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226 Commits

Author SHA1 Message Date
Praveen raj Mani
72802a5972
Use 'minio/pkg/sync/errgroup' and 'minio/pkg/workers' (#17069) 2023-04-25 22:57:40 -07:00
Harshavardhana
b1f3935c5b
allow ListObjects() when a prefix is an object (#17074) 2023-04-25 22:41:54 -07:00
Harshavardhana
6825bd7e75
fix: inlined objects don't need to honor long locks (#17039) 2023-04-17 12:16:37 -07:00
Harshavardhana
f3682b6149
allow writes to pools with inconsistent xl.meta (#17008) 2023-04-11 11:17:46 -07:00
Poorna
dc8fdcb9c9
fix: error checking in DeleteBucket (#16929) 2023-03-30 11:54:08 -07:00
Anis Eleuch
1346561b9d
return quorum error instead of insufficient storage error (#16874) 2023-03-22 16:22:37 -07:00
Minio Trusted
4bc52897b2 Update yaml files to latest version RELEASE.2023-03-22T06-36-24Z 2023-03-22 21:16:15 +00:00
Harshavardhana
12047702f5
fix: tweak the maintenance=true to satisfy baremetal first (#16864) 2023-03-21 08:48:38 -07:00
Poorna
d1e775313d
support decommissioning of tiered objects (#16751) 2023-03-16 07:48:05 -07:00
Klaus Post
628042e65e
tests: Protect globalLocalDrives against races (#16800) 2023-03-13 06:04:20 -07:00
Harshavardhana
b984bf8d1a
allow expiration of all versions during Listing() (#16757) 2023-03-09 15:15:30 -08:00
Poorna
fb6ab1cca2
fix: allow replication of 'null' delete markers (#16773) 2023-03-08 07:03:29 -08:00
ferhat elmas
714283fae2
cleanup ignored static analysis (#16767) 2023-03-06 08:56:10 -08:00
Klaus Post
d07089ceac
Fix scanner deadlock on lost global lock (#16726) 2023-02-28 21:34:45 -08:00
Klaus Post
9acf1024e4
Remove bloom filter (#16682) 
Removes the bloom filter since it has so limited usability, often gets saturated anyway and adds a bunch of complexity to the scanner.

Also removes a tiny bit of CPU by each write operation.
 2023-02-24 09:03:31 +05:30
Klaus Post
d0f4cc89a5
Re-add Veeam Listing workaround (#16593) 2023-02-10 10:48:39 -08:00
Klaus Post
03b94f907f
fix: deleted object names for directory objects (#16448) 2023-01-20 21:16:06 +05:30
Harshavardhana
b4ef5ff294
remove unnecessary code checking for supported features (#16423) 2023-01-17 19:37:47 +05:30
jiuker
c8e1154f1e
fix: reading from erasureDisks must be protected via read lock() (#16407) 2023-01-13 04:16:23 -08:00
Anis Elleuch
2146ed4033
xl: Quit early when EC config is incorrect (#16390) 
Co-authored-by: Anis Elleuch <anis@min.io>
 2023-01-09 23:07:45 -08:00
Harshavardhana
a15a2556c3
converge listBuckets() as a peer call (#16346) 2023-01-03 23:39:40 -08:00
Harshavardhana
f1bbb7fef5
vectorize cluster-wide calls such as bucket operations (#16313) 2023-01-03 08:16:39 -08:00
Harshavardhana
5b8fe2e89a
allow locks with object affinity to spread across pools (#16312) 2022-12-23 20:55:45 -08:00
Anis Elleuch
acc9c033ed
debug: Add X-Amz-Request-ID to lock/unlock calls (#16309) 2022-12-23 19:49:07 -08:00
Harshavardhana
b882310e2b
avoid locks for internal and invalid buckets in MakeBucket() (#16302) 2022-12-23 07:46:00 -08:00
Anis Elleuch
89db3fdb5d
Do not return an error when version disparity is detected (#16269) 2022-12-16 08:52:12 -08:00
Aditya Manthramurthy
a30cfdd88f
Bump up madmin-go to v2 (#16162) 2022-12-06 13:46:50 -08:00
Klaus Post
a713aee3d5
Run staticcheck on CI (#16170) 2022-12-05 11:18:50 -08:00
Harshavardhana
5a8df7efb3
re-implement StorageInfo to be a peer call (#16155) 2022-12-01 14:31:35 -08:00
Klaus Post
cc1d8f0057
Check for abandoned data when healing (#16122) 2022-11-28 10:20:55 -08:00
Klaus Post
f96fe9773c
fix: duplicated shared prefix with custom delimiter when listing (#16111) 2022-11-22 08:51:04 -08:00
Harshavardhana
6aea950d74
avoid partID lock validating uploadID exists prematurely (#16086) 2022-11-18 03:09:35 -08:00
Harshavardhana
6d76db9d6c
improve server startup error when pools are incorrect (#16056) 2022-11-11 19:40:45 -08:00
Harshavardhana
0d49b365ff
converge SNSD deployments into single code (#15988) 2022-11-01 16:41:01 -07:00
Harshavardhana
fd6f6fc8df
cleanup stale parent multipart directories (#15980) 2022-11-01 08:00:02 -07:00
Krishnan Parthasarathi
4523da6543
feat: introduce pool-level rebalance (#15483) 2022-10-25 12:36:57 -07:00
Harshavardhana
23b329b9df
remove gateway completely (#15929) 2022-10-24 17:44:15 -07:00
Anis Elleuch
ac85c2af76
lifecycle: refactor rules filtering and tagging support (#15914) 2022-10-21 10:46:53 -07:00
Harshavardhana
c68910005b
validate bucket before attempting batch replication (#15861) 2022-10-15 11:58:31 -07:00
Harshavardhana
928feb0889
remove unused debug param from evalActionFromLifecycle (#15813) 2022-10-07 10:24:12 -07:00
Harshavardhana
2a13cc28f2 feat: implement support batch replication (#15554) 2022-10-05 23:00:43 -07:00
Klaus Post
a9f1ad7924
Add extended checksum support (#15433) 2022-08-29 16:57:16 -07:00
Harshavardhana
e9055e9ef7
fix: walk() should cancel itself upon context cancellation (#15553) 
This PR fixes possible leaks that may emanate from not
listening on context cancelation or timeouts.

```
goroutine 60957610 [chan send, 16 minutes]:
github.com/minio/minio/cmd.(*erasureServerPools).Walk.func1.1.1(...)
        github.com/minio/minio/cmd/erasure-server-pool.go:1724 +0x368
github.com/minio/minio/cmd.listPathRaw({0x4a9a740, 0xc0666dffc0},...
        github.com/minio/minio/cmd/metacache-set.go:1022 +0xfc4
github.com/minio/minio/cmd.(*erasureServerPools).Walk.func1.1()
        github.com/minio/minio/cmd/erasure-server-pool.go:1764 +0x528
created by github.com/minio/minio/cmd.(*erasureServerPools).Walk.func1
        github.com/minio/minio/cmd/erasure-server-pool.go:1697 +0x1b7
```
 2022-08-18 17:49:08 -07:00
Harshavardhana
d350b666ff
feat: add idempotent delete marker support (#15521) 
The bottom line is delete markers are a nuisance,
most applications are not version aware and this
has simply complicated the version management.

AWS S3 gave an unnecessary complication overhead
for customers, they need to now manage these
markers by applying ILM settings and clean
them up on a regular basis.

To make matters worse all these delete markers
get replicated as well in a replicated setup,
requiring two ILM settings on each site.

This PR is an attempt to address this inferior
implementation by deviating MinIO towards an
idempotent delete marker implementation i.e
MinIO will never create any more than single
consecutive delete markers.

This significantly reduces operational overhead
by making versioning more useful for real data.

This is an S3 spec deviation for pragmatic reasons.
 2022-08-18 16:41:59 -07:00
Harshavardhana
bf38c0c0d1
fix: increase concurrency of DeleteObjects() to N/10th (#15546) 
instead of keeping the value 10 and static, make
the concurrency a function of incoming number of
objects being deleted.
 2022-08-18 09:33:56 -07:00
Poorna
21bf5b4db7
replication: heal proactively upon access (#15501) 
Queue failed/pending replication for healing during listing and GET/HEAD
API calls. This includes healing of existing objects that were never
replicated or those in the middle of a resync operation.

This PR also fixes a bug in ListObjectVersions where lifecycle filtering
should be done.
 2022-08-09 15:00:24 -07:00
ebozduman
b57e7321e7
Replaces 'disk'=>'drive' visible to end user (#15464) 2022-08-04 16:10:08 -07:00
Harshavardhana
a6e0ec4e6f
Add support converting non-inlined to inlined (#15444) 
This is a feature to allow for inode compaction on
large clusters that use a lot of small files spread
across a large heirarchy.
 2022-08-02 23:10:22 -07:00
Harshavardhana
cbd70d26b5
optimize speedtest for smaller setups (#15414) 
this has been observed in multiple environments
where the setups are small `speedtest` naturally
fails with default '10s' and the concurrency
of '32' is big for such clusters.

choose a smaller value i.e equal to number of
drives in such clusters and let 'autotune'
increase the concurrency instead.
 2022-07-27 14:41:59 -07:00
Poorna
426c902b87
site replication: fix healing of bucket deletes. (#15377) 
This PR changes the handling of bucket deletes for site 
replicated setups to hold on to deleted bucket state until 
it syncs to all the clusters participating in site replication.
 2022-07-25 17:51:32 -07:00
Harshavardhana
7da9e3a6f8
support encrypted/compressed objects properly during decommission (#15320) 
fixes #15314
 2022-07-16 19:35:24 -07:00
Harshavardhana
1b339ea062
allow force delete on decom pool (#15302) 
Bonus:

- skip suspended pool from being
  considered for multipart uploads

- add more context for decomErrors()
 2022-07-14 20:44:22 -07:00
Anis Elleuch
996cac5fed
Avoid listing buckets from a suspended pool (#15283) 
Make bucket requests sent after decommissioning is started are not
created in a suspended pool. Therefore listing buckets should avoid
suspended pools as well.
 2022-07-13 07:44:50 -07:00
Harshavardhana
ae92521310
remove unnecessary nAgreed value in partial() func (#15242) 2022-07-07 13:45:34 -07:00
Anis Elleuch
8d98282afd
Better reporting of total/free usable capacity of the cluster (#15230) 
The current code uses approximation using a ratio. The approximation 
can skew if we have multiple pools with different disk capacities.

Replace the algorithm with a simpler one which counts data 
disks and ignore parity disks.
 2022-07-06 13:29:49 -07:00
Harshavardhana
2518af5f9e
fix: allow certain mutations on objects during decommissioning (#15231) 
fix: allow certain mutation on objects during decommission

currently by mistake deletion of objects was skipped,
if the object resided on the pool being decommissioned.

delete's are okay to be allowed since decommission is
designed to run on a cluster with active I/O.
 2022-07-06 09:53:16 -07:00
Harshavardhana
9d80ff5a05
fix: decommission delete markers for non-current objects (#15225) 
versioned buckets were not creating the delete markers
present in the versioned stack of an object, this essentially
would stop decommission to succeed.

This PR fixes creating such delete markers properly during
a decommissioning process, adds tests as well.
 2022-07-05 07:37:24 -07:00
Harshavardhana
9c605ad153
allow support for parity '0', '1' enabling support for 2,3 drive setups (#15171) 
allows for further granular setups

- 2 drives (1 parity, 1 data)
- 3 drives (1 parity, 2 data)

Bonus: allows '0' parity as well.
 2022-06-27 20:22:18 -07:00
Anis Elleuch
73733a8fb9
heal: Report correctly in multip-pools setup (#15117) 
`mc admin heal -r <alias>` in a multi setup pools returns incorrectly
grey objects. The reason is that erasure-server-pools.HealObject() runs
HealObject in all pools and returns the result of the first nil
error. However, in the lower erasureObject level, HealObject() returns
nil if an object does not exist + missing error in each disk of the object
in that pool, therefore confusing mc.

Make erasureObject.HealObject() to return not found error in the lower
level, so at least erasureServerPools will know what pools to ignore.
 2022-06-20 08:07:45 -07:00
Harshavardhana
b0d7332a0c
healthcheck cluster endpoint should honor write/readQuorum per pool (#15053) 2022-06-07 19:08:21 -07:00
Harshavardhana
31c4fdbf79
fix: resyncing 'null' version on pre-existing content (#15043) 
PR #15041 fixed replicating 'null' version however
due to a regression from #14994 caused the target
versions for these 'null' versioned objects to have
different 'versions', this may cause confusion with
bi-directional replication and cause double replication.

This PR fixes this properly by making sure we replicate
the correct versions on the objects.
 2022-06-06 15:14:56 -07:00
Harshavardhana
52221db7ef
fix: for unexpected errors in reading versioning config panic (#14994) 
We need to make sure if we cannot read bucket metadata
for some reason, and bucket metadata is not missing and
returning corrupted information we should panic such
handlers to disallow I/O to protect the overall state
on the system.

In-case of such corruption we have a mechanism now
to force recreate the metadata on the bucket, using
`x-minio-force-create` header with `PUT /bucket` API
call.

Additionally fix the versioning config updated state
to be set properly for the site replication healing
to trigger correctly.
 2022-05-31 02:57:57 -07:00
Harshavardhana
f1abb92f0c
feat: Single drive XL implementation (#14970) 
Main motivation is move towards a common backend format
for all different types of modes in MinIO, allowing for
a simpler code and predictable behavior across all features.

This PR also brings features such as versioning, replication,
transitioning to single drive setups.
 2022-05-30 10:58:37 -07:00
Klaus Post
c0bf02b8b2
Ignore disks with 0 total space (#14981) 
Ignore disks with 0 total

Mainly defensive to ensure no `/0` in percent calculation.
 2022-05-26 06:01:50 -07:00
Klaus Post
a4be0b88f6
Add server pool reserved space (#14974) 
If one or more pools reach 85% usage in a set, we will only 
use pools that have more free space.

In case all pools are above 85% we allow all of them to be used 
with the regular distribution.
 2022-05-25 13:20:20 -07:00
Klaus Post
41cdb357bb
Compensate for different server pool sizes (#14968) 
When a server pool with a different number of sets is added they are 
not compensated when choosing a destination pool for new objects. 
This leads to the unbalanced placement of objects with smaller pools 
getting a bigger number of objects since we only compare the destination 
sets directly.

This change will compensate for differences in set sizes when choosing
the destination pool.

Different set sizes are already compensated by fewer disks.
 2022-05-24 18:57:14 -07:00
Anis Elleuch
1e037883b0
pools: GetObjectNInfo should cover locking during object read (#14887) 
In case of multi-pools setup, GetObjectNInfo returns a GetObjectReader
but it unlocks the read lock when quitting GetObjectNInfo. This should
not happen, unlock should only happen when GetObjectReader is closed.
 2022-05-10 07:47:40 -07:00
Harshavardhana
598ce1e354
supply prefix filtering when necessary (#14772) 
currently filterPefix was never used and set
that would filter out entries when needed
when `prefix` doesn't end with `/` - this
often leads to objects getting Walked(), Healed()
that were never requested by the caller.
 2022-04-19 08:20:48 -07:00
Harshavardhana
153a612253
fetch bucket retention config once for ILM evalAction (#14727) 
This is mainly an optimization, does not change any
existing functionality.
 2022-04-11 13:25:32 -07:00
Harshavardhana
e77ad3f9bb
make sure to pass Lifecycle if set for List filtering (#14722) 
PR #14606 never really passed the Lifecycle filter
down to the listing callers to ensure skipping the
entries.
 2022-04-10 11:14:52 -07:00
Anis Elleuch
16431d222c
heal: Enable periodic bitrot scan configuration (#14464) 2022-04-07 08:10:40 -07:00
Harshavardhana
7956ff0313
fix: multiple pool setup return incorrect DeleteMarker metadata (#14642) 2022-03-27 23:39:50 -07:00
Klaus Post
2ac54e5a7b
ListObjects: Filter lifecycle expired objects (#14606) 
For ListObjects and ListObjectsV2 perform lifecycle checks on 
all objects before returning. This will filter out objects that are 
pending lifecycle expiration.

Bonus: Cheaper server pool conflict resolution by not converting to FileInfo.
 2022-03-22 12:39:45 -07:00
Harshavardhana
bd6f7b6d83
fix: make decommission restart non-blocking (#14591) 
currently an on-going decommission, during a server
restart might block the startup sequence for relatively
longer periods, instead start the decommission in
background lazily.
 2022-03-20 14:46:43 -07:00
Harshavardhana
5d6f6d8d5b
create missing .minio.sys/config, .minio.sys/buckets during decommission (#14497) 2022-03-07 16:18:57 -08:00
Harshavardhana
7e803adf13
do not attempt force delete on bucket (#14452) 
caller needs to ask explicitly for force delete
otherwise, the force delete might end up deleting
an existing bucket with data.

fixes #14445
 2022-03-02 20:47:53 -08:00
Harshavardhana
e43cc316ff
remove errCh usage from HealObjects() simplify it (#14414) 
errCh is not needed instead, rely on errs slice to
capture and return errors instead.

most probably fixes #14247
 2022-02-25 12:20:41 -08:00
Klaus Post
60cd513a33
Fix leaked healing goroutines (#14322) 
Only the first `listAndHeal` would ever be able to write on errCh, blocking all others infinitely.

Instead read all errors but return the first non-nil, if any.

The intention appears to be that this should cancel on any error, 
so that part is kept. 

Regression from #13990
 2022-02-16 08:40:18 -08:00
Poorna
ed3418c046
Refactor replication resync to be an active process (#14266) 
When resync is triggered, walk the bucket namespace and
resync objects that are unreplicated. This PR also adds
an API to report resync progress.
 2022-02-10 10:16:52 -08:00
Harshavardhana
f19a414e09
fix: allow danging objects to be purged properly deleteMultipleObjects() (#14273) 
Deleting bulk objects had an issue since the relevant versionID
is not passed through the layers to ensure that the dangling
object purge actually works cleanly.

This is a continuation of quorum related error returned by
multi-object delete API from #14248

This PR ensures that we pass down correct information as
well as extend the scope of dangling object detection.
 2022-02-08 20:08:23 -08:00
Harshavardhana
dbd05d6e82
remove FIFO bucket quota, use ILM expiration instead (#14206) 2022-01-31 11:07:04 -08:00
Harshavardhana
5a9f133491
speed up startup sequence for all operations (#14148) 
This speed-up is intended for faster startup times
for almost all MinIO operations. Changes here are

- Drives are not re-read for 'format.json' on a regular
  basis once read during init is remembered and refreshed
  at 5 second intervals.

- Do not do O_DIRECT tests on drives with existing 'format.json'
  only fresh setups need this check.

- Parallelize initializing erasureSets for multiple sets.

- Avoid re-reading format.json when migrating 'format.json'
  from really old V1->V2->V3

- Keep a copy of local drives for any given server in memory
  for a quick lookup.
 2022-01-24 11:28:45 -08:00
Harshavardhana
404b05a44c
fix: ignore drained pool in Healing, hold lock additionally (#14080) 2022-01-11 12:27:47 -08:00
Harshavardhana
76b21de0c6
feat: decommission feature for pools (#14012) 
```
λ mc admin decommission start alias/ http://minio{1...2}/data{1...4}
```

```
λ mc admin decommission status alias/
┌─────┬─────────────────────────────────┬──────────────────────────────────┬────────┐
│ ID  │ Pools                           │ Capacity                         │ Status │
│ 1st │ http://minio{1...2}/data{1...4} │ 439 GiB (used) / 561 GiB (total) │ Active │
│ 2nd │ http://minio{3...4}/data{1...4} │ 329 GiB (used) / 421 GiB (total) │ Active │
└─────┴─────────────────────────────────┴──────────────────────────────────┴────────┘
```

```
λ mc admin decommission status alias/ http://minio{1...2}/data{1...4}
Progress: ===================> [1GiB/sec] [15%] [4TiB/50TiB]
Time Remaining: 4 hours (started 3 hours ago)
```

```
λ mc admin decommission status alias/ http://minio{1...2}/data{1...4}
ERROR: This pool is not scheduled for decommissioning currently.
```

```
λ mc admin decommission cancel alias/
┌─────┬─────────────────────────────────┬──────────────────────────────────┬──────────┐
│ ID  │ Pools                           │ Capacity                         │ Status   │
│ 1st │ http://minio{1...2}/data{1...4} │ 439 GiB (used) / 561 GiB (total) │ Draining │
└─────┴─────────────────────────────────┴──────────────────────────────────┴──────────┘
```

> NOTE: Canceled decommission will not make the pool active again, since we might have
> Potentially partial duplicate content on the other pools, to avoid this scenario be
> very sure to start decommissioning as a planned activity.

```
λ mc admin decommission cancel alias/ http://minio{1...2}/data{1...4}
┌─────┬─────────────────────────────────┬──────────────────────────────────┬────────────────────┐
│ ID  │ Pools                           │ Capacity                         │ Status             │
│ 1st │ http://minio{1...2}/data{1...4} │ 439 GiB (used) / 561 GiB (total) │ Draining(Canceled) │
└─────┴─────────────────────────────────┴──────────────────────────────────┴────────────────────┘
```
 2022-01-10 09:07:49 -08:00
Harshavardhana
001b77e7e1
use readConfig/saveConfig to simplify I/O on usage/tracker info (#14019) 2022-01-03 10:22:58 -08:00
Harshavardhana
f527c708f2
run gofumpt cleanup across code-base (#14015) 2022-01-02 09:15:06 -08:00
Harshavardhana
b883803b21
fix: healing across pools removing dangling objects (#13990) 
adds other simplifications to the code when running
namespace heals across pools.
 2021-12-25 09:01:44 -08:00
Harshavardhana
2f1e8ba612
add more directory marker tests and fix a bug (#13871) 
ListObjects() should never list a delete-marked folder
if latest is delete marker and delimiter is not provided.

ListObjectVersions() should list a delete-marked folder
even if latest is delete marker and delimiter is not
provided.

Enhance further versioning listing on the buckets
 2021-12-09 14:59:23 -08:00
Harshavardhana
dcff6c996d
fix: do not list delete-marked objects (#13864) 
delete marked objects should not be considered
for listing when listing is delimited, this issue
as introduced in PR #13804 which was mainly to
address listing of directories in listing when
delimited.

This PR fixes this properly and adds tests to
ensure that we behave in accordance with how
an S3 API behaves for ListObjects() without
versions.
 2021-12-08 17:34:52 -08:00
Harshavardhana
b120bcb60a
validate if cached value is empty before use (#13830) 
fixes a crash reproduced while running hadoop tests

```
goroutine 201564 [running]:
github.com/minio/minio/cmd.metaCacheEntries.resolve({0xc0206ab7a0, 0x4, 0xc0015b1908}, 0xc0212a7040)
	github.com/minio/minio/cmd/metacache-entries.go:352 +0x58a
```

Bonus: HeadBucket() should always provide content-type
 2021-12-06 02:59:51 -08:00
Klaus Post
3db931dc0e
Improve listing consistency with version merging (#13723) 2021-12-02 11:29:16 -08:00
Harshavardhana
21c868a646
fix: do not ignore delete-marker directories in ListObjects() (#13804) 
Following scenario such as objects that exist inside a
prefix say `folder/` must be included in the listObjects()
response.

```
2aa16073-387e-492c-9d59-b4b0b7b6997a v2 DEL folder/
a5b9ce68-7239-4921-90ab-20aed402c7a2 v1 PUT folder/
f2211798-0eeb-4d9e-9184-fcfeae27d069 v1 PUT folder/1.txt
```

Current master does not handle this scenario, because it
ignores the top level delete-marker on folders. This is
however unexpected. It is expected that list-objects returns
the top level prefix in this situation.

```
aws s3api list-objects --bucket harshavardhana --prefix unique/ \
     --delimiter / --profile minio --endpoint-url http://localhost:9000
{
    "CommonPrefixes": [
        {
            "Prefix": "unique/folder/"
        }
    ]
}
```

There are applications in the wild such as Hadoop s3a connector
that exploit this behavior and expect the folder to be present
in the response.

This also makes the behavior consistent with AWS S3.
 2021-12-02 08:46:33 -08:00
Harshavardhana
b280a37c4d
add delete-marker proactively in DeleteObject() (#13795) 
single object delete was not working properly
on a bucket when versioning was suspended,
current version 'null' object was never removed.

added unit tests to cover the behavior

fixes #13783
 2021-11-30 18:30:06 -08:00
Harshavardhana
4545ecad58
ignore swapped drives instead of throwing errors (#13655) 
- add checks such that swapped disks are detected
  and ignored - never used for normal operations.

- implement `unrecognizedDisk` to be ignored with
  all operations returning `errDiskNotFound`.

- also add checks such that we do not load unexpected
  disks while connecting automatically.

- additionally humanize the values when printing the errors.

Bonus: fixes handling of non-quorum situations in
getLatestFileInfo(), that does not work when 2 drives
are down, currently this function would return errors
incorrectly.
 2021-11-15 09:46:55 -08:00
Klaus Post
23d6770ff9
Inspect: Preserve permission flags (#13490) 
Preserve permission from disk files. Can help identify issues.

Refactor GetRawData function to be cleaner.
 2021-10-21 11:20:13 -07:00
Harshavardhana
13e41f2c68
fix: simplify loading IAM users to avoid using regular ListObjects() (#13392) 
- avoids relying in listQuorum from the underlying listObjects()
  and potentially missing entries if any.

- avoid the entire merging logic etc, listing raw set by set
  and loading whatever is found is cleaner when dealing with
  a large cluster for IAM metadata.
 2021-10-12 09:53:17 -07:00
jiangfucheng
ec0fee6208
fix: the returned object key when object is directory (#13391) 2021-10-10 09:53:30 -07:00
Klaus Post
421160631a
MakeBucket: Delete leftover buckets on error (#13368) 
In (erasureServerPools).MakeBucketWithLocation deletes the created 
buckets if any set returns an error.

Add `NoRecreate` option, which will not recreate the bucket 
in `DeleteBucket`, if the operation fails.

Additionally use context.Background() for operations we always want to be performed.
 2021-10-06 10:24:40 -07:00
Harshavardhana
60aad1b717
fix: improve bucket deletes we were leaving behind few files (#13364) 
bucket deletes should purge entire bucket metadata
appropriately, use rename() to move the metadata files
to trash folder,

for dangling buckets instead of doing recursive deletes,
rename such buckets to trash folder as well.

Bonus: reduce retry duration for listing to 200ms
 2021-10-06 09:20:25 -07:00
Klaus Post
bc6067d195
Add admin inspect Glob support (#13328) 
* Add admin Glob support

Allow returning multiple files on inspect calls.

```
λ mc admin inspect --json local2/testbucket/nyc-taxi-data-10M.csv.zst/*

...

λ unzip -l inspect.5f0643b2.zip

Archive:  inspect.5f0643b2.zip
  Length      Date    Time    Name
---------  ---------- -----   ----
        0  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/
      802  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/xl.meta
        0  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/
      802  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/xl.meta
        0  2021-09-03 12:50   192.168.1.78:9001/759cd5ac-7860-4cf3-acad-a375fcbae338/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/
      802  2021-09-03 12:50   192.168.1.78:9001/759cd5ac-7860-4cf3-acad-a375fcbae338/testbucket/nyc-taxi-data-10M.csv.zst/xl.meta
        0  2021-09-09 15:56   192.168.1.78:9001/2b48619c-c2fa-4e69-839e-58fc82c1b43e/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/
      802  2021-09-09 15:56   192.168.1.78:9001/2b48619c-c2fa-4e69-839e-58fc82c1b43e/testbucket/nyc-taxi-data-10M.csv.zst/xl.meta
---------                     -------
     3208                     8 files
```

Using fully recursive:

```
λ  mc admin inspect local2/testbucket/nyc-taxi-data-10M.csv.zst/**

...

Archive:  inspect.79c261cb.zip
  Length      Date    Time    Name
---------  ---------- -----   ----
        0  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/
        0  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.1
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.10
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.11
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.12
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.13
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.14
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.15
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.16
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.17
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.18
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.19
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.2
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.20
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.21
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.22
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.23
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.24
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.25
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.26
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.27
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.28
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.29
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.3
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.30
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.31
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.32
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.33
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.34
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.35
  3439368  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.36
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.4
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.5
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.6
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.7
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.8
  4194816  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.9
      802  2021-09-03 12:50   192.168.1.78:9001/a221edde-48fe-45f5-ad32-3bc7131c7659/testbucket/nyc-taxi-data-10M.csv.zst/xl.meta
        0  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/
        0  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/
  4194816  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.1
  4194816  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.10
  4194816  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.11
  4194816  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.12
  4194816  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.13
  4194816  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.14
  4194816  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.15
  4194816  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.16
  4194816  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.17
  4194816  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.18
  4194816  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.19
  4194816  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.2
  4194816  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.20
  4194816  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.21
  4194816  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.22
  4194816  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.23
  4194816  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.24
  4194816  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.25
  4194816  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.26
  4194816  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.27
  4194816  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.28
  4194816  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.29
  4194816  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.3
  4194816  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.30
  4194816  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.31
  4194816  2021-09-03 12:50   192.168.1.78:9001/cb7440ef-f0d9-42a8-b137-f00f519276ca/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.32
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  4194816  2021-09-09 15:56   192.168.1.78:9001/2b48619c-c2fa-4e69-839e-58fc82c1b43e/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.33
  4194816  2021-09-09 15:56   192.168.1.78:9001/2b48619c-c2fa-4e69-839e-58fc82c1b43e/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.34
  4194816  2021-09-09 15:56   192.168.1.78:9001/2b48619c-c2fa-4e69-839e-58fc82c1b43e/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.35
  3439368  2021-09-09 15:56   192.168.1.78:9001/2b48619c-c2fa-4e69-839e-58fc82c1b43e/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.36
  4194816  2021-09-09 15:56   192.168.1.78:9001/2b48619c-c2fa-4e69-839e-58fc82c1b43e/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.4
  4194816  2021-09-09 15:56   192.168.1.78:9001/2b48619c-c2fa-4e69-839e-58fc82c1b43e/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.5
  4194816  2021-09-09 15:56   192.168.1.78:9001/2b48619c-c2fa-4e69-839e-58fc82c1b43e/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.6
  4194816  2021-09-09 15:56   192.168.1.78:9001/2b48619c-c2fa-4e69-839e-58fc82c1b43e/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.7
  4194816  2021-09-09 15:56   192.168.1.78:9001/2b48619c-c2fa-4e69-839e-58fc82c1b43e/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.8
  4194816  2021-09-09 15:56   192.168.1.78:9001/2b48619c-c2fa-4e69-839e-58fc82c1b43e/testbucket/nyc-taxi-data-10M.csv.zst/18a50b3e-3c56-418e-a045-ad5c58c1d44b/part.9
      802  2021-09-09 15:56   192.168.1.78:9001/2b48619c-c2fa-4e69-839e-58fc82c1b43e/testbucket/nyc-taxi-data-10M.csv.zst/xl.meta
---------                     -------
601034920                     156 files

```

Furthermore allow `inspect` to do direct decode from `mc`, for example:

```
λ mc admin inspect --json local2/testbucket/nyc-taxi-data-10M.csv.zst/*|inspect -json
Output decrypted to inspect.5f0643b2.zip
```

- Correct error, forward non-EOF errors.
- Add some extra safety. Log FNF when no files.
- Add `xl-meta` zip support.
For `xl-meta` multiple inputs output object with names as key.
Automatically switches `xl-meta` to single-line output when multiple objects.
Add double-star wildcard support to xl-meta input.

Co-authored-by: Harshavardhana <harsha@minio.io>
 2021-10-01 11:50:00 -07:00