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Posted to user@cassandra.apache.org by Nitan Kainth <ni...@gmail.com> on 2019/01/23 16:00:18 UTC
Quick question about compaction progress
Hi,
Why does nodetool compactionstats not show time remaining when
compactionthroughput is set to 0?
If the node is restarted during compaction, does it continue from where it
is left or does it start over?
If it starts over, what happens to the new sstable that was being used for
compaction?
Re: Quick question about compaction progress
Posted by Nitan Kainth <ni...@gmail.com>.
Thank you Jeff
Regards,
Nitan
Cell: 510 449 9629
> On Jan 23, 2019, at 10:13 AM, Jeff Jirsa <jj...@gmail.com> wrote:
>
>
>
>> On Jan 23, 2019, at 8:00 AM, Nitan Kainth <ni...@gmail.com> wrote:
>>
>> Hi,
>>
>> Why does nodetool compactionstats not show time remaining when compactionthroughput is set to 0?
>
> Because we don’t have a good estimate if we’re not throttling (could be added, just not tracked now)
>
>>
>> If the node is restarted during compaction, does it continue from where it is left or does it start over?
>
> Starts over - the incomplete files on disk will be removed during startup as part of an incomplete lifecycle transaction
>
>>
>> If it starts over, what happens to the new sstable that was being used for compaction?
>
> Removed.
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Re: Quick question about compaction progress
Posted by Jeff Jirsa <jj...@gmail.com>.
> On Jan 23, 2019, at 8:00 AM, Nitan Kainth <ni...@gmail.com> wrote:
>
> Hi,
>
> Why does nodetool compactionstats not show time remaining when compactionthroughput is set to 0?
Because we don’t have a good estimate if we’re not throttling (could be added, just not tracked now)
>
> If the node is restarted during compaction, does it continue from where it is left or does it start over?
Starts over - the incomplete files on disk will be removed during startup as part of an incomplete lifecycle transaction
>
> If it starts over, what happens to the new sstable that was being used for compaction?
Removed.
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