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Benedict commented on CASSANDRA-7724: ------------------------------------- It might be worth trying the (beta) patch for CASSANDRA-7542, to see if that has any impact. If it does, we could accelerate polishing it off. FTR, it is not totally bizarre that all of them should be waiting - if another node is making progress on a round, all of the threads on a given node could be paused > Native-Transport threads get stuck in StorageProxy.preparePaxos with no one > making progress > ------------------------------------------------------------------------------------------- > > Key: CASSANDRA-7724 > URL: https://issues.apache.org/jira/browse/CASSANDRA-7724 > Project: Cassandra > Issue Type: Bug > Components: Core > Environment: Linux 3.13.11-4 #4 SMP PREEMPT x86_64 Intel(R) Core(TM) > i7 CPU 950 @ 3.07GHz GenuineIntel > java version "1.8.0_05" > Java(TM) SE Runtime Environment (build 1.8.0_05-b13) > Java HotSpot(TM) 64-Bit Server VM (build 25.5-b02, mixed mode) > cassandra 2.0.9 > Reporter: Anton Lebedevich > Attachments: cassandra.threads2 > > > We've got a lot of write timeouts (cas) when running > "INSERT INTO cas_demo(pri_id, sec_id, flag, something) VALUES(?, ?, ?, ?) IF > NOT EXISTS" > from 16 connections in parallel using the same pri_id and different sec_id. > Doing the same from 4 connections in parallel works ok. > All configuration values are at their default values. > CREATE TABLE cas_demo ( > pri_id varchar, > sec_id varchar, > flag boolean, > something set<varchar>, > PRIMARY KEY (pri_id, sec_id) > ); > CREATE INDEX cas_demo_flag ON cas_demo(flag); > Full thread dump is attached. -- This message was sent by Atlassian JIRA (v6.3.4#6332)