Experimental IRC log happs-2008-03-12

Available formats: content-negotiated html turtle (see SIOC for the vocabulary)

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These logs are provided as an experiment in indexing discussions using IRCHub.py, Irc2RDF.hs, and SIOC.

09:53:24<mae>does anyone feel like the happs home page is a bit lacking ; )
09:58:37<tomdavies>hi -- how does HAppS handle concurrent modification of state?
10:02:46<Lemmih>By sequencing the updates.
10:15:08<tomdavies>so if two threads are updating disjoint parts of the state at the same time, how much of the process is concurrent -- i.e. is the sequencing mechanism like prevayler where the entire transaction is single threaded, or like STM where the commit is single threaded, but the rest of the transaction isn't...
10:32:17<Lemmih>tomdavies: Like prevayler.
10:32:58<Lemmih>tomdavies: Note that updates to different components are performed in parallel.
16:03:25<Lemmih>ACTION is testing the multimaster patch for HAppS.
16:12:47<Saizan_>Lemmih: using hspread?
16:12:58<Lemmih>Yep.
16:13:10<Lemmih>It works really well.
16:14:52<Saizan>nice :) you're the first real user
16:15:38<Lemmih>The new multimaster code is 3.4 times smaller.
16:18:28<Lemmih>I look forward to work on partitioning.
16:20:11<Saizan>is that different from sharding?
16:22:50<Lemmih>Nope, same thing.
16:24:38<Saizan>is it at the Component level? or sub?
16:25:18<Lemmih>Each component is distributed over all available machines.
16:25:21<Lemmih>BBL.
19:23:06<fxr>.names

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