated newest transaction ID " : NumberInt(0),
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"pages written including an aggregated oldest start timestamp " : NumberInt(0),
|
"pages written including an aggregated prepare" : NumberInt(0),
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"pages written including at least one prepare" : NumberInt(0),
|
"pages written including at least one start durable timestamp" : NumberInt(0),
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"pages written including at least one start timestamp" : NumberInt(0),
|
"pages written including at least one start transaction ID" : NumberInt(0),
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"pages written including at least one stop durable timestamp" : NumberInt(0),
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"pages written including at least one stop timestamp" : NumberInt(0),
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"pages written including at least one stop transaction ID" : NumberInt(0),
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"records written including a prepare" : NumberInt(0),
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"records written including a start durable timestamp" : NumberInt(0),
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"records written including a start timestamp" : NumberInt(0),
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"records written including a start transaction ID" : NumberInt(0),
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"records written including a stop durable timestamp" : NumberInt(0),
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"records written including a stop timestamp" : NumberInt(0),
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"records written including a stop transaction ID" : NumberInt(0)
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},
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"session" : {
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"object compaction" : NumberInt(0),
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"tiered operations dequeued and processed" : NumberInt(0),
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"tiered operations scheduled" : NumberInt(0),
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"tiered storage local retention time (secs)" : NumberInt(0),
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"tiered storage object size" : NumberInt(0)
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},
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"transaction" : {
|
"race to read prepared update retry" : NumberInt(0),
|
"rollback to stable history store records with stop timestamps older than newer records" : NumberInt(0),
|
"rollback to stable inconsistent checkpoint" : NumberInt(0),
|
"rollback to stable keys removed" : NumberInt(0),
|
"rollback to stable keys restored" : NumberInt(0),
|
"rollback to stable restored tombstones from history store" : NumberInt(0),
|
"rollback to stable restored updates from history store" : NumberInt(0),
|
"rollback to stable sweeping history store keys" : NumberInt(0),
|
"rollback to stable updates removed from history store" : NumberInt(0),
|
"transaction checkpoints due to obsolete pages" : NumberInt(0),
|
"update conflicts" : NumberInt(0)
|
}
|
}
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}
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