First off, I'm curious what hardware (system specs) you're running this on?
Secondly, here are some observations:
* You're not running the newest JDK7, I can tell by your stack-size.
Consider getting the newest.
* Cassandra 2.0.2 has a lot of improvements, consider upgrading. We
noticed
On Thu, Nov 14, 2013 at 10:05 AM, J. Ryan Earl o...@jryanearl.us wrote:
* Cassandra 2.0.2 has a lot of improvements, consider upgrading. We
noticed improved heap usage compared to 2.0.2
https://engineering.eventbrite.com/what-version-of-cassandra-should-i-run/
And especially if you're using
Hi,
On 11/12/2013 05:29 AM, Aaron Morton wrote:
Are you doing large slices or do could you have a lot of tombstones
on the rows ?
don't really know - how can I monitor that?
For tombstones, do you do a lot of deletes ?
Also in v2.0.2 cfstats has this
Average live cells per slice (last
Are you doing large slices or do could you have a lot of tombstones on the
rows ?
don't really know - how can I monitor that?
For tombstones, do you do a lot of deletes ?
Also in v2.0.2 cfstats has this
Average live cells per slice (last five minutes): 0.0
Hi,
On 11/07/2013 05:18 AM, Aaron Morton wrote:
Class Name
| Shallow Heap | Retained Heap
On 11/06/2013 11:18 PM, Aaron Morton wrote:
The default row cache is of the JVM heap, have you changed to the
ConcurrentLinkedHashCacheProvider ?
ConcurrentLinkedHashCacheProvider was removed in 2.0.x.
Both caches involve several objects per entry (What do we want? Packed
objects. When do we want them? Now!). The size is an estimate of the
off heap values only and not the total size nor number of entries.
An acceptable size will depend on your data and access patterns. In one
case we
Class Name
| Shallow Heap | Retained Heap
---
We have the same problem.
2013/11/5 Jiri Horky ho...@avast.com
Hi there,
we are seeing extensive memory allocation leading to quite long and
frequent GC pauses when using row cache. This is on cassandra 2.0.0
cluster with JNA 4.0 library with following settings:
key_cache_size_in_mb: 300
