In case of any issue, it gets very difficult to debug when we have multiple
versions.
On Tue, 23 Jun 2020 at 22:23, Jürgen Albersdorfer
wrote:
> Hi, I would say „It depends“ - as it always does. I have had a 21 Node
> Cluster running in Production in one DC with versions ranging from 3.11.1
>
Hi, I would say „It depends“ - as it always does. I have had a 21 Node Cluster
running in Production in one DC with versions ranging from 3.11.1 to 3.11.6
without having had any single issue for over a year. I just upgraded all nodes
to 3.11.6 for the sake of consistency.
Von meinem iPhone
Hi ,
We have recently upgraded from 3.11.0 to 3.11.5 . There is a sstable format
change from 3.11.4 .
We also had to expand the cluster and we also discussed about expansion
first and than upgrade. But finally we upgraded and than expanded.
As per our experience what I could tell you is, it is
Hello,
I am trying to upgrade from 3.11.3 to 3.11.6.
Can I add new nodes with the 3.11.6 version to the cluster running with
3.11.3?
Also, I see the SSTable format changed from mc-* to md-*, does this cause
any issues?
https://issues.apache.org/jira/browse/CASSANDRA-15898
> Sent: Tuesday, June 23, 2020 at 4:16 PM
> From: "John Doe"
> To: user@cassandra.apache.org
> Subject: Re: cassandra 3.11.4 deadlock
>
>
> Yes
> here is one more example, happended on another node
>
> using TWCS
> compaction = {'class':
Yes
here is one more example, happended on another node
using TWCS
compaction = {'class':
'org.apache.cassandra.db.compaction.TimeWindowCompactionStrategy',
'compaction_window_size': '30',
'compaction_window_unit': 'MINUTES',
'max_threshold': '32',
Can you open a JIRA?
https://issues.apache.org/jira/projects/CASSANDRA/issues
On Tue, Jun 23, 2020 at 11:56 AM John Doe wrote:
> We are running apache-cassandra-3.11.4, 10 node cluster with -Xms32G
> -Xmx32G -Xmn8G using CMS.
> after running couple of days one of the node become unresponsive
We are running apache-cassandra-3.11.4, 10 node cluster with -Xms32G -Xmx32G
-Xmn8G using CMS.
after running couple of days one of the node become unresponsive and threaddump
(jstack -F) shows deadlock.
Found one Java-level deadlock:
=