instead upon any error in renameData(), we still
preserve the existing dataDir in some form for
recoverability in strange situations such as out
of disk space type errors.
Bonus: avoid running list and heal() instead allow
versions disparity to return the actual versions,
uuid to heal. Currently limit this to 100 versions
and lesser disparate objects.
an undo now reverts back the xl.meta from xl.meta.bkp
during overwrites on such flaky setups.
Bonus: Save N depth syscalls via skipping the parents
upon overwrites and versioned updates.
Flaky setup examples are stretch clusters with regular
packet drops etc, we need to add some defensive code
around to avoid dangling objects.
Keep the EC in header, so it can be retrieved easily for dynamic quorum calculations.
To not force a full metadata decode on every read the value will be 0/0 for data written in previous versions.
Size is expected to increase by 2 bytes per version, since all valid values can be represented with 1 byte each.
Example:
```
λ xl-meta xl.meta
{
"Versions": [
{
"Header": {
"EcM": 4,
"EcN": 8,
"Flags": 6,
"ModTime": "2024-04-17T11:46:25.325613+02:00",
"Signature": "0a409875",
"Type": 1,
"VersionID": "8e03504e11234957b2727bc53eda0d55"
},
...
```
Not used for operations yet.
As node metrics should be scraped per node basis, use a sample
configuartion using all the nodes in targets.
Signed-off-by: Shubhendu Ram Tripathi <shubhendu@minio.io>
When no results match or another error occurs, add an error to the stream. Keep the "inspect-input.txt" as the only thing in the zip for reference.
Example:
```
λ mc support inspect --airgap myminio/testbucket/fjghfjh/**
mc: Using public key from C:\Users\klaus\mc\support_public.pem
File data successfully downloaded as inspect-data.enc
λ inspect inspect-data.enc
Using private key from support_private.pem
output written to inspect-data.zip
2024/04/11 14:10:51 next stream: GetRawData: No files matched the given pattern
λ unzip -l inspect-data.zip
Archive: inspect-data.zip
Length Date Time Name
--------- ---------- ----- ----
222 2024-04-11 14:10 inspect-input.txt
--------- -------
222 1 file
λ
```
Modifies inspect to read until end of stream to report the error.
Bonus: Add legacy commandline params
Add following metrics:
- used_inodes
- total_inodes
- healing
- online
- reads_per_sec
- reads_kb_per_sec
- reads_await
- writes_per_sec
- writes_kb_per_sec
- writes_await
- perc_util
To be able to calculate the `per_sec` values, we capture the IOStats-related
data in the beginning (along with the time at which they were captured),
and compare them against the current values subsequently. This is because
dividing by "time since server uptime." doesn't work in k8s environments.
If site replication enabled across sites, replicate the SSE-C
objects as well. These objects could be read from target sites
using the same client encryption keys.
Signed-off-by: Shubhendu Ram Tripathi <shubhendu@minio.io>
User doesn't need to remember and enter the server values,
rather they can select from the pre populated list.
Signed-off-by: Shubhendu Ram Tripathi <shubhendu@minio.io>
As total drives count, online vs offline are per node basis, its
corect to select node for which graphs need to be rendered.
Set prometheus scrape jobs to fetch metrics from all nodes. A sample
scrape job for node metrics could be as below
```
- job_name: minio-job-node
bearer_token: <token>
metrics_path: /minio/v2/metrics/node
scheme: https
tls_config:
insecure_skip_verify: true
static_configs:
- targets: [tenant1-ss-0-0.tenant1-hl.tenant-ns.svc.cluster.local:9000,tenant1-ss-0-1.tenant1-hl.tenant-ns.svc.cluster.local:9000,tenant1-ss-0-2.tenant1-hl.tenant-ns.svc.cluster.local:9000,tenant1-ss-0-3.tenant1-hl.tenant-ns.svc.cluster.local:9000]
```
Signed-off-by: Shubhendu Ram Tripathi <shubhendu@minio.io>
Metrics v3 is mainly a reorganization of metrics into smaller groups of
metrics and the removal of internal aggregation of metrics received from
peer nodes in a MinIO cluster.
This change adds the endpoint `/minio/metrics/v3` as the top-level metrics
endpoint and under this, various sub-endpoints are implemented. These
are currently documented in `docs/metrics/v3.md`
The handler will serve metrics at any path
`/minio/metrics/v3/PATH`, as follows:
when PATH is a sub-endpoint listed above => serves the group of
metrics under that path; or when PATH is a (non-empty) parent
directory of the sub-endpoints listed above => serves metrics
from each child sub-endpoint of PATH. otherwise, returns a no
resource found error
All available metrics are listed in the `docs/metrics/v3.md`. More will
be added subsequently.
there can be a sudden spike in tiny allocations,
due to too much auditing being done, also don't hang
on the
```
h.logCh <- entry
```
after initializing workers if you do not have a way to
dequeue for some reason.
The middleware sets up tracing, throttling, gzipped responses and
collecting API stats.
Additionally, this change updates the names of handler functions in
metric labels to be the same as the name derived from Go lang reflection
on the handler name.
The metric api labels are now stored in memory the same as the handler
name - they will be camelcased, e.g. `GetObject` instead of `getobject`.
For compatibility, we lowercase the metric api label values when emitting the metrics.
Moved different dashboards to their specific directories. Also
mentioned that these dashbards are examples of how to create
graphs using MinIO provided and metrics and customers should
change / add graphs on their specific need basis.
Signed-off-by: Shubhendu Ram Tripathi <shubhendu@minio.io>
This change is to decouple need for root credentials to match between
site replication deployments.
Also ensuring site replication config initialization is re-tried until
it succeeds, this deoendency is critical to STS flow in site replication
scenario.
globalLocalDrives seem to be not updated during the
HealFormat() leads to a requirement where the server
needs to be restarted for the healing to continue.
local disk metrics were polluting cluster metrics
Please remove them instead of adding relevant ones.
- batch job metrics were incorrectly kept at bucket
metrics endpoint, move it to cluster metrics.
- add tier metrics to cluster peer metrics from the node.
- fix missing set level cluster health metrics
GetActualSize() was heavily relying on o.Parts()
to be non-empty to figure out if the object is multipart or not,
However, we have many indicators of whether an object is multipart
or not.
Blindly assuming that o.Parts == nil is not a multipart, is an
incorrect expectation instead, multipart must be obtained via
- Stored metadata value indicating this is a multipart encrypted object.
- Rely on <meta>-actual-size metadata to get the object's actual size.
This value is preserved for additional reasons such as these.
- ETag != 32 length
fixes#18724
A regression was introduced in #18547, that attempted
to file adding a missing `null` marker however we
should not skip returning based on versionID instead
it must be based on if we are being asked to create
a DEL marker or not.
The PR also has a side-affect for replicating `null`
marker permanent delete, as it may end up adding a
`null` marker while removing one.
This PR should address both scenarios.
NOTE: This feature is not retro-active; it will not cater to previous transactions
on existing setups.
To enable this feature, please set ` _MINIO_DRIVE_QUORUM=on` environment
variable as part of systemd service or k8s configmap.
Once this has been enabled, you need to also set `list_quorum`.
```
~ mc admin config set alias/ api list_quorum=auto`
```
A new debugging tool is available to check for any missing counters.
minio_node_tier_ttlb_seconds - Distribution of time to last byte for streaming objects from warm tier
minio_node_tier_requests_success - Number of requests to download object from warm tier that were successful
minio_node_tier_requests_failure - Number of requests to download object from warm tier that failed
This patch adds the targetID to the existing notification target metrics
and deprecates the current target metrics which points to the overall
event notification subsystem
Regression from #18285. CopyObject options were inheriting source MTime
for metadata timestamps if unspecified, removing this prevented metadata
updates from being applied on target.
The metrics `minio_bucket_replication_received_bytes` and
`minio_bucket_replication_sent_bytes` are additive in nature
and rendering the value as is looks fine.
Also added sort order for few graphs for better reading of tool
tips as keeping ones with highest value at top helps.
Signed-off-by: Shubhendu Ram Tripathi <shubhendu@minio.io>
