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Date:      Thu, 14 Jun 2018 16:09:05 -0400
From:      Mike Tancsa <mike@sentex.net>
To:        Albert Shih <Albert.Shih@obspm.fr>, freebsd-fs@freebsd.org
Subject:   Re: ZFS send problem
Message-ID:  <5428a0a5-1bbf-80e5-16b2-992b10b0a20c@sentex.net>
In-Reply-To: <20180614175445.GA1781@io.chezmoi.fr>
References:  <20180614175445.GA1781@io.chezmoi.fr>

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On 6/14/2018 1:54 PM, Albert Shih wrote:
> Hi,
> 
> I still got a very serious problem with zfs send (not recv).
> 
> If I set le vfs.zfs.arc_max at half of the RAM ( = 96Go) I can see thought
> zfs-stats the arc come to 100.3% and empty to 98-99% and raise again.
> Either way the zfs command not really freeze totally but take lot of time
> to answer (~10-20 seconds when normally it's < 1sec).

What version of FreeBSD are you running ?  Also, have you tried doing a
scrub on the pool to make sure there are no errors ? I take it zpool
status shows all is ok ?

Is this a straight up send or incremental ? Is it recursive or just part
of the pool ?

	---Mike


-- 
-------------------
Mike Tancsa, tel +1 519 651 3400 x203
Sentex Communications, mike@sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada



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