Hi Ritesh,
I am no expert on these matters, but have you thought about defective
memory on this specific machine? I certainly looks very wrong to me and
the first thing i would try is run an extensive memory test. If your
systems memory is faulty, then all bets are off and trying to debug
memory corruptions is a fools errant.
Hope this helps
On 10/19/22 14:20, 'Ritesh' via golang-nuts wrote:
We are facing a strange issue within one of our services where randomly
one of the docker containers in production out of (N, N>50) starts
randomly failing on an API while trying to execute a golang template
with an error *"Err: template: <template name>: executing \"<template
name>\" at len: \"len\" is not a defined function". *`len` is a builtin
function within golang so am stumped why this error comes. Some more
context
* *Golang Version: 1.15*
* The same Pod was serving this API and executing the template
correctly before this issue started coming
* Parsing the template works fine, only executing fails. We are
parsing and executing in sequence.
* After this error was encountered first, all subsequent API calls to
the same container failed with the same error
* The same API on all other containers works perfectly fine. We
removed the container from serving prod traffic, and this issue
disappeared
* This is the second time the issue is happening, first time we
restarted the container and hence weren't able to debug much
* Binary is stripped of symbol tables and ptrace is not enabled
We have the container running (not serving prod traffic) so if there are
any hints on how to debug this issue would appreciate.
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