sample-col-stats.txt

{
    "sharded" : true,
    "capped" : false,
    "wiredTiger" : {
        "metadata" : {
            "formatVersion" : 1
        },
        "creationString" : "access_pattern_hint=none,allocation_size=4KB,app_metadata=(formatVersion=1),assert=(commit_timestamp=none,durable_timestamp=none,read_timestamp=none),block_allocation=best,block_compressor=snappy,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,internal_item_max=0,internal_key_max=0,internal_key_truncate=true,internal_page_max=4KB,key_format=q,key_gap=10,leaf_item_max=0,leaf_key_max=0,leaf_page_max=32KB,leaf_value_max=64MB,log=(enabled=false),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=10m,os_cache_dirty_max=0,os_cache_max=0,prefix_compression=false,prefix_compression_min=4,source=,split_deepen_min_child=0,split_deepen_per_child=0,split_pct=90,type=file,value_format=u",
        "type" : "file",
        "uri" : "statistics:table:collection-4-1242222370403093256",
        "LSM" : {
            "bloom filter false positives" : 0,
            "bloom filter hits" : 0,
            "bloom filter misses" : 0,
            "bloom filter pages evicted from cache" : 0,
            "bloom filter pages read into cache" : 0,
            "bloom filters in the LSM tree" : 0,
            "chunks in the LSM tree" : 0,
            "highest merge generation in the LSM tree" : 0,
            "queries that could have benefited from a Bloom filter that did not exist" : 0,
            "sleep for LSM checkpoint throttle" : 0,
            "sleep for LSM merge throttle" : 0,
            "total size of bloom filters" : 0
        },
        "block-manager" : {
            "allocations requiring file extension" : 0,
            "blocks allocated" : 197,
            "blocks freed" : 88,
            "checkpoint size" : 1398554624.0,
            "file allocation unit size" : 4096,
            "file bytes available for reuse" : 1630531584.0,
            "file magic number" : 120897,
            "file major version number" : 1,
            "file size in bytes" : 3029176320.0,
            "minor version number" : 0
        },
        "btree" : {
            "btree checkpoint generation" : 1259,
            "column-store fixed-size leaf pages" : 0,
            "column-store internal pages" : 0,
            "column-store variable-size RLE encoded values" : 0,
            "column-store variable-size deleted values" : 0,
            "column-store variable-size leaf pages" : 0,
            "fixed-record size" : 0,
            "maximum internal page key size" : 368,
            "maximum internal page size" : 4096,
            "maximum leaf page key size" : 2867,
            "maximum leaf page size" : 32768,
            "maximum leaf page value size" : 67108864,
            "maximum tree depth" : 4,
            "number of key/value pairs" : 0,
            "overflow pages" : 0,
            "pages rewritten by compaction" : 0,
            "row-store empty values" : 0,
            "row-store internal pages" : 0,
            "row-store leaf pages" : 0
        },
        "cache" : {
            "bytes currently in the cache" : 902047,
            "bytes dirty in the cache cumulative" : 47741923,
            "bytes read into cache" : 3765819,
            "bytes written from cache" : 8905475,
            "checkpoint blocked page eviction" : 0,
            "data source pages selected for eviction unable to be evicted" : 0,
            "eviction walk passes of a file" : 20,
            "eviction walk target pages histogram - 0-9" : 0,
            "eviction walk target pages histogram - 10-31" : 0,
            "eviction walk target pages histogram - 128 and higher" : 0,
            "eviction walk target pages histogram - 32-63" : 0,
            "eviction walk target pages histogram - 64-128" : 20,
            "eviction walks abandoned" : 0,
            "eviction walks gave up because they restarted their walk twice" : 20,
            "eviction walks gave up because they saw too many pages and found no candidates" : 0,
            "eviction walks gave up because they saw too many pages and found too few candidates" : 0,
            "eviction walks reached end of tree" : 40,
            "eviction walks started from root of tree" : 20,
            "eviction walks started from saved location in tree" : 0,
            "hazard pointer blocked page eviction" : 0,
            "history store table reads" : 0,
            "in-memory page passed criteria to be split" : 0,
            "in-memory page splits" : 0,
            "internal pages evicted" : 3,
            "internal pages split during eviction" : 0,
            "leaf pages split during eviction" : 1,
            "modified pages evicted" : 13,
            "overflow pages read into cache" : 0,
            "page split during eviction deepened the tree" : 0,
            "page written requiring history store records" : 29,
            "pages read into cache" : 16,
            "pages read into cache after truncate" : 0,
            "pages read into cache after truncate in prepare state" : 0,
            "pages requested from the cache" : 826,
            "pages seen by eviction walk" : 100,
            "pages written from cache" : 125,
            "pages written requiring in-memory restoration" : 0,
            "tracked dirty bytes in the cache" : 0,
            "unmodified pages evicted" : 0
        },
        "cache_walk" : {
            "Average difference between current eviction generation when the page was last considered" : 0,
            "Average on-disk page image size seen" : 0,
            "Average time in cache for pages that have been visited by the eviction server" : 0,
            "Average time in cache for pages that have not been visited by the eviction server" : 0,
            "Clean pages currently in cache" : 0,
            "Current eviction generation" : 0,
            "Dirty pages currently in cache" : 0,
            "Entries in the root page" : 0,
            "Internal pages currently in cache" : 0,
            "Leaf pages currently in cache" : 0,
            "Maximum difference between current eviction generation when the page was last considered" : 0,
            "Maximum page size seen" : 0,
            "Minimum on-disk page image size seen" : 0,
            "Number of pages never visited by eviction server" : 0,
            "On-disk page image sizes smaller than a single allocation unit" : 0,
            "Pages created in memory and never written" : 0,
            "Pages currently queued for eviction" : 0,
            "Pages that could not be queued for eviction" : 0,
            "Refs skipped during cache traversal" : 0,
            "Size of the root page" : 0,
            "Total number of pages currently in cache" : 0
        },
        "checkpoint-cleanup" : {
            "pages added for eviction" : 0,
            "pages removed" : 0,
            "pages skipped during tree walk" : 10514,
            "pages visited" : 10633
        },
        "compression" : {
            "compressed page maximum internal page size prior to compression" : 4096,
            "compressed page maximum leaf page size prior to compression " : 32768,
            "compressed pages read" : 10,
            "compressed pages written" : 50,
            "page written failed to compress" : 0,
            "page written was too small to compress" : 75
        },
        "cursor" : {
            "Total number of entries skipped by cursor next calls" : 0,
            "Total number of entries skipped by cursor prev calls" : 0,
            "Total number of entries skipped to position the history store cursor" : 0,
            "bulk loaded cursor insert calls" : 0,
            "cache cursors reuse count" : 314,
            "close calls that result in cache" : 0,
            "create calls" : 14,
            "cursor next calls that skip greater than or equal to 100 entries" : 0,
            "cursor next calls that skip less than 100 entries" : 0,
            "cursor prev calls that skip greater than or equal to 100 entries" : 0,
            "cursor prev calls that skip less than 100 entries" : 1,
            "insert calls" : 1,
            "insert key and value bytes" : 2017302,
            "modify" : 235,
            "modify key and value bytes affected" : 33954290,
            "modify value bytes modified" : 4601938,
            "next calls" : 0,
            "open cursor count" : 0,
            "operation restarted" : 0,
            "prev calls" : 1,
            "remove calls" : 0,
            "remove key bytes removed" : 0,
            "reserve calls" : 0,
            "reset calls" : 807,
            "search calls" : 326,
            "search history store calls" : 0,
            "search near calls" : 0,
            "truncate calls" : 0,
            "update calls" : 0,
            "update key and value bytes" : 0,
            "update value size change" : 4690870
        },
        "reconciliation" : {
            "approximate byte size of timestamps in pages written" : 448,
            "approximate byte size of transaction IDs in pages written" : 0,
            "dictionary matches" : 0,
            "fast-path pages deleted" : 0,
            "internal page key bytes discarded using suffix compression" : 2,
            "internal page multi-block writes" : 0,
            "internal-page overflow keys" : 0,
            "leaf page key bytes discarded using prefix compression" : 0,
            "leaf page multi-block writes" : 2,
            "leaf-page overflow keys" : 0,
            "maximum blocks required for a page" : 1,
            "overflow values written" : 0,
            "page checksum matches" : 1,
            "page reconciliation calls" : 124,
            "page reconciliation calls for eviction" : 2,
            "pages deleted" : 0,
            "pages written including an aggregated newest start durable timestamp " : 63,
            "pages written including an aggregated newest stop durable timestamp " : 0,
            "pages written including an aggregated newest stop timestamp " : 0,
            "pages written including an aggregated newest stop transaction ID" : 0,
            "pages written including an aggregated oldest start timestamp " : 63,
            "pages written including an aggregated oldest start transaction ID " : 0,
            "pages written including an aggregated prepare" : 0,
            "pages written including at least one prepare" : 0,
            "pages written including at least one start durable timestamp" : 28,
            "pages written including at least one start timestamp" : 28,
            "pages written including at least one start transaction ID" : 0,
            "pages written including at least one stop durable timestamp" : 0,
            "pages written including at least one stop timestamp" : 0,
            "pages written including at least one stop transaction ID" : 0,
            "records written including a prepare" : 0,
            "records written including a start durable timestamp" : 28,
            "records written including a start timestamp" : 28,
            "records written including a start transaction ID" : 0,
            "records written including a stop durable timestamp" : 0,
            "records written including a stop timestamp" : 0,
            "records written including a stop transaction ID" : 0
        },
        "session" : {
            "object compaction" : 0
        },
        "transaction" : {
            "update conflicts" : 0
        }
    },
    "ns" : "edidatico.testes-estudantes",
    "count" : 35240,
    "size" : 8308236397.0,
    "storageSize" : 5863419904.0,
    "totalIndexSize" : 7335936,
    "totalSize" : 5870755840.0,
    "indexSizes" : {
        "_id_" : 1290240,
        "_id_hashed" : 1404928,
        "estudanteId_1" : 696320,
        "estudanteId_1_teste.endDate_1" : 1290240,
        "estudanteId_1_testeId_1" : 2387968,
        "testeId_1" : 266240
    },
    "avgObjSize" : 235761.092707151,
    "maxSize" : NumberLong(0),
    "nindexes" : 6,
    "nchunks" : 440,
    "shards" : {
        "shard1" : {
            "ns" : "edidatico.testes-estudantes",
            "size" : 3287887719.0,
            "count" : 13733,
            "avgObjSize" : 239415,
            "storageSize" : 3029176320.0,
            "freeStorageSize" : 1630531584.0,
            "capped" : false,
            "wiredTiger" : {
                "metadata" : {
                    "formatVersion" : 1
                },
                "creationString" : "access_pattern_hint=none,allocation_size=4KB,app_metadata=(formatVersion=1),assert=(commit_timestamp=none,durable_timestamp=none,read_timestamp=none),block_allocation=best,block_compressor=snappy,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,internal_item_max=0,internal_key_max=0,internal_key_truncate=true,internal_page_max=4KB,key_format=q,key_gap=10,leaf_item_max=0,leaf_key_max=0,leaf_page_max=32KB,leaf_value_max=64MB,log=(enabled=false),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=10m,os_cache_dirty_max=0,os_cache_max=0,prefix_compression=false,prefix_compression_min=4,source=,split_deepen_min_child=0,split_deepen_per_child=0,split_pct=90,type=file,value_format=u",
                "type" : "file",
                "uri" : "statistics:table:collection-4-1242222370403093256",
                "LSM" : {
                    "bloom filter false positives" : 0,
                    "bloom filter hits" : 0,
                    "bloom filter misses" : 0,
                    "bloom filter pages evicted from cache" : 0,
                    "bloom filter pages read into cache" : 0,
                    "bloom filters in the LSM tree" : 0,
                    "chunks in the LSM tree" : 0,
                    "highest merge generation in the LSM tree" : 0,
                    "queries that could have benefited from a Bloom filter that did not exist" : 0,
                    "sleep for LSM checkpoint throttle" : 0,
                    "sleep for LSM merge throttle" : 0,
                    "total size of bloom filters" : 0
                },
                "block-manager" : {
                    "allocations requiring file extension" : 0,
                    "blocks allocated" : 197,
                    "blocks freed" : 88,
                    "checkpoint size" : 1398554624.0,
                    "file allocation unit size" : 4096,
                    "file bytes available for reuse" : 1630531584.0,
                    "file magic number" : 120897,
                    "file major version number" : 1,
                    "file size in bytes" : 3029176320.0,
                    "minor version number" : 0
                },
                "btree" : {
                    "btree checkpoint generation" : 1259,
                    "column-store fixed-size leaf pages" : 0,
                    "column-store internal pages" : 0,
                    "column-store variable-size RLE encoded values" : 0,
                    "column-store variable-size deleted values" : 0,
                    "column-store variable-size leaf pages" : 0,
                    "fixed-record size" : 0,
                    "maximum internal page key size" : 368,
                    "maximum internal page size" : 4096,
                    "maximum leaf page key size" : 2867,
                    "maximum leaf page size" : 32768,
                    "maximum leaf page value size" : 67108864,
                    "maximum tree depth" : 4,
                    "number of key/value pairs" : 0,
                    "overflow pages" : 0,
                    "pages rewritten by compaction" : 0,
                    "row-store empty values" : 0,
                    "row-store internal pages" : 0,
                    "row-store leaf pages" : 0
                },
                "cache" : {
                    "bytes currently in the cache" : 902047,
                    "bytes dirty in the cache cumulative" : 47741923,
                    "bytes read into cache" : 3765819,
                    "bytes written from cache" : 8905475,
                    "checkpoint blocked page eviction" : 0,
                    "data source pages selected for eviction unable to be evicted" : 0,
                    "eviction walk passes of a file" : 20,
                    "eviction walk target pages histogram - 0-9" : 0,
                    "eviction walk target pages histogram - 10-31" : 0,
                    "eviction walk target pages histogram - 128 and higher" : 0,
                    "eviction walk target pages histogram - 32-63" : 0,
                    "eviction walk target pages histogram - 64-128" : 20,
                    "eviction walks abandoned" : 0,
                    "eviction walks gave up because they restarted their walk twice" : 20,
                    "eviction walks gave up because they saw too many pages and found no candidates" : 0,
                    "eviction walks gave up because they saw too many pages and found too few candidates" : 0,
                    "eviction walks reached end of tree" : 40,
                    "eviction walks started from root of tree" : 20,
                    "eviction walks started from saved location in tree" : 0,
                    "hazard pointer blocked page eviction" : 0,
                    "history store table reads" : 0,
                    "in-memory page passed criteria to be split" : 0,
                    "in-memory page splits" : 0,
                    "internal pages evicted" : 3,
                    "internal pages split during eviction" : 0,
                    "leaf pages split during eviction" : 1,
                    "modified pages evicted" : 13,
                    "overflow pages read into cache" : 0,
                    "page split during eviction deepened the tree" : 0,
                    "page written requiring history store records" : 29,
                    "pages read into cache" : 16,
                    "pages read into cache after truncate" : 0,
                    "pages read into cache after truncate in prepare state" : 0,
                    "pages requested from the cache" : 826,
                    "pages seen by eviction walk" : 100,
                    "pages written from cache" : 125,
                    "pages written requiring in-memory restoration" : 0,
                    "tracked dirty bytes in the cache" : 0,
                    "unmodified pages evicted" : 0
                },
                "cache_walk" : {
                    "Average difference between current eviction generation when the page was last considered" : 0,
                    "Average on-disk page image size seen" : 0,
                    "Average time in cache for pages that have been visited by the eviction server" : 0,
                    "Average time in cache for pages that have not been visited by the eviction server" : 0,
                    "Clean pages currently in cache" : 0,
                    "Current eviction generation" : 0,
                    "Dirty pages currently in cache" : 0,
                    "Entries in the root page" : 0,
                    "Internal pages currently in cache" : 0,
                    "Leaf pages currently in cache" : 0,
                    "Maximum difference between current eviction generation when the page was last considered" : 0,
                    "Maximum page size seen" : 0,
                    "Minimum on-disk page image size seen" : 0,
                    "Number of pages never visited by eviction server" : 0,
                    "On-disk page image sizes smaller than a single allocation unit" : 0,
                    "Pages created in memory and never written" : 0,
                    "Pages currently queued for eviction" : 0,
                    "Pages that could not be queued for eviction" : 0,
                    "Refs skipped during cache traversal" : 0,
                    "Size of the root page" : 0,
                    "Total number of pages currently in cache" : 0
                },
                "checkpoint-cleanup" : {
                    "pages added for eviction" : 0,
                    "pages removed" : 0,
                    "pages skipped during tree walk" : 10514,
                    "pages visited" : 10633
                },
                "compression" : {
                    "compressed page maximum internal page size prior to compression" : 4096,
                    "compressed page maximum leaf page size prior to compression " : 32768,
                    "compressed pages read" : 10,
                    "compressed pages written" : 50,
                    "page written failed to compress" : 0,
                    "page written was too small to compress" : 75
                },
                "cursor" : {
                    "Total number of entries skipped by cursor next calls" : 0,
                    "Total number of entries skipped by cursor prev calls" : 0,
                    "Total number of entries skipped to position the history store cursor" : 0,
                    "bulk loaded cursor insert calls" : 0,
                    "cache cursors reuse count" : 314,
                    "close calls that result in cache" : 0,
                    "create calls" : 14,
                    "cursor next calls that skip greater than or equal to 100 entries" : 0,
                    "cursor next calls that skip less than 100 entries" : 0,
                    "cursor prev calls that skip greater than or equal to 100 entries" : 0,
                    "cursor prev calls that skip less than 100 entries" : 1,
                    "insert calls" : 1,
                    "insert key and value bytes" : 2017302,
                    "modify" : 235,
                    "modify key and value bytes affected" : 33954290,
                    "modify value bytes modified" : 4601938,
                    "next calls" : 0,
                    "open cursor count" : 0,
                    "operation restarted" : 0,
                    "prev calls" : 1,
                    "remove calls" : 0,
                    "remove key bytes removed" : 0,
                    "reserve calls" : 0,
                    "reset calls" : 807,
                    "search calls" : 326,
                    "search history store calls" : 0,
                    "search near calls" : 0,
                    "truncate calls" : 0,
                    "update calls" : 0,
                    "update key and value bytes" : 0,
                    "update value size change" : 4690870
                },
                "reconciliation" : {
                    "approximate byte size of timestamps in pages written" : 448,
                    "approximate byte size of transaction IDs in pages written" : 0,
                    "dictionary matches" : 0,
                    "fast-path pages deleted" : 0,
                    "internal page key bytes discarded using suffix compression" : 2,
                    "internal page multi-block writes" : 0,
                    "internal-page overflow keys" : 0,
                    "leaf page key bytes discarded using prefix compression" : 0,
                    "leaf page multi-block writes" : 2,
                    "leaf-page overflow keys" : 0,
                    "maximum blocks required for a page" : 1,
                    "overflow values written" : 0,
                    "page checksum matches" : 1,
                    "page reconciliation calls" : 124,
                    "page reconciliation calls for eviction" : 2,
                    "pages deleted" : 0,
                    "pages written including an aggregated newest start durable timestamp " : 63,
                    "pages written including an aggregated newest stop durable timestamp " : 0,
                    "pages written including an aggregated newest stop timestamp " : 0,
                    "pages written including an aggregated newest stop transaction ID" : 0,
                    "pages written including an aggregated oldest start timestamp " : 63,
                    "pages written including an aggregated oldest start transaction ID " : 0,
                    "pages written including an aggregated prepare" : 0,
                    "pages written including at least one prepare" : 0,
                    "pages written including at least one start durable timestamp" : 28,
                    "pages written including at least one start timestamp" : 28,
                    "pages written including at least one start transaction ID" : 0,
                    "pages written including at least one stop durable timestamp" : 0,
                    "pages written including at least one stop timestamp" : 0,
                    "pages written including at least one stop transaction ID" : 0,
                    "records written including a prepare" : 0,
                    "records written including a start durable timestamp" : 28,
                    "records written including a start timestamp" : 28,
                    "records written including a start transaction ID" : 0,
                    "records written including a stop durable timestamp" : 0,
                    "records written including a stop timestamp" : 0,
                    "records written including a stop transaction ID" : 0
                },
                "session" : {
                    "object compaction" : 0
                },
                "transaction" : {
                    "update conflicts" : 0
                }
            },
            "nindexes" : 6,
            "indexBuilds" : [],
            "totalIndexSize" : 2871296,
            "totalSize" : 3032047616.0,
            "indexSizes" : {
                "_id_" : 536576,
                "_id_hashed" : 479232,
                "estudanteId_1" : 278528,
                "estudanteId_1_testeId_1" : 966656,
                "testeId_1" : 94208,
                "estudanteId_1_teste.endDate_1" : 516096
            },
            "scaleFactor" : 1,
            "ok" : 1.0,
            "$gleStats" : {
                "lastOpTime" : Timestamp(0, 0),
                "electionId" : ObjectId("000000000000000000000000")
            },
            "lastCommittedOpTime" : Timestamp(1598920298, 1),
            "$configServerState" : {
                "opTime" : {
                    "ts" : Timestamp(1598920291, 3),
                    "t" : NumberLong(47)
                }
            },
            "$clusterTime" : {
                "clusterTime" : Timestamp(1598920298, 1),
                "signature" : {
                    "hash" : { "$binary" : "AAAAAAAAAAAAAAAAAAAAAAAAAAA=", "$type" : "00" },
                    "keyId" : NumberLong(0)
                }
            },
            "operationTime" : Timestamp(1598920298, 1)
        },
        "shard2" : {
            "ns" : "edidatico.testes-estudantes",
            "size" : 2665423765.0,
            "count" : 11475,
            "avgObjSize" : 232280,
            "storageSize" : 1508048896.0,
            "freeStorageSize" : 189902848,
            "capped" : false,
            "wiredTiger" : {
                "metadata" : {
                    "formatVersion" : 1
                },
                "creationString" : "access_pattern_hint=none,allocation_size=4KB,app_metadata=(formatVersion=1),assert=(commit_timestamp=none,durable_timestamp=none,read_timestamp=none),block_allocation=best,block_compressor=snappy,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,internal_item_max=0,internal_key_max=0,internal_key_truncate=true,internal_page_max=4KB,key_format=q,key_gap=10,leaf_item_max=0,leaf_key_max=0,leaf_page_max=32KB,leaf_value_max=64MB,log=(enabled=false),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=10m,os_cache_dirty_max=0,os_cache_max=0,prefix_compression=false,prefix_compression_min=4,source=,split_deepen_min_child=0,split_deepen_per_child=0,split_pct=90,type=file,value_format=u",
                "type" : "file",
                "uri" : "statistics:table:collection-3-8096250008293787393",
                "LSM" : {
                    "bloom filter false positives" : 0,
                    "bloom filter hits" : 0,
                    "bloom filter misses" : 0,
                    "bloom filter pages evicted from cache" : 0,
                    "bloom filter pages read into cache" : 0,
                    "bloom filters in the LSM tree" : 0,
                    "chunks in the LSM tree" : 0,
                    "highest merge generation in the LSM tree" : 0,
                    "queries that could have benefited from a Bloom filter that did not exist" : 0,
                    "sleep for LSM checkpoint throttle" : 0,
                    "sleep for LSM merge throttle" : 0,
                    "total size of bloom filters" : 0
                },
                "block-manager" : {
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