`mc admin heal` command will show servers/disks tolerance, for that
purpose, you need to know the number of parity disks for each storage
class.
Parity is always the same in all pools.
prefixes at top level create such as
```
~ mc mb alias/bucket/prefix
```
The prefix/ incorrect appears as prefix__XL_DIR__/
in the accountInfo output, make sure to trim '__XL_DIR__'
Objects uploaded in this format for example
```
mc cp /etc/hosts alias/bucket/foo/bar/xl.meta
mc ls -r alias/bucket/foo/bar
```
Won't list the object, handle this scenario.
Ensure that one call will succeed and others will serialize
Example failure without code in place:
```
bucket-policy-handlers_test.go:120: unexpected error: cmd.InsufficientWriteQuorum: Storage resources are insufficient for the write operation doz2wjqaovp5kvlrv11fyacowgcvoziszmkmzzz9nk9au946qwhci4zkane5-1/
bucket-policy-handlers_test.go:120: unexpected error: cmd.InsufficientWriteQuorum: Storage resources are insufficient for the write operation doz2wjqaovp5kvlrv11fyacowgcvoziszmkmzzz9nk9au946qwhci4zkane5-1/
bucket-policy-handlers_test.go:135: want 1 ok, got 0
```
We are observing heavy system loads, potentially
locking the system up for periods when concurrent
listing operations are performed.
We place a per-disk lock on walk IO operations.
This will minimize the impact of concurrent listing
operations on the entire system and de-prioritize
them compared to other operations.
Single list operations should remain largely unaffected.
Some applications albeit poorly written rather than using headObject
rely on listObjects to check for existence of object, this unusual
request always has prefix=(to actual object) and max-keys=1
handle this situation specially such that we can avoid readdir()
on the top level parent to avoid sorting and skipping, ensuring
that such type of listObjects() always behaves similar to a
headObject() call.
this addresses a regression from #12984
which only addresses flat key from single
level deep at bucket level.
added extra tests as well to cover all
these scenarios.
- deletes should always Sweep() for tiering at the
end and does not need an extra getObjectInfo() call
- puts, copy and multipart writes should conditionally
do getObjectInfo() when tiering targets are configured
- introduce 'TransitionedObject' struct for ease of usage
and understanding.
- multiple-pools optimization deletes don't need to hold
read locks verifying objects across namespace and pools.
baseDir is empty if the top level prefix does not
end with `/` this causes large recursive listings
without any filtering, to fix this filtering make
sure to set the filter prefix appropriately.
also do not navigate folders at top level that do
not match the filter prefix, entries don't need
to match prefix since they are never prefixed
with the prefix anyways.
This ensures that the deprecation warning is shown when the setting is actually
used in a configuration - instead of showing up whenever LDAP is enabled.
The previous code removes SVC/STS accounts for ldap users that do not
exist anymore in LDAP server. This commit will actually re-evaluate
filter as well if it is changed and remove all local SVC/STS accounts
beloning to the ldap user if the latter is not eligible for the
search filter anymore.
For example: the filter selects enabled users among other criteras in
the LDAP database, if one ldap user changes his status to disabled
later, then associated SVC/STS accounts will be removed because that user
does not meet the filter search anymore.
Traffic metering was not protected against concurrent updates.
```
WARNING: DATA RACE
Read at 0x00c02b0dace8 by goroutine 235:
github.com/minio/minio/cmd.setHTTPStatsHandler.func1()
d:/minio/minio/cmd/generic-handlers.go:360 +0x27d
net/http.HandlerFunc.ServeHTTP()
...
Previous write at 0x00c02b0dace8 by goroutine 994:
github.com/minio/minio/internal/http/stats.(*IncomingTrafficMeter).Read()
d:/minio/minio/internal/http/stats/http-traffic-recorder.go:34 +0xd2
```
The intention is to provide status of any sys services that can
potentially impact the performance of minio.
At present, it will return information about the `selinux` service
(not-installed/disabled/permissive/enforcing)
Signed-off-by: Shireesh Anjal <shireesh@minio.io>
This happens because of a change added where any sub-credential
with parentUser == rootCredential i.e (MINIO_ROOT_USER) will
always be an owner, you cannot generate credentials with lower
session policy to restrict their access.
This doesn't affect user service accounts created with regular
users, LDAP or OpenID
Use `readMetadata` when reading version
information without data requested.
Reduces IO on inlined data.
Bonus: Inline compressed data as well when
compression is enabled.
- avoid extra lookup for 'xl.meta' since we are
definitely sure that it doesn't exist.
- use this in newMultipartUpload() as well
- also additionally do not write with O_DSYNC
to avoid loading the drives, instead create
'xl.meta' for listing operations without
O_DSYNC since these are ephemeral objects.
- do the same with newMultipartUpload() since
it gets synced when the PutObjectPart() is
attempted, we do not need to tax newMultipartUpload()
instead.
removes unexpected features from regular putObject() such as
- increasing parity when disks are down, avoids
a lot of DiskInfo() calls.
- triggering MRF for metacache objects
if disks are offline
- avoiding renames from temporary location
to actual namespace, not needed since
metacache files are unique.
