[WIP] Unify LevelDB usage to single instance #57

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kuenishi wants to merge 1 commit from unknown repository into master

Author	SHA1	Message	Date
UENISHI Kota	e882f774ef	Unify LevelDB usage to single instance * Perfile LevelDB instance usage are changed to use single instance per FLU server. * machi_csum_file reference is managed with machi_flu_filename_mgr as an aim to manage filenames with leveldb * Not only chunk checksums, but the list of trimmed files are also stored in LevelDB. * Remove 1024 bytes file header; instead put any metadata into LevelDB if needed. * LevelDB `db_ref()` lifecycle is same as that of `machi_metadata_mgr` * `machi_file_proxy` just uses it as it's passed at process startup * There are several optimization space still left as it is WIP	2016-02-09 13:36:25 +09:00

Author

SHA1

Message

Date

UENISHI Kota

e882f774ef

Unify LevelDB usage to single instance

* Perfile LevelDB instance usage are changed to use single instance
  per FLU server.
* machi_csum_file reference is managed with machi_flu_filename_mgr
  as an aim to manage filenames with leveldb
* Not only chunk checksums, but the list of trimmed files are also
  stored in LevelDB.
* Remove 1024 bytes file header; instead put any metadata into
  LevelDB if needed.
* LevelDB `db_ref()` lifecycle is same as that of `machi_metadata_mgr`
* `machi_file_proxy` just uses it as it's passed at process startup
* There are several optimization space still left as it is

WIP

2016-02-09 13:36:25 +09:00