Commit Graph

10 Commits

Author SHA1 Message Date
Andreas Auernhammer
7e6b5bdbb7 remove ReadFileWithVerify from StorageAPI (#4947)
This change removes the ReadFileWithVerify function from the
StorageAPI. The ReadFile was basically a redirection to ReadFileWithVerify.
This change removes the redirection and moves the logic of
ReadFileWithVerify directly into ReadFile.
This removes a lot of unnecessary code in all StorageAPI implementations.

Fixes #4946

* review: fix doc and typos
2017-09-25 11:32:56 -07:00
Andreas Auernhammer
85fcee1919 erasure: simplify XL backend operations (#4649) (#4758)
This change provides new implementations of the XL backend operations:
 - create file
 - read   file
 - heal   file
Further this change adds table based tests for all three operations.

This affects also the bitrot algorithm integration. Algorithms are now
integrated in an idiomatic way (like crypto.Hash).
Fixes #4696
Fixes #4649
Fixes #4359
2017-08-14 18:08:42 -07:00
Aditya Manthramurthy
8975da4e84 Add new ReadFileWithVerify storage-layer API (#4349)
This is an enhancement to the XL/distributed-XL mode. FS mode is
unaffected.

The ReadFileWithVerify storage-layer call is similar to ReadFile with
the additional functionality of performing bit-rot checking. It
accepts additional parameters for a hashing algorithm to use and the
expected hex-encoded hash string.

This patch provides significant performance improvement because:

1. combines the step of reading the file (during
erasure-decoding/reconstruction) with bit-rot verification;

2. limits the number of file-reads; and

3. avoids transferring the file over the network for bit-rot
verification.

ReadFile API is implemented as ReadFileWithVerify with empty hashing
arguments.

Credits to AB and Harsha for the algorithmic improvement.

Fixes #4236.
2017-05-16 14:21:52 -07:00
Harshavardhana
6efee2072d objectLayer: Check for format.json in a wrapped disk. (#3311)
This is needed to validate if the `format.json` indeed exists
when a fresh node is brought online.

This wrapped implementation also connects to the remote node
by attempting a re-login. Subsequently after a successful
connect `format.json` is validated as well.

Fixes #3207
2016-11-23 15:48:10 -08:00
Anis Elleuch
a47ce7ab22 Add support of fallocate for FS and XL backends (#3032) 2016-10-29 12:44:44 -07:00
Krishnan Parthasarathi
7d50361ca9 Move housekeeping before object layer initialization (#3001)
In a distributed setup that the server should not perform any operation
on the storage layer after it is exported via RPC. e.g, cleaning up of
temporary directories under .minio.sys/tmp may interfere with ongoing
PUT objects being served by the distributed setup.
2016-10-19 19:59:48 -07:00
Harshavardhana
6494b77d41 server: Add more elaborate startup messages. (#2731)
These messages based on our prep stage during XL
and prints more informative message regarding
drive information.

This change also does a much needed refactoring.
2016-10-05 12:48:07 -07:00
Anis Elleuch
b89a1cd482 tests: Implemented more tests for fs-v1*.go (#2686) 2016-09-16 13:06:49 -07:00
Harshavardhana
43befab8ef Change distributed server wording. 2016-09-13 21:18:30 -07:00
Anis Elleuch
421cccb1d7 Add naughty disk to simulate disk errors (#2645) 2016-09-09 12:53:09 -07:00