Krishnakumar Jinka created CASSANDRA-15860:
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Summary: Cannot change the number of tokens from 512 to 256 Fatal
configuration error; unable to start server.
Key: CASSANDRA-15860
URL: https://issues.apache.org/jira/browse/CASSANDRA-15860
Project: Cassandra
Issue Type: Bug
Reporter: Krishnakumar Jinka
Hello, I was following this issue from jira:
https://issues.apache.org/jira/browse/CASSANDRA-11811?jql=text%20~%20%22CassandraDaemon.java%20Cannot%20change%22
. We are using 3.11.2 and i see this error in the log while starting the
cassandra, and it fails. I read the jira and understood that mutation happens,
thereby doubling the number of tokens, and hence due to mismatch
INFO [main] [2020-05-28 11:05:14] OutboundTcpConnection.java:108 -
OutboundTcpConnection using coalescing strategy DISABLED
INFO [HANDSHAKE-/192.168.5.53] [2020-05-28 11:05:14]
OutboundTcpConnection.java:560 - Handshaking version with /192.168.5.53
INFO [main] [2020-05-28 11:05:15] StorageService.java:707 - Loading persisted
ring state
INFO [main] [2020-05-28 11:05:15] StorageService.java:825 - Starting up server
gossip
INFO [main] [2020-05-28 11:05:15] TokenMetadata.java:479 - Updating topology
for /192.168.5.52
INFO [main] [2020-05-28 11:05:15] TokenMetadata.java:479 - Updating topology
for /192.168.5.52
Cannot change the number of tokens from 512 to 256
Fatal configuration error; unable to start server. See log for stacktrace.
ERROR [main] [2020-05-28 11:05:15] CassandraDaemon.java:708 - Fatal
configuration error
org.apache.cassandra.exceptions.ConfigurationException: Cannot change the
number of tokens from 512 to 256
at
org.apache.cassandra.service.StorageService.joinTokenRing(StorageService.java:989)
~[apache-cassandra-3.11.2.jar:3.11.2]
at
org.apache.cassandra.service.StorageService.initServer(StorageService.java:682)
~[apache-cassandra-3.11.2.jar:3.11.2]
at
org.apache.cassandra.service.StorageService.initServer(StorageService.java:613)
~[apache-cassandra-3.11.2.jar:3.11.2]
at org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:379)
[apache-cassandra-3.11.2.jar:3.11.2]
at
org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:602)
[apache-cassandra-3.11.2.jar:3.11.2]
at org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:691)
[apache-cassandra-3.11.2.jar:3.11.2]
INFO [StorageServiceShutdownHook] [2020-05-28 11:05:15] HintsService.java:220 -
Paused hints dispatch
INFO [StorageServiceShutdownHook] [2020-05-28 11:05:15] Gossiper.java:1540 -
Announcing shutdown
INFO [StorageServiceShutdownHook] [2020-05-28 11:05:15]
StorageService.java:2292 - Node /192.168.5.52 state jump to shutdown
INFO [HANDSHAKE-/192.168.5.53] [2020-05-28 11:05:15]
OutboundTcpConnection.java:560 - Handshaking version with /192.168.5.53
I would like to know
# what would be the root cause of this error
# How to recover from this error. Because everytime i start the Cassandra, it
is blocked due to this.
/etc/cassandra/conf/cassandra.yaml
contains num_tokens as 256 , auto_bootstrap is not provided, i guess by
default it will be true.
INFO [main] [2020-05-28 11:05:13] StorageService.java:618 - Cassandra version:
3.11.2
INFO [main] [2020-05-28 11:05:13] StorageService.java:619 - Thrift API version:
20.1.0
INFO [main] [2020-05-28 11:05:13] StorageService.java:620 - CQL supported
versions: 3.4.4 (default: 3.4.4)
INFO [main] [2020-05-28 11:05:13] StorageService.java:622 - Native protocol
supported versions: 3/v3, 4/v4, 5/v5-beta (default: 4/v4)
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