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author | 2015-03-03 21:49:41 -0400 | |
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committer | 2015-03-03 21:49:41 -0400 | |
commit | c00c962c67ae13ff00a12599b26ea6106b2bd207 (patch) | |
tree | 0ab2e8eadddbc9df4142e0a131a92852d0cac0a4 | |
parent | 048622219f48d2cc7c95556da0b5966ef30334ad (diff) |
item splitting
-rw-r--r-- | doc/design/iabackup.mdwn | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/doc/design/iabackup.mdwn b/doc/design/iabackup.mdwn index 56f7486f0..68940cb4f 100644 --- a/doc/design/iabackup.mdwn +++ b/doc/design/iabackup.mdwn @@ -21,7 +21,7 @@ them. 240 repositories.) * The IA is ~20 Petabytes large. Each shard would thus be around 8 - Terabytes. (However, Items sizes will vary a lot, so there's the + Terabytes. (Item sizes will vary a lot, so there's the potential to get a shard that's unusually small or large. This could be dealt with when assigning Items to the shards, to balance sizes out.) @@ -210,3 +210,9 @@ Clients will then download the new version of the Item. Items sometimes go dark; this could be reflected by deleting the item from the repository. It's up to the clients what they do with the content of such Items. + +## other potential gotchas + +If any single Item is very large (eg, 10 terabytes), there may not be +any clients that can handle it. This could be dealt with by splitting up +the item into smaller files. |