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From DuyHai Doan <doanduy...@gmail.com>
Subject Re: Improving performance where a lot of updates and deletes are required?
Date Tue, 08 Nov 2016 14:36:45 GMT
"Does TTL also cause tombstones?" --> Yes, after the TTL expires, at the
next compaction the TTLed column is replaced by a tombstone, as per my
understanding

On Tue, Nov 8, 2016 at 3:32 PM, Ali Akhtar <ali.rac200@gmail.com> wrote:

> Does TTL also cause tombstones?
>
> On Tue, Nov 8, 2016 at 6:57 PM, Vladimir Yudovin <vladyu@winguzone.com>
> wrote:
>
>> >The deletes will be done at a scheduled time, probably at the end of the
>> day, each day.
>>
>> Probably you can use TTL? http://docs.datastax.com/en/cq
>> l/3.1/cql/cql_using/use_expire_c.html
>>
>> Best regards, Vladimir Yudovin,
>>
>> *Winguzone <https://winguzone.com?from=list> - Hosted Cloud
>> CassandraLaunch your cluster in minutes.*
>>
>>
>> ---- On Tue, 08 Nov 2016 05:04:12 -0500*Ali Akhtar <ali.rac200@gmail.com
>> <ali.rac200@gmail.com>>* wrote ----
>>
>> I have a use case where a lot of updates and deletes to a table will be
>> necessary.
>>
>> The deletes will be done at a scheduled time, probably at the end of the
>> day, each day.
>>
>> Updates will be done throughout the day, as new data comes in.
>>
>> Are there any guidelines on improving cassandra's performance for this
>> use case? Any caveats to be aware of? Any tips, like running nodetool
>> repair every X days?
>>
>> Thanks.
>>
>>
>>
>

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