[CASSANDRA-5121] system.peers.tokens is empty after node restart

• Type: Bug
• Status: Resolved
• Priority: Low
• Resolution: Fixed
• Fix Version/s: 1.2.1

Environment

Windows 8 / Java 1.6.0_37-b06

• Severity: Low
• Assignee: Sylvain Lebresne
• Reporter: Pierre Chalamet

Authors

Sylvain Lebresne

Reviewers

Brandon Williams

• Created: 06/Jan/13 21:32
• Updated: 16/Apr/19 09:32
• Resolved: 15/Jan/13 15:26

Description

Using a 2 nodes fresh cluster (127.0.0.1 & 127.0.0.2) running latest 1.2, I’m querying system.peers to get the nodes of the cluster and their respective token. But it seems there is a problem after either node restart.

When both node starts up, querying system.peers seems ok:

127.0.0.1> select * from system.peers;
+-----------------+------------------------------------------+---------------+-----------+---------------------+-----------------+------------------------------------------+-------------------------------------------+
| data_center     | host_id                                  | peer          | rack      | release_version     | rpc_address     | schema_version                           | tokens                                    |
+=================+==========================================+===============+===========+=====================+=================+==========================================+===========================================+
| datacenter1     | 4819cbb0-9741-4fe0-8d7d-95941b0247bf     | 127.0.0.2     | rack1     | 1.2.0               | 127.0.0.2       | 59adb24e-f3cd-3e02-97f0-5b395827453f     | 56713727820156410577229101238628035242    |
+-----------------+------------------------------------------+---------------+-----------+---------------------+-----------------+------------------------------------------+-------------------------------------------+

But as soon as one node is restarted (let’s say 127.0.0.2), tokens column is then empty:

127.0.0.1> select * from system.peers;
+-----------------+------------------------------------------+---------------+-----------+---------------------+-----------------+------------------------------------------+-------------+
| data_center     | host_id                                  | peer          | rack      | release_version     | rpc_address     | schema_version                           | tokens      |
+=================+==========================================+===============+===========+=====================+=================+==========================================+=============+
| datacenter1     | 4819cbb0-9741-4fe0-8d7d-95941b0247bf     | 127.0.0.2     | rack1     | 1.2.0               | 127.0.0.2       | 59adb24e-f3cd-3e02-97f0-5b395827453f     |             |
+-----------------+------------------------------------------+---------------+-----------+---------------------+-----------------+------------------------------------------+-------------+

Log server side:
DEBUG 22:08:01,608 Responding: ROWS [peer(system, peers), org.apache.cassandra.db.marshal.InetAddressType][data_center(system, peers), org.apache.cassandra.db.marshal.UTF8Type][host_id(system, peers), org.apache.cassandra.db.marshal.UUIDType][rack(system, peers), org.apache.cassandra.db.marshal.UTF8Type][release_version(system, peers), org.apache.cassandra.db.marshal.UTF8Type][rpc_address(system, peers), org.apache.cassandra.db.marshal.InetAddressType][schema_version(system,
peers), org.apache.cassandra.db.marshal.UUIDType][tokens(system, peers), org.apache.cassandra.db.marshal.SetType(org.apache.cassandra.db.marshal.UTF8Type)]
 | 127.0.0.2 | datacenter1 | 4819cbb0-9741-4fe0-8d7d-95941b0247bf | rack1 | 1.2.0 | 127.0.0.2 | 59adb24e-f3cd-3e02-97f0-5b395827453f | null

Restarting the other node (127.0.0.1) restore back the tokens column.