Date: Wed, 25 Jul 2018 22:31:48 -0400 From: "Mikhail T." <mi+m@aldan.algebra.com> To: Kirk McKusick <mckusick@mckusick.com> Cc: "Mikhail T." <mi+thun@aldan.algebra.com>, fs@freebsd.org Subject: Re: core dumps onto ZFS Message-ID: <2EEED9B8-A743-4901-8539-9A8C2E42ED21@aldan.algebra.com> In-Reply-To: <201807252259.w6PMxhDt055842@chez.mckusick.com> References: <201807252259.w6PMxhDt055842@chez.mckusick.com>
next in thread | previous in thread | raw e-mail | index | archive | help
No, most certainly not. In fact, it is hardly used at all... Only about 15% o= f the 9TB... Maybe, the log-device filled up - not sure. Could core-dumping be bypassing something, thus triggering what normal writi= ng would not? --=20 Sent from mobile device, please, pardon shorthand. 25 =D0=BB=D0=B8=D0=BF. 2018 =D1=80. =D0=BE 18:59 Kirk McKusick <mckusick@mck= usick.com> =D0=BF=D0=B8=D1=88=D0=B5: > Is there any chance that your filesystem was more than 90% full? >=20 > Once ZFS gets past 90% full its performance drops precipitously. > As it approaches completely full it locks up for minutes per write > doing huge numbers of writes to its pool in an attempt to consolodate > what little free space it has left into something big enough for > it to use (which it sounds like is happening to you). >=20 > Kirk McKusick
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?2EEED9B8-A743-4901-8539-9A8C2E42ED21>