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https://issues.apache.org/jira/browse/CASSANDRA-5012?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13508332#comment-13508332
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Dave Brosius commented on CASSANDRA-5012:
-----------------------------------------
Some exception occurred on the server, that caused the TSocket error. Finding
and posting that error in the server logs, will help what went wrong.
> alter table alter causes TSocket read 0 bytes
> ---------------------------------------------
>
> Key: CASSANDRA-5012
> URL: https://issues.apache.org/jira/browse/CASSANDRA-5012
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Affects Versions: 1.2.0 beta 2
> Environment: On Mac OSX ./cqlsh
> Connected to Test Cluster at localhost:9160.
> [cqlsh 2.3.0 | Cassandra 1.2.0-rc1-SNAPSHOT | CQL spec 3.0.0 | Thrift
> protocol 19.35.0]
> Reporter: Kristine Hahn
>
> Altering the type of a clustering key column causes TSocket error.
> To reproduce the problem:
> 1. CREATE SCHEMA "Excalibur" WITH REPLICATION = { 'class' : 'SimpleStrategy',
> 'replication_factor' : 3 };
> 2. CREATE TABLE "Excalibur".Test ( id int, species text, color text, PRIMARY
> KEY ((id, species), color)) WITH compaction = { 'class' :
> 'SizeTieredCompactionStrategy', 'min_compaction_threshold' : 6 };
> 3. Alter table "Excalibur".test ALTER color type int;
> Expected result: Error message saying something like, "Changing the type of a
> clustering key is not allowed."
> Actual result: TSocket read 0 bytes
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