Commit Graph

15 Commits

Author SHA1 Message Date
Harshavardhana bcc5b6e1ef xl: Rename getOrderedDisks as shuffleDisks appropriately. (#3796)
This PR is for readability cleanup

- getOrderedDisks as shuffleDisks
- getOrderedPartsMetadata as shufflePartsMetadata

Distribution is now a second argument instead being the
primary input argument for brevity.

Also change the usage of type casted int64(0), instead
rely on direct type reference as `var variable int64` everywhere.
2017-02-24 09:20:40 -08:00
Harshavardhana 1c699d8d3f fs: Re-implement object layer to remember the fd (#3509)
This patch re-writes FS backend to support shared backend sharing locks for safe concurrent access across multiple servers.
2017-01-16 17:05:00 -08:00
Harshavardhana b0cfceb211 event: Enhance event message struct to provide origin server. (#3557)
`principalId` i.e user identity is kept as AccessKey in
accordance with S3 spec.

Additionally responseElements{} are added starting with

`x-amz-request-id` is a hexadecimal of the event time itself in nanosecs.
`x-minio-origin-server` - points to the server generating the event.

Fixes #3556
2017-01-10 16:43:48 -08:00
Krishnan Parthasarathi 36fd317eb2 Clean up lock-instrumentation and improve comments (#3499)
- Add a lockStat type to group counters
- Remove unnecessary helper functions
- Fix stats computation on force unlock
- Removed unnecessary checks and cleaned up comments
2016-12-26 10:29:55 -08:00
Harshavardhana 4daa0d2cee lock: Moving locking to handler layer. (#3381)
This is implemented so that the issues like in the
following flow don't affect the behavior of operation.

```
GetObjectInfo()
.... --> Time window for mutation (no lock held)
.... --> Time window for mutation (no lock held)
GetObject()
```

This happens when two simultaneous uploads are made
to the same object the object has returned wrong
info to the client.

Another classic example is "CopyObject" API itself
which reads from a source object and copies to
destination object.

Fixes #3370
Fixes #2912
2016-12-10 16:15:12 -08:00
Harshavardhana d711ff454e logs: Do not log common successful errors. (#3340)
Errors like `BucketNotFound`, `BucketExists` shouldn't be logged.

Fixes #3229
2016-11-23 16:36:26 -08:00
Aditya Manthramurthy dd0698d14c Improve namespace lock API: (#3203)
- abstract out instrumentation information.
- use separate lockInstance type that encapsulates the nsMutex, volume,
  path and opsID as the frontend or top-level lock object.
2016-11-09 10:58:41 -08:00
Anis Elleuch 807cc3c28d Tracing locking errors for better debugging (#3140) 2016-10-31 10:17:14 -07:00
Harshavardhana fa8ea41cd9 lock/instrumentation: Cleanup and print in user friendly form. (#2807) 2016-10-11 00:50:27 -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
Harshavardhana 5885ffc8ae signature: Add legacy signature v2 support transparently. (#2811)
Add new tests as well.
2016-09-30 14:32:13 -07:00
Aditya Manthramurthy 8ea571c7f7 Remove MINIO_DEBUG environment variable (#2794)
Removes the unimplemented settings of MINIO_DEBUG=mem and makes
MINIO_DEBUG=lock the default behaviour.
2016-09-27 14:35:43 -07:00
Karthic Rao 1ce339abeb Fixing ineffssaign errors (#2608) 2016-09-13 21:18:30 -07:00
Harshavardhana 37cbcae6ba xl: Remove an unecessary lock with isBucketExist() (#2593)
Fixes #2566
2016-09-13 21:18:30 -07:00
Karthic Rao 07d232c7b4 instrumentation: instrumentation for locks. (#2584)
- Instrumentation for locks.
- Detailed test coverage.
- Adding RPC control handler to fetch lock instrumentation.
- RPC control handlers suite tests with a test RPC server.
2016-09-13 21:18:30 -07:00