Re: Rebuilding a node without clients hitting it

2019-08-05 Thread John Sanda
Assuming the rebuild is happening on a node in another DC, then there should not be an issue if you are using LOCAL_ONE. If the node is in the local DC (i.e., same DC as the client), I am inclined to think repair would be more appropriate than rebuild but I am not 100% certain. On Mon, Aug 5,

Re: Rebuilding a node without clients hitting it

2019-08-05 Thread Jeff Jirsa
No, not strictly sufficient - makes it much less likely though A client may connect to another node and still send the request to that host if the snitch picks it. You can make THAT less likely with some snitch trickery (setting the badness for the rebuilding host) via jmx > On Aug 5, 2019,

Rebuilding a node without clients hitting it

2019-08-05 Thread Cyril Scetbon
Hey guys, Can you confirm that disabling the native transport (nodetool disablebinary) is enough with Cassandra 3.11+ to avoid clients hitting inconsistent data on that node when they use LOCAL_ONE consistency ? (Particularly when the node is rebuilding …) I'd like to avoid any fancy client

Re: Cassandra read requests not getting timeout

2019-08-05 Thread Jon Haddad
I think this might be because the timeout only applied to each request, and the driver is paginating in the background. Each page is a new request. On Mon, Aug 5, 2019, 12:08 AM Oleksandr Shulgin < oleksandr.shul...@zalando.de> wrote: > On Mon, Aug 5, 2019 at 8:50 AM nokia ceph > wrote: > >> Hi

RE: [EXTERNAL] Re: loading big amount of data to Cassandra

2019-08-05 Thread Durity, Sean R
DataStax has a very fast bulk load tool - dsebulk. Not sure if it is available for open source or not. In my experience so far, I am very impressed with it. Sean Durity – Staff Systems Engineer, Cassandra -Original Message- From: p...@xvalheru.org Sent: Saturday, August 3, 2019 6:06

COPY command giving inconsistent output

2019-08-05 Thread rob.hofmann
Hi all, We’ve been running a production grade cluster with 21 nodes for the past few weeks. We use the COPY TO method to export our data. The thing we are seeing, is that this gives an inconsistent amount of records. On day 1 we get 1.1mil records and the next 900k. On day 3 we see 1mil and

Re: Cassandra read requests not getting timeout

2019-08-05 Thread Oleksandr Shulgin
On Mon, Aug 5, 2019 at 8:50 AM nokia ceph wrote: > Hi Community, > > I am using Cassanadra 3.0.13 . 5 node cluster simple topology. Following > are the timeout parameters in yaml file: > > # grep timeout /etc/cassandra/conf/cassandra.yaml > cas_contention_timeout_in_ms: 1000 >

Cassandra read requests not getting timeout

2019-08-05 Thread nokia ceph
Hi Community, I am using Cassanadra 3.0.13 . 5 node cluster simple topology. Following are the timeout parameters in yaml file: # grep timeout /etc/cassandra/conf/cassandra.yaml cas_contention_timeout_in_ms: 1000 counter_write_request_timeout_in_ms: 5000 cross_node_timeout: false