diff --git a/app/vmselect/main.go b/app/vmselect/main.go
index e4828860c0..f43f8cdaa9 100644
--- a/app/vmselect/main.go
+++ b/app/vmselect/main.go
@@ -43,7 +43,8 @@ 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. By default, the cache is not persisted.")
+	cacheDataPath = flag.String("cacheDataPath", "", "Path to directory for cache files and temporary query results. "+
+		"By default, the cache won't be persisted, and temporary query results will be placed under /tmp/searchResults. If set, the cache will be persisted under cacheDataPath/rollupResult, and temporary query results will be placed under cacheDataPath/tmp/searchResults.")
 	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")
diff --git a/docs/Cluster-VictoriaMetrics.md b/docs/Cluster-VictoriaMetrics.md
index 7e6b8515cf..fd142331f2 100644
--- a/docs/Cluster-VictoriaMetrics.md
+++ b/docs/Cluster-VictoriaMetrics.md
@@ -56,6 +56,8 @@ It increases cluster availability, and simplifies cluster maintenance as well as
 
 ![Cluster Scheme](Cluster-VictoriaMetrics_cluster-scheme.webp)
 
+> Note that `vmselect` despite being stateless still requires some disk space (a few GBs) for temporary caches. Refer to the `-cacheDataPath` command-line flag for more details.
+
 ## Multitenancy
 
 VictoriaMetrics cluster supports multiple isolated tenants (aka namespaces).
@@ -1308,7 +1310,7 @@ 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. By default, the cache is not persisted.
+     Path to directory for cache files and temporary query results. By default, the cache won't be persisted, and temporary query results will be placed under /tmp/searchResults. If set, the cache will be persisted under cacheDataPath/rollupResult, and temporary query results will be placed under cacheDataPath/tmp/searchResults.
   -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