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I started observing around 17% CPU usage on my backup machine and 25% on my Raspberry Pi, though nothing changed on my main server.
It's quite a mystery to me as the two machines that exhibit the behavior have almost no containers running, whereas my main server does have many.
It seems to be the cgroups plugin's thread.
I initially thought it was related to #16818 and tried to delete the cache, but it made no difference.
Low CPU usage
I have no idea. It just started acting up.
docker
Linux Backup 6.1.99-Unraid #1 SMP PREEMPT_DYNAMIC Tue Jul 16 10:06:03 PDT 2024 x86_64 Intel(R) Celeron(R) J4105 CPU @ 1.50GHz GenuineIntel GNU/Linux /etc/os-release:NAME=Slackware /etc/os-release:VERSION="15.0" /etc/os-release:ID=slackware /etc/os-release:VERSION_ID=15.0 /etc/os-release:PRETTY_NAME="Slackware 15.0 x86_64 (post 15.0 -current)" /etc/os-release:ANSI_COLOR="0;34" /etc/os-release:CPE_NAME="cpe:/o:slackware:slackware_linux:15.0" /etc/os-release:VERSION_CODENAME=current
Packaging: Netdata Version ____________________________________________ : v1.46.3 Installation Type __________________________________________ : oci Package Architecture _______________________________________ : x86_64 Package Distro _____________________________________________ : unknown Configure Options __________________________________________ : dummy-configure-command Default Directories: User Configurations ________________________________________ : /etc/netdata Stock Configurations _______________________________________ : /usr/lib/netdata/conf.d Ephemeral Databases (metrics data, metadata) _______________ : /var/cache/netdata Permanent Databases ________________________________________ : /var/lib/netdata Plugins ____________________________________________________ : /usr/libexec/netdata/plugins.d Static Web Files ___________________________________________ : /usr/share/netdata/web Log Files __________________________________________________ : /var/log/netdata Lock Files _________________________________________________ : /var/lib/netdata/lock Home _______________________________________________________ : /var/lib/netdata Operating System: Kernel _____________________________________________________ : Linux Kernel Version _____________________________________________ : 6.1.99-Unraid Operating System ___________________________________________ : unknown Operating System ID ________________________________________ : unknown Operating System ID Like ___________________________________ : unknown Operating System Version ___________________________________ : unknown Operating System Version ID ________________________________ : 12 Detection __________________________________________________ : unknown Hardware: CPU Cores __________________________________________________ : 4 CPU Frequency ______________________________________________ : 2500000000 RAM Bytes __________________________________________________ : 16422854656 Disk Capacity ______________________________________________ : 22097013596160 CPU Architecture ___________________________________________ : x86_64 Virtualization Technology __________________________________ : none Virtualization Detection ___________________________________ : none Container: Container __________________________________________________ : docker Container Detection ________________________________________ : dockerenv Container Orchestrator _____________________________________ : none Container Operating System _________________________________ : Debian GNU/Linux Container Operating System ID ______________________________ : debian Container Operating System ID Like _________________________ : unknown Container Operating System Version _________________________ : 12 (bookworm) Container Operating System Version ID ______________________ : 12 Container Operating System Detection _______________________ : /etc/os-release Features: Built For __________________________________________________ : Linux Netdata Cloud ______________________________________________ : YES Health (trigger alerts and send notifications) _____________ : YES Streaming (stream metrics to parent Netdata servers) _______ : YES Back-filling (of higher database tiers) ____________________ : YES Replication (fill the gaps of parent Netdata servers) ______ : YES Streaming and Replication Compression ______________________ : YES (zstd lz4 gzip) Contexts (index all active and archived metrics) ___________ : YES Tiering (multiple dbs with different metrics resolution) ___ : YES (5) Machine Learning ___________________________________________ : YES Database Engines: dbengine (compression) _____________________________________ : YES (zstd lz4) alloc ______________________________________________________ : YES ram ________________________________________________________ : YES none _______________________________________________________ : YES Connectivity Capabilities: ACLK (Agent-Cloud Link: MQTT over WebSockets over TLS) _____ : YES static (Netdata internal web server) _______________________ : YES h2o (web server) ___________________________________________ : YES WebRTC (experimental) ______________________________________ : NO Native HTTPS (TLS Support) _________________________________ : YES TLS Host Verification ______________________________________ : YES Libraries: LZ4 (extremely fast lossless compression algorithm) ________ : YES ZSTD (fast, lossless compression algorithm) ________________ : YES zlib (lossless data-compression library) ___________________ : YES Brotli (generic-purpose lossless compression algorithm) ____ : NO protobuf (platform-neutral data serialization protocol) ____ : YES (system) OpenSSL (cryptography) _____________________________________ : YES libdatachannel (stand-alone WebRTC data channels) __________ : NO JSON-C (lightweight JSON manipulation) _____________________ : YES libcap (Linux capabilities system operations) ______________ : NO libcrypto (cryptographic functions) ________________________ : YES libyaml (library for parsing and emitting YAML) ____________ : YES Plugins: apps (monitor processes) ___________________________________ : YES cgroups (monitor containers and VMs) _______________________ : YES cgroup-network (associate interfaces to CGROUPS) ___________ : YES proc (monitor Linux systems) _______________________________ : YES tc (monitor Linux network QoS) _____________________________ : YES diskspace (monitor Linux mount points) _____________________ : YES freebsd (monitor FreeBSD systems) __________________________ : NO macos (monitor MacOS systems) ______________________________ : NO statsd (collect custom application metrics) ________________ : YES timex (check system clock synchronization) _________________ : YES idlejitter (check system latency and jitter) _______________ : YES bash (support shell data collection jobs - charts.d) _______ : YES debugfs (kernel debugging metrics) _________________________ : YES cups (monitor printers and print jobs) _____________________ : NO ebpf (monitor system calls) ________________________________ : NO freeipmi (monitor enterprise server H/W) ___________________ : YES nfacct (gather netfilter accounting) _______________________ : NO perf (collect kernel performance events) ___________________ : YES slabinfo (monitor kernel object caching) ___________________ : YES Xen ________________________________________________________ : NO Xen VBD Error Tracking _____________________________________ : NO Logs Management ____________________________________________ : YES Exporters: AWS Kinesis ________________________________________________ : NO GCP PubSub _________________________________________________ : NO MongoDB ____________________________________________________ : YES Prometheus (OpenMetrics) Exporter __________________________ : YES Prometheus Remote Write ____________________________________ : YES Graphite ___________________________________________________ : YES Graphite HTTP / HTTPS ______________________________________ : YES JSON _______________________________________________________ : YES JSON HTTP / HTTPS __________________________________________ : YES OpenTSDB ___________________________________________________ : YES OpenTSDB HTTP / HTTPS ______________________________________ : YES All Metrics API ____________________________________________ : YES Shell (use metrics in shell scripts) _______________________ : YES Debug/Developer Features: Trace All Netdata Allocations (with charts) ________________ : NO Developer Mode (more runtime checks, slower) _______________ : NO
netdata.zip
The text was updated successfully, but these errors were encountered:
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Bug description
I started observing around 17% CPU usage on my backup machine and 25% on my Raspberry Pi, though nothing changed on my main server.
It's quite a mystery to me as the two machines that exhibit the behavior have almost no containers running, whereas my main server does have many.
It seems to be the cgroups plugin's thread.
I initially thought it was related to #16818 and tried to delete the cache, but it made no difference.
Expected behavior
Low CPU usage
Steps to reproduce
I have no idea. It just started acting up.
Installation method
docker
System info
Netdata build info
Packaging: Netdata Version ____________________________________________ : v1.46.3 Installation Type __________________________________________ : oci Package Architecture _______________________________________ : x86_64 Package Distro _____________________________________________ : unknown Configure Options __________________________________________ : dummy-configure-command Default Directories: User Configurations ________________________________________ : /etc/netdata Stock Configurations _______________________________________ : /usr/lib/netdata/conf.d Ephemeral Databases (metrics data, metadata) _______________ : /var/cache/netdata Permanent Databases ________________________________________ : /var/lib/netdata Plugins ____________________________________________________ : /usr/libexec/netdata/plugins.d Static Web Files ___________________________________________ : /usr/share/netdata/web Log Files __________________________________________________ : /var/log/netdata Lock Files _________________________________________________ : /var/lib/netdata/lock Home _______________________________________________________ : /var/lib/netdata Operating System: Kernel _____________________________________________________ : Linux Kernel Version _____________________________________________ : 6.1.99-Unraid Operating System ___________________________________________ : unknown Operating System ID ________________________________________ : unknown Operating System ID Like ___________________________________ : unknown Operating System Version ___________________________________ : unknown Operating System Version ID ________________________________ : 12 Detection __________________________________________________ : unknown Hardware: CPU Cores __________________________________________________ : 4 CPU Frequency ______________________________________________ : 2500000000 RAM Bytes __________________________________________________ : 16422854656 Disk Capacity ______________________________________________ : 22097013596160 CPU Architecture ___________________________________________ : x86_64 Virtualization Technology __________________________________ : none Virtualization Detection ___________________________________ : none Container: Container __________________________________________________ : docker Container Detection ________________________________________ : dockerenv Container Orchestrator _____________________________________ : none Container Operating System _________________________________ : Debian GNU/Linux Container Operating System ID ______________________________ : debian Container Operating System ID Like _________________________ : unknown Container Operating System Version _________________________ : 12 (bookworm) Container Operating System Version ID ______________________ : 12 Container Operating System Detection _______________________ : /etc/os-release Features: Built For __________________________________________________ : Linux Netdata Cloud ______________________________________________ : YES Health (trigger alerts and send notifications) _____________ : YES Streaming (stream metrics to parent Netdata servers) _______ : YES Back-filling (of higher database tiers) ____________________ : YES Replication (fill the gaps of parent Netdata servers) ______ : YES Streaming and Replication Compression ______________________ : YES (zstd lz4 gzip) Contexts (index all active and archived metrics) ___________ : YES Tiering (multiple dbs with different metrics resolution) ___ : YES (5) Machine Learning ___________________________________________ : YES Database Engines: dbengine (compression) _____________________________________ : YES (zstd lz4) alloc ______________________________________________________ : YES ram ________________________________________________________ : YES none _______________________________________________________ : YES Connectivity Capabilities: ACLK (Agent-Cloud Link: MQTT over WebSockets over TLS) _____ : YES static (Netdata internal web server) _______________________ : YES h2o (web server) ___________________________________________ : YES WebRTC (experimental) ______________________________________ : NO Native HTTPS (TLS Support) _________________________________ : YES TLS Host Verification ______________________________________ : YES Libraries: LZ4 (extremely fast lossless compression algorithm) ________ : YES ZSTD (fast, lossless compression algorithm) ________________ : YES zlib (lossless data-compression library) ___________________ : YES Brotli (generic-purpose lossless compression algorithm) ____ : NO protobuf (platform-neutral data serialization protocol) ____ : YES (system) OpenSSL (cryptography) _____________________________________ : YES libdatachannel (stand-alone WebRTC data channels) __________ : NO JSON-C (lightweight JSON manipulation) _____________________ : YES libcap (Linux capabilities system operations) ______________ : NO libcrypto (cryptographic functions) ________________________ : YES libyaml (library for parsing and emitting YAML) ____________ : YES Plugins: apps (monitor processes) ___________________________________ : YES cgroups (monitor containers and VMs) _______________________ : YES cgroup-network (associate interfaces to CGROUPS) ___________ : YES proc (monitor Linux systems) _______________________________ : YES tc (monitor Linux network QoS) _____________________________ : YES diskspace (monitor Linux mount points) _____________________ : YES freebsd (monitor FreeBSD systems) __________________________ : NO macos (monitor MacOS systems) ______________________________ : NO statsd (collect custom application metrics) ________________ : YES timex (check system clock synchronization) _________________ : YES idlejitter (check system latency and jitter) _______________ : YES bash (support shell data collection jobs - charts.d) _______ : YES debugfs (kernel debugging metrics) _________________________ : YES cups (monitor printers and print jobs) _____________________ : NO ebpf (monitor system calls) ________________________________ : NO freeipmi (monitor enterprise server H/W) ___________________ : YES nfacct (gather netfilter accounting) _______________________ : NO perf (collect kernel performance events) ___________________ : YES slabinfo (monitor kernel object caching) ___________________ : YES Xen ________________________________________________________ : NO Xen VBD Error Tracking _____________________________________ : NO Logs Management ____________________________________________ : YES Exporters: AWS Kinesis ________________________________________________ : NO GCP PubSub _________________________________________________ : NO MongoDB ____________________________________________________ : YES Prometheus (OpenMetrics) Exporter __________________________ : YES Prometheus Remote Write ____________________________________ : YES Graphite ___________________________________________________ : YES Graphite HTTP / HTTPS ______________________________________ : YES JSON _______________________________________________________ : YES JSON HTTP / HTTPS __________________________________________ : YES OpenTSDB ___________________________________________________ : YES OpenTSDB HTTP / HTTPS ______________________________________ : YES All Metrics API ____________________________________________ : YES Shell (use metrics in shell scripts) _______________________ : YES Debug/Developer Features: Trace All Netdata Allocations (with charts) ________________ : NO Developer Mode (more runtime checks, slower) _______________ : NOAdditional info
netdata.zip
The text was updated successfully, but these errors were encountered: