[
https://issues.apache.org/jira/browse/CASSANDRA-15175?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16871714#comment-16871714
]
Joseph Lynch commented on CASSANDRA-15175:
------------------------------------------
{quote}
[~jolynch] one question... when using JDK TLS do you see any errors at all or
you just see more CPU usage and thats it ?
{quote}
I don't see any errors in our logs but we are spending more CPU handling
{{ShortBufferExceptions}} internally to Netty then may make sense. I took the
following screenshots from the [^trunk_LQ_14400cRPS-14400cWPS.svg] flamegraph.
!odd_netty_jdk_tls_cpu_usage.png!
!ShortbufferExceptions.png!
Other than the flamegraph and degraded latency in {{LOCAL_QUORUM}} mode (where
C* nodes actually have to talk to each other through the internode messaging
framework), things appear about the same (no errors that I can see).
> Evaluate 200 node, compression=on, encryption=all
> -------------------------------------------------
>
> Key: CASSANDRA-15175
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15175
> Project: Cassandra
> Issue Type: Sub-task
> Components: Test/benchmark
> Reporter: Joseph Lynch
> Assignee: Joseph Lynch
> Priority: Normal
> Attachments: 30x_14400cRPS-14400cWPS.svg, ShortbufferExceptions.png,
> odd_netty_jdk_tls_cpu_usage.png, trunk_14400cRPS-14400cWPS.svg,
> trunk_187000cRPS-14400cWPS.svg, trunk_187kcRPS_14kcWPS.png,
> trunk_22000cRPS-14400cWPS-jdk.svg, trunk_22000cRPS-14400cWPS-openssl.svg,
> trunk_220kcRPS_14kcWPS.png, trunk_252kcRPS-14kcWPS.png,
> trunk_93500cRPS-14400cWPS.svg, trunk_LQ_14400cRPS-14400cWPS.svg,
> trunk_vs_30x_125kcRPS_14kcWPS.png, trunk_vs_30x_14kRPS_14kcWPS_load.png,
> trunk_vs_30x_14kcRPS_14kcWPS.png,
> trunk_vs_30x_14kcRPS_14kcWPS_schedstat_delays.png,
> trunk_vs_30x_156kcRPS_14kcWPS.png, trunk_vs_30x_24kcRPS_14kcWPS.png,
> trunk_vs_30x_24kcRPS_14kcWPS_load.png, trunk_vs_30x_31kcRPS_14kcWPS.png,
> trunk_vs_30x_62kcRPS_14kcWPS.png, trunk_vs_30x_93kcRPS_14kcWPS.png,
> trunk_vs_30x_LQ_14kcRPS_14kcWPS.png, trunk_vs_30x_summary.png
>
>
> Tracks evaluating a 192 node cluster with compression and encryption on.
> Test setup at (reproduced below)
> [https://docs.google.com/spreadsheets/d/1Vq_wC2q-rcG7UWim-t2leZZ4GgcuAjSREMFbG0QGy20/edit#gid=1336583053]
>
> |Test Setup| |
> |Baseline|3.0.19
> @d7d00036|
> |Candiate|trunk
> @abb0e177|
> | | |
> |Workload| |
> |Write size|4kb random|
> |Read size|4kb random|
> |Per Node Data|110GiB|
> |Generator|ndbench|
> |Key Distribution|Uniform|
> |SSTable Compr|Off|
> |Internode TLS|On (jdk)|
> |Internode Compr|On|
> |Compaction|LCS (320 MiB)|
> |Repair|Off|
> | | |
> |Hardware| |
> |Instance Type|i3.xlarge|
> |Deployment|96 us-east-1, 96 eu-west-1|
> |Region node count|96|
> | | |
> |OS Settings| |
> |IO scheduler|kyber|
> |Net qdisc|tc-fq|
> |readahead|32kb|
> |Java Version|OpenJDK 1.8.0_202 (Zulu)|
> | | |
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org
For additional commands, e-mail: commits-h...@cassandra.apache.org
