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From "Anton Lebedevich (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-7724) Native-Transport threads get stuck in StorageProxy.preparePaxos with no one making progress
Date Fri, 08 Aug 2014 15:33:11 GMT
Anton Lebedevich created CASSANDRA-7724:
-------------------------------------------

             Summary: 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. 



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