This PR adds disk based edge caching support for minio server.
Cache settings can be configured in config.json to take list of disk drives,
cache expiry in days and file patterns to exclude from cache or via environment
variables MINIO_CACHE_DRIVES, MINIO_CACHE_EXCLUDE and MINIO_CACHE_EXPIRY
Design assumes that Atime support is enabled and the list of cache drives is
fixed.
- Objects are cached on both GET and PUT/POST operations.
- Expiry is used as hint to evict older entries from cache, or if 80% of cache
capacity is filled.
- When object storage backend is down, GET, LIST and HEAD operations fetch
object seamlessly from cache.
Current Limitations
- Bucket policies are not cached, so anonymous operations are not supported in
offline mode.
- Objects are distributed using deterministic hashing among list of cache
drives specified.If one or more drives go offline, or cache drive
configuration is altered - performance could degrade to linear lookup.
Fixes#4026
With following changes
- Add SSE and refactor encryption API (#942) <Andreas Auernhammer>
- add copyObject test changing metadata and preserving etag (#944) <Harshavardhana>
- Add SSE-C tests for multipart, copy, get range operations (#941) <Harshavardhana>
- Removing conditional check for notificationInfoCh in api-notication (#940) <Matthew Magaldi>
- Honor prefix parameter in ListBucketPolicies API (#929) <kannappanr>
- test for empty objects uploaded with SSE-C headers (#927) <kannappanr>
- Encryption headers should also be set during initMultipart (#930) <Harshavardhana>
- Add support for Content-Language metadata header (#928) <kannappanr>
- Fix check for duplicate notification configuration entries (#917) <kannappanr>
- allow OS to cleanup sockets in TIME_WAIT (#925) <Harshavardhana>
- Sign V2: Fix signature calculation in virtual host style (#921) <A. Elleuch>
- bucket policy: Support json string in Principal field (#919) <A. Elleuch>
- Fix copyobject failure for empty files (#918) <kannappanr>
- Add new constructor NewWithOptions to SDK (#915) <poornas>
- Support redirect headers to sign again with new Host header. (#829) <Harshavardhana>
- Fail in PutObject if invalid user metadata is passed <Harshavadhana>
- PutObjectOptions Header: Don't include invalid header <Isaac Hess>
- increase max retry count to 10 (#913) <poornas>
- Add new regions for Paris and China west. (#905) <Harshavardhana>
- fix s3signer to use req.Host header (#899) <Bartłomiej Nogaś>
Refactor such that metadata and etag are
combined to a single argument `srcInfo`.
This is a precursor change for #5544 making
it easier for us to provide encryption/decryption
functions.
This PR allows 'minio update' to not only shows update banner
but also allows for in-place upgrades.
Updates are done safely by validating the downloaded
sha256 of the binary.
Fixes#4781
- Adds a metadata argument to the CopyObjectPart API to facilitate
implementing encryption for copying APIs too.
- Update vendored minio-go - this version implements the
CopyObjectPart client API for use with the S3 gateway.
Fixes#4885
This change introduces following simplified steps to follow
during config migration.
```
// Steps to move from version N to version N+1
// 1. Add new struct serverConfigVN+1 in config-versions.go
// 2. Set configCurrentVersion to "N+1"
// 3. Set serverConfigCurrent to serverConfigVN+1
// 4. Add new migration function (ex. func migrateVNToVN+1()) in config-migrate.go
// 5. Call migrateVNToVN+1() from migrateConfig() in config-migrate.go
// 6. Make changes in config-current_test.go for any test change
```
This change brings public data-types such that
we can ask projects to implement gateway projects
externally than maintaining in our repo.
All publicly exported structs are maintained in object-api-datatypes.go
completePart --> CompletePart
uploadMetadata --> MultipartInfo
All other exported errors are at object-api-errors.go
Previously ID/ETag from backend service is used as is which causes
failure on s3cmd like tools where those tools use ETag as checksum to
validate data. This is fixed by prepending "-1".
Refer minio/mint#193minio/mint#201
Verify() was being called by caller after the data
has been successfully read after io.EOF. This disconnection
opens a race under concurrent access to such an object.
Verification is not necessary outside of Read() call,
we can simply just do checksum verification right inside
Read() call at io.EOF.
This approach simplifies the usage.
Harshavardhana