[Bug]: 100% CPU Usage
Floyz opened this issue · comments
Bug description
Netdata is using 100% of 1 core on my CPU causing temp to raise
Expected behavior
not consuming 100% CPU
Steps to reproduce
Start the netdata agent
Installation method
kickstart.sh
System info
5.10.0-18-amd64 #1 SMP Debian 5.10.140-1 (2022-09-02) x86_64 GNU/Linux
/etc/os-release:PRETTY_NAME="Debian GNU/Linux 11 (bullseye)"
/etc/os-release:NAME="Debian GNU/Linux"
/etc/os-release:VERSION_ID="11"
/etc/os-release:VERSION="11 (bullseye)"
/etc/os-release:VERSION_CODENAME=bullseye
/etc/os-release:ID=debianNetdata build info
Packaging:
Netdata Version ____________________________________________ : v1.45.0-113-nightly
Installation Type __________________________________________ : binpkg-deb
Package Architecture _______________________________________ : x86_64
Package Distro _____________________________________________ :
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 ___________________________________________ : /var/lib/netdata/www
Log Files __________________________________________________ : /var/log/netdata
Lock Files _________________________________________________ : /var/lib/netdata/lock
Home _______________________________________________________ : /var/lib/netdata
Operating System:
Kernel _____________________________________________________ : Linux
Kernel Version _____________________________________________ : 5.10.0-18-amd64
Operating System ___________________________________________ : Debian GNU/Linux
Operating System ID ________________________________________ : debian
Operating System ID Like ___________________________________ : unknown
Operating System Version ___________________________________ : 11 (bullseye)
Operating System Version ID ________________________________ : none
Detection __________________________________________________ : /etc/os-release
Hardware:
CPU Cores __________________________________________________ :
CPU Frequency ______________________________________________ : 2800000000
RAM Bytes __________________________________________________ : 33279152128
Disk Capacity ______________________________________________ : 3024608477184
CPU Architecture ___________________________________________ : x86_64
Virtualization Technology __________________________________ : none
Virtualization Detection ___________________________________ : systemd-detect-virt
Container:
Container __________________________________________________ : none
Container Detection ________________________________________ : systemd-detect-virt
Container Orchestrator _____________________________________ : none
Container Operating System _________________________________ : none
Container Operating System ID ______________________________ : none
Container Operating System ID Like _________________________ : none
Container Operating System Version _________________________ : none
Container Operating System Version ID ______________________ : none
Container Operating System Detection _______________________ : none
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) _____________________ : YES
ebpf (monitor system calls) ________________________________ : YES
freeipmi (monitor enterprise server H/W) ___________________ : YES
nfacct (gather netfilter accounting) _______________________ : YES
perf (collect kernel performance events) ___________________ : YES
slabinfo (monitor kernel object caching) ___________________ : YES
Xen ________________________________________________________ : YES
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
No response
Hi @Floyz , thanks for reporting. Can you please do the following
- Stop the Netdata agent (make sure it is stopped)
- Run
sudo /usr/sbin/netdata -W sqlite-analyze - Start the Netdata agent
And check if the issue reappears?
Hello !
I did your steps, started the service, then issue started to show ( to be noted: the issue seems to start around one minute after service start, not immediatly)
I also tried to clean the cache and stop/restart service before openning the ticket but no effect ( rm -rf var/cache/netdata/* )
Hi @Floyz , when this occurs would it be possible to stop the agent and submit /var/cache/netdata/netdata-meta.db to stelios@netdata.cloud for investigation?
Hello ! just shared the file through wetransfer to the provided mail :)
Regards
Hello ! just shared the file through wetransfer to the provided mail :) Regards
We will start the investigation, thank you!
Hi @Floyz, can you update to the latest nightly (if not already updated) then please do the following
- Stop the agent
- Run
sudo /usr/sbin/netdata -W sqlite-alert-cleanup - Restart the agent
And see if that resolves the issue