[CASSANDRA-5064] 'Alter table' when it includes collections makes cqlsh hang

• Type: Bug
• Status: Resolved
• Priority: Urgent
• Resolution: Fixed
• Fix Version/s: 1.2.0 rc2

Environment

Ubuntu 12.04 LTS
3.2.0-23-virtual

• Severity: Critical
• Assignee: Sylvain Lebresne
• Reporter: Ryan McGuire

Authors

Sylvain Lebresne

Reviewers

Jonathan Ellis

• Created: 13/Dec/12 16:48
• Updated: 16/Apr/19 09:32
• Resolved: 17/Dec/12 11:05

Description

Having just installed 1.2.0-beta3 issue the following CQL into cqlsh:

drop keyspace test;

create keyspace test with replication = {
          'class': 'SimpleStrategy',
          'replication_factor': '1'
        };

use test;

create table users (
            user_id text PRIMARY KEY,
            first_name text,
            last_name text,
            email_addresses set<text>
        );

alter table users add mailing_address_lines list<text>;

As soon as you issue the alter table statement cqlsh hangs, and the java process hosting Cassandra consumes 100% of a single core's CPU.

If the alter table doesn't include a collection, it runs fine.