X-Git-Url: http://git.vrable.net/?a=blobdiff_plain;f=NEWS;fp=NEWS;h=d1318ca12718cfc812c08c7f32576df64fa8b734;hb=be68c96ef7500b196bc347498b0e9a4a51663ba3;hp=32bea66abbb6b82606cb9870bf141c46c0bd8261;hpb=38ae53bac981d564d9f04c038a88d727289db5c8;p=cumulus.git diff --git a/NEWS b/NEWS index 32bea66..d1318ca 100644 --- a/NEWS +++ b/NEWS @@ -2,9 +2,10 @@ - SNAPSHOT FORMAT CHANGE: A few minor tweaks have been made to the snapshot format. There is nothing substantial--this is primarily a cleaning up of the format before use becomes more widespread. - Updated tools will be needed to properly understand the new - snapshots. Tools will continue to be able to read the old - snapshot format. + An efficient and explicit means for representing sparse files has + been added to the format. Updated tools will be needed to + properly understand the new snapshots. Tools will continue to be + able to read the old snapshot format. - LOCAL DATABASE CHANGE: The local database has been changed so that segment utilization data for past snapshots is stored more efficiently. The script in contrib/upgrade0.6-localdb.sql must be @@ -14,6 +15,14 @@ changed. The first backup will run more slowly since the old statcache data will be ignored. New statcache data will be written to statcache2. The old statcache file can be deleted. + - Metadata is shared between snapshots where possible. The + --full-metadata option can be used to disable this (completely + writing out all metadata with the new snapshot). + - Add an "intent" field to snapshots, which specifies informally how + long a snapshot is intended to be kept. For example, 1 can be + used for daily snapshots, and 7 for weekly snapshots. Segment + cleaning is now partly guided by intent values, but tuning of the + cleaning algorithms is not yet finished. 0.5.1 [2007-11-13] - Have the lbs-util tool check the version number when reading a