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https://issues.apache.org/jira/browse/KUDU-3133?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Grant Henke updated KUDU-3133:
------------------------------
Affects Version/s: 1.7.0
> Poor TLS cypher performance on Java 8
> -------------------------------------
>
> Key: KUDU-3133
> URL: https://issues.apache.org/jira/browse/KUDU-3133
> Project: Kudu
> Issue Type: Bug
> Components: perf, security
> Affects Versions: 1.7.0
> Reporter: Grant Henke
> Assignee: wangningito
> Priority: Major
>
> It was reported a while back that Kudu TLS doesn't perform well on Java 8 due
> to a potential GCM cypher bug or bad selection via `PREFERRED_CIPHER_SUITES`.
> It would be good to get to the bottom of this and fix it or document the
> recommendation to use Java 11.
> Here was the observed impact:
> {code}
> ./bin/ycsb run kudu -P workloads/workloadc -p operationcount=100000000
> -threads 64 -p kudu_num_clients=16 -s -p fieldlength=10000 -p
> kudu_table_num_replicas=1
> java 7u75 with master:
> 0205 11:18:48.647920 (+ 28us) server_negotiation.cc:581] Negotiated
> TLSv1 with cipher AES256-SHA SSLv3 Kx=RSA Au=RSA Enc=AES(256) Mac=SHA1
> ~12k rows/sec
> java 8_141 with master:
> 0205 11:17:45.977107 (+ 31us) server_negotiation.cc:581] Negotiated
> TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 TLSv1.2 Kx=ECDH Au=RSA
> Enc=AESGCM(256) Mac=AEAD
> 6k rows/sec
> java 8_141 with GCM-based codecs removed from Negotiator.java
> 0205 11:25:33.268689 (+ 40us) server_negotiation.cc:581] Negotiated
> TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 TLSv1.2 Kx=ECDH Au=RSA
> Enc=AES(256) Mac=SHA384
> ~6k rows/sec
> java 8_141 with only AES256-SHA remaining in Negotiator.java:
> "TLS_RSA_WITH_AES_256_CBC_SHA" )
> 0205 11:32:07.674860 (+ 44us) server_negotiation.cc:581] Negotiated
> TLSv1.2 with cipher AES256-SHA SSLv3 Kx=RSA Au=RSA Enc=AES(256) Mac=SHA1
> ~9.5k rows/sec
> java 11 with master:
> 0205 11:17:01.416066 (+ 41us) server_negotiation.cc:581] Negotiated
> TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 TLSv1.2 Kx=ECDH Au=RSA
> Enc=AESGCM(256) Mac=AEAD
> ~19k rows/sec
> {code}
>
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