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https://issues.apache.org/jira/browse/CASSANDRA-6004?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13777628#comment-13777628
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Ngoc Minh Vo commented on CASSANDRA-6004:
-----------------------------------------

Hello,

I've deployed the new version v2.0.1 but it seems that the bug is not fixed. 
Here is how to reproduce the bug:
{code}
CREATE TABLE pdl_identity (
    id text,                            -- PDL identity (concatenation of 
execution_id, result index, portfolio index)

    date int,                           -- cob_date (in YYYYMMDD format)
    portfolio text,                     -- portfolio_identifier in pricing 
output (stored in lowercase)

    parent_id text,                     -- PDL identity of parent (null for 
root ones)
    result_id text,                     -- pricing result ID (eg. prism_prs_1, 
prism_prs_2,...)
    kind text,                          -- pdl_kind (eg. shift_1%, shift_3%, 
api_reflection, position,...)
    context text,                       -- pdl_context (eg. official, test,...)
    status text,                        -- importing/done/deprecated
    comment_list list<text>,            -- comments (eg. why import failed, ...)
    version text,
    filename text,                      -- PDL file location

    request_list list<text>,            -- request_list (eg. flows, fixings, 
contract_information,...)

    label_list set<text>,               -- list of all labels stored in 
pdl_caching for this PDL identity
                                        --     (it could be useful for data 
purging) 

    PRIMARY KEY (id, date)
);
CREATE INDEX ON pdl_identity(portfolio);
{code}
                
> Performing a "Select count(*)" when replication factor < node count causes 
> assertion error and timeout
> ------------------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-6004
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6004
>             Project: Cassandra
>          Issue Type: Bug
>          Components: API
>         Environment: Two node setup
> Ubuntu Server 12.04
> Tested on JDK 1.6 and 1.7
>            Reporter: James P
>            Assignee: Sylvain Lebresne
>             Fix For: 2.0.1
>
>         Attachments: 6004.txt
>
>
> When performing a "Select Count()" query on a table belonging to a keyspace 
> with a replication factor less than the total node count, the following error 
> is encountered which ultimately results in an rpc_timeout for the request:
> ERROR 18:47:54,660 Exception in thread Thread[Thread-5,5,main]
> java.lang.AssertionError
>       at 
> org.apache.cassandra.db.filter.IDiskAtomFilter$Serializer.deserialize(IDiskAtomFilter.java:116)
>       at 
> org.apache.cassandra.db.RangeSliceCommandSerializer.deserialize(RangeSliceCommand.java:247)
>       at 
> org.apache.cassandra.db.RangeSliceCommandSerializer.deserialize(RangeSliceCommand.java:156)
>       at org.apache.cassandra.net.MessageIn.read(MessageIn.java:99)
>       at 
> org.apache.cassandra.net.IncomingTcpConnection.receiveMessage(IncomingTcpConnection.java:148)
>       at 
> org.apache.cassandra.net.IncomingTcpConnection.handleModernVersion(IncomingTcpConnection.java:125)
>       at 
> org.apache.cassandra.net.IncomingTcpConnection.run(IncomingTcpConnection.java:73)
> The issue is not encountered when the replication factor is >= node count
> To replicate the issue:
> 1) Create the keyspace: CREATE KEYSPACE demodb WITH REPLICATION = {'class' : 
> 'SimpleStrategy', 'replication_factor': 1};
> 2) Create the table CREATE TABLE users (
>   user_name varchar,
>   password varchar,
>   gender varchar,
>   session_token varchar,
>   state varchar,
>   birth_year bigint,
>   PRIMARY KEY (user_name));
> 3) Do a CQL query: "SELECT count( * ) FROM demodb.users" ;
> The issue is reproducible even if the table is empty. Both CQLSH and client 
> (astyanax) api calls are affected. Tested on two different clusters (2-node 
> and 8-node)

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