Re: Sstableloader

2019-05-29 Thread Patrick Lee
Over the past year we've migrated several clusters from DSE to Apache Cassandra. We've mostly done I place conversions node by node with no downtime. DSE 4.8.X to Apache Cassandra 2.1.x On Wed, May 29, 2019 at 8:55 PM Goetz, Anthony wrote: > My team migrated from DSE to OSS a few years ago by

Re: Constant blocking read repair for such a tiny table

2019-10-16 Thread Patrick Lee
ause it > may not impact you but may represent a real bug. > > Would be great if you could turn on tracing. > > > > On Wed, Oct 16, 2019 at 12:17 PM Patrick Lee > wrote: > >> we do have otc_coalescing_strategy, we did run into that long while back >> wer

Re: Constant blocking read repair for such a tiny table

2019-10-16 Thread Patrick Lee
<https://issues.apache.org/jira/browse/CASSANDRA-12676> since you’ve > upgraded from 2.x? also if you found luck by increasing > native_transport_max_threads to address blocked NTRs (CASSANDRA-11363)? > > ~Asad > > > > > > > > *From:* Patrick Lee [mailto:patrickclee0...@gma

Re: Constant blocking read repair for such a tiny table

2019-10-16 Thread Patrick Lee
t; > --- > Alain Rodriguez - al...@thelastpickle.com > France / Spain > > The Last Pickle - Apache Cassandra Consulting > http://www.thelastpickle.com > > Le ven. 4 oct. 2019 à 00:25, Patrick Lee a > écrit : > >> this table was actually l

Constant blocking read repair for such a tiny table

2019-10-03 Thread Patrick Lee
I have a cluster that is running 3.11.4 ( was upgraded a while back from 2.1.16 ). what I see is a steady rate of read repair which is about 10% constantly on only this 1 table. Repairs have been run (actually several times). The table does not have a lot of writes to it so after repair, or

Re: Constant blocking read repair for such a tiny table

2019-10-03 Thread Patrick Lee
this table was actually leveled compaction before, just changed it to size tiered yesterday while researching this. On Thu, Oct 3, 2019 at 4:31 PM Patrick Lee wrote: > its not really time series data. and it's not updated very often, it > would have some updates but pretty infr

Re: Constant blocking read repair for such a tiny table

2019-10-03 Thread Patrick Lee
data? If so, I have run into issues with repair on > time series data using the SizeTieredCompactionStrategy. I have had > better luck using the TimeWindowCompactionStrategy. > > > > John > > > > Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> fo

Re: Open File Descriptors not cleared post upgrade from 3.11.9 to 4.0.5.

2023-08-16 Thread Patrick Lee
I've actually noticed this as well on a few clusters I deal with but after upgrading Cassandra from 3.11 to 4 we also changed to use Java 11 shortly after the cluster upgrade. After I moved to Java 11 I have not experienced a problem. On Wed, Aug 16, 2023 at 12:12 PM vaibhav khedkar wrote: >

Re: Open File Descriptors not cleared post upgrade from 3.11.9 to 4.0.5.

2023-08-16 Thread Patrick Lee
time given the size of our infrastructure. Is it safe to assume that the issue exists in the combination of upgrades from 3.11.x to 4.0.x and running on JAVA 8 ? Did you happen to have created a ticket for this when you observed the issue ? Thanks vaibhavOn Wed, Aug 16, 2023 at 11:15 AM Patrick Lee