Commit Graph

1489 Commits

Author SHA1 Message Date
Harshavardhana
928f5b0564
fix: Quit when the context is canceled in madmin (#9264) 2020-04-06 17:50:14 -07:00
Harshavardhana
43a3778b45
fix: support object-remaining-retention-days policy condition (#9259)
This PR also tries to simplify the approach taken in
object-locking implementation by preferential treatment
given towards full validation.

This in-turn has fixed couple of bugs related to
how policy should have been honored when ByPassGovernance
is provided.

Simplifies code a bit, but also duplicates code intentionally
for clarity due to complex nature of object locking
implementation.
2020-04-06 13:44:16 -07:00
Anis Elleuch
9902c9baaa
sql: Add support of escape quote in CSV (#9231)
This commit modifies csv parser, a fork of golang csv
parser to support a custom quote escape character.

The quote escape character is used to escape the quote
character when a csv field contains a quote character
as part of data.
2020-04-01 15:39:34 -07:00
Harshavardhana
7de29e6e6b
Add rotating token support for admin API (#9244)
Use the *credentials.Credentials implementation method *Get*

```
func (c *Credentials) Get() (Value, error) {
```

which also handles auto-refresh, this allows for chaining
of various implementations together if necessary or simply
initialize with credentials.NewStaticV4(access, secret, token)

Co-authored-by: Klaus Post <klauspost@gmail.com>
2020-04-01 13:34:20 -07:00
Harshavardhana
d8af244708
Add numeric/date policy conditions (#9233)
add new policy conditions

- NumericEquals
- NumericNotEquals
- NumericLessThan
- NumericLessThanEquals
- NumericGreaterThan
- NumericGreaterThanEquals
- DateEquals
- DateNotEquals
- DateLessThan
- DateLessThanEquals
- DateGreaterThan
- DateGreaterThanEquals
2020-04-01 00:04:25 -07:00
Sidhartha Mani
c8243706b4
Add Parallel NetOBD tests to saturate all nodes at once (#9241) 2020-03-31 17:08:28 -07:00
Harshavardhana
30707659b5
[feature] allow for an odd number of erasure packs (#9221)
Too many deployments come up with an odd number
of hosts or drives, to facilitate even distribution
among those setups allow for odd and prime numbers
based packs.
2020-03-31 09:32:16 -07:00
Harshavardhana
6f992134a2
fix: startup load time by reusing storageDisks (#9210) 2020-03-27 14:48:30 -07:00
Sidhartha Mani
0c80bf45d0
Implement oboard diagnostics admin API (#9024)
- Implement a graph algorithm to test network bandwidth from every 
  node to every other node
- Saturate any network bandwidth adaptively, accounting for slow 
  and fast network capacity
- Implement parallel drive OBD tests
- Implement a paging mechanism for OBD test to provide periodic updates to client
- Implement Sys, Process, Host, Mem OBD Infos
2020-03-26 21:07:39 -07:00
Anis Elleuch
b207520d98
Fix lifecycle GET: AWS SDK complaints on empty config (#9201) 2020-03-25 21:06:03 -07:00
Praveen raj Mani
e7a0be5bd3
fix: throttling of events during their replay (#9188) 2020-03-23 12:34:39 -07:00
stefan-work
f001e99fcd
create the final file with mode 0666 for multipart-uploads (#9173)
NAS gateway creates non-multipart-uploads with mode 0666.
But multipart-uploads are created with a differing mode of 0644.

Both modes should be equal! Else it leads to files with different
permissions based on its file-size. This patch solves that by
using 0666 for both cases.
2020-03-20 15:32:15 -07:00
Harshavardhana
b4bfdc92cc fix: admin console logger changes to log.Info 2020-03-20 15:14:14 -07:00
Harshavardhana
ae654831aa
Add madmin package context support (#9172)
This is to improve responsiveness for all
admin API operations and allowing callers
to cancel any on-going admin operations,
if they happen to be waiting too long.
2020-03-20 15:00:44 -07:00
Stephen N
1ffa983a9d
added support for SASL/SCRAM on Kafka bucket notifications. (#9168)
fixes #9167
2020-03-20 11:10:27 -07:00
Klaus Post
8d98662633
re-implement data usage crawler to be more efficient (#9075)
Implementation overview: 

https://gist.github.com/klauspost/1801c858d5e0df391114436fdad6987b
2020-03-18 16:19:29 -07:00
Anis Elleuch
496f4a7dc7
Add service account type in IAM (#9029) 2020-03-17 10:36:13 -07:00
Anis Elleuch
35ecc04223
Support configurable quote character parameter in Select (#8955) 2020-03-13 22:09:34 -07:00
Kody A Kantor
06e30b5aa1
Skip building directio on platforms that don't support Direct IO (#9059) 2020-03-12 18:57:41 -07:00
Harshavardhana
603cf2a8bb
fix: broken gzip handling with Select API (#9128)
This PR fixes a regression introduced in a1c7c9ea73
2020-03-12 15:34:11 -07:00
Anis Elleuch
fdf65aa9b9
heal: Add info about the next background healing round (#9122)
- avoid setting last heal activity when starting self-healing

This can be confusing to users thinking that the self healing
cycle was already performed.

- add info about the next background healing round
2020-03-11 23:00:31 -07:00
Aditya Manthramurthy
cec8cdb35e
S3Select: Handle array selection in from clause (#9076) 2020-03-10 22:34:58 -07:00
kannappanr
33edb072a3
Add TopLocksAdminAction to diagsnostics canned policy (#9104) 2020-03-08 18:32:39 -07:00
ebozduman
a1c7c9ea73
Matches s3 invalid compression format error for 'mc sql' (#9067) 2020-03-05 19:34:04 -08:00
kannappanr
2f2c7d91a8
Add new extended list of JWT keys from OpenID group (#9087)
https://www.iana.org/assignments/jwt/jwt.xhtml#claims
2020-03-05 05:05:36 -08:00
Klaus Post
f1b2462193
Add goroutine profiles (#9078)
Allow downloading goroutine dump to help detect leaks
or overuse of goroutines.

Extensions are now type dependent.

Change `profiling` -> `profile` prefix, since that is what they are 
not the abstract concept.
2020-03-04 06:58:12 -08:00
Hamid
5b8975bf4b
Simplify redis access event format to faciliate parsing (#9046) 2020-02-26 09:23:32 -08:00
Kody A Kantor
deb3911f5e
cpu package fails to build on illumos (#9036) 2020-02-25 10:58:18 -08:00
Harshavardhana
23a8411732
Add a generic Walk()'er to list a bucket, optinally prefix (#9026)
This generic Walk() is used by likes of Lifecyle, or
KMS to rotate keys or any other functionality which
relies on this functionality.
2020-02-25 21:22:28 +05:30
Harshavardhana
ab7d3cd508
fix: Speed up multi-object delete by taking bulk locks (#8974)
Change distributed locking to allow taking bulk locks
across objects, reduces usually 1000 calls to 1.

Also allows for situations where multiple clients sends
delete requests to objects with following names

```
{1,2,3,4,5}
```

```
{5,4,3,2,1}
```

will block and ensure that we do not fail the request
on each other.
2020-02-21 11:29:57 +05:30
poornas
02a59a04d1
Fix error messages returned by (Put)GetObjectLegalHold (#9013)
fiixing some minor discrepancies between aws s3 responses
vs minio server
2020-02-19 08:15:48 +05:30
Harshavardhana
16a6e68d7b
fix: indicate PutBucketEncryption as a valid policy action (#9009) 2020-02-18 10:32:53 -08:00
Praveen raj Mani
1b427ddb69
Support for Kafka version in the config (#9001)
Add a field for the Kafka version in the config. The user can explicitly 
set the version of the Kafka cluster.

Fixes #8768
2020-02-17 07:56:33 +05:30
Krishnan Parthasarathi
9f298d2311
Omit empty algorithm tags in bucket encryption XML (#8987)
- Bucket encryption config returned by MinIO would always have the xml namespace
set
- Make unit tests in pkg/bucket/encryption more robust
2020-02-13 22:12:42 -08:00
Klaus Post
e4020fb41f
SIMDJSON S3 select input (#8401) 2020-02-13 14:03:52 -08:00
Nitish Tiwari
64ec17b463
Fix Legal Hold request parsing (#8981)
AWS S3 doesn't enforce the URL in XMLNS, accordingly, removing the
URL in XMLNS for ObjectLegalHold.

This was found while testing https://github.com/minio/minio-go/pull/1226
2020-02-13 01:18:29 -08:00
Nitish Tiwari
7e819d00ea
Fix Error Code for ObjectTagging Parsing (#8971)
Also add Mint tests
2020-02-11 17:42:28 -08:00
Nitish Tiwari
33767266e7
Fix Tagging XML Unmarshalling (#8977)
AWS S3 doesn't strictly enforce the presence of URL in tagging XML.
This PR updates MinIO to behave similarly.

Fixes #8976
2020-02-11 14:35:33 -08:00
Anis Elleuch
de924605a1
Import CSV parser library (#8927)
The CSV library code is imported from Go 1.13.6
2020-02-07 16:25:36 +05:30
Nitish Tiwari
e5951e30d0
Add support for Object Tagging in LifeCycle configuration (#8880)
Fixes #8870

Co-Authored-By: Krishnan Parthasarathi <krisis@users.noreply.github.com>
2020-02-06 13:20:10 +05:30
Andreas Auernhammer
086fbb745e
fix and improve KMS server info (#8944)
This commit fixes typos in the displayed server info
w.r.t. the KMS and removes the update status.

For more information about why the update status
is removed see: PR #8943
2020-02-06 06:18:34 +05:30
Andreas Auernhammer
4f37c8ccf2
refine the KMS admin API (#8943)
This commit removes the `Update` functionality
from the admin API. While this is technically
a breaking change I think this will not cause
any harm because:
 - The KMS admin API is not complete, yet.
   At the moment only the status can be fetched.
 - The `mc` integration hasn't been merged yet.
   So no `mc` client could have used this API
   in the past.

The `Update`/`Rewrap` status is not useful anymore.
It provided a way to migrate from one master key version
to another. However, KES does not support the concept of
key versions. Instead, key migration should be implemented
as migration from one master key to another.

Basically, the `Update` functionality has been implemented just
for Vault.
2020-02-05 22:47:35 +05:30
Krishnan Parthasarathi
026265f8f7
Add support for bucket encryption feature (#8890)
- pkg/bucket/encryption provides support for handling bucket 
  encryption configuration
- changes under cmd/ provide support for AES256 algorithm only

Co-Authored-By: Poorna  <poornas@users.noreply.github.com>
Co-authored-by: Harshavardhana <harsha@minio.io>
2020-02-05 15:12:34 +05:30
Anis Elleuch
52bdbcd046
Add new admin API to return Accounting Usage (#8689) 2020-02-04 18:20:39 -08:00
poornas
301c50b721
Add canned diagnostics policy for admin users (#8937) 2020-02-04 17:58:38 -08:00
Anis Elleuch
7432b5c9b2
Use user CAs in checkEndpoint() call (#8911)
The server info handler makes a http connection to other
nodes to check if they are up but does not load the custom
CAs in ~/.minio/certs/CAs.

This commit fix it.

Co-authored-by: Harshavardhana <harsha@minio.io>
2020-02-02 07:15:29 +05:30
poornas
881e983ed9
Fix Retention, ObjectLock, LegalHold struct namespaces correctly. (#8909)
Reverts #8903 to allow structs to be unmarshalled 
even if the namespace is missing.
2020-01-30 09:58:05 +05:30
Ashish Kumar Sinha
5bd0e95eef
Set default namespace for necessary structs (#8903) 2020-01-29 10:19:38 +05:30
Harshavardhana
0cbebf0f57 Rename pkg/{tagging,lifecycle} to pkg/bucket sub-directory (#8892)
Rename to allow for more such features to come in a more
proper hierarchical manner.
2020-01-27 14:12:34 -08:00
poornas
2232e095d5 Make admin permissions more granular for admin handlers. (#8888) 2020-01-26 20:47:52 -06:00
Klaus Post
c7178d2066 Profiling: Add base, fix memory profiling (#8850)
For 'snapshot' type profiles, record a 'before' profile that can be used 
as `go tool pprof -base=before ...` to compare before and after.

"Before" profiles are included in the zipped package.

[`runtime.MemProfileRate`](https://golang.org/pkg/runtime/#pkg-variables) 
should not be updated while the application is running, so we set it at startup.

Co-authored-by: Harshavardhana <harsha@minio.io>
2020-01-21 15:49:25 -08:00
Harshavardhana
e2b3c083aa
fix: close and drain the response body always (#8847) 2020-01-21 02:46:58 -08:00
Nitish Tiwari
61c17c8933 Add ObjectTagging Support (#8754)
This PR adds support for AWS S3 ObjectTagging API as explained here
https://docs.aws.amazon.com/AmazonS3/latest/dev/object-tagging.html
2020-01-20 08:45:59 -08:00
poornas
60e60f68dd Add support for object locking with legal hold. (#8634) 2020-01-16 15:41:56 -08:00
Harshavardhana
5aa5dcdc6d
lock: improve locker initialization at init (#8776)
Use reference format to initialize lockers
during startup, also handle `nil` for NetLocker
in dsync and remove *errorLocker* implementation

Add further tuning parameters such as

 - DialTimeout is now 15 seconds from 30 seconds
 - KeepAliveTimeout is not 20 seconds, 5 seconds
   more than default 15 seconds
 - ResponseHeaderTimeout to 10 seconds
 - ExpectContinueTimeout is reduced to 3 seconds
 - DualStack is enabled by default remove setting
   it to `true`
 - Reduce IdleConnTimeout to 30 seconds from
   1 minute to avoid idleConn build up

Fixes #8773
2020-01-10 02:35:06 -08:00
Harshavardhana
0a70bc24ac
Disallow only policy statements which are exactly same (#8785) 2020-01-09 19:29:57 -08:00
Praveen raj Mani
4cd1bbb50a This PR fixes two things (#8772)
- Stop spawning store replay routines when testing the notification targets
- Properly honor the target.Close() to clean the resources used

Fixes #8707

Co-authored-by: Harshavardhana <harsha@minio.io>
2020-01-09 19:45:44 +05:30
Harshavardhana
c2cde6beb5
policy: Allow duplicate statements with different effects (#8775)
This allows "Allow" and "Deny" conflicting statements,
where we evaluate to implicit "Deny".
2020-01-08 23:00:54 -08:00
Harshavardhana
abc1c1070a Add custom policy claim name (#8764)
In certain organizations policy claim names
can be not just 'policy' but also things like
'roles', the value of this field might also
be *string* or *[]string* support this as well

In this PR we are still not supporting multiple
policies per STS account which will require a
more comprehensive change.
2020-01-08 17:21:58 -08:00
Harshavardhana
60813bef29
Allow proper setCount SLAs across zones (#8752)
Fixes scenario where zones are appropriately
handled, along with supporting overriding set
count. The new fix also ensures that we handle
the various setup types properly.

Update documentation to properly indicate the
behavior.

Fixes #8750

Co-authored-by: Nitish Tiwari <nitish@minio.io>
2020-01-07 09:13:44 -08:00
Harshavardhana
933c60bc3a Add crypto context errors (#8740)
Currently when connections to vault fail, client
perpetually retries this leads to assumptions that
the server has issues and masks the problem.

Re-purpose *crypto.Error* type to send appropriate
errors back to the client.
2020-01-06 16:15:22 -08:00
Harshavardhana
6695fd6a61
Add more context aware error for policy parsing errors (#8726)
In existing functionality we simply return a generic
error such as "MalformedPolicy" which indicates just
a generic string "invalid resource" which is not very
meaningful when there might be multiple types of errors
during policy parsing. This PR ensures that we send
these errors back to client to indicate the actual
error, brings in two concrete types such as

 - iampolicy.Error
 - policy.Error

Refer #8202
2020-01-03 11:28:52 -08:00
Harshavardhana
0b7bd024fb Fix dependencies graph for minio source compilation (#8717)
We had messy cyclical dependency problem with `mc`
due to dependencies in pkg/console, moved the pkg/console
to minio for more control and also to avoid any further
cyclical dependencies of `mc` clobbering up the
dependencies on server.

Fixes #8659
2019-12-31 09:36:13 +05:30
Haines Chan
b2044dd22f Fix typo in comments (#8704) 2019-12-27 15:51:32 +05:30
kannappanr
cd59a945d8
Fix: Policy action name for Get/Put BucketLifeCycle (#8698)
S3:GetBucketLifeCycle should be changed to S3:GetLifeCycleConfiguration
S3:PutBucketLifeCycle should be changed to S3:PutLifeCycleConfiguration
2019-12-25 22:04:46 -08:00
Bruce Wang
c476b27a65 Comment typo "index max" to "index map" (#8700) 2019-12-24 21:57:43 -08:00
Harshavardhana
586614c73f fix: temp credentials shouldn't allow policy/group changes (#8675)
This PR fixes the issue where we might allow policy changes
for temporary credentials out of band, this situation allows
privilege escalation for those temporary credentials. We
should disallow any external actions on temporary creds
as a practice and we should clearly differentiate which
are static and which are temporary credentials.

Refer #8667
2019-12-19 14:21:21 -08:00
Harshavardhana
471a3a650a
fix: Don't allow to set unconfigured notification ARNs (#8643)
Fixes #8642
2019-12-13 12:36:45 -08:00
Ashish Kumar Sinha
abc266caa1 Add bucket and object count along with total object size (#8639) 2019-12-12 09:58:59 -08:00
Harshavardhana
c364f0af6c Start using custom HTTP transport for webhook endpoints (#8630)
Use a more performant http transport for webhook
endpoints with proper connection pooling, appropriate
timeouts etc.
2019-12-12 06:53:50 -08:00
Anis Elleuch
555969ee42 Add data usage collect with its new admin API (#8553)
Admin data usage info API returns the following

(Only FS & XL, for now)

- Number of buckets
- Number of objects
- The total size of objects
- Objects histogram
- Bucket sizes
2019-12-12 06:02:37 -08:00
Ashish Kumar Sinha
e2c5d29017 Bucket,Object count & Usage removed if set to default (#8638) 2019-12-11 21:56:47 -08:00
kannappanr
d266b3a066
Admin Info: Modify Uptime to return seconds (#8635) 2019-12-11 17:56:02 -08:00
Ashish Kumar Sinha
24fb1bf258 New Admin Info (#8497) 2019-12-11 14:27:03 -08:00
Klaus Post
bf3a97d3aa S3 Select: Concurrent LINES delimited json parsing (#8610)
The speedup is ~5x on a 6 core CPU
2019-12-09 06:55:31 -08:00
Harshavardhana
476111968a Update help messages with new wording (#8616)
Final update to all messages across sub-systems
after final review, the only change here is that
NATS now has TLS and TLSSkipVerify to be consistent
for all other notification targets.
2019-12-06 13:53:51 -08:00
Klaus Post
f1e2e1cc9e S3 Select: Mismatched types don't match (#8608)
When comparing for equality, if types cannot be matched, they don't match.
2019-12-06 07:24:41 -08:00
Aleksandr Petruhin
d2dc964cb5 Support TLS auth for Kafka notification target (#8609) 2019-12-05 15:31:46 -08:00
Harshavardhana
d8e3de0cae Ensure comment is always a valid key (#8604)
Also fix LDAP leaky connection
2019-12-05 18:17:42 +05:30
Harshavardhana
c9940d8c3f Final changes to config sub-system (#8600)
- Introduces changes such as certain types of
  errors that can be ignored or which need to 
  go into safe mode.
- Update help text as per the review
2019-12-04 15:32:37 -08:00
Harshavardhana
794eb54da8 Export command prints turned-off sub-sys as comments (#8594)
This PR also tries to

- Preserve the order of keys printed in export command
- Fix cache to be enabled with _STATE env to keep
  backward compatibility
2019-12-03 10:50:20 -08:00
Harshavardhana
5d3d57c12a
Start using error wrapping with fmt.Errorf (#8588)
Use fatih/errwrap to fix all the code to use
error wrapping with fmt.Errorf()
2019-12-02 09:28:01 -08:00
Harshavardhana
b21835f195 Honor DurationSeconds properly for WebIdentity (#8581)
Also cleanup code to add various constants for
verbatim strings across the code base.

Fixes #8482
2019-11-29 18:57:54 +05:30
Klaus Post
87443af49e Cache Windows mount point info (#8572)
It seems like every upload creates a new StorageInfo object.

This makes it very sensitive to slow code paths.

A particular slow function is `IsLikelyMountPoint` on Windows since `windows.GetVolumePathName` is slow.

We cache the result of this operation.

Before:

```
Operation: PUT - Concurrency: 12
* Average: 70.46 MB/s, 70.46 obj/s, 70.46 ops ended/s (59.58s)

Aggregated, split into 59 x 1s time segments:
* Fastest: 77.67 MB/s, 77.67 obj/s, 79.00 ops ended/s (1s)
* 50% Median: 70.84 MB/s, 70.84 obj/s, 70.00 ops ended/s (1s)
* Slowest: 61.51 MB/s, 61.51 obj/s, 61.00 ops ended/s (1s)
```

After:
```
Operation: PUT - Concurrency: 12
* Average: 166.80 MB/s, 166.80 obj/s, 166.74 ops ended/s (59.8s)

Aggregated, split into 59 x 1s time segments:
* Fastest: 183.83 MB/s, 183.83 obj/s, 186.00 ops ended/s (1s)
* 50% Median: 167.47 MB/s, 167.47 obj/s, 166.00 ops ended/s (1s)
* Slowest: 139.30 MB/s, 139.30 obj/s, 141.00 ops ended/s (1s)
```
2019-11-27 20:10:13 +05:30
Harshavardhana
5d65428b29
Handle localhost distributed setups properly (#8577)
Fixes an issue reported by @klauspost and @vadmeste

This PR also allows users to expand their clusters
from single node XL deployment to distributed mode.
2019-11-26 11:42:10 -08:00
Harshavardhana
720442b1a2
Add lock expiry handler to expire state locks (#8562) 2019-11-25 16:39:43 -08:00
Harshavardhana
e542084c37
Add etcd path prefix for all IAM assets (#8569)
Currently, we use the top-level prefix "config/"
for all our IAM assets, instead of to provide
tenant-level separation bring 'path_prefix'
to namespace the access properly.

Fixes #8567
2019-11-25 16:33:34 -08:00
Harshavardhana
4e9de58675 Avoid pointer based copy, instead use Clone() (#8547)
This PR adds functional test to test expanded
cluster syntax.
2019-11-21 17:54:51 +05:30
poornas
a9b87c0a16 Fix typo in event name (#8545) 2019-11-20 16:35:01 -08:00
Harshavardhana
5ac4b517c9
Order all keys in config (#8541)
New changes

- return default values when sub-sys is
  not configured.
- state is hidden parameter now
- remove worm mode to be saved in config
2019-11-20 15:10:24 -08:00
poornas
ca96560d56 Add object retention at the per object (#8528)
level - this PR builds on #8120 which
added PutBucketObjectLockConfiguration and
GetBucketObjectLockConfiguration APIS

This PR implements PutObjectRetention,
GetObjectRetention API and enhances
PUT and GET API operations to display
governance metadata if permissions allow.
2019-11-20 13:18:09 -08:00
Harshavardhana
347b29d059 Implement bucket expansion (#8509) 2019-11-19 17:42:27 -08:00
Harshavardhana
7cdb67680e
Add help with order of keys (#8535) 2019-11-19 13:48:13 -08:00
poornas
929951fd49 Add support for multiple admins (#8487)
Also define IAM policies for administering
MinIO server
2019-11-19 02:03:18 -08:00
Harshavardhana
13a3d17321
Do not add comments after migration (#8530)
Also filter out empty comments from being
printed.
2019-11-16 14:57:36 -08:00
svistoi
c9be601988 NATS TLS specify CA and client TLS authentication (#8389)
- added ability to specify CA for self-signed certificates
- added option to authenticate using client certificates
- added unit tests for nats connections
2019-11-15 09:13:23 -08:00
Harshavardhana
32c200fe12 Fix console logger crash in gateway mode (#8525)
This PR also fixes config migration only
for credentials and region which are valid
and set.

Also fix implicit `state="on"` behavior
2019-11-14 14:19:57 -08:00
Praveen raj Mani
e3273bc5bf Fix runtime panic in BackendDisks.Merge() (#8524) 2019-11-14 10:17:41 -08:00
Harshavardhana
26a866a202
Fix review comments and new changes in config (#8515)
- Migrate and save only settings which are enabled
- Rename logger_http to logger_webhook and
  logger_http_audit to audit_webhook
- No more pretty printing comments, comment
  is a key=value pair now.
- Avoid quotes on values which do not have space in them
- `state="on"` is implicit for all SetConfigKV unless
  specified explicitly as `state="off"`
- Disabled IAM users should be disabled always
2019-11-13 17:38:05 -08:00
Harshavardhana
e9b2bf00ad Support MinIO to be deployed on more than 32 nodes (#8492)
This PR implements locking from a global entity into
a more localized set level entity, allowing for locks
to be held only on the resources which are writing
to a collection of disks rather than a global level.

In this process this PR also removes the top-level
limit of 32 nodes to an unlimited number of nodes. This
is a precursor change before bring in bucket expansion.
2019-11-13 12:17:45 -08:00