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From: Vitaly Fertman <vitaly@sun.com>
To: lustre-devel@lists.lustre.org
Subject: [Lustre-devel] storing SOM epoch in EA
Date: Tue, 19 Feb 2008 18:28:05 +0300	[thread overview]
Message-ID: <200802191828.05848.vitaly@sun.com> (raw)
In-Reply-To: <47BAF252.9050409@sun.com>

> I did not mean to put whole inode in IAM. I meant only put there fid as 
> key and epoch as value. So way to access epoch is shorter with IAM as no 
> need to load inode. But these all need to be well thought as all your 
> mention more seeks, new reads, etc.

as Alex already mentioned, we do not need fid->ioepoch mapping.
ioepoch is a tag for inode attributes and all them need to be loaded
together, i.e. there is a need to load inode anyway.

-- 
Vitaly

  parent reply	other threads:[~2008-02-19 15:28 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-19  9:48 [Lustre-devel] storing SOM epoch in EA Alex Zhuravlev
2008-02-19 10:28 ` Yuriy Umanets
2008-02-19 10:30   ` Alex Zhuravlev
2008-02-19 10:38     ` Yuriy Umanets
2008-02-19 10:59   ` Vitaly Fertman
2008-02-19 11:11     ` Yuriy Umanets
2008-02-19 11:18       ` Alex Zhuravlev
2008-02-19 12:02         ` Yuriy Umanets
2008-02-19 12:09           ` Alex Zhuravlev
2008-02-19 14:28             ` Yuriy Umanets
2008-02-19 14:47               ` Alex Zhuravlev
2008-02-19 15:10                 ` Yuriy Umanets
2008-02-19 12:13           ` Alex Zhuravlev
2008-02-19 14:30             ` Yuriy Umanets
2008-02-19 14:36               ` Nikita Danilov
2008-02-19 14:44                 ` Yuriy Umanets
2008-02-19 14:39               ` Yuriy Umanets
2008-02-19 14:42               ` Alex Zhuravlev
2008-02-19 20:13               ` Andreas Dilger
2008-02-19 14:59           ` Mikhail Pershin
2008-02-19 15:11             ` Kalpak Shah
2008-02-19 15:23               ` Ricardo M. Correia
2008-02-19 15:14             ` Yuriy Umanets
2008-02-19 15:19               ` Alex Zhuravlev
2008-02-19 15:28               ` Vitaly Fertman [this message]
2008-02-19 15:18             ` Ricardo M. Correia
2008-02-19 16:21         ` Nikita Danilov
2008-02-19 16:27           ` Alex Zhuravlev
2008-02-20 16:10             ` Nikita Danilov
2008-02-19 15:31 ` Eric Barton
2008-02-19 15:42   ` Alex Zhuravlev
2008-02-19 20:19   ` Andreas Dilger
2008-02-19 20:33 ` [Lustre-devel] on-disk SOM attributes [former storing SOM epoch in EA] Vitaly Fertman

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