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lib/storage: add support for retention filters (aka multiple retentions for distinct sets of time series)
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/143 Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/289
This commit is contained in:
Aliaksandr Valialkin
parent
d7e657e5f9
commit
8e998aa1a1
45
README.md
45
README.md
@ -1401,7 +1401,11 @@ VictoriaMetrics does not support indefinite retention, but you can specify an ar
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## Multiple retentions
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A single instance of VictoriaMetrics supports only a single retention, which can be configured via `-retentionPeriod` command-line flag. If you need multiple retentions, then you may start multiple VictoriaMetrics instances with distinct values for the following flags:
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Distinct retentions for distinct time series can be configured via [retention filters](#retention-filters)
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in [VictoriaMetrics enterprise](https://victoriametrics.com/products/enterprise/).
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Community version of VictoriaMetrics supports only a single retention, which can be configured via [-retentionPeriod](#retention) command-line flag.
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If you need multiple retentions in community version of VictoriaMetrics, then you may start multiple VictoriaMetrics instances with distinct values for the following flags:
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* `-retentionPeriod`
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* `-storageDataPath`, so the data for each retention period is saved in a separate directory
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@ -1409,9 +1413,41 @@ A single instance of VictoriaMetrics supports only a single retention, which can
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Then set up [vmauth](https://docs.victoriametrics.com/vmauth.html) in front of VictoriaMetrics instances,
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so it could route requests from particular user to VictoriaMetrics with the desired retention.
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The same scheme could be implemented for multiple tenants in [VictoriaMetrics cluster](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html).
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Similar scheme can be applied for multiple tenants in [VictoriaMetrics cluster](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html).
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See [these docs](https://docs.victoriametrics.com/guides/guide-vmcluster-multiple-retention-setup.html) for multi-retention setup details.
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## Retention filters
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[Enterprise version of VictoriaMetrics](https://victoriametrics.com/products/enterprise/) supports e.g. `retention filters`,
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which allow configuring multiple retentions for distinct sets of time series matching the configured [series filters](https://docs.victoriametrics.com/keyConcepts.html#filtering)
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via `-retentionFilter` command-line flag. This flag accepts `filter:duration` options, where `filter` must be
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a valid [series filter](https://docs.victoriametrics.com/keyConcepts.html#filtering), while the `duration`
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must contain valid [retention](#retention) for time series matching the given `filter`. If series doesn't match
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any configured `-retentionFilter`, then the retention configured via [-retentionPeriod](#retention) command-line flag is applied to it.
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If series matches multiple configured retention filters, then the smallest retention is applied.
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For example, the following config sets 3 days retention for time series with `team="juniors"` label,
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30 days retention for time series with `env="dev"` or `env="staging"` label and 1 year retention for the remaining time series:
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```
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-retentionFilter='{team="juniors"}:3d' -retentionFilter='{env=~"dev|staging"}:30d' -retentionPeriod=1y
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```
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Important notes:
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- The data outside of the configured retention isn't deleted instantly - it is deleted eventually during [background merges](https://docs.victoriametrics.com/#storage).
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- The `-retentionFilter` doesn't remove old data from `indexdb` (aka inverted index) until the configured [-retentionPeriod](#retention).
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So the `indexdb` size can grow big under [high churn rate](https://docs.victoriametrics.com/FAQ.html#what-is-high-churn-rate)
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even for small retentions configured via `-retentionFilter`.
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It is safe updating `-retentionFilter` during VictoriaMetrics restarts - the updated retention filters are applied eventually
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to historical data.
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See [how to configure multiple retentions in VictoriaMetrics cluster](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html#retention-filters).
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Retention filters can be evaluated for free by downloading and using enterprise binaries from [the releases page](https://github.com/VictoriaMetrics/VictoriaMetrics/releases).
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## Downsampling
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[VictoriaMetrics Enterprise](https://victoriametrics.com/products/enterprise/) supports multi-level downsampling with `-downsampling.period` command-line flag. For example:
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@ -2206,8 +2242,11 @@ Pass `-help` to VictoriaMetrics in order to see the list of supported command-li
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Optional path to a file with relabeling rules, which are applied to all the ingested metrics. The path can point either to local file or to http url. See https://docs.victoriametrics.com/#relabeling for details. The config is reloaded on SIGHUP signal
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-relabelDebug
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Whether to log metrics before and after relabeling with -relabelConfig. If the -relabelDebug is enabled, then the metrics aren't sent to storage. This is useful for debugging the relabeling configs
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-retentionFilter array
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Retention filter in the format 'filter:retention'. For example, '{env="dev"}:3d' configures the retention for time series with env="dev" label to 3 days. See https://docs.victoriametrics.com/#retention-filters for details. This flag is available only in enterprise version of VictoriaMetrics
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Supports an array of values separated by comma or specified via multiple flags.
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-retentionPeriod value
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Data with timestamps outside the retentionPeriod is automatically deleted
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Data with timestamps outside the retentionPeriod is automatically deleted. See also -retentionFilter
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The following optional suffixes are supported: h (hour), d (day), w (week), y (year). If suffix isn't set, then the duration is counted in months (default 1)
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-retentionTimezoneOffset duration
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The offset for performing indexdb rotation. If set to 0, then the indexdb rotation is performed at 4am UTC time per each -retentionPeriod. If set to 2h, then the indexdb rotation is performed at 4am EET time (the timezone with +2h offset)
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@ -23,7 +23,7 @@ import (
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)
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var (
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retentionPeriod = flagutil.NewDuration("retentionPeriod", "1", "Data with timestamps outside the retentionPeriod is automatically deleted")
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retentionPeriod = flagutil.NewDuration("retentionPeriod", "1", "Data with timestamps outside the retentionPeriod is automatically deleted. See also -retentionFilter")
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snapshotAuthKey = flag.String("snapshotAuthKey", "", "authKey, which must be passed in query string to /snapshot* pages")
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forceMergeAuthKey = flag.String("forceMergeAuthKey", "", "authKey, which must be passed in query string to /internal/force_merge pages")
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forceFlushAuthKey = flag.String("forceFlushAuthKey", "", "authKey, which must be passed in query string to /internal/force_flush pages")
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@ -17,6 +17,8 @@ The following tip changes can be tested by building VictoriaMetrics components f
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**Update note 1:** the `indexdb/tagFilters` cache type at [/metrics](https://docs.victoriametrics.com/#monitoring) has been renamed to `indexdb/tagFiltersToMetricIDs` in order to make its puropose more clear.
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* FEATURE: [VictoriaMetric enterprise](https://victoriametrics.com/products/enterprise/): allow configuring multiple retentions for distinct sets of time series. See [these docs](https://docs.victoriametrics.com/#retention-filters), [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/143) and [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/289) feature request.
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* FEATURE: [VictoriaMetric enterprise](https://victoriametrics.com/products/enterprise/): add support for multiple retentions for distinct tenants - see [these docs](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html#retention-filters) and [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/143) and [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/289) feature request.
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* FEATURE: allow limiting memory usage on a per-query basis with `-search.maxMemoryPerQuery` command-line flag. See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3203).
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* FEATURE: [vmagent](https://docs.victoriametrics.com/vmagent.html): drop all the labels with `__` prefix from discovered targets in the same way as Prometheus does according to [this article](https://www.robustperception.io/life-of-a-label/). Previously the following labels were available during [metric-level relabeling](https://prometheus.io/docs/prometheus/latest/configuration/configuration/#metric_relabel_configs): `__address__`, `__scheme__`, `__metrics_path__`, `__scrape_interval__`, `__scrape_timeout__`, `__param_*`. Now these labels are available only during [target-level relabeling](https://prometheus.io/docs/prometheus/latest/configuration/configuration/#relabel_config). This should reduce CPU usage and memory usage for `vmagent` setups, which scrape big number of targets.
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* FEATURE: [vmagent](https://docs.victoriametrics.com/vmagent.html): improve the performance for metric-level [relabeling](https://docs.victoriametrics.com/vmagent.html#relabeling), which can be applied via `metric_relabel_configs` section at [scrape_configs](https://docs.victoriametrics.com/sd_configs.html#scrape_configs), via `-remoteWrite.relabelConfig` or via `-remoteWrite.urlRelabelConfig` command-line options.
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@ -569,6 +569,34 @@ Restoring from backup:
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2. Restore data from backup using [vmrestore](https://docs.victoriametrics.com/vmrestore.html) into `-storageDataPath` directory.
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3. Start `vmstorage` node.
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## Retention filters
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[VictoriaMetrics enterprise](https://victoriametrics.com/products/enterprise/) supports configuring multiple retentions for distinct sets of time series
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by passing `-retentionFilter` command-line flag to `vmstorage` nodes. See [these docs](https://docs.victoriametrics.com/#retention-filters) for details on this feature.
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Additionally, enterprise version of VictoriaMetrics cluster supports multiple retentions for distinct sets of [tenants](#multitenancy)
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by specifying filters on `vm_account_id` and/or `vm_project_id` pseudo-labels in `-retentionFilter` command-line flag.
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If the tenant doesn't match specified `-retentionFilter` options, then the global `-retentionPeriod` is used for it.
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For example, the following config sets retention to 1 day for [tenants](#multitenancy) with `accountID` starting from '42',
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then sets retention to 3 days for time series with label `env="dev"` or `env="prod"` from any tenant,
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while the rest of tenants will have 4 weeks retention:
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```
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-retentionFilter='{vm_account_id=~"42.*"}:1d' -retentionFilter='{env=~"dev|staging"}:3d' -retentionPeriod=4w
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```
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It is OK to mix filters on real labels with filters on `vm_account_id` and `vm_project_id` pseudo-labels.
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For example, the following config sets retention to 5 days for time series with `env="dev"` label from [tenant](#multitenancy) `accountID=5`:
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```
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-retentionFilter='{vm_account_id="5",env="dev"}:5d'
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```
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See also [these docs](https://docs.victoriametrics.com/#retention-filters) for additional details on retention filters.
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Enterprise binaries can be downloaded and evaluated for free from [the releases page](https://github.com/VictoriaMetrics/VictoriaMetrics/releases).
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## Downsampling
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Downsampling is available in [enterprise version of VictoriaMetrics](https://victoriametrics.com/products/enterprise/). It is configured with `-downsampling.period` command-line flag. The same flag value must be passed to both `vmstorage` and `vmselect` nodes. See [these docs](https://docs.victoriametrics.com/#downsampling) for details.
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@ -1128,8 +1156,11 @@ Below is the output for `/path/to/vmstorage -help`:
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-pushmetrics.url array
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Optional URL to push metrics exposed at /metrics page. See https://docs.victoriametrics.com/#push-metrics . By default metrics exposed at /metrics page aren't pushed to any remote storage
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Supports an array of values separated by comma or specified via multiple flags.
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-retentionFilter array
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Retention filter in the format 'filter:retention'. For example, '{env="dev"}:3d' configures the retention for time series with env="dev" label to 3 days. See https://docs.victoriametrics.com/#retention-filters for details. This flag is available only in enterprise version of VictoriaMetrics
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Supports an array of values separated by comma or specified via multiple flags.
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-retentionPeriod value
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Data with timestamps outside the retentionPeriod is automatically deleted
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Data with timestamps outside the retentionPeriod is automatically deleted. See also -retentionFilter
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The following optional suffixes are supported: h (hour), d (day), w (week), y (year). If suffix isn't set, then the duration is counted in months (default 1)
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-retentionTimezoneOffset duration
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The offset for performing indexdb rotation. If set to 0, then the indexdb rotation is performed at 4am UTC time per each -retentionPeriod. If set to 2h, then the indexdb rotation is performed at 4am EET time (the timezone with +2h offset)
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@ -1402,7 +1402,11 @@ VictoriaMetrics does not support indefinite retention, but you can specify an ar
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## Multiple retentions
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A single instance of VictoriaMetrics supports only a single retention, which can be configured via `-retentionPeriod` command-line flag. If you need multiple retentions, then you may start multiple VictoriaMetrics instances with distinct values for the following flags:
|
||||
Distinct retentions for distinct time series can be configured via [retention filters](#retention-filters)
|
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in [VictoriaMetrics enterprise](https://victoriametrics.com/products/enterprise/).
|
||||
|
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Community version of VictoriaMetrics supports only a single retention, which can be configured via [-retentionPeriod](#retention) command-line flag.
|
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If you need multiple retentions in community version of VictoriaMetrics, then you may start multiple VictoriaMetrics instances with distinct values for the following flags:
|
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|
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* `-retentionPeriod`
|
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* `-storageDataPath`, so the data for each retention period is saved in a separate directory
|
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@ -1410,9 +1414,41 @@ A single instance of VictoriaMetrics supports only a single retention, which can
|
||||
|
||||
Then set up [vmauth](https://docs.victoriametrics.com/vmauth.html) in front of VictoriaMetrics instances,
|
||||
so it could route requests from particular user to VictoriaMetrics with the desired retention.
|
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The same scheme could be implemented for multiple tenants in [VictoriaMetrics cluster](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html).
|
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|
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Similar scheme can be applied for multiple tenants in [VictoriaMetrics cluster](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html).
|
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See [these docs](https://docs.victoriametrics.com/guides/guide-vmcluster-multiple-retention-setup.html) for multi-retention setup details.
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## Retention filters
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[Enterprise version of VictoriaMetrics](https://victoriametrics.com/products/enterprise/) supports e.g. `retention filters`,
|
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which allow configuring multiple retentions for distinct sets of time series matching the configured [series filters](https://docs.victoriametrics.com/keyConcepts.html#filtering)
|
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via `-retentionFilter` command-line flag. This flag accepts `filter:duration` options, where `filter` must be
|
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a valid [series filter](https://docs.victoriametrics.com/keyConcepts.html#filtering), while the `duration`
|
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must contain valid [retention](#retention) for time series matching the given `filter`. If series doesn't match
|
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any configured `-retentionFilter`, then the retention configured via [-retentionPeriod](#retention) command-line flag is applied to it.
|
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If series matches multiple configured retention filters, then the smallest retention is applied.
|
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|
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For example, the following config sets 3 days retention for time series with `team="juniors"` label,
|
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30 days retention for time series with `env="dev"` or `env="staging"` label and 1 year retention for the remaining time series:
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```
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-retentionFilter='{team="juniors"}:3d' -retentionFilter='{env=~"dev|staging"}:30d' -retentionPeriod=1y
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```
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Important notes:
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|
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- The data outside of the configured retention isn't deleted instantly - it is deleted eventually during [background merges](https://docs.victoriametrics.com/#storage).
|
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- The `-retentionFilter` doesn't remove old data from `indexdb` (aka inverted index) until the configured [-retentionPeriod](#retention).
|
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So the `indexdb` size can grow big under [high churn rate](https://docs.victoriametrics.com/FAQ.html#what-is-high-churn-rate)
|
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even for small retentions configured via `-retentionFilter`.
|
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|
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It is safe updating `-retentionFilter` during VictoriaMetrics restarts - the updated retention filters are applied eventually
|
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to historical data.
|
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See [how to configure multiple retentions in VictoriaMetrics cluster](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html#retention-filters).
|
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Retention filters can be evaluated for free by downloading and using enterprise binaries from [the releases page](https://github.com/VictoriaMetrics/VictoriaMetrics/releases).
|
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## Downsampling
|
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|
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[VictoriaMetrics Enterprise](https://victoriametrics.com/products/enterprise/) supports multi-level downsampling with `-downsampling.period` command-line flag. For example:
|
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@ -2207,8 +2243,11 @@ Pass `-help` to VictoriaMetrics in order to see the list of supported command-li
|
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Optional path to a file with relabeling rules, which are applied to all the ingested metrics. The path can point either to local file or to http url. See https://docs.victoriametrics.com/#relabeling for details. The config is reloaded on SIGHUP signal
|
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-relabelDebug
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Whether to log metrics before and after relabeling with -relabelConfig. If the -relabelDebug is enabled, then the metrics aren't sent to storage. This is useful for debugging the relabeling configs
|
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-retentionFilter array
|
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Retention filter in the format 'filter:retention'. For example, '{env="dev"}:3d' configures the retention for time series with env="dev" label to 3 days. See https://docs.victoriametrics.com/#retention-filters for details. This flag is available only in enterprise version of VictoriaMetrics
|
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Supports an array of values separated by comma or specified via multiple flags.
|
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-retentionPeriod value
|
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Data with timestamps outside the retentionPeriod is automatically deleted
|
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Data with timestamps outside the retentionPeriod is automatically deleted. See also -retentionFilter
|
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The following optional suffixes are supported: h (hour), d (day), w (week), y (year). If suffix isn't set, then the duration is counted in months (default 1)
|
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-retentionTimezoneOffset duration
|
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The offset for performing indexdb rotation. If set to 0, then the indexdb rotation is performed at 4am UTC time per each -retentionPeriod. If set to 2h, then the indexdb rotation is performed at 4am EET time (the timezone with +2h offset)
|
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|
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@ -1405,7 +1405,11 @@ VictoriaMetrics does not support indefinite retention, but you can specify an ar
|
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|
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## Multiple retentions
|
||||
|
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A single instance of VictoriaMetrics supports only a single retention, which can be configured via `-retentionPeriod` command-line flag. If you need multiple retentions, then you may start multiple VictoriaMetrics instances with distinct values for the following flags:
|
||||
Distinct retentions for distinct time series can be configured via [retention filters](#retention-filters)
|
||||
in [VictoriaMetrics enterprise](https://victoriametrics.com/products/enterprise/).
|
||||
|
||||
Community version of VictoriaMetrics supports only a single retention, which can be configured via [-retentionPeriod](#retention) command-line flag.
|
||||
If you need multiple retentions in community version of VictoriaMetrics, then you may start multiple VictoriaMetrics instances with distinct values for the following flags:
|
||||
|
||||
* `-retentionPeriod`
|
||||
* `-storageDataPath`, so the data for each retention period is saved in a separate directory
|
||||
@ -1413,9 +1417,41 @@ A single instance of VictoriaMetrics supports only a single retention, which can
|
||||
|
||||
Then set up [vmauth](https://docs.victoriametrics.com/vmauth.html) in front of VictoriaMetrics instances,
|
||||
so it could route requests from particular user to VictoriaMetrics with the desired retention.
|
||||
The same scheme could be implemented for multiple tenants in [VictoriaMetrics cluster](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html).
|
||||
|
||||
Similar scheme can be applied for multiple tenants in [VictoriaMetrics cluster](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html).
|
||||
See [these docs](https://docs.victoriametrics.com/guides/guide-vmcluster-multiple-retention-setup.html) for multi-retention setup details.
|
||||
|
||||
## Retention filters
|
||||
|
||||
[Enterprise version of VictoriaMetrics](https://victoriametrics.com/products/enterprise/) supports e.g. `retention filters`,
|
||||
which allow configuring multiple retentions for distinct sets of time series matching the configured [series filters](https://docs.victoriametrics.com/keyConcepts.html#filtering)
|
||||
via `-retentionFilter` command-line flag. This flag accepts `filter:duration` options, where `filter` must be
|
||||
a valid [series filter](https://docs.victoriametrics.com/keyConcepts.html#filtering), while the `duration`
|
||||
must contain valid [retention](#retention) for time series matching the given `filter`. If series doesn't match
|
||||
any configured `-retentionFilter`, then the retention configured via [-retentionPeriod](#retention) command-line flag is applied to it.
|
||||
If series matches multiple configured retention filters, then the smallest retention is applied.
|
||||
|
||||
For example, the following config sets 3 days retention for time series with `team="juniors"` label,
|
||||
30 days retention for time series with `env="dev"` or `env="staging"` label and 1 year retention for the remaining time series:
|
||||
|
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```
|
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-retentionFilter='{team="juniors"}:3d' -retentionFilter='{env=~"dev|staging"}:30d' -retentionPeriod=1y
|
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```
|
||||
|
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Important notes:
|
||||
|
||||
- The data outside of the configured retention isn't deleted instantly - it is deleted eventually during [background merges](https://docs.victoriametrics.com/#storage).
|
||||
- The `-retentionFilter` doesn't remove old data from `indexdb` (aka inverted index) until the configured [-retentionPeriod](#retention).
|
||||
So the `indexdb` size can grow big under [high churn rate](https://docs.victoriametrics.com/FAQ.html#what-is-high-churn-rate)
|
||||
even for small retentions configured via `-retentionFilter`.
|
||||
|
||||
It is safe updating `-retentionFilter` during VictoriaMetrics restarts - the updated retention filters are applied eventually
|
||||
to historical data.
|
||||
|
||||
See [how to configure multiple retentions in VictoriaMetrics cluster](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html#retention-filters).
|
||||
|
||||
Retention filters can be evaluated for free by downloading and using enterprise binaries from [the releases page](https://github.com/VictoriaMetrics/VictoriaMetrics/releases).
|
||||
|
||||
## Downsampling
|
||||
|
||||
[VictoriaMetrics Enterprise](https://victoriametrics.com/products/enterprise/) supports multi-level downsampling with `-downsampling.period` command-line flag. For example:
|
||||
@ -2210,8 +2246,11 @@ Pass `-help` to VictoriaMetrics in order to see the list of supported command-li
|
||||
Optional path to a file with relabeling rules, which are applied to all the ingested metrics. The path can point either to local file or to http url. See https://docs.victoriametrics.com/#relabeling for details. The config is reloaded on SIGHUP signal
|
||||
-relabelDebug
|
||||
Whether to log metrics before and after relabeling with -relabelConfig. If the -relabelDebug is enabled, then the metrics aren't sent to storage. This is useful for debugging the relabeling configs
|
||||
-retentionFilter array
|
||||
Retention filter in the format 'filter:retention'. For example, '{env="dev"}:3d' configures the retention for time series with env="dev" label to 3 days. See https://docs.victoriametrics.com/#retention-filters for details. This flag is available only in enterprise version of VictoriaMetrics
|
||||
Supports an array of values separated by comma or specified via multiple flags.
|
||||
-retentionPeriod value
|
||||
Data with timestamps outside the retentionPeriod is automatically deleted
|
||||
Data with timestamps outside the retentionPeriod is automatically deleted. See also -retentionFilter
|
||||
The following optional suffixes are supported: h (hour), d (day), w (week), y (year). If suffix isn't set, then the duration is counted in months (default 1)
|
||||
-retentionTimezoneOffset duration
|
||||
The offset for performing indexdb rotation. If set to 0, then the indexdb rotation is performed at 4am UTC time per each -retentionPeriod. If set to 2h, then the indexdb rotation is performed at 4am EET time (the timezone with +2h offset)
|
||||
|
||||
@ -3,12 +3,16 @@
|
||||
|
||||
**Objective**
|
||||
|
||||
Setup Victoria Metrics TSDB with support of multiple retention periods within one installation.
|
||||
Setup Victoria Metrics Cluster with support of multiple retention periods within one installation.
|
||||
|
||||
**Challenge**
|
||||
|
||||
VictoriaMetrics instance (single node or vmstorage node) supports only one retention period.
|
||||
If you use [VictoriaMetrics enterprise](https://victoriametrics.com/products/enterprise/), then you can use
|
||||
[retention filters](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html#retention-filters) for applying multiple retentions
|
||||
to distinct sets of time series and/or [tenants](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html#multitenancy).
|
||||
|
||||
Community version of VictoriaMetrics supports only one retention period via [-retentionPeriod](https://docs.victoriametrics.com/#retention) command-line flag.
|
||||
The following solution allows supporting multiple retentions for community version of VictoriaMetrics.
|
||||
|
||||
**Solution**
|
||||
|
||||
|
||||
@ -2112,6 +2112,8 @@ func newTestStorage() *Storage {
|
||||
retentionMsecs: maxRetentionMsecs,
|
||||
}
|
||||
s.setDeletedMetricIDs(&uint64set.Set{})
|
||||
var idb *indexDB
|
||||
s.idbCurr.Store(idb)
|
||||
return s
|
||||
}
|
||||
|
||||
|
||||
@ -1685,11 +1685,22 @@ func (pt *partition) createSnapshot(srcDir, dstDir string) error {
|
||||
return fmt.Errorf("cannot read directory: %w", err)
|
||||
}
|
||||
for _, fi := range fis {
|
||||
fn := fi.Name()
|
||||
if !fs.IsDirOrSymlink(fi) {
|
||||
if fn == "appliedRetention.txt" {
|
||||
// Copy the appliedRetention.txt file to dstDir.
|
||||
// This file can be created by VictoriaMetrics enterprise.
|
||||
// See https://docs.victoriametrics.com/#retention-filters .
|
||||
// Do not make hard link to this file, since it can be modified over time.
|
||||
srcPath := srcDir + "/" + fn
|
||||
dstPath := dstDir + "/" + fn
|
||||
if err := fs.CopyFile(srcPath, dstPath); err != nil {
|
||||
return fmt.Errorf("cannot copy %q to %q: %w", srcPath, dstPath, err)
|
||||
}
|
||||
}
|
||||
// Skip non-directories.
|
||||
continue
|
||||
}
|
||||
fn := fi.Name()
|
||||
if fn == "tmp" || fn == "txn" {
|
||||
// Skip special dirs.
|
||||
continue
|
||||
|
||||
Loading…
Reference in New Issue
Block a user