ijuma commented on code in PR #12052:
URL: https://github.com/apache/kafka/pull/12052#discussion_r858994743


##########
docs/design.html:
##########
@@ -125,6 +125,9 @@ <h3 class="anchor-heading"><a id="maximizingefficiency" 
class="anchor-link"></a>
     <p>
     This combination of pagecache and sendfile means that on a Kafka cluster 
where the consumers are mostly caught up you will see no read activity on the 
disks whatsoever as they will be serving data entirely from cache.
     <p>
+    TLS/SSL libraries operate at the user space (in-kernel 
<code>SSL_sendfile</code> is currently not supported by Kafka). Due to this 
restriction, <code>sendfile</code> could not be used when transport layer 
enables SSL protocol. For enabling

Review Comment:
   Nit: "could not be used when transport layer enables SSL protocol" -> "is 
not be used when SSL is enabledl"



##########
docs/design.html:
##########
@@ -125,6 +125,9 @@ <h3 class="anchor-heading"><a id="maximizingefficiency" 
class="anchor-link"></a>
     <p>
     This combination of pagecache and sendfile means that on a Kafka cluster 
where the consumers are mostly caught up you will see no read activity on the 
disks whatsoever as they will be serving data entirely from cache.
     <p>
+    TLS/SSL libraries operate at the user space (in-kernel 
<code>SSL_sendfile</code> is currently not supported by Kafka). Due to this 
restriction, <code>sendfile</code> could not be used when transport layer 
enables SSL protocol. For enabling

Review Comment:
   Nit: "could not be used when transport layer enables SSL protocol" -> "is 
not be used when SSL is enabled"



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