Hi All,
I have 20 nodes cassandra cluster with 500gb of data and replication factor
of 1. I increased the replication factor to 3 and ran nodetool repair on
each node one by one as the docs says. But it takes hours for 1 node to
finish repair. Is that normal or am I doing something wrong?
Also,
Repair's performance is going to vary heavily by a large number of factors,
hours for 1 node to finish is within range of what I see in the wild, again
there are so many factors it's impossible to speculate on if that is good
or bad for your cluster. Factors that matter include:
1. speed of dis
Thanks Ryan.
I want to understand what is the best way to increase/change the replica
factor of the cassandra cluster? My priority is consistency and probably I
am tolerant about some down time of the cluster. Is it totally weird to try
changing replica later or are there people doing it for produ
On Mon, Dec 29, 2014 at 1:40 PM, Pranay Agarwal
wrote:
> I want to understand what is the best way to increase/change the replica
> factor of the cassandra cluster? My priority is consistency and probably I
> am tolerant about some down time of the cluster. Is it totally weird to try
> changing r
Thanks Robert. Also, I have seen the node-repair operation to fail for some
nodes. What are the chances of the data getting corrupt if node-repair
fails? I am okay with data availability issues for some time as long as I
don't loose or corrupt data. Also, is there way to restore the graph
without h
On Tue, Jan 6, 2015 at 4:40 PM, Pranay Agarwal
wrote:
> Thanks Robert. Also, I have seen the node-repair operation to fail for
> some nodes. What are the chances of the data getting corrupt if node-repair
> fails?
>
If repair does not complete before gc_grace_seconds, chance of data getting
corr