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From "Kishan Karunaratne (JIRA)" <j...@apache.org>
Subject [jira] [Reopened] (CASSANDRA-8487) system.schema_columns sometimes missing for 'system' keyspace
Date Wed, 03 Jun 2015 21:59:39 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-8487?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kishan Karunaratne reopened CASSANDRA-8487:
-------------------------------------------
    Reproduced In: 2.2.0 beta 1, 2.1.2  (was: 2.1.2)

I was able to reproduce this in C* 2.2.0-beta1 on Windows 64-bit. In my case, I'm missing
both system.schema_columnfamilies and system.schema_columns:

{noformat}
cqlsh> desc tables;

Keyspace system_auth
--------------------
resource_role_permissons_index  role_permissions  role_members  roles

Keyspace system
---------------
<empty>

Keyspace system_distributed
---------------------------
repair_history  parent_repair_history

Keyspace system_traces
----------------------
events  sessions

cqlsh> select * from system.schema_columnfamilies;
Column family 'schema_columnfamilies' not found
{noformat}

> system.schema_columns sometimes missing for 'system' keyspace
> -------------------------------------------------------------
>
>                 Key: CASSANDRA-8487
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8487
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: Adam Holmberg
>            Assignee: Aleksey Yeschenko
>            Priority: Minor
>
> Occasionally a Cassandra node will have missing schema_columns information where keyspace_name='system'.
> {code}
> cqlsh> select * from system.schema_columns where keyspace_name='system';
>  keyspace_name | columnfamily_name | column_name
> ---------------+-------------------+-------------
> (0 rows)
> {code}
> All keyspace and column family schema info is present for 'system' -- it's only the column
information missing.
> This can occur on an existing cluster following node restart. The data usually appears
again after bouncing the node.
> This is impactful to client drivers that expect column meta for configured tables.
> Reproducible in 2.1.2. Have not seen it crop up in 2.0.11.



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