cassandra-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Robert Stupp (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-12028) Proposal to change concurrent_* and native_transport_max_threads defaults
Date Fri, 17 Jun 2016 18:51:05 GMT
Robert Stupp created CASSANDRA-12028:
----------------------------------------

             Summary: Proposal to change concurrent_* and native_transport_max_threads defaults
                 Key: CASSANDRA-12028
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12028
             Project: Cassandra
          Issue Type: Improvement
            Reporter: Robert Stupp
            Priority: Minor


The current recommendations in c.yaml regarding {{concurrent_reads/writes/counter_writes/materialized_view_writes}}
and {{native_transport_max_threads}} feel oversized.

While working on some load/stress tests, reducing these to the number of CPUs and also lowering
{{native_transport_max_threads}} to 2xCPUs had no influence to the actual performance but
reduced the risk of allocating too many threads when a node ran into a longer GC and requests
against that node piled up.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message