Previously, dedup was added as a downsampling rule with 0s offset to all downsmapling rules with filters. That enforced a metric name lookup even in cases it is not needed.
For example, the following configuration: `-dedup.minScrapeInterval=10s -downsampling.period={__name__=~"node.*"}:1h:1m` would be parsed as: `{__name__=~"node.*"}:1h:1m {}:0s:10s`
This commit changes this logic and treats dedup as a separate case. This allows to perform metric name lookups only in cases when timestamp of current partition can be eligible to use some of downsampling filters. Newer parts will not trigger metric name lookup and will apply deduplication directly.
Related issue:
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7440
---------
Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
Co-authored-by: f41gh7 <nik@victoriametrics.com>
After changes at commit 787b9cd. Minimal timestamps for extDB check was performed without context of the index search prefix.
It worked fine for Single node version, but for cluster version a different prefix was used for
metricID search requests. It may lead to incomplete results, if minimal missing timestamp was cached
for the tenant with different ingestion patterns.
Minimal reproducible case is:
- metrics were ingested for tenants 0 and 1
- at some point in time metrics ingestion for tenant 1 stopped
- index records have the following timestamps layout:
tenant 0: 1,2,3,4,5,6
tenant 1: 1,2,3,4
- after indexDB rotation, containsTimeRange lookups may produce
incorrect results:
time range request for tenant 1 - 5:6 caches 5 as min timestamp
request for the same or smaller time range for tenant 0 now returns
empty results.
Second case:
- requests for the tenant without metrics always updates atomic value with incorrect minimal time range for other tenants.
This commit replaces single atomic with map of search prefix keys. It should have slight performance overhead,
but work consistently for cluster version. minMissingTimestamp is cached by prefix search key, which included tenantID.
Since it will be only populated at runtime, it doesn't hold unused tenants for queries.
Related issue:
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7417
This commit fixes panic for multitenant requests and empty storage node responses for tenants api.
It also optimizes `populateSqTenantTokensIfNeeded` function calls, by making it only once for query request. Previously it was incorrectly called multiple times per each storage node request.
Related issue:
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7549
---------
Signed-off-by: f41gh7 <nik@victoriametrics.com>
Co-authored-by: f41gh7 <nik@victoriametrics.com>
1. Avoid storing the last evaluation results outside of rules, check for
stale time series as soon as possible;
2. remove duplicated template `Clone()`.
This pull request is primarily reducing memory usage when rules produce
large volumes of results, as seen in
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6894.
The CPU time spent on garbage collection remains high and may be
addressed in a separate PR.
### Describe Your Changes
docs update for `vmanomaly` release 1.18.2
### Checklist
The following checks are **mandatory**:
- [x] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
Y-min set to 0 gives better understanding of changes, as it shows absolute change.
Otherwise, the panel will show relative change and could make a false impression
of the changes.
Other panels in dashboards are either instant (no historical data displayed),
or already set to Y-min: 0.
Signed-off-by: hagen1778 <roman@victoriametrics.com>
The following user-level options must be unconditionally inherited by url_map, since this is what most users expect:
- retry_status_codes
- load_balancing_policy
- drop_src_path_prefix_parts
- discover_backend_ips
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7519
### Describe Your Changes
when migrating from cluster to single, the native export API attach
`vm_account_id` and `vm_project_id` labels.
`--vm-native-disable-binary-protocol` is a workaround to remove them,
which is available since v1.93.0 but did not documented in vmctl doc.
See: https://github.com/VictoriaMetrics/VictoriaMetrics/pull/4716
### Checklist
The following checks are **mandatory**:
- [x] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
More key concept tests
- Verify how the time range points are calculated
- Vefify that a range query is equivalent to many instant queries
Fix docs accordingly.
### Checklist
The following checks are **mandatory**:
- [x] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
Signed-off-by: Artem Fetishev <rtm@victoriametrics.com>
The fix at a0a154511a looks too complicated and fragile:
- It moves buMin initialization to the place, which is far from its usage.
- It embeds unclear logic on selecting the proper buMin if it is broken,
into unrelated loop.
The actual fix must be more clear:
$ git diff 95acca6b52 -- app/vmauth/
- if n := bu.concurrentRequests.Load(); n < minRequests {
+ if n := bu.concurrentRequests.Load(); n < minRequests || buMin.isBroken() {
This should simplify further maintenance of this code.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7489
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3061
### Describe Your Changes
doc updates for vmanomaly v1.18.1
### Checklist
The following checks are **mandatory**:
- [x] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
…ides
### Describe Your Changes
Please provide a brief description of the changes you made. Be as
specific as possible to help others understand the purpose and impact of
your modifications.
### Checklist
The following checks are **mandatory**:
- [ ] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
Signed-off-by: hagen1778 <roman@victoriametrics.com>
### Describe Your Changes
Please provide a brief description of the changes you made. Be as
specific as possible to help others understand the purpose and impact of
your modifications.
### Checklist
The following checks are **mandatory**:
- [ ] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
Signed-off-by: hagen1778 <roman@victoriametrics.com>
- The --delete option is needed to be passed to rsync during backups,
Since otherwise the backup may contain superfluous files after the second run of rsync,
because these files can be already removed at the source because of background merge
- the --delete option is needed when restoring from backup in order to remove superfluous files
from the destination directory. Otherwise these files may lead to inconsistent data at VictoriaLogs.
Move the repeated check for an empty value into statsUniqValuesProcessor.updateState() function.
This allow removing duplicate code for this check from statsUniqValuesProcessor.updateState() call sites.
