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Miroslav Novotný's questions

Martin Hope
Miroslav Novotný
Asked: 2024-06-20 15:29:23 +0800 CST
  • 5

Estou tentando atualizar meu cluster Cassandra de 3 nós da versão 3.11.13 para 4.1.5.

Depois de iniciar o nó de atualização, recebo este erro:

ERROR [main] 2024-06-20 08:48:23,708 CassandraDaemon.java:915 - Exception encountered during startup
java.lang.AssertionError: null
        at org.apache.cassandra.schema.TableMetadata$CompactTableMetadata.getCompactValueColumn(TableMetadata.java:1515)
        at org.apache.cassandra.schema.TableMetadata$CompactTableMetadata.<init>(TableMetadata.java:1350)
        at org.apache.cassandra.schema.TableMetadata$Builder.build(TableMetadata.java:747)
        at org.apache.cassandra.schema.SchemaKeyspace.fetchTable(SchemaKeyspace.java:943)
        at org.apache.cassandra.schema.SchemaKeyspace.fetchTables(SchemaKeyspace.java:898)
        at org.apache.cassandra.schema.SchemaKeyspace.fetchKeyspace(SchemaKeyspace.java:857)
        at org.apache.cassandra.schema.SchemaKeyspace.fetchKeyspacesWithout(SchemaKeyspace.java:848)
        at org.apache.cassandra.schema.SchemaKeyspace.fetchNonSystemKeyspaces(SchemaKeyspace.java:836)
        at org.apache.cassandra.schema.Schema.loadFromDisk(Schema.java:132)
        at org.apache.cassandra.schema.Schema.loadFromDisk(Schema.java:121)
        at org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:285)
        at org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:759)
        at org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:893)

Encontrei este problema. A atualização do Cassandra 3.11.8 para 4.1.0 retorna "AssertionError: null" na inicialização ao carregar o esquema e o conselho era remover o COMPACT STORAGE.

Existe apenas um ARMAZENAMENTO COMPACTO no keyspace do sistema:

DESCRIBE TABLE system.hints

CREATE TABLE system.hints (
    target_id uuid,
    hint_id timeuuid,
    message_version int,
    mutation blob,
    PRIMARY KEY (target_id, hint_id, message_version)
) WITH COMPACT STORAGE
    AND CLUSTERING ORDER BY (hint_id ASC, message_version ASC)
    AND bloom_filter_fp_chance = 0.01
    AND caching = {'keys': 'ALL', 'rows_per_partition': 'NONE'}
    AND comment = '*DEPRECATED* hints awaiting delivery'
    AND compaction = {'class': 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy', 'enabled': 'false', 'max_threshold': '32', 'min_threshold': '4'}
    AND compression = {'chunk_length_in_kb': '64', 'class': 'org.apache.cassandra.io.compress.LZ4Compressor'}
    AND crc_check_chance = 1.0
    AND dclocal_read_repair_chance = 0.0
    AND default_time_to_live = 0
    AND gc_grace_seconds = 0
    AND max_index_interval = 2048
    AND memtable_flush_period_in_ms = 3600000
    AND min_index_interval = 128
    AND read_repair_chance = 0.0
    AND speculative_retry = '99PERCENTILE';

Infelizmente não posso abandoná-lo:

cqlsh> ALTER TABLE system.hints DROP COMPACT STORAGE;
Unauthorized: Error from server: code=2100 [Unauthorized] message="system keyspace is not user-modifiable."

Não consigo nem fazer o downgrade do nó para 3.11.13:

ERROR [main] 2024-06-20 08:38:07,157 CassandraDaemon.java:803 - Detected unreadable sstables /var/lib/cassandra/data/system/local/nb-244-big-Statistics.db,/var/lib/cassandra/data/system/local/nb-244-big-Data.db,/var/lib/cassandra/data/system/local/nb-244-big-Summary.db,/var/
lib/cassandra/data/system/local/nb-244-big-CompressionInfo.db,/var/lib/cassandra/data/system/local/nb-244-big-Index.db,/var/lib/cassandra/data/system/local/nb-244-big-Filter.db, please check NEWS.txt and ensure that you have upgraded through all required intermediate version
s, running upgradesstables

A tabela system.hints não está presente em meus outros clusters cassandra, onde a atualização ocorreu sem problemas.

Alguém tem alguma idéia de como sair dessa situação?

cassandra