MongoDB性能监控(5)--db.serverStatus()
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1、概述
- 上一篇中介绍了db.stats()命令，这篇中将详细介绍db.serverStatus()命令；
- db.serverStatus()命令的主要作用是查看服务器的运行状态；
- db.serverStatus()与mongostat命令类似，db.serverStatus()提示的信息更加具体、全面；
- db.serverStatus()命令查看的是静态数据，而mongostat命令查看的是实时的数据；
- db.serverStatus()和db.runCommand({serverStatus: 1})命令功能一样；
2、示例：
- 执行db.serverStatus()命令得到的查询结果如下：
<code>MongoDB shell version: 3.2.8 connecting to: localhost:27017/admin { "host" : "ggnode2", # 主机名 "advisoryHostFQDNs" : [ ], "version" : "3.2.8", # 版本号 "process" : "mongod", # 进程（mongod或mongos） "pid" : NumberLong(23155), "uptime" : 1470624, "uptimeMillis" : NumberLong(1470624043), "uptimeEstimate" : 1415522, "localTime" : ISODate("2016-11-07T04:13:33.328Z"), "asserts" : { "regular" : 0, "warning" : 0, "msg" : 0, "user" : 62, "rollovers" : 0 }, "connections" : { "current" : 1, "available" : 818, "totalCreated" : NumberLong(6025) }, "extra_info" : { "note" : "fields vary by platform", "heap_usage_bytes" : 60437840, "page_faults" : 28 }, "globalLock" : { "totalTime" : NumberLong("1470624234000"), "currentQueue" : { "total" : 0, "readers" : 0, "writers" : 0 }, "activeClients" : { "total" : 8, "readers" : 0, "writers" : 0 } }, "locks" : { "Global" : { "acquireCount" : { "r" : NumberLong(4615078), "w" : NumberLong(26), "W" : NumberLong(4) }, "acquireWaitCount" : { "r" : NumberLong(1) }, "timeAcquiringMicros" : { "r" : NumberLong(17300) } }, "Database" : { "acquireCount" : { "r" : NumberLong(2307505), "R" : NumberLong(19), "W" : NumberLong(26) } }, "Collection" : { "acquireCount" : { "r" : NumberLong(2356509), "w" : NumberLong(18) } }, "Metadata" : { "acquireCount" : { "w" : NumberLong(1) } } }, "network" : { "bytesIn" : NumberLong(1271784), "bytesOut" : NumberLong(1177976), "numRequests" : NumberLong(12423) }, "opcounters" : { "insert" : 0, "query" : 11, "update" : 18, "delete" : 0, "getmore" : 0, "command" : 12370 }, "opcountersRepl" : { "insert" : 0, "query" : 0, "update" : 0, "delete" : 0, "getmore" : 0, "command" : 0 }, "storageEngine" : { "name" : "wiredTiger", "supportsCommittedReads" : true, "persistent" : true }, "tcmalloc" : { "generic" : { "current_allocated_bytes" : 60439376, "heap_size" : 68681728 }, "tcmalloc" : { "pageheap_free_bytes" : 2048000, "pageheap_unmapped_bytes" : 1286144, "max_total_thread_cache_bytes" : NumberLong(1073741824), "current_total_thread_cache_bytes" : 2271744, "central_cache_free_bytes" : 670384, "transfer_cache_free_bytes" : 1966080, "thread_cache_free_bytes" : 2271744, "aggressive_memory_decommit" : 0 }, "formattedString" : "------------------------------------------------\nMALLOC: 60439376 ( 57.6 MiB) Bytes in use by application\nMALLOC: + 2048000 ( 2.0 MiB) Bytes in page heap freelist\nMALLOC: + 670384 ( 0.6 MiB) Bytes in central cache freelist\nMALLOC: + 1966080 ( 1.9 MiB) Bytes in transfer cache freelist\nMALLOC: + 2271744 ( 2.2 MiB) Bytes in thread cache freelists\nMALLOC: + 1208480 ( 1.2 MiB) Bytes in malloc metadata\nMALLOC: ------------\nMALLOC: = 68604064 ( 65.4 MiB) Actual memory used (physical + swap)\nMALLOC: + 1286144 ( 1.2 MiB) Bytes released to OS (aka unmapped)\nMALLOC: ------------\nMALLOC: = 69890208 ( 66.7 MiB) Virtual address space used\nMALLOC:\nMALLOC: 467 Spans in use\nMALLOC: 12 Thread heaps in use\nMALLOC: 8192 Tcmalloc page size\n------------------------------------------------\nCall ReleaseFreeMemory() to release freelist memory to the OS (via madvise()).\nBytes released to the OS take up virtual address space but no physical memory.\n" }, "wiredTiger" : { "uri" : "statistics:", "LSM" : { "application work units currently queued" : 0, "merge work units currently queued" : 0, "rows merged in an LSM tree" : 0, "sleep for LSM checkpoint throttle" : 0, "sleep for LSM merge throttle" : 0, "switch work units currently queued" : 0, "tree maintenance operations discarded" : 0, "tree maintenance operations executed" : 0, "tree maintenance operations scheduled" : 0, "tree queue hit maximum" : 0 }, "async" : { "current work queue length" : 0, "maximum work queue length" : 0, "number of allocation state races" : 0, "number of flush calls" : 0, "number of operation slots viewed for allocation" : 0, "number of times operation allocation failed" : 0, "number of times worker found no work" : 0, "total allocations" : 0, "total compact calls" : 0, "total insert calls" : 0, "total remove calls" : 0, "total search calls" : 0, "total update calls" : 0 }, "block-manager" : { "blocks pre-loaded" : 14, "blocks read" : 58, "blocks written" : 104, "bytes read" : 262144, "bytes written" : 589824, "mapped blocks read" : 0, "mapped bytes read" : 0 }, "cache" : { "bytes currently in the cache" : 154243, "bytes read into cache" : 83409, "bytes written from cache" : 214448, "checkpoint blocked page eviction" : 0, "eviction currently operating in aggressive mode" : 0, "eviction server candidate queue empty when topping up" : 0, "eviction server candidate queue not empty when topping up" : 0, "eviction server evicting pages" : 0, "eviction server populating queue, but not evicting pages" : 0, "eviction server unable to reach eviction goal" : 0, "eviction worker thread evicting pages" : 0, "failed eviction of pages that exceeded the in-memory maximum" : 0, "files with active eviction walks" : 0, "files with new eviction walks started" : 0, "hazard pointer blocked page eviction" : 0, "in-memory page passed criteria to be split" : 0, "in-memory page splits" : 0, "internal pages evicted" : 0, "internal pages split during eviction" : 0, "leaf pages split during eviction" : 0, "lookaside table insert calls" : 0, "lookaside table remove calls" : 0, "maximum bytes configured" : 1073741824, "maximum page size at eviction" : 0, "modified pages evicted" : 0, "modified pages evicted by application threads" : 0, "page split during eviction deepened the tree" : 0, "page written requiring lookaside records" : 0, "pages currently held in the cache" : 25, "pages evicted because they exceeded the in-memory maximum" : 0, "pages evicted because they had chains of deleted items" : 0, "pages evicted by application threads" : 0, "pages queued for eviction" : 0, "pages queued for urgent eviction" : 0, "pages read into cache" : 24, "pages read into cache requiring lookaside entries" : 0, "pages seen by eviction walk" : 0, "pages selected for eviction unable to be evicted" : 0, "pages walked for eviction" : 0, "pages written from cache" : 52, "pages written requiring in-memory restoration" : 0, "percentage overhead" : 8, "tracked bytes belonging to internal pages in the cache" : 23374, "tracked bytes belonging to leaf pages in the cache" : 130869, "tracked bytes belonging to overflow pages in the cache" : 0, "tracked dirty bytes in the cache" : 2583, "tracked dirty pages in the cache" : 1, "unmodified pages evicted" : 0 }, "connection" : { "auto adjusting condition resets" : 38, "auto adjusting condition wait calls" : 4410074, "files currently open" : 16, "memory allocations" : 24360987, "memory frees" : 24360096, "memory re-allocations" : 5931383, "pthread mutex condition wait calls" : 19259828, "pthread mutex shared lock read-lock calls" : 3948538, "pthread mutex shared lock write-lock calls" : 2033557, "total read I/Os" : 510, "total write I/Os" : 145 }, "cursor" : { "cursor create calls" : 61, "cursor insert calls" : 42, "cursor next calls" : 2088, "cursor prev calls" : 8, "cursor remove calls" : 1, "cursor reset calls" : 600208, "cursor restarted searches" : 0, "cursor search calls" : 596264, "cursor search near calls" : 3892, "cursor update calls" : 0, "truncate calls" : 0 }, "data-handle" : { "connection data handles currently active" : 13, "connection sweep candidate became referenced" : 0, "connection sweep dhandles closed" : 0, "connection sweep dhandles removed from hash list" : 269589, "connection sweep time-of-death sets" : 269600, "connection sweeps" : 147048, "session dhandles swept" : 168270, "session sweep attempts" : 24525 }, "log" : { "busy returns attempting to switch slots" : 0, "consolidated slot closures" : 27, "consolidated slot join races" : 0, "consolidated slot join transitions" : 27, "consolidated slot joins" : 38, "consolidated slot unbuffered writes" : 0, "log bytes of payload data" : 12836, "log bytes written" : 16000, "log files manually zero-filled" : 0, "log flush operations" : 14653453, "log force write operations" : 16147909, "log force write operations skipped" : 16147894, "log records compressed" : 19, "log records not compressed" : 0, "log records too small to compress" : 19, "log release advances write LSN" : 12, "log scan operations" : 3, "log scan records requiring two reads" : 5, "log server thread advances write LSN" : 15, "log server thread write LSN walk skipped" : 1471010, "log sync operations" : 27, "log sync_dir operations" : 1, "log write operations" : 38, "logging bytes consolidated" : 15616, "maximum log file size" : 104857600, "number of pre-allocated log files to create" : 2, "pre-allocated log files not ready and missed" : 1, "pre-allocated log files prepared" : 2, "pre-allocated log files used" : 0, "records processed by log scan" : 9, "total in-memory size of compressed records" : 19473, "total log buffer size" : 33554432, "total size of compressed records" : 11899, "written slots coalesced" : 0, "yields waiting for previous log file close" : 0 }, "reconciliation" : { "fast-path pages deleted" : 0, "page reconciliation calls" : 52, "page reconciliation calls for eviction" : 0, "pages deleted" : 0, "split bytes currently awaiting free" : 0, "split objects currently awaiting free" : 0 }, "session" : { "open cursor count" : 24, "open session count" : 15 }, "thread-yield" : { "page acquire busy blocked" : 0, "page acquire eviction blocked" : 0, "page acquire locked blocked" : 0, "page acquire read blocked" : 0, "page acquire time sleeping (usecs)" : 0 }, "transaction" : { "number of named snapshots created" : 0, "number of named snapshots dropped" : 0, "transaction begins" : 101980, "transaction checkpoint currently running" : 0, "transaction checkpoint generation" : 24509, "transaction checkpoint max time (msecs)" : 33, "transaction checkpoint min time (msecs)" : 0, "transaction checkpoint most recent time (msecs)" : 0, "transaction checkpoint total time (msecs)" : 239, "transaction checkpoints" : 24509, "transaction failures due to cache overflow" : 0, "transaction range of IDs currently pinned" : 0, "transaction range of IDs currently pinned by a checkpoint" : 0, "transaction range of IDs currently pinned by named snapshots" : 0, "transaction sync calls" : 0, "transactions committed" : 17, "transactions rolled back" : 101963 }, "concurrentTransactions" : { "write" : { "out" : 0, "available" : 128, "totalTickets" : 128 }, "read" : { "out" : 0, "available" : 128, "totalTickets" : 128 } } }, "writeBacksQueued" : false, "mem" : { "bits" : 64, "resident" : 40, "virtual" : 390, "supported" : true, "mapped" : 0, "mappedWithJournal" : 0 }, "metrics" : { "commands" : { "authenticate" : { "failed" : NumberLong(5981), "total" : NumberLong(5981) }, "buildInfo" : { "failed" : NumberLong(0), "total" : NumberLong(20) }, "dbStats" : { "failed" : NumberLong(0), "total" : NumberLong(1) }, "find" : { "failed" : NumberLong(0), "total" : NumberLong(10) }, "getLastError" : { "failed" : NumberLong(0), "total" : NumberLong(18) }, "getLog" : { "failed" : NumberLong(0), "total" : NumberLong(3) }, "getnonce" : { "failed" : NumberLong(0), "total" : NumberLong(5996) }, "grantRolesToUser" : { "failed" : NumberLong(0), "total" : NumberLong(7) }, "isMaster" : { "failed" : NumberLong(0), "total" : NumberLong(190) }, "listCollections" : { "failed" : NumberLong(0), "total" : NumberLong(14) }, "listDatabases" : { "failed" : NumberLong(0), "total" : NumberLong(3) }, "ping" : { "failed" : NumberLong(0), "total" : NumberLong(7) }, "replSetGetStatus" : { "failed" : NumberLong(3), "total" : NumberLong(3) }, "revokeRolesFromUser" : { "failed" : NumberLong(0), "total" : NumberLong(2) }, "saslContinue" : { "failed" : NumberLong(0), "total" : NumberLong(56) }, "saslStart" : { "failed" : NumberLong(8), "total" : NumberLong(36) }, "serverStatus" : { "failed" : NumberLong(0), "total" : NumberLong(5) }, "whatsmyuri" : { "failed" : NumberLong(0), "total" : NumberLong(28) } }, "cursor" : { "timedOut" : NumberLong(0), "open" : { "noTimeout" : NumberLong(0), "pinned" : NumberLong(0), "total" : NumberLong(0) } }, "document" : { "deleted" : NumberLong(0), "inserted" : NumberLong(0), "returned" : NumberLong(30), "updated" : NumberLong(18) }, "getLastError" : { "wtime" : { "num" : 0, "totalMillis" : 0 }, "wtimeouts" : NumberLong(0) }, "operation" : { "fastmod" : NumberLong(0), "idhack" : NumberLong(0), "scanAndOrder" : NumberLong(0), "writeConflicts" : NumberLong(0) }, "queryExecutor" : { "scanned" : NumberLong(18), "scannedObjects" : NumberLong(48) }, "record" : { "moves" : NumberLong(0) }, "repl" : { "executor" : { "counters" : { "eventCreated" : 0, "eventWait" : 0, "cancels" : 0, "waits" : 0, "scheduledNetCmd" : 0, "scheduledDBWork" : 0, "scheduledXclWork" : 0, "scheduledWorkAt" : 0, "scheduledWork" : 0, "schedulingFailures" : 0 }, "queues" : { "networkInProgress" : 0, "dbWorkInProgress" : 0, "exclusiveInProgress" : 0, "sleepers" : 0, "ready" : 0, "free" : 0 }, "unsignaledEvents" : 0, "eventWaiters" : 0, "shuttingDown" : false, "networkInterface" : "NetworkInterfaceASIO inShutdown: 0" }, "apply" : { "batches" : { "num" : 0, "totalMillis" : 0 }, "ops" : NumberLong(0) }, "buffer" : { "count" : NumberLong(0), "maxSizeBytes" : 268435456, "sizeBytes" : NumberLong(0) }, "network" : { "bytes" : NumberLong(0), "getmores" : { "num" : 0, "totalMillis" : 0 }, "ops" : NumberLong(0), "readersCreated" : NumberLong(0) }, "preload" : { "docs" : { "num" : 0, "totalMillis" : 0 }, "indexes" : { "num" : 0, "totalMillis" : 0 } } }, "storage" : { "freelist" : { "search" : { "bucketExhausted" : NumberLong(0), "requests" : NumberLong(0), "scanned" : NumberLong(0) } } }, "ttl" : { "deletedDocuments" : NumberLong(0), "passes" : NumberLong(24508) } }, "ok" : 1 } </code>本帖部分内容已隐藏，请登入并回覆，以查看隐藏内容！
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学习一下。。。。。。。
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想看~快給我看~芝麻開門
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想學~~~芝麻開門
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性能系列文章...收藏
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@henryjia111
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学习一下。。。。。。。
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thanks for you
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該功能訊息量蠻多的，真不知從何看起,感謝。
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学习一下,谢谢共享
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該功能訊息量蠻多的，真不知從何看起,感謝。
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学习
........
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O(∩_∩)O谢谢
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谢谢分享谢谢分享
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感谢分享
看看实际内容再来评论。
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想學~~~芝麻開門
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@henryjia谢谢分享，看看有没有用
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学习一下,谢谢共享
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赶紧来学习学习~~~
