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From "Pierre Chalamet" <pie...@chalamet.net>
Subject system.peers.tokens is empty after node restart
Date Sun, 06 Jan 2013 21:34:38 GMT
Hello,

 

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.UTF8
Type)]

| 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.

 

Not sure it's the expected behavior.  Found nothing in Jira, so I've created
https://issues.apache.org/jira/browse/CASSANDRA-5121 

 

Thanks,

- Pierre

 


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