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Is it possible to check the number of tombstones within SSTable or SSTables without stopping a node (when using SSTable Tools)?

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Most of the SSTable utilities are designed to be used offline.

Although it is possible to use tools like sstabledump without stopping Cassandra, in our experience operators run into unexpected issues when they introduce human errors.

For example, operators often make the mistake of running sstabledump as the root superuser instead of cassandra. This can cause files to be owned by root and causes the Cassandra process to crash so we recommend running the tools offline.

As a workaround, you can copy the SSTable data file (and all its component files to another server then run the tools there to avoid making errors in production. Cheers!

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