[CASSANDRA-3000] Ec2MultiRegionSnitch throws AssertionError on EC2

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Labels: ec2multiregionsnitch ec2snitch snitch

Environment

build version: apache-cassandra-2011-08-07_02-23-42

OS: Ubuntu 10.04.2 LTS \n \l

1. uname -a
   Linux ip-10-227-143-202 2.6.32-312-ec2 #24-Ubuntu SMP Fri Jan 7 18:30:50 UTC 2011 x86_64 GNU/Linux

• Severity: Normal
• Assignee: Vijay
• Reporter: Gourav Shah

Authors

Vijay

Reviewers

Brandon Williams

• Created: 07/Aug/11 14:47
• Updated: 16/Apr/19 09:32
• Resolved: 10/Aug/11 16:28

Description

I found Ec2MultiRegionSnitch patch at https://issues.apache.org/jira/browse/CASSANDRA-2452

However, I could not find any documentation on how to get it working, which address to use as seed, listen and thrift addresses. I used the following,

seed_address = Public DNS of the seed node
listen_address = Public DNS of the cluster node
rpc_address = 0.0.0.0
endpoint_snitch: org.apache.cassandra.locator.Ec2MultiRegionSnitch

When I try to start cassandra, I get the following error:

INFO 14:44:19,822 Ec2Snitch adding ApplicationState ec2region=eu-west ec2zone=1c
INFO 14:44:19,831 Starting Messaging Service on ec2-46-137-139-124.eu-west-1.compute.amazonaws.com/10.227.143.202:7000
INFO 14:44:19,851 Using saved token 162732122844140653649170199706439942449
INFO 14:44:19,852 Enqueuing flush of Memtable-LocationInfo@550579946(53/66 serialized/live bytes, 2 ops)
INFO 14:44:19,852 Writing Memtable-LocationInfo@550579946(53/66 serialized/live bytes, 2 ops)
INFO 14:44:19,908 Completed flushing /var/lib/cassandra/data/system/LocationInfo-h-20-Data.db (163 bytes)
INFO 14:44:19,913 Compacting Major: [SSTableReader(path='/var/lib/cassandra/data/system/LocationInfo-h-20-Data.db'), SSTableReader(path='/var/lib/cassandra/data/system/LocationInfo-h-19-Data.db'), SSTableReader(path='/var/lib/cassandra/data/system/LocationInfo-h-17-Data.db'), SSTableReader(path='/var/lib/cassandra/data/system/LocationInfo-h-18-Data.db')]
ERROR 14:44:19,922 Exception encountered during startup.
java.lang.AssertionError
at org.apache.cassandra.gms.Gossiper.compareEndpointStartup(Gossiper.java:620)
at org.apache.cassandra.service.StorageService.handleStateNormal(StorageService.java:803)
at org.apache.cassandra.service.StorageService.onChange(StorageService.java:706)
at org.apache.cassandra.gms.Gossiper.doNotifications(Gossiper.java:839)
at org.apache.cassandra.gms.Gossiper.addLocalApplicationState(Gossiper.java:986)
at org.apache.cassandra.service.StorageService.setToken(StorageService.java:219)
at org.apache.cassandra.service.StorageService.joinTokenRing(StorageService.java:520)
at org.apache.cassandra.service.StorageService.initServer(StorageService.java:434)
at org.apache.cassandra.service.AbstractCassandraDaemon.setup(AbstractCassandraDaemon.java:213)
at org.apache.cassandra.service.AbstractCassandraDaemon.activate(AbstractCassandraDaemon.java:335)
at org.apache.cassandra.thrift.CassandraDaemon.main(CassandraDaemon.java:91)
Exception encountered during startup.
java.lang.AssertionError
at org.apache.cassandra.gms.Gossiper.compareEndpointStartup(Gossiper.java:620)
at org.apache.cassandra.service.StorageService.handleStateNormal(StorageService.java:803)
at org.apache.cassandra.service.StorageService.onChange(StorageService.java:706)
at org.apache.cassandra.gms.Gossiper.doNotifications(Gossiper.java:839)
at org.apache.cassandra.gms.Gossiper.addLocalApplicationState(Gossiper.java:986)
at org.apache.cassandra.service.StorageService.setToken(StorageService.java:219)
at org.apache.cassandra.service.StorageService.joinTokenRing(StorageService.java:520)
at org.apache.cassandra.service.StorageService.initServer(StorageService.java:434)
at org.apache.cassandra.service.AbstractCassandraDaemon.setup(AbstractCassandraDaemon.java:213)
at org.apache.cassandra.service.AbstractCassandraDaemon.activate(AbstractCassandraDaemon.java:335)
at org.apache.cassandra.thrift.CassandraDaemon.main(CassandraDaemon.java:91)