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From "peng xiao (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (CASSANDRA-11815) com.datastax.driver.core.exceptions.UnavailableException: Not enough replica available for query at consistency ONE (1 required but only 0 alive)
Date Tue, 17 May 2016 12:04:13 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-11815?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15286447#comment-15286447
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peng xiao edited comment on CASSANDRA-11815 at 5/17/16 12:03 PM:
-----------------------------------------------------------------

cqlsh> select * from system.schema_keyspaces;


 keyspace_name     | durable_writes | strategy_class                              | strategy_options
-------------------+----------------+---------------------------------------------+----------------------------
    cookieresource |           True | org.apache.cassandra.locator.SimpleStrategy | {"replication_factor":"3"}
   
change to :

keyspace_name     | durable_writes | strategy_class                                      
| strategy_options
-------------------+----------------+------------------------------------------------------+----------------------------
    cookieresource |           True | org.apache.cassandra.locator.NetworkTopologyStrategy
|      {"DC2":"3","DC1":"3"}
   
All the applications will be throwing errror (the application is using LOCAL_QUORUM):

Not enough replica available for query at consistency ONE (1 required but only 0 alive)


was (Author: wavelet):
cqlsh> select * from system.schema_keyspaces;


 keyspace_name     | durable_writes | strategy_class                              | strategy_options
-------------------+----------------+---------------------------------------------+----------------------------
    cookieresource |           True | org.apache.cassandra.locator.SimpleStrategy | {"replication_factor":"3"}
   
change to :

keyspace_name     | durable_writes | strategy_class                                      
| strategy_options
-------------------+----------------+------------------------------------------------------+----------------------------
    cookieresource |           True | org.apache.cassandra.locator.NetworkTopologyStrategy
|      {"DC2":"3","DC1":"3"}
   
All the applications will be throwing errror :the application is using LOCAL_QUORUM

Not enough replica available for query at consistency ONE (1 required but only 0 alive)

> com.datastax.driver.core.exceptions.UnavailableException: Not enough replica available
for query at consistency ONE (1 required but only 0 alive)
> -------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-11815
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-11815
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: peng xiao
>            Priority: Critical
>
> Hi,
> We are trying to to add a new Data Center as per the following link.
> http://docs.datastax.com/en/cassandra/2.1/cassandra/operations/ops_add_dc_to_cluster_t.html
> The problem is that when I run the following command in the original cluster:
> ALTER KEYSPACE carrierdata WITH replication = {'class': 'NetworkTopologyStrategy', 'DC1':3,'DC2':3};
> We will get the following error:
> 2016-05-17 19:38:32.920 ERROR 28583 --- [daed440b-2f19-48a5-8bad-77f7169bc32e-string]
[io-11235-exec-4] c.e.c.s.s.filter.GlobalExceptionHandler  : com.datastax.driver.core.exceptions.UnavailableException:
Not enough replica available for query at consistency ONE (1 required but only 0 alive)
> 	at com.datastax.driver.core.exceptions.UnavailableException.copy(UnavailableException.java:79)
> 	at com.datastax.driver.core.DefaultResultSetFuture.extractCauseFromExecutionException(DefaultResultSetFuture.java:269)
> 	at com.datastax.driver.core.DefaultResultSetFuture.getUninterruptibly(DefaultResultSetFuture.java:183)
> 	at com.datastax.driver.core.AbstractSession.execute(AbstractSession.java:52)
> 	at com.datastax.driver.mapping.MethodMapper.invoke(MethodMapper.java:148)
> 	at com.datastax.driver.mapping.AccessorInvocationHandler.invoke(AccessorInvocationHandler.java:65)
> 	at com.sun.proxy.$Proxy139.getAccounts(Unknown Source)
> 	at com.enniu.cloud.services.data.ecommerce.dao.cassandra.ECommerceDaoCassandraImpl.getECommerceSummaries(ECommerceDaoCassandraImpl.java:310)
> Could you please advise?
> Thanks,
> Peng Xiao



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