[
https://issues.apache.org/jira/browse/KAFKA-2561?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14906918#comment-14906918
]
Ismael Juma commented on KAFKA-2561:
------------------------------------
The current plan is to go with the JDK implementation for 0.9.0.0. As you say,
there isn't enough time to do anything else. If and when we add an
implementation based on OpenSSL, it will be optional. The default engine can be
discussed when we get to that point.
I doubt that the Java 9 implementation will be faster than OpenSSL, but it will
hopefully narrow the gap. In any case, that's quite far away as you said. And
people take their time to upgrade as well.
I filed this issue to record and share our findings, but we are not planning to
do additional work on this until after 0.9.0.0 now.
> Optionally support OpenSSL for SSL/TLS
> ---------------------------------------
>
> Key: KAFKA-2561
> URL: https://issues.apache.org/jira/browse/KAFKA-2561
> Project: Kafka
> Issue Type: New Feature
> Components: security
> Affects Versions: 0.9.0.0
> Reporter: Ismael Juma
>
> JDK's `SSLEngine` is unfortunately a bit slow (KAFKA-2431 covers this in more
> detail). We should consider supporting OpenSSL for SSL/TLS. Initial
> experiments on my laptop show that it performs a lot better:
> {code}
> start.time, end.time, data.consumed.in.MB, MB.sec, data.consumed.in.nMsg,
> nMsg.sec, config
> 2015-09-21 14:41:58:245, 2015-09-21 14:47:02:583, 28610.2295, 94.0081,
> 30000000, 98574.6111, Java 8u60/server auth JDK
> SSLEngine/TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
> 2015-09-21 14:38:24:526, 2015-09-21 14:40:19:941, 28610.2295, 247.8900,
> 30000000, 259931.5514, Java 8u60/server auth
> OpenSslEngine/TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
> 2015-09-21 14:49:03:062, 2015-09-21 14:50:27:764, 28610.2295, 337.7751,
> 30000000, 354182.9000, Java 8u60/plaintext
> {code}
> Extracting the throughput figures:
> * JDK SSLEngine: 94 MB/s
> * OpenSSL SSLEngine: 247 MB/s
> * Plaintext: 337 MB/s (code from trunk, so no zero-copy due to KAFKA-2517)
> In order to get these figures, I used Netty's `OpenSslEngine` by hacking
> `SSLFactory` to use Netty's `SslContextBuilder` and made a few changes to
> `SSLTransportLayer` in order to workaround differences in behaviour between
> `OpenSslEngine` and JDK's SSLEngine (filed
> https://github.com/netty/netty/issues/4235 and
> https://github.com/netty/netty/issues/4238 upstream).
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
