Repair during upgrade have caused corruption too.

Also, dropping and adding columns with same name but different type



Cell: 510 449 9629

On Aug 7, 2019, at 2:42 PM, Jeff Jirsa <> wrote:

Is compression enabled?

If not, bit flips on disk can corrupt data files and reads + repair may send that corruption to other hosts in the cluster 

On Aug 7, 2019, at 3:46 AM, Philip Ó Condúin <> wrote:

Hi All,

I am currently experiencing multiple datafile corruptions across most nodes in my cluster, there seems to be no pattern to the corruption.  I'm starting to think it might be a bug, we're using Cassandra 2.2.13.

Without going into detail about the issue I just want to confirm something.

Can someone share with me a list of scenarios that would cause corruption?

1. OS failure
2. Cassandra disturbed during the writing 

etc etc.

I need to investigate each scenario and don't want to leave any out.