What does “hash” Data look like?
Rahul
On Jul 24, 2018, 11:30 AM -0400, Arpan Khandelwal , wrote:
> I need to clone data from one keyspace to another keyspace.
> We do it by taking snapshot of keyspace1 and restoring in keyspace2 using
> sstableloader.
>
> Suppose we have following table with ind
What’s the cardinality of hash?
Do they have the same schema? If so you may be able to take a snapshot and
hardlink it in / refresh instead of sstableloader. Alternatively you could drop
the index from the destination keyspace and add it back in after the load
finishes.
How big are the sstabl
Need to review java gc, system , network, disk, memory, node, and table
statistics. A lot can be discerned from visually examining the charts. Eg. if
the nodes with the most local reads is failing or is it the one with the most
writes or is it completely unrelated.
Since it’s a distributed syst
Depends on which GC you are using but you can definitely manage GC - but you
will always be stuck to the upper limit of memory.
I found the Hubspot gc visualizer and the associated blog post very helpful in
the past.
https://github.com/HubSpot/gc_log_visualizer/blob/master/README.md
https://p
How many rows in average per partition?
Let me get this straight : You are bifurcating your partitions on either email
or username , essentially potentially doubling the data because you don’t have
a way to manage a central system of record of users ?
I would do this: (my opinion)
Migrate to a
Hello,
Do we have any standard values for server kernel parameters to run Cassandra.
Please share some insight.
Thanks,
-
To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org
For additional commands, e-mail: user-h...
How many rows in average per partition? around 10K. Let me get this straight :
You are bifurcating your partitions on either email or username , essentially
potentially doubling the data because you don’t have a way to manage a central
system of record of users ? We are just analyzing output log
Thanks Jeff for your response ,and apologies for such a delayed response ,
had some personal emergency.
So Following the config which we are using for that table
PRIMARY KEY ((customer_app_prefix, customer_session_id),
beacon_client_type, sim_created_at)
) WITH CLUSTERING ORDER BY (beacon_client_
