What would running a repair on a cluster do when there are no deletes nor have
there ever been?I have no deletes yet on my data.Yet running a repair
took over 9 hours on a 5 node cluster?
Roger?
:
java -jar /var/lib/cassandra/mx4j-3.0.1.jar url localhost:7199
no main manifest attribute, in /var/lib/cassandra/mx4j-3.0.1.jar
On Jul 26, 2017, at 11:50 AM, Roger Warner
mailto:rwar...@pandora.com>> wrote:
You need to also have the mx4j jar in your Cassandra lib directory.
You need to also have the mx4j jar in your Cassandra lib directory. Double
checking you did that – its not included with the distro.You have to
download it.
http://mx4j.sourceforge.net/
R
From: Nitan Kainth
Reply-To: "user@cassandra.apache.org"
Date: Wednesday, July 26, 2017 at 8:22 AM
This is a quick informational question. I know that Cassandra can detect
failures of nodes and repair them given replication and multiple DC.
My question is can Cassandra tell if data was lost after a failure and node(s)
“fixed” and resumed operation?
If so where would it log or flag it? O
Hi
I’m a little dim on what multi datacenter implies in the 1 replica case. I
know about replica recovery, how about “node recovery”
As I understand if there a node failure or disk crash with a single node
cluster with replication factor 1 I lose data.Easy.
nodetool tells me each node
30G java heap. The dataset is the usual Cassandra-test size
How do I tell if compaction has completed?
I will add more iterations/time to the test.
Thank you
Date: Friday, July 14, 2017 at 2:21 PM
To: Roger Warner
Subject: Re: Reversed read write performance.
Pls add info about caching
I’m confused about read vs write performance. I was expecting to see higher
write than read perf. I’m seeing the opposite by nearly 2X
Please help. Am I doing/configuring something wrong or do I have the wrong
expectations. I am very new to Cassandra. And this is not using Datastax. .
I
