Re: Check snapshot / sstable integrity

2017-01-13 Thread Jérôme Mainaud
Hello Alain, Thank you for your answer. Basically having a tool to check all sstables in a folder using the checksum would be nice. But finally I can have the same result using some shasum tool. The goal is to verify integrity of files copied back from an external backup tool. The question came

Re: Check snapshot / sstable integrity

2017-01-12 Thread Alain RODRIGUEZ
Hi Jérôme, About this concern: But my Op retains my arm and asks: "Are you sure that the snapshot is safe > and will be restored before truncating data we have?" Make sure to enable snapshot on truncate (cassandra.yaml) or do it manually. This way if the restored dataset is worst than the curre

Check snapshot / sstable integrity

2017-01-12 Thread Jérôme Mainaud
Hello, Is there any tool to test the integrity of a snapshot? Suppose I have a snapshot based backup stored in an external low cost storage system that I want to restore to a database after someone deleted important data by mistake. Before restoring the files, I will truncate the table to remove