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https://issues.apache.org/jira/browse/CASSANDRA-12208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16288056#comment-16288056
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Daniele Rolando commented on CASSANDRA-12208:
---------------------------------------------
[~krummas] Hey, I see that your patch is present in the [3.11
branch|https://github.com/apache/cassandra/blob/cassandra-3.11/src/java/org/apache/cassandra/tools/SSTableMetadataViewer.java],
however when I run the sstablemetadata binary that comes with
cassandra-tools=3.11.1 I'm not able to specify the {{--gc_grace_seconds}}
option.
I'm using cassandra-tools_3.11.1_all.deb from
http://dl.bintray.com/apache/cassandra/pool/main/c/cassandra/
{code}
~> sstablemetadata
Usage: sstablemetadata <sstable filenames>
~> sstablemetadata --gc_grace_seconds=86400
<path_to_sstable>/lb-80107-big-Data.db
No such file: --gc_grace_seconds=86400
...
{code}
Am I using it wrong or do the new binaries don't contain your patch?
> Estimated droppable tombstones given by sstablemetadata counts tombstones
> that aren't actually "droppable"
> ----------------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-12208
> URL: https://issues.apache.org/jira/browse/CASSANDRA-12208
> Project: Cassandra
> Issue Type: Bug
> Components: Tools
> Reporter: Thanh
> Assignee: Marcus Eriksson
> Priority: Minor
> Fix For: 3.0.9, 3.10
>
>
> => "Estimated droppable tombstones" given by *sstablemetadata* counts
> tombstones that aren't actually "droppable"
> To be clear, the "Estimated droppable tombstones" calculation counts
> tombstones that have not yet passed gc_grace_seconds as droppable tombstones,
> which is unexpected, since such tombstones aren't droppable.
> To observe the problem:
> Create a table using the default gc_grace_seconds (default gc_grace_seconds
> is 86400 is 1 day).
> Populate the table with a couple of records.
> Do a delete.
> Do a "nodetool flush" to flush the memtable to disk.
> Do an "sstablemetadata <sstable>" to get the metadata of the sstable you just
> created by doing the flush, and observe that the Estimated droppable
> tombstones is greater than 0.0 (actual value depends on the total number
> inserts/updates/deletes that you did before triggered the flush)
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