# PROCFILE: Cannot rewind on file '/proc/\[netdata\_pid\]/net/stat/{stat/nf\_conntrack,netstat,sockstat6,sockstat,dev,stat/nf\_conntrack,netstat,sockstat6,sockstat,dev}'. **URL:** \ **Category:** Help\ **Tags:** agent\ **Created:** [August 20, 2025, 5:56pm UTC](https://community.netdata.cloud/t/procfile-cannot-rewind-on-file-proc-netdata-pid-net-stat-stat-nf-conntrack-netstat-sockstat6-sockstat-dev-stat-nf-conntrack-netstat-sockstat6-sockstat-dev/7757 "2025-08-20T17:56:57Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![marcool04](https://avatars.discourse-cdn.com/v4/letter/m/3ab097/32.png) [@marcool04](https://community.netdata.cloud/u/marcool04)\ **Post date:** [August 20, 2025, 5:56pm UTC](https://community.netdata.cloud/t/procfile-cannot-rewind-on-file-proc-netdata-pid-net-stat-stat-nf-conntrack-netstat-sockstat6-sockstat-dev-stat-nf-conntrack-netstat-sockstat6-sockstat-dev/7757/1 "2025-08-20T17:56:57Z")
## Problem/Question The netdata agent is logging many messages of the form: ```auto netdata[538630]: PROCFILE: Cannot rewind on file '/proc/538630/net/stat/nf_conntrack'. netdata[538630]: PROCFILE: Cannot rewind on file '/proc/538630/net/netstat'. netdata[538630]: PROCFILE: Cannot rewind on file '/proc/538630/net/sockstat6'. netdata[538630]: PROCFILE: Cannot rewind on file '/proc/538630/net/sockstat'. netdata[538630]: PROCFILE: Cannot rewind on file '/proc/538630/net/dev'. netdata[538630]: PROCFILE: Cannot rewind on file '/proc/538630/net/stat/nf_conntrack'. netdata[538630]: PROCFILE: Cannot rewind on file '/proc/538630/net/netstat'. netdata[538630]: PROCFILE: Cannot rewind on file '/proc/538630/net/sockstat6'. netdata[538630]: PROCFILE: Cannot rewind on file '/proc/538630/net/sockstat'. netdata[538630]: PROCFILE: Cannot rewind on file '/proc/538630/net/dev'. ``` As you can see, this is copied from journald the netdata main process’ PID is included (538630), and the /proc/538630 that is causing the error therefore corresponds to netdata itself. This seems strange to me… This works fine for instance: ```auto sudo -u netdata -- cat /proc/538630/net/stat/nf_conntrack ``` More detailed error using `journalctl –output=json`: ```json {"_COMM":"netdata", "_BOOT_ID":"1a2d891f6af84bfea2c521c53fa22481", "ERRNO":"29", "_GID":"134", "MESSAGE":"PROCFILE: Cannot rewind on file '/proc/538630/net/dev'.", "_UID":"134", "CODE_FILE":"/usr/src/debug/netdata/netdata-v2.6.2/src/libnetdata/procfile/procfile.c", "THREAD_TAG":"P[proc netdev]", "__CURSOR":"s=e250ffab473647f2b579ad6018789b5f;i=4309a87;b=1a2d891f6af84bfea2c521c53fa22481;m=1ae261a28;t=63ccfd4620f7f;x=b16016026494a20a", "_SYSTEMD_SLICE":"system.slice", "PRIORITY":"3", "_SYSTEMD_UNIT":"netdata.service", "_CAP_EFFECTIVE":"0", "__REALTIME_TIMESTAMP":"1755713179357055", "SYSLOG_IDENTIFIER":"netdata", "CODE_FUNC":"procfile_readall", "_PID":"538630", "CODE_LINE":"336", "_RUNTIME_SCOPE":"system", "ND_LOG_SOURCE":"collector", "INVOCATION_ID":"7a30abc6be54417f8f8e3bc380706903", "__SEQNUM_ID":"e250ffab473647f2b579ad6018789b5f", "__SEQNUM":"70294151", "_HOSTNAME":"[REDACTED]", "_MACHINE_ID":"79fc3ff7cd964795a50c956771a0f31a", "__MONOTONIC_TIMESTAMP":"7216699944", "TID":"539441", "_EXE":"/usr/bin/netdata", "_SYSTEMD_INVOCATION_ID":"7a30abc6be54417f8f8e3bc380706903", "_TRANSPORT":"journal", "_SYSTEMD_CGROUP":"/system.slice/netdata.service", "_SOURCE_REALTIME_TIMESTAMP":"1755713179357022", "_CMDLINE":"/usr/bin/netdata -D"} ``` ## Relevant docs you followed/actions you took to solve the issue I could find no information on this error or any similar ones through searching the docs or this forum. ## Environment/Browser/Agent’s version etc Arch Linux, with netdata installed through the native pacman package. ```auto # pacman -Qi netdata Name : netdata Version : 2.6.2-1 [clip] ``` Also, maybe the systemd service used by this package to run netdata is relevant as it sets/limits capabilities: ```ini # /etc/systemd/system/netdata.service # SPDX-License-Identifier: GPL-3.0-or-later [Unit] Description=Real time performance monitoring # append here other services you want netdata to wait for them to start After=network.target httpd.service squid.service nfs-server.service mysqld.service mysql.service named.service postfix.service chronyd.service [Service] Type=simple User=netdata Group=netdata RuntimeDirectory=netdata CacheDirectory=netdata StateDirectory=netdata LogsDirectory=netdata RuntimeDirectoryMode=0775 StateDirectoryMode=0755 CacheDirectoryMode=0755 LogsDirectoryMode=2750 EnvironmentFile=-/etc/default/netdata ExecStart=/usr/bin/netdata -D $EXTRA_OPTS # saving a big db on slow disks may need some time TimeoutStopSec=150 # restart netdata if it crashes Restart=on-failure RestartSec=30 # Valid policies: other (the system default) | batch | idle | fifo | rr # To give netdata the max priority, set CPUSchedulingPolicy=rr and CPUSchedulingPriority=99 CPUSchedulingPolicy=batch # This sets the scheduling priority (for policies: rr and fifo). # Priority gets values 1 (lowest) to 99 (highest). #CPUSchedulingPriority=1 # For scheduling policy 'other' and 'batch', this sets the lowest niceness of netdata (-20 highest to 19 lowest). Nice=0 [Install] WantedBy=multi-user.target # /etc/systemd/system/netdata.service.d/override.conf [Unit] After=dns-ready.service [Service] ExecStartPre=/usr/bin/chown -R netdata:netdata /var/lib/netdata #CapabilityBoundingSet=~ ``` ## What I expected to happen This error message should not be logged I would imagine. It is certainly very frequent… (every 2 to 5 seconds). ---
**Author:** ![marcool04](https://avatars.discourse-cdn.com/v4/letter/m/3ab097/32.png) [@marcool04](https://community.netdata.cloud/u/marcool04)\ **Post date:** [September 4, 2025, 10:38am UTC](https://community.netdata.cloud/t/procfile-cannot-rewind-on-file-proc-netdata-pid-net-stat-stat-nf-conntrack-netstat-sockstat6-sockstat-dev-stat-nf-conntrack-netstat-sockstat6-sockstat-dev/7757/2 "2025-09-04T10:38:02Z")
For some reason, this has now stopped 🤷‍♂️