What Flowmill Collects
The Flowmill agent collects metrics on a per second per socket basis. These metrics are collected automatically by the eBPF-based kernel collector with no changes required to the code or container images.
Metric | Details |
TCP Throughput | Measured by the Linux kernel |
TCP Packet Rate | Measured by the Linux kernel |
Retransmission Rate / Packet Loss | Measured by the Linux kernel |
Connection Failures | "Syn" timeouts based on failure of the TCP handshake |
New Socket Rate | Number of new sockets created per second |
Average Round Trip Time | Based on kernel TCP transmission estimators |
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UDP Throughput | Measured by Linux kernel |
UDP Packet Rate | Measured by Linux kernel |
UDP Active Connection Rate | Measured by Linux kernel |
UDP Kernel Drop Rate | Measured by Linux kernel |
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HTTP Success Rate (200) | Supports HTTP 1.0/1.1, unencrypted traffic |
HTTP Client Error Rate (400) | Supports HTTP 1.0/1.1, unencrypted traffic |
HTTP Server Error Rate (500) | Supports HTTP 1.0/1.1, unencrypted traffic |
HTTP Other Rate (100's, 300's, other) | Supports HTTP 1.0/1.1, unencrypted traffic |
Average HTTP Latency | Supports HTTP 1.0/1.1, unencrypted traffic |
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DNS Response Rate | Based on DNS traffic from each process |
DNS Error Rate | Based on DNS traffic from each process |
Average DNS Latency | Based on DNS traffic from each process |
Grouping hierarchies provide labels around this data.
Physical Groupings | Description |
Zone | Physical location |
Host | name of the host or node |
Address | (ie. container IP if different than host) |
Process | Process name from Linux |
Logical Groupings | Description |
Namespace | Grouping mechanism for services. Can be collected from orchestration like Kubernetes |
Service | Distributed service / function. Also frequently collected from the orchestration layer if possible |
Version | Container / Docker version (or user defined) |
Port | L4 port (only common ports are labeled) |
Type | Description of how Flowmill dervied the service name. |
