Hi guys,
I have two questions about the drain status.
The doc says when a node is drained it stops accepting new requests and
flush memtable to disk. Does it stops accepting new requests immediately or
wait for the majority of the nodes to gossip about the DRAINED status? If
it stops accepting ne
The document explains you cannot mix them
http://docs.datastax.com/en/archived/cassandra/2.2/cassandra/dml/dmlLtwtTransactions.html
But what happens under the hood if I do? e.g,
DELETE
INSERT ... IF NOT EXISTS
The coordinator has 4 steps to do the second statement (INSERT)
1. prepare/promis
> On Tue, Oct 10, 2017 at 9:07 AM, Daniel Woo
> wrote:
>
>> Hi guys,
>>
>> The ballot UUID should be monotonically increasing on each coordinator,
>> but the UUID in cassandra is version 1 (timestamp based), what happens if
>> the NTP service adju
Hi guys,
The ballot UUID should be monotonically increasing on each coordinator, but
the UUID in cassandra is version 1 (timestamp based), what happens if the
NTP service adjusts system clock while a two phase paxos prepare/commit is
in progress?
--
Thanks & Regards,
Daniel
Hi guys,
I am trying to calculate sum(int) with a prepared statement. The problem is
that I have many rows to sum up, the result could be a bigint, however
cassandra java driver receives the metadata as int. My current workaround
is to change the column type to bigint.
What's the best practice fo
r cassandra node
I am gonna change swappiness to 20%
Thanks,
Daniel
On Fri, Oct 12, 2012 at 2:02 AM, Rob Coli wrote:
> On Wed, Oct 10, 2012 at 11:04 PM, Daniel Woo
> wrote:
> > I am running a mini cluster with 6 nodes, recently we see very frequent
> > ParNewGC on two n
Hi guys,
I am running a mini cluster with 6 nodes, recently we see very frequent
ParNewGC on two nodes. It takes 200 - 800 ms on average, sometimes it takes
5 seconds. You know, hte ParNewGC is stop-of-wolrd GC and our client throws
SocketTimeoutException every 3 minutes.
I checked the load, it s
