Commit graph

770 commits

Author SHA1 Message Date
Scott Lystig Fritchie
8807f954ff WIP: Whole file repair is 95% complete, yay! 2015-05-12 21:45:40 +09:00
Scott Lystig Fritchie
f48720e4dc WIP: set up proxies for repair 2015-05-12 12:56:41 +09:00
Scott Lystig Fritchie
1c70a46b09 Add basic process & bookkeeping structure for repair proc
=INFO REPORT==== 11-May-2015::19:50:09 ===
    Chain tail a of [a] starting repair of [c]

    =INFO REPORT==== 11-May-2015::19:50:12 ===
    Chain tail a of [a]: repair finished in 2.438 seconds: todo_yo
2015-05-11 19:50:21 +09:00
Scott Lystig Fritchie
c82000dc30 Reduce spamminess slightly 2015-05-11 19:00:21 +09:00
Scott Lystig Fritchie
33bfbe109e Chain manager bug fixes & enhancment (more...)
* Set max length of a chain at -define(MAX_CHAIN_LENGTH, 64).

* Perturb tick sleep time of each manager

* If a chain manager L has zero members in its chain, and then its local
public projection store (authored by some remote author R) has a projection
that contains L, then adopt R's projection and start humming consensus.

* Handle "cross-talk" across projection stores, when chain membership
is changed administratively, e.g. chain was [a,b,c] then changed to merely
[a], but that change only happens on a.  Servers b & c continue to use
stale projections and scribble their projection suggestions to a, causing
it to flap.

What's really cool about the flapping handling is that it *works*.  I
wasn't thinking about this scenario when designing the flapping logic, but
it's really nifty that this extra scenario causes a to flap and then a's
inner projection remains stable, yay!

* Add complaints when "cross-talk" is observed.

* Fix flapping sleep time throttle.

* Fix bug in the machi_projection_store.erl's bookkeeping of the
max epoch number when flapping.
2015-05-11 18:41:45 +09:00
Scott Lystig Fritchie
5fe4c7406c Merge branch 'slf/chain-repair' 2015-05-08 21:41:25 +09:00
Scott Lystig Fritchie
2ef43bead3 WIP: tests for wedge state all working 2015-05-08 21:41:08 +09:00
Scott Lystig Fritchie
dc43a32945 WIP: tests for wedge state all working 2015-05-08 21:37:19 +09:00
Scott Lystig Fritchie
0dd9282789 WIP: fix other broken eunit tests, surrounding wedge state 2015-05-08 21:24:07 +09:00
Scott Lystig Fritchie
6f7818fca7 WIP: additional tests for wedge state 2015-05-08 19:50:47 +09:00
Scott Lystig Fritchie
316126fa59 WIP: additional tests for wedge state 2015-05-08 19:07:57 +09:00
Scott Lystig Fritchie
376c4a9ae1 WIP: failing test for append while wedged 2015-05-08 18:22:44 +09:00
Scott Lystig Fritchie
7906e6c235 WIP: basic wedge notifications now working 2015-05-08 18:17:41 +09:00
Scott Lystig Fritchie
50e8e0673f Fix LaTeX'isms in README 2015-05-08 17:19:54 +09:00
Scott Lystig Fritchie
ca854373f8 WIP: new test fails: check for not wedged 2015-05-08 17:07:03 +09:00
Scott Lystig Fritchie
d6d003618d WIP: add wedge_status() query to proxy client 2015-05-08 16:58:06 +09:00
Scott Lystig Fritchie
1dc759b908 WIP: add wedge_status() query to client 2015-05-08 16:53:10 +09:00
Scott Lystig Fritchie
762aef557f WIP: Set the stage for FLU wedging API 2015-05-08 15:36:53 +09:00
Scott Lystig Fritchie
ae1d038abe Change default value of chmgr's use_partition_simulator to false 2015-05-08 13:40:44 +09:00
Scott Lystig Fritchie
49d587039e Add CONTRIBUTING.md, update README.md 2015-05-07 21:03:13 +09:00
Scott Lystig Fritchie
75a077220d Add CONTRIBUTING.md, update README.md 2015-05-07 20:59:27 +09:00
Scott Lystig Fritchie
6143bb60e9 Merge branch 'slf/otp-refactoring-step4' 2015-05-07 18:52:33 +09:00
Scott Lystig Fritchie
238c8472cd WIP: timeout comments 2015-05-07 18:52:01 +09:00
Scott Lystig Fritchie
14fc37bd0d Add ability to start FLUs at application startup 2015-05-07 18:39:39 +09:00
Scott Lystig Fritchie
517941aaaa Finish chain manager restart & membership changing 2015-05-07 17:52:16 +09:00
Scott Lystig Fritchie
aeb2e4ef9e WIP: partial refactoring of chmgr 2nd start code, one test broken 2015-05-06 11:41:04 +09:00
Scott Lystig Fritchie
cf335122d1 Try to hyperlink (allthethings) 2015-05-05 19:33:26 +09:00
Scott Lystig Fritchie
93917ba46f Add PDF of draft 0.9 of high-level-chain-mgr.pdf 2015-05-05 19:27:57 +09:00
Scott Lystig Fritchie
ff4bafe051 Merge branch 'doc/machi-high-level-design-port' 2015-05-05 19:21:01 +09:00
Scott Lystig Fritchie
fdbe690965 Finished draft 0.9 of high-level-chain-mgr.tex 2015-05-05 19:20:12 +09:00
Scott Lystig Fritchie
a7bd8e43d3 Clean up machi_flu_psup_test.erl 2015-05-02 17:10:23 +09:00
Scott Lystig Fritchie
1675020150 WIP, tests pass again, includign the newest one 2015-05-02 00:33:49 +09:00
Scott Lystig Fritchie
65993dfcb6 WIP: tests pass, but not finished yet 2015-05-01 14:52:19 +09:00
Scott Lystig Fritchie
53f6a753f4 WIP: tests pass, but not finished yet 2015-05-01 14:51:42 +09:00
Scott Lystig Fritchie
7bafc1c28a WIP: stop for the night, we are broken 2015-04-30 23:16:08 +09:00
Scott Lystig Fritchie
99fd7e7fe1 Add test/machi_flu_psup_test.erl, small cleanups 2015-04-30 21:20:21 +09:00
Scott Lystig Fritchie
442e79e4f1 Add machi_flu_psup.erl to supervise all 3 FLU processes (see below)
Introduce machi_flu_psup:start_flu_package/4 as a way to start all
related FLU processes
    * The projection store
    * The chain manager
    * The FLU itself

... as well as linked processes.
http://www.snookles.com/scotttmp/flu-tree-20150430.png shows one FLU
running, "a".  The process registered "a" is the append server,
"some-prefix" for the sequencer & writer for the current <<"some-prefix">>
file, and a process each for 3 active TCP connections to that FLU.
2015-04-30 19:15:27 +09:00
Scott Lystig Fritchie
9249663ff6 TODO updates for machi_flu1.erl based on doc rewriting work 2015-04-30 15:15:43 +09:00
Scott Lystig Fritchie
509d33e481 Merge branch 'doc/machi-high-level-design-port' (work-in-progress) 2015-04-24 19:59:37 +09:00
Scott Lystig Fritchie
6773915793 WIP: name-game-sketch.org and file migration 2015-04-24 16:59:44 +09:00
Scott Lystig Fritchie
c0a7a8fb57 WIP: name-game-sketch.org and file migration 2015-04-24 16:34:16 +09:00
Scott Lystig Fritchie
8154c07b91 WIP: name-game-sketch.org 2015-04-23 22:32:41 +09:00
Scott Lystig Fritchie
1019c659d5 WIP: name-game-sketch.org 2015-04-23 22:26:34 +09:00
Scott Lystig Fritchie
1f82704ef8 WIP: name-game-sketch.org 2015-04-23 18:55:05 +09:00
Scott Lystig Fritchie
e2d486d347 Working on new name-game-sketch.org 2015-04-23 17:13:13 +09:00
Scott Lystig Fritchie
4c784613a1 Bring chain-self-management-sketch.org into sync with high-level-chain-mgr.tex 2015-04-23 12:56:14 +09:00
Scott Lystig Fritchie
9c58a635f1 Draft 0.5 is now complete, I think, hooray! 2015-04-22 23:06:46 +09:00
Scott Lystig Fritchie
fa89b03d21 WIP: remove lots of orphaned text, continue attacking TODO items 2015-04-22 22:52:55 +09:00
Scott Lystig Fritchie
f7fa2704ee WIP: finishing first draft of inner projection description 2015-04-22 22:50:00 +09:00
Scott Lystig Fritchie
86581ee41b Oops, forgot to add chain-self-management-sketch.Diagram1.eps 2015-04-22 21:40:09 +09:00