Re: When are hints written?

r haul in the way hints have been implemented. >> >> Recommend reading up this blog article: >> >> http://www.datastax.com/dev/blog/whats-coming-to-cassandra-in-3-0-improved-hint-storage-and-delivery >> >> hope this helps >> Jan/ >> >> >>

Re: When are hints written?

le: > > http://www.datastax.com/dev/blog/whats-coming-to-cassandra-in-3-0-improved-hint-storage-and-delivery > > hope this helps > Jan/ > > > -------- > On Thu, 4/21/16, Jens Rantil wrote: > > Subject: Re: When are hints writt

Re: When are hints written?

Hi Jens, I suspected that write_request_timeout_in_ms was involved, so I have already raised that to 12 on all nodes in the cluster, and to 13 on the client. This is much longer that any of our writes takes. I looked at the hints files that where being written, and they where all 42 bytes

Re: When are hints written?

been implemented. Recommend reading up this blog article: http://www.datastax.com/dev/blog/whats-coming-to-cassandra-in-3-0-improved-hint-storage-and-delivery hope this helps Jan/ On Thu, 4/21/16, Jens Rantil wrote: Subject: Re: When are hints

Re: When are hints written?

Hi again Bo, I assume this is the piece of documentation you are referring to? http://docs.datastax.com/en/cassandra/2.0/cassandra/dml/dml_about_hh_c.html?scroll=concept_ds_ifg_jqx_zj__performance > If a replica node is overloaded or unavailable, and the failure detector has not yet marked it dow

Re: When are hints written?

Hi Jens, Thank you for the tip! ALL would definitely cure our hints issue, but as you note, it is not optimal as we are unable to take down nodes without clients failing. I am most probably overlooking something in the documentation, but I cannot see any description of when hints are written othe

Re: When are hints written?

how do you unsubscribe From: Bo Finnerup Madsen Sent: Wednesday, April 20, 2016 9:38 AM To: user@cassandra.apache.org Subject: When are hints written? Hi, We have a small 5 node cluster of m4.xlarge clients that receives writes from ~20 clients. The clients

Re: When are hints written?

Also, 3.0.3 is a very new Cassandra version. IMHO, you might want to consider not using bleeding edge in production. See https://www.eventbrite.com/engineering/what-version-of-cassandra-should-i-run/ and http://stackoverflow.com/q/25155916. Cheers, Jens On Wed, Apr 20, 2016 at 3:39 PM Bo Finneru

Re: When are hints written?

Hi Bo, > In our case, I would like for the cluster to wait for the write to be persisted on the relevant nodes before returning an ok to the client. But I don't know which knobs to turn to accomplish this? or if it is even possible :) This is what write consistency option is for. Have a look at h

When are hints written?

Hi, We have a small 5 node cluster of m4.xlarge clients that receives writes from ~20 clients. The clients will write as fast as they can, and the whole process is limited by the write performance of the cassandra cluster. After we have tweaked our schema to avoid large partitions, the load is goi