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app/vmselect: update flag description (#6347)

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Update wording to highlight that cache is not persistent if flag is
value is empty. Previously, it was not clear if cache is not used at all
or just not persistent.
This commit is contained in:
Zakhar Bessarab 2024-05-24 17:58:54 +04:00 committed by GitHub
parent db48642302
commit 85eee7de0a
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3 changed files with 3 additions and 3 deletions
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2
README.md
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@ -1296,7 +1296,7 @@ Below is the output for `/path/to/vmselect -help`:
-blockcache.missesBeforeCaching int
The number of cache misses before putting the block into cache. Higher values may reduce indexdb/dataBlocks cache size at the cost of higher CPU and disk read usage (default 2)
-cacheDataPath string
Path to directory for cache files. Cache isn't saved if empty
Path to directory for cache files. By default, the cache is not persisted.
-cacheExpireDuration duration
Items are removed from in-memory caches after they aren't accessed for this duration. Lower values may reduce memory usage at the cost of higher CPU usage. See also -prevCacheRemovalPercent (default 30m0s)
-cluster.tls

2
app/vmselect/main.go
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@ -43,7 +43,7 @@ var (
useProxyProtocol = flagutil.NewArrayBool("httpListenAddr.useProxyProtocol", "Whether to use proxy protocol for connections accepted at the given -httpListenAddr . "+
"See https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt . "+
"With enabled proxy protocol http server cannot serve regular /metrics endpoint. Use -pushmetrics.url for metrics pushing")
cacheDataPath = flag.String("cacheDataPath", "", "Path to directory for cache files. Cache isn't saved if empty")
cacheDataPath = flag.String("cacheDataPath", "", "Path to directory for cache files. By default, the cache is not persisted.")
maxConcurrentRequests = flag.Int("search.maxConcurrentRequests", getDefaultMaxConcurrentRequests(), "The maximum number of concurrent search requests. "+
"It shouldn't be high, since a single request can saturate all the CPU cores, while many concurrently executed requests may require high amounts of memory. "+
"See also -search.maxQueueDuration and -search.maxMemoryPerQuery")

2
docs/Cluster-VictoriaMetrics.md
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@ -1307,7 +1307,7 @@ Below is the output for `/path/to/vmselect -help`:
-blockcache.missesBeforeCaching int
The number of cache misses before putting the block into cache. Higher values may reduce indexdb/dataBlocks cache size at the cost of higher CPU and disk read usage (default 2)
-cacheDataPath string
Path to directory for cache files. Cache isn't saved if empty
Path to directory for cache files. By default, the cache is not persisted.
-cacheExpireDuration duration
Items are removed from in-memory caches after they aren't accessed for this duration. Lower values may reduce memory usage at the cost of higher CPU usage. See also -prevCacheRemovalPercent (default 30m0s)
-cluster.tls