> As I understand it, this will not quarantee that they are millisecond
> accurate which is what you need for Cassandra to use the correct commit.
> We've seen problems in production and had to rearchitect parts of the system
> due to this even though all servers are NTP synched.
It does not ma
we don't have those guarantees on EC2. Networks can fluctuate wildly.
On Mon, Jul 25, 2011 at 2:00 PM, zGreenfelder wrote:
>
>
> On Mon, Jul 25, 2011 at 8:51 AM, Paul Loy wrote:
>
>> As I understand it, this will not quarantee that they are millisecond
>> accurate which is what you need for Cass
On Mon, Jul 25, 2011 at 8:51 AM, Paul Loy wrote:
> As I understand it, this will not quarantee that they are millisecond
> accurate which is what you need for Cassandra to use the correct commit.
> We've seen problems in production and had to rearchitect parts of the system
> due to this even tho
xt problem, if you have more than one client...
>>
>>
>> On Mon, Jul 25, 2011 at 5:25 AM, Edward Capriolo
>> wrote:
>>
>>> You should always sync your host clocks. Clients provide timestamp but
>>> for the server gc_grace and ttl columns can have issues
>> You should always sync your host clocks. Clients provide timestamp but for
>> the server gc_grace and ttl columns can have issues if server clocks are not
>> correct.
>>
>> On Sunday, July 24, 2011, 魏金仙 wrote:
>> > hi all,
>> >I'm launchi
And I guess there's the next problem, if you have more than one client...
On Mon, Jul 25, 2011 at 5:25 AM, Edward Capriolo wrote:
> You should always sync your host clocks. Clients provide timestamp but for
> the server gc_grace and ttl columns can have issues if server clocks are no
You should always sync your host clocks. Clients provide timestamp but for
the server gc_grace and ttl columns can have issues if server clocks are not
correct.
On Sunday, July 24, 2011, 魏金仙 wrote:
> hi all,
>I'm launching a cassandra cluster with 30 nodes. I wonder whether the
in
hi all,
I'm launching a cassandra cluster with 30 nodes. I wonder whether the
inconsistency of host clocks will influence the performance of cluster.
Thanks!