Mailing List Archive

varnish crush every 30 minutes in high pressure
Hi
Im using varnish , before i hadn't any problem in varnish but today after crushing my dns (I fixed it now) and in high pressure , it
restart whole machine almost every 30 minutes even Netdata that i'm using for monitoring and it shows in service status:

Sep 26 13:49:48 varnish-1 varnishd[945]: Child (1548) not responding to CLI, killed it.
Sep 26 13:49:48 varnish-1 varnishd[945]: Unexpected reply from ping: 400 CLI communication error (hdr)
Sep 26 13:49:48 varnish-1 varnishd[945]: Child (1548) died signal=9



What should i do for this problem?
My varnish version:

varnishd (varnish-6.0.5 revision 3065ccaacc4bb537fb976a524bd808db42c5fe40)
Copyright (c) 2006 Verdens Gang AS
Copyright (c) 2006-2019 Varnish Software AS
Re: varnish crush every 30 minutes in high pressure [ In reply to ]
On 2020-09-26 12:39, Hamidreza Hosseini wrote:

> Im using varnish , before i hadn't any problem in varnish but today after crushing my dns (I fixed it now) and in high pressure , it
> restart whole machine almost every 30 minutes

It could be this: when the filesystem that contains the shared memory
files comes under I/O load, communication through the shared memory can
stall.

I'd recommend putting them on a tmpfs/RAM-disk (and/or modify the
"dirty-background-bytes" system setting so the OS doesn't accumulate
large amounts of dirty cached data).
_______________________________________________
varnish-misc mailing list
varnish-misc@varnish-cache.org
https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc
Re: varnish crush every 30 minutes in high pressure [ In reply to ]
Hi guys,
I want to upgrade my varnish but I didnt know what is difference between varnish 6.0.* and 6.5.* !
Are varnish 6.0.* LTS versions and varnish 6.5.* the latest?
which major version should I install for production?
________________________________
From: Hamidreza Hosseini
Sent: Saturday, September 26, 2020 3:39 AM
To: varnish-misc@varnish-cache.org <varnish-misc@varnish-cache.org>
Subject: varnish crush every 30 minutes in high pressure


Hi
Im using varnish , before i hadn't any problem in varnish but today after crushing my dns (I fixed it now) and in high pressure , it
restart whole machine almost every 30 minutes even Netdata that i'm using for monitoring and it shows in service status:

Sep 26 13:49:48 varnish-1 varnishd[945]: Child (1548) not responding to CLI, killed it.
Sep 26 13:49:48 varnish-1 varnishd[945]: Unexpected reply from ping: 400 CLI communication error (hdr)
Sep 26 13:49:48 varnish-1 varnishd[945]: Child (1548) died signal=9



What should i do for this problem?
My varnish version:

varnishd (varnish-6.0.5 revision 3065ccaacc4bb537fb976a524bd808db42c5fe40)
Copyright (c) 2006 Verdens Gang AS
Copyright (c) 2006-2019 Varnish Software AS
Re: varnish crush every 30 minutes in high pressure [ In reply to ]
Hi,

Go with the LTS unless you need features from 6.5, it will be supported for
a longer time.

Cheers,

On Sat, Feb 13, 2021, 02:45 Hamidreza Hosseini <hrhosseini@hotmail.com>
wrote:

> Hi guys,
> I want to upgrade my varnish but I didnt know what is difference between
> varnish 6.0.* and 6.5.* !
> Are varnish 6.0.* LTS versions and varnish 6.5.* the latest?
> which major version should I install for production?
> ------------------------------
> *From:* Hamidreza Hosseini
> *Sent:* Saturday, September 26, 2020 3:39 AM
> *To:* varnish-misc@varnish-cache.org <varnish-misc@varnish-cache.org>
> *Subject:* varnish crush every 30 minutes in high pressure
>
>
> Hi
> Im using varnish , before i hadn't any problem in varnish but today after
> crushing my dns (I fixed it now) and in high pressure , it
> restart whole machine almost every 30 minutes even Netdata that i'm using
> for monitoring and it shows in service status:
>
> Sep 26 13:49:48 varnish-1 varnishd[945]: Child (1548) not responding to CLI, killed it.
> Sep 26 13:49:48 varnish-1 varnishd[945]: Unexpected reply from ping: 400 CLI communication error (hdr)
> Sep 26 13:49:48 varnish-1 varnishd[945]: Child (1548) died signal=9
>
>
> What should i do for this problem?
> My varnish version:
>
> varnishd (varnish-6.0.5 revision 3065ccaacc4bb537fb976a524bd808db42c5fe40)
> Copyright (c) 2006 Verdens Gang AS
> Copyright (c) 2006-2019 Varnish Software AS
>
>
> _______________________________________________
> varnish-misc mailing list
> varnish-misc@varnish-cache.org
> https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc
>