> a) It is a major compaction [1]
> b) The old version was deleted/overwritten more than GCGraceSeconds ago [2]
c) and the memtable containing the delete/overwrite has been flushed.
(I suppose that's kinda obvious in retrospect, but it took me a little
bit to realize this was why a 'nodetool comp
On 8/6/10 2:13 PM, Benjamin Black wrote:
Assuming the old version is already on disk in an SSTable, the new
version will not overwrite it, and both versions will be in the
system. A compaction will remove the old version, however.
To be clear, a compaction will only remove the old version if :
To: user@cassandra.apache.org
Subject: one question about cassandra write
Hi
I have a question about the internal of cassandra write.
Say, I already have the following in the database -
(row_x,col_y,val1)
Now if I try to insert
(row_x,col_y,val100), what will happen?
Will it overwrite the old
On Fri, Aug 6, 2010 at 12:51 PM, Maifi Khan wrote:
> Hi
> I have a question about the internal of cassandra write.
> Say, I already have the following in the database -
> (row_x,col_y,val1)
>
> Now if I try to insert
> (row_x,col_y,val100), what will happen?
> Will it overwrite the old data?
> I m
Hi
I have a question about the internal of cassandra write.
Say, I already have the following in the database -
(row_x,col_y,val1)
Now if I try to insert
(row_x,col_y,val100), what will happen?
Will it overwrite the old data?
I mean, will it overwrite the data physically or will it keep both the
o
