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vamsikrishna.bm_190953 avatar image
vamsikrishna.bm_190953 asked Erick Ramirez answered

Cannot start Cassandra due to "Unexpected disk state: failed to read transaction log"

Unable to read the transaction log file when trying to bring the cassandra node. could you please help me how to bring up the cassandra service

ERROR [main] 2020-09-02 14:14:24,989 LogTransaction.java (line 492) Unexpected disk state: failed to read transaction log [mc_txn_compaction_69307590-e080-11e9-9e4d-89535f6a3331.log in /var/local/cassandra/data/example/table-3fdd6e00b8addfkdsf4fdsf45652k3a41] Files and contents follow: /var/local/cassandra/data/data/0/example/table-3fdd6e00b8addfkdsf4fdsf45652k3a41/mc_txn_compaction_69307590-e080-11e9-9e4d-89535f6a3331.log    ADD:[/var/lib/cassandra/data/example/table-3fdd6e00b8addfkdsf4fdsf45652k3a41/mc-4353-big,0,8][2595327302]    REMOVE:[/var/lib/cassandra/data/example/table-3fdd6e00b8addfkdsf4fdsf45652k3a41/mc-5432-big,1569517542000,8][3604952]    REMOVE:[/var/lib/cassandra/data/example/table-3fdd6e00b8addfkdsf4fdsf45652k3a41/mc-4355-big,1569517645500,8][1703752985]
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Erick Ramirez avatar image
Erick Ramirez answered

That log entry appears to be from September 2020 so I suspect you're looking at the wrong log files.

In any case, there isn't enough information in what you posted other than there was a problem during one of the compaction tasks and the transactions couldn't be reconciled.

It isn't possible for us to assist you with this problem in a Q&A forum. Please log a ticket with DataStax Support so one of our engineers can assist you directly. Cheers!

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