in plugins/inputs/mongodb/mongostat.go [487:750]
func NewStatLine(oldMongo, newMongo MongoStatus, key string, all bool, sampleSecs int64) *StatLine {
oldStat := *oldMongo.ServerStatus
newStat := *newMongo.ServerStatus
returnVal := &StatLine{
Key: key,
Host: newStat.Host,
Mapped: -1,
Virtual: -1,
Resident: -1,
NonMapped: -1,
Faults: -1,
}
// set the storage engine appropriately
if newStat.StorageEngine != nil && newStat.StorageEngine["name"] != "" {
returnVal.StorageEngine = newStat.StorageEngine["name"]
} else {
returnVal.StorageEngine = "mmapv1"
}
if newStat.Opcounters != nil && oldStat.Opcounters != nil {
returnVal.Insert = diff(newStat.Opcounters.Insert, oldStat.Opcounters.Insert, sampleSecs)
returnVal.Query = diff(newStat.Opcounters.Query, oldStat.Opcounters.Query, sampleSecs)
returnVal.Update = diff(newStat.Opcounters.Update, oldStat.Opcounters.Update, sampleSecs)
returnVal.Delete = diff(newStat.Opcounters.Delete, oldStat.Opcounters.Delete, sampleSecs)
returnVal.GetMore = diff(newStat.Opcounters.GetMore, oldStat.Opcounters.GetMore, sampleSecs)
returnVal.Command = diff(newStat.Opcounters.Command, oldStat.Opcounters.Command, sampleSecs)
}
if newStat.Metrics != nil && newStat.Metrics.TTL != nil && oldStat.Metrics.TTL != nil {
returnVal.Passes = diff(newStat.Metrics.TTL.Passes, oldStat.Metrics.TTL.Passes, sampleSecs)
returnVal.DeletedDocuments = diff(newStat.Metrics.TTL.DeletedDocuments, oldStat.Metrics.TTL.DeletedDocuments, sampleSecs)
}
if newStat.OpcountersRepl != nil && oldStat.OpcountersRepl != nil {
returnVal.InsertR = diff(newStat.OpcountersRepl.Insert, oldStat.OpcountersRepl.Insert, sampleSecs)
returnVal.QueryR = diff(newStat.OpcountersRepl.Query, oldStat.OpcountersRepl.Query, sampleSecs)
returnVal.UpdateR = diff(newStat.OpcountersRepl.Update, oldStat.OpcountersRepl.Update, sampleSecs)
returnVal.DeleteR = diff(newStat.OpcountersRepl.Delete, oldStat.OpcountersRepl.Delete, sampleSecs)
returnVal.GetMoreR = diff(newStat.OpcountersRepl.GetMore, oldStat.OpcountersRepl.GetMore, sampleSecs)
returnVal.CommandR = diff(newStat.OpcountersRepl.Command, oldStat.OpcountersRepl.Command, sampleSecs)
}
returnVal.CacheDirtyPercent = -1
returnVal.CacheUsedPercent = -1
if newStat.WiredTiger != nil && oldStat.WiredTiger != nil {
returnVal.Flushes = newStat.WiredTiger.Transaction.TransCheckpoints - oldStat.WiredTiger.Transaction.TransCheckpoints
returnVal.CacheDirtyPercent = float64(newStat.WiredTiger.Cache.TrackedDirtyBytes) / float64(newStat.WiredTiger.Cache.MaxBytesConfigured)
returnVal.CacheUsedPercent = float64(newStat.WiredTiger.Cache.CurrentCachedBytes) / float64(newStat.WiredTiger.Cache.MaxBytesConfigured)
} else if newStat.BackgroundFlushing != nil && oldStat.BackgroundFlushing != nil {
returnVal.Flushes = newStat.BackgroundFlushing.Flushes - oldStat.BackgroundFlushing.Flushes
}
returnVal.Time = newMongo.SampleTime
returnVal.IsMongos =
(newStat.ShardCursorType != nil || strings.HasPrefix(newStat.Process, MongosProcess))
// BEGIN code modification
if oldStat.Mem.Supported.(bool) {
// END code modification
if !returnVal.IsMongos {
returnVal.Mapped = newStat.Mem.Mapped
}
returnVal.Virtual = newStat.Mem.Virtual
returnVal.Resident = newStat.Mem.Resident
if !returnVal.IsMongos && all {
returnVal.NonMapped = newStat.Mem.Virtual - newStat.Mem.Mapped
}
}
if newStat.Repl != nil {
setName, isReplSet := newStat.Repl.SetName.(string)
if isReplSet {
returnVal.ReplSetName = setName
}
// BEGIN code modification
if newStat.Repl.IsMaster.(bool) {
returnVal.NodeType = "PRI"
} else if newStat.Repl.Secondary.(bool) {
returnVal.NodeType = "SEC"
} else if newStat.Repl.ArbiterOnly != nil && newStat.Repl.ArbiterOnly.(bool) {
returnVal.NodeType = "ARB"
} else {
returnVal.NodeType = "UNK"
}
// END code modification
} else if returnVal.IsMongos {
returnVal.NodeType = "RTR"
}
if oldStat.ExtraInfo != nil && newStat.ExtraInfo != nil &&
oldStat.ExtraInfo.PageFaults != nil && newStat.ExtraInfo.PageFaults != nil {
returnVal.Faults = diff(*(newStat.ExtraInfo.PageFaults), *(oldStat.ExtraInfo.PageFaults), sampleSecs)
}
if !returnVal.IsMongos && oldStat.Locks != nil {
globalCheck, hasGlobal := oldStat.Locks["Global"]
if hasGlobal && globalCheck.AcquireCount != nil {
// This appears to be a 3.0+ server so the data in these fields do *not* refer to
// actual namespaces and thus we can't compute lock %.
returnVal.HighestLocked = nil
// Check if it's a 3.0+ MMAP server so we can still compute collection locks
collectionCheck, hasCollection := oldStat.Locks["Collection"]
if hasCollection && collectionCheck.AcquireWaitCount != nil {
readWaitCountDiff := newStat.Locks["Collection"].AcquireWaitCount.Read - oldStat.Locks["Collection"].AcquireWaitCount.Read
readTotalCountDiff := newStat.Locks["Collection"].AcquireCount.Read - oldStat.Locks["Collection"].AcquireCount.Read
writeWaitCountDiff := newStat.Locks["Collection"].AcquireWaitCount.Write - oldStat.Locks["Collection"].AcquireWaitCount.Write
writeTotalCountDiff := newStat.Locks["Collection"].AcquireCount.Write - oldStat.Locks["Collection"].AcquireCount.Write
readAcquireTimeDiff := newStat.Locks["Collection"].TimeAcquiringMicros.Read - oldStat.Locks["Collection"].TimeAcquiringMicros.Read
writeAcquireTimeDiff := newStat.Locks["Collection"].TimeAcquiringMicros.Write - oldStat.Locks["Collection"].TimeAcquiringMicros.Write
returnVal.CollectionLocks = &CollectionLockStatus{
ReadAcquireWaitsPercentage: percentageInt64(readWaitCountDiff, readTotalCountDiff),
WriteAcquireWaitsPercentage: percentageInt64(writeWaitCountDiff, writeTotalCountDiff),
ReadAcquireTimeMicros: averageInt64(readAcquireTimeDiff, readWaitCountDiff),
WriteAcquireTimeMicros: averageInt64(writeAcquireTimeDiff, writeWaitCountDiff),
}
}
} else {
prevLocks := parseLocks(oldStat)
curLocks := parseLocks(newStat)
lockdiffs := computeLockDiffs(prevLocks, curLocks)
if len(lockdiffs) == 0 {
if newStat.GlobalLock != nil {
returnVal.HighestLocked = &LockStatus{
DBName: "",
Percentage: percentageInt64(newStat.GlobalLock.LockTime, newStat.GlobalLock.TotalTime),
Global: true,
}
}
} else {
// Get the entry with the highest lock
highestLocked := lockdiffs[len(lockdiffs)-1]
var timeDiffMillis int64
timeDiffMillis = newStat.UptimeMillis - oldStat.UptimeMillis
lockToReport := highestLocked.Writes
// if the highest locked namespace is not '.'
if highestLocked.Namespace != "." {
for _, namespaceLockInfo := range lockdiffs {
if namespaceLockInfo.Namespace == "." {
lockToReport += namespaceLockInfo.Writes
}
}
}
// lock data is in microseconds and uptime is in milliseconds - so
// divide by 1000 so that they units match
lockToReport /= 1000
returnVal.HighestLocked = &LockStatus{
DBName: highestLocked.Namespace,
Percentage: percentageInt64(lockToReport, timeDiffMillis),
Global: false,
}
}
}
} else {
returnVal.HighestLocked = nil
}
if newStat.GlobalLock != nil {
hasWT := (newStat.WiredTiger != nil && oldStat.WiredTiger != nil)
//If we have wiredtiger stats, use those instead
if newStat.GlobalLock.CurrentQueue != nil {
if hasWT {
returnVal.QueuedReaders = newStat.GlobalLock.CurrentQueue.Readers + newStat.GlobalLock.ActiveClients.Readers - newStat.WiredTiger.Concurrent.Read.Out
returnVal.QueuedWriters = newStat.GlobalLock.CurrentQueue.Writers + newStat.GlobalLock.ActiveClients.Writers - newStat.WiredTiger.Concurrent.Write.Out
if returnVal.QueuedReaders < 0 {
returnVal.QueuedReaders = 0
}
if returnVal.QueuedWriters < 0 {
returnVal.QueuedWriters = 0
}
} else {
returnVal.QueuedReaders = newStat.GlobalLock.CurrentQueue.Readers
returnVal.QueuedWriters = newStat.GlobalLock.CurrentQueue.Writers
}
}
if hasWT {
returnVal.ActiveReaders = newStat.WiredTiger.Concurrent.Read.Out
returnVal.ActiveWriters = newStat.WiredTiger.Concurrent.Write.Out
} else if newStat.GlobalLock.ActiveClients != nil {
returnVal.ActiveReaders = newStat.GlobalLock.ActiveClients.Readers
returnVal.ActiveWriters = newStat.GlobalLock.ActiveClients.Writers
}
}
if oldStat.Network != nil && newStat.Network != nil {
returnVal.NetIn = diff(newStat.Network.BytesIn, oldStat.Network.BytesIn, sampleSecs)
returnVal.NetOut = diff(newStat.Network.BytesOut, oldStat.Network.BytesOut, sampleSecs)
}
if newStat.Connections != nil {
returnVal.NumConnections = newStat.Connections.Current
}
newReplStat := *newMongo.ReplSetStatus
if newReplStat.Members != nil {
myName := newStat.Repl.Me
// Find the master and myself
master := ReplSetMember{}
me := ReplSetMember{}
for _, member := range newReplStat.Members {
if member.Name == myName {
// Store my state string
returnVal.NodeState = member.StateStr
if member.State == 1 {
// I'm the master
returnVal.ReplLag = 0
break
} else {
// I'm secondary
me = member
}
} else if member.State == 1 {
// Master found
master = member
}
}
if me.State == 2 {
// OptimeDate.Unix() type is int64
lag := master.OptimeDate.Unix() - me.OptimeDate.Unix()
if lag < 0 {
returnVal.ReplLag = 0
} else {
returnVal.ReplLag = lag
}
}
}
newClusterStat := *newMongo.ClusterStatus
returnVal.JumboChunksCount = newClusterStat.JumboChunksCount
newDbStats := *newMongo.DbStats
for _, db := range newDbStats.Dbs {
dbStatsData := db.DbStatsData
// mongos doesn't have the db key, so setting the db name
if dbStatsData.Db == "" {
dbStatsData.Db = db.Name
}
dbStatLine := &DbStatLine{
Name: dbStatsData.Db,
Collections: dbStatsData.Collections,
Objects: dbStatsData.Objects,
AvgObjSize: dbStatsData.AvgObjSize,
DataSize: dbStatsData.DataSize,
StorageSize: dbStatsData.StorageSize,
NumExtents: dbStatsData.NumExtents,
Indexes: dbStatsData.Indexes,
IndexSize: dbStatsData.IndexSize,
Ok: dbStatsData.Ok,
}
returnVal.DbStatsLines = append(returnVal.DbStatsLines, *dbStatLine)
}
return returnVal
}