Removed EnableExemplarStorage hardcoded value (#6216)

Signed-off-by: hiteshwani29 <hiteshwani29@gmail.com>

CHANGELOG.md

@@ -22,6 +22,7 @@ We use *breaking :warning:* to mark changes that are not backward compatible (re
 - [#6183](https://github.com/thanos-io/thanos/pull/6183) Receiver: fix off by one in multitsdb flush that will result in empty blocks if the head only contains one sample
 - [#6197](https://github.com/thanos-io/thanos/pull/6197) Exemplar OTel: Fix exemplar for otel to use traceId instead of spanId and sample only if trace is sampled
 - [#6207](https://github.com/thanos-io/thanos/pull/6207) Receive: Remove the shipper once a tenant has been pruned.
+- [#6216](https://github.com/thanos-io/thanos/pull/6216) Receiver: removed hard-coded value of EnableExemplarStorage flag and set it according to max-exemplar value
 
 ### Changed
 - [#6168](https://github.com/thanos-io/thanos/pull/6168) Receiver: Make ketama hashring fail early when configured with number of nodes lower than the replication factor.

cmd/thanos/receive.go

@@ -85,7 +85,7 @@ func registerReceive(app *extkingpin.App) {
 			NoLockfile:                     conf.noLockFile,
 			WALCompression:                 conf.walCompression,
 			MaxExemplars:                   conf.tsdbMaxExemplars,
-			EnableExemplarStorage:          true,
+			EnableExemplarStorage:          conf.tsdbMaxExemplars > 0,
 			HeadChunksWriteQueueSize:       int(conf.tsdbWriteQueueSize),
 			EnableMemorySnapshotOnShutdown: conf.tsdbMemorySnapshotOnShutdown,
 			EnableNativeHistograms:         conf.tsdbEnableNativeHistograms,