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Posted to commits@cassandra.apache.org by "eriksw (via GitHub)" <gi...@apache.org> on 2025/10/20 23:58:23 UTC
Re: [I] awaitSchemaAgreement not ignoring DOWN node [cassandra-gocql-driver]
eriksw commented on issue #1736:
URL: https://github.com/apache/cassandra-gocql-driver/issues/1736#issuecomment-3424170538
Please note that it is possible to filter bogus `system.peers` entries as long as you have access to up/down status of nodes.
For a bogus entry left behind after replacing a node, for each of its tokens, there will be some other node that owns the token and is up.
If all distinct known tokens are accounted for by hosts that are up and agree, `awaitSchemaAgreement` should return nil.
```
peer | data_center | host_id | preferred_ip | rack | release_version | rpc_address | schema_version | tokens
---------------+-------------+--------------------------------------+--------------+------+-----------------+---------------+--------------------------------------+--------------------------------------------------------------------------------------------------
...
10.100.12.56 | fcevent1 | c048b2bf-3c6a-47e2-a386-2f5d3966a3bf | null | b | 3.11.11 | 10.100.12.56 | 269a255f-a4ad-312f-9ac8-6ddd1d7396b4 | {'-4136344956821905473', '-7691186262693016981', '4222335951577735102', '7296793297195993708'}
10.100.12.67 | fcevent1 | d0918a84-f012-4267-b0e7-09d100569a61 | null | a | 3.11.11 | 10.100.12.67 | 269a255f-a4ad-312f-9ac8-6ddd1d7396b4 | {'2300800110566323476', '5759564624386864404', '8065407633600558358', '9218329138207405334'}
10.100.12.41 | fcevent1 | 153cf2ce-4ace-44ab-95b1-fe7343a5aa14 | null | b | 3.11.11 | 10.100.12.41 | 1fb847cb-875c-3aec-ae37-b7a68fab1896 | {'-3655960996569052565', '-8267647014996440468', '5567411040285723241', '955725021858335338'}
10.100.12.194 | fcevent1 | 1fdceb8e-8cd6-465a-a2d3-26dac5e3fd6d | null | b | 3.11.11 | 10.100.12.194 | 269a255f-a4ad-312f-9ac8-6ddd1d7396b4 | {'-3655960996569052565', '-8267647014996440468', '5567411040285723241', '955725021858335338'}
10.100.12.30 | fcevent1 | 05aa4f26-12eb-4d5d-b9db-88f9d800f923 | null | c | 3.11.11 | 10.100.12.30 | 269a255f-a4ad-312f-9ac8-6ddd1d7396b4 | {'-2695193076063346753', '-3848114580670193728', '4894873495931729171', '5663487832336293822'}
10.100.12.184 | fcevent1 | 6eb54f63-f1eb-426f-8d92-515b1e323945 | null | b | 3.11.11 | 10.100.12.184 | 269a255f-a4ad-312f-9ac8-6ddd1d7396b4 | {'-2503039491962205590', '-773657235051935126', '4606643119780017427', '8834021970005123009'}
...
```
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