Date: Sat, 28 Apr 2012 02:09:43 -0400 From: Alejandro Imass <aimass@yabarana.com> To: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: UFS Crash and directories now missing Message-ID: <CAHieY7Qr7bRhhNYJZe1UB20CA63rzLn2XjKNeC-n5S_Kj9AXQw@mail.gmail.com> In-Reply-To: <alpine.BSF.2.00.1204280742281.8813@wojtek.tensor.gdynia.pl> References: <CAHieY7Tt_mMvjLjdfEL8Kp7scb%2BHwmC_P%2Bpz5U02gOVPavjupA@mail.gmail.com> <CAHieY7Sg8zQp5aUqxng5p7rkeoQog0Erc3mxsECzvKt_dwVZ1Q@mail.gmail.com> <alpine.BSF.2.00.1204280742281.8813@wojtek.tensor.gdynia.pl>
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On Sat, Apr 28, 2012 at 1:43 AM, Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> wrote: >> >> All the jails wound up in the /usr/local/etc/apache22 of the only >> surviving jail which is the http proxy to all the other jails. >> >> Right before the server crashed I noticed MySQL at 100% o several CPUs >> and the server was on it's knees, so I'm wondering.... was this an >> attack? is it possible that Apache or MySQL moved the files?? >> >> I mean the jails are there, I'm even backing them up right now.... but >> how did these directories move here????? >> >> Anybody has ANY logical explanation??? >> > 99% - someone did moved them. > 1% - hardware problem possibly memory. without this there is no way for > directory to be "accidentally" moved I somewhat agree, but it wasn't a person. I am the only administrator, the only one with root access. The jails were effectively moved to the /usr/local/etc/apache22 of the single that survived at the top level. I'm thinking something between mount, EzJail, the journal and the way MySQL created a great deal of head contention, so something must have gotten corrupted at the directory level like you state, but the strange part is no _data_ corruption as such, because I was able to physically archive the jails, move them to the correct directory and archived them all with ezjail-admin to a different disk. I was thinking of formatting the jails drive, but after all this disk activity and no errors, and everything booted up correctly, I am not so sure now that it's needed it.
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