Commit graph

24 commits

Author SHA1 Message Date
Scott Lystig Fritchie
1bc9033076 Yay, all tests pass! 2015-12-07 22:15:23 +09:00
Scott Lystig Fritchie
38e63e8181 Add & remove, mostly working (2 eunit tests broken) 2015-12-07 21:52:27 +09:00
UENISHI Kota
f7358424e4 Trim command and GC prototype implementation
* maybe_gc/2 is triggered at machi_file_proxy, when chunk is deleted
  and the file is larger than `max_file_size`
* A file is deleted if all chunks except 1024 bytes header are trimmed
* If a file is going to be deleted, file_proxy notifies metadata_mgr
  to remember the filename persistently, whose filename is
  `known_files_<FluName>`
* Such trimmed filenames are stored in a machi_plist file per flu
* machi_file_proxy could not be started if the filename is in the
  manager's list. Consequently, any write, read and trim operations
  cannot happen against deleted file.
* After the file was trimmed, any read request to the file returns
  `{error, trimmed}`
* Disclaimer: no tests written yet and machi_plist does not support
  any recovery from partial writes.
* Add some thoughts as comments for repairing trims.

* State diagram of every byte is as follows:

```
state\action| write/append   | read_chunk       | trim_chunk
------------+----------------+------------------+---------------
 unwritten  |  -> written    | fail (+repair)   | -> trimmed
 written    | noop or repair | return content   | -> trimmed
 trimmed    |  fail          | fail             | noop
```
2015-10-28 12:34:03 +09:00
UENISHI Kota
0f688d6279 Update read_chunk() PB protocol to return trimmed chunks 2015-10-22 23:11:43 +09:00
UENISHI Kota
3e975f53b8 Allow read_chunk() to return partial chunks
This is simply a change of read_chunk() protocol, where a response of
read_chunk() becomes list of written bytes along with checksum. All
related code including repair is changed as such. This is to pass all
tests and not actually supporting partial chunks.
2015-10-19 15:37:17 +09:00
Scott Lystig Fritchie
00ac0f4cd3 Reduce compiler warnings and verbose output that clutters eunit test output 2015-10-16 17:41:01 +09:00
UENISHI Kota
e113f6ffdd Reach the trim stub to CR client 2015-10-13 17:25:59 +09:00
UENISHI Kota
dfe953b7d8 Add surface of trim to scrub 2015-10-13 17:14:44 +09:00
Scott Lystig Fritchie
9b3cd9056a Un-TEST'ify testr_react_to_env() everywhere 2015-07-03 16:18:40 +09:00
Scott Lystig Fritchie
7542fe8225 WIP: all eunit tests are passing again, yay 2015-06-30 16:12:23 +09:00
Scott Lystig Fritchie
e9d50a2128 WIP: Reinstate one eunit test, fix type bugs 2015-06-30 15:51:03 +09:00
Scott Lystig Fritchie
d54c74f58a WIP: yank out io:format 2015-06-29 16:53:41 +09:00
Scott Lystig Fritchie
64817dd7e8 WIP: giant hairball 01 2015-06-29 16:10:43 +09:00
Scott Lystig Fritchie
1b0cf06f1c Fix type problem, oops 2015-06-24 14:06:17 +09:00
Scott Lystig Fritchie
73f71c406e WIP: list_files end-to-end! 2015-06-23 17:08:15 +09:00
Scott Lystig Fritchie
6722b3c0f1 WIP: checksum_list incomplete implementation.... 2015-06-23 16:53:06 +09:00
Scott Lystig Fritchie
6e77a4ea74 WIP: read_chunk end-to-end! 2015-06-23 16:24:08 +09:00
Scott Lystig Fritchie
44c22bf752 WIP: read_chunk #1 2015-06-23 15:34:48 +09:00
Scott Lystig Fritchie
a8782eed5a WIP: write_chunk #1 2015-06-23 15:13:13 +09:00
Scott Lystig Fritchie
cb06c53dc0 WIP: PB append_chunk end-to-end works! 2015-06-23 14:45:24 +09:00
Scott Lystig Fritchie
5ef499ec73 WIP: append_chunk #1 2015-06-23 14:08:10 +09:00
Scott Lystig Fritchie
bb8e725c26 WIP: 'auth' request placeholders 2015-06-22 18:16:15 +09:00
Scott Lystig Fritchie
db7f1476b9 WIP: 'echo' request works end-to-end, yay! 2015-06-22 18:04:17 +09:00
Scott Lystig Fritchie
3d05f543df WIP: new test case is failing, quick fix soon 2015-06-22 17:49:07 +09:00
Renamed from test/machi_pb_cr_client_test.erl (Browse further)