Missing database after cli query

I was running “show series cardinality” from the cli and then on the chronograf UI to monitor how quickly it was increasing, It then dropped to zero and the database was gone.

The database files are also missing from the local storage, this was a large 64Gb database, I cannot find any logs to understand what happened.

Begin with the reported `show series cardinality` CLI query and the corresponding Chronograf UI monitoring sequence; inspect local storage and any available logs around when the 64 GB database disappears. Done means reproducing or isolating the data loss and documenting an actionable fix or diagnostic path.

Written by the indexing model from the issue text.