Re: A quick question on unlogged batch

2018-11-04 Thread wxn...@zjqunshuo.com
Hi Onmstester, Thank you all. Now I understand whether to use batch or asynchronous writes really depends on use case. Till now batch writes work for me in a 8 nodes cluster with over 500 million requests per day. > Did you compare the cluster performance including blocked natives, dropped > m

Fwd: Re: A quick question on unlogged batch

2018-11-02 Thread onmstester onmstester
unlogged batch meaningfully outperforms parallel execution of individual statements, especially at scale, and creates lower memory pressure on both the clients and cluster.  They do outperform parallel individuals, but in cost of higher pressure on coordinators which leads to more blocked Native

Re: A quick question on unlogged batch

2018-11-01 Thread wxn...@zjqunshuo.com
quot; Date : Thu, 01 Nov 2018 10:48:33 +0330 Subject : A quick question on unlogged batch Forwarded message Hi All, What's the difference between logged batch and unlogged batch? I'm asking this question it's because I'm seeing the below WARNINGs after

Re: A quick question on unlogged batch

2018-11-01 Thread Eric Stevens
= > From : wxn...@zjqunshuo.com > To : "user" > Date : Thu, 01 Nov 2018 10:48:33 +0330 > Subject : A quick question on unlogged batch > Forwarded message > > Hi All, > > What's the difference between logged batch and unlo

Fwd: A quick question on unlogged batch

2018-11-01 Thread onmstester onmstester
parallel single statements with executeAsync. Sent using Zoho Mail Forwarded message From : wxn...@zjqunshuo.com To : "user" Date : Thu, 01 Nov 2018 10:48:33 +0330 Subject : A quick question on unlogged batch Forwarded message Hi All,

A quick question on unlogged batch

2018-11-01 Thread wxn...@zjqunshuo.com
Hi All, What's the difference between logged batch and unlogged batch? I'm asking this question it's because I'm seeing the below WARNINGs after a new app started writting to the cluster. WARNING in system.log: Unlogged batch covering 135 partitions detected against table [cargts.eventdata].