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Yandex Unified Agent metrics

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Updated at April 28, 2025

This section describes Unified Agent metrics delivered to Monitoring.

The name label contains the metric name.

All Unified Agent metrics share the service=custom label.

Native Unified Agent metrics

Metric name
Type, units		 Description
ua.backlog
DGAUGE, count		 Number of incoming messages for which no outgoing messages have been sent yet. It includes messages from the storage and all pending incoming messages. You can safely delete Unified Agent along with its on-disk directories if this metric equals zero and shows no increase.
ua.bytes_lost
RATE, bytes		 Size of data lost in transit
ua.errors
RATE, count		 Number of Unified Agent events with the ERROR level, such as data loss due to a corrupted file on disk or exceeded limits, plugin errors while creating a session, or unavailable external services.
ua.messages_lost
RATE, count		 Number of messages lost in transit
ua.metrics_lost
RATE, count		 Number of metrics lost in transit

Memory metrics

These metrics are collected from the /proc/meminfo file.

Metric name Type
sys.memory.Active DGAUGE
sys.memory.ActiveAnon DGAUGE
sys.memory.ActiveFile DGAUGE
sys.memory.AnonHugePages DGAUGE
sys.memory.AnonPages DGAUGE
sys.memory.Buffers DGAUGE
sys.memory.Cached DGAUGE
sys.memory.CommitLimit DGAUGE
sys.memory.Committed_AS DGAUGE
sys.memory.Dirty DGAUGE
sys.memory.Inactive DGAUGE
sys.memory.InactiveAnon DGAUGE
sys.memory.InactiveFile DGAUGE
sys.memory.MajorPageFaults RATE
sys.memory.Mapped DGAUGE
sys.memory.MemAvailable DGAUGE
sys.memory.MemFree DGAUGE
sys.memory.MemTotal DGAUGE
sys.memory.Mlocked DGAUGE
sys.memory.PageTables DGAUGE
sys.memory.SReclaimable DGAUGE
sys.memory.SUnreclaim DGAUGE
sys.memory.Shmem DGAUGE
sys.memory.Slab DGAUGE
sys.memory.SwapCached DGAUGE
sys.memory.SwapFree DGAUGE
sys.memory.SwapTotal DGAUGE
sys.memory.Unevictable DGAUGE
sys.memory.Writeback DGAUGE

CPU metrics

These metrics are collected from the /proc/cpuinfo file.

Metric name Type
sys.cpu.CpuCores DGAUGE
sys.cpu.PhysicalCpuFrequency.Avg DGAUGE
sys.cpu.PhysicalCpuFrequency.Max DGAUGE
sys.cpu.PhysicalCpuFrequency.Min DGAUGE

File system metrics

Metric name Type
sys.filesystem.FreeB DGAUGE
sys.filesystem.INodeFree DGAUGE
sys.filesystem.INodeTotal DGAUGE
sys.filesystem.INodeUsed DGAUGE
sys.filesystem.SizeB DGAUGE
sys.filesystem.UsedB DGAUGE

Core metrics

These metrics are collected from the /proc/loadavg and /proc/stat files.

Metric name Type
sys.proc.La DGAUGE
sys.proc.LoadAverage15min DGAUGE
sys.proc.LoadAverage1min DGAUGE
sys.proc.LoadAverage5min DGAUGE
sys.proc.ProcsBlocked DGAUGE
sys.proc.ProcsRunning DGAUGE
sys.proc.Threads DGAUGE

Disk metrics

Metric name Type
sys.io.Disks.IOMillisec RATE
sys.io.Disks.IOServiceTime DGAUGE
sys.io.Disks.IOsInProgress DGAUGE
sys.io.Disks.ReadBytes RATE
sys.io.Disks.ReadWaitMillisec RATE
sys.io.Disks.ReadWaitMillisecAvg DGAUGE
sys.io.Disks.Reads RATE
sys.io.Disks.TimeInQueueMillisec RATE
sys.io.Disks.WriteBytes RATE
sys.io.Disks.WriteWaitMillisec RATE
sys.io.Disks.WriteWaitMillisecAvg DGAUGE
sys.io.Disks.Writes RATE

Network metrics

These metrics are collected from the /proc/net/dev file.

Metric name Type
sys.net.Ifs.RxBytes RATE
sys.net.Ifs.RxDrop RATE
sys.net.Ifs.RxErrs RATE
sys.net.Ifs.RxPackets RATE
sys.net.Ifs.TxBytes RATE
sys.net.Ifs.TxDrop RATE
sys.net.Ifs.TxErrs RATE
sys.net.Ifs.TxPackets RATE

System metrics

Metric name Type
sys.system.GuestNiceTime RATE
sys.system.GuestTime RATE
sys.system.IdleTime RATE
sys.system.IoWaitTime RATE
sys.system.IrqTime RATE
sys.system.NiceTime RATE
sys.system.StealTime RATE
sys.system.SystemTime RATE
sys.system.UpTime RATE
sys.system.UpTimeRaw DGAUGE
sys.system.UsefulTime 1 RATE
sys.system.UserTime RATE

1 Metric is delivered by agent 24.05.01 or higher.

See the description of Linux system metrics in the Linux manuals, e.g., Linux manual page.

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