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From Lars George <lars.geo...@gmail.com>
Subject Re: RPC Metrics
Date Wed, 18 May 2011 16:57:21 GMT
Hi Mathias,

Keep in mind that they are kept as MetricsTimeVaryingRate meaning they
trail by "period" seconds. The values are accrued over the poll
interval and then updated at the end.

But you are saying there is a huge difference? I think this is due to
the puts not actually using puts anymore, but the "multi" calls, ie.
multiPut and multi. Could you verify the numbers you see there?


On Wed, May 18, 2011 at 4:48 PM, Mathias Herberts
<mathias.herberts@gmail.com> wrote:
> While on the topic of metrics, some of them seem misleading,
> in my setup, 'hbase.metrics.put_num_ops' does not seem to reflect the
> number of put ops received by a RS, it's simply way below and seems to
> only reflect puts done in .META., is that supposed to be the case?
> On Wed, May 18, 2011 at 16:42, Stack <stack@duboce.net> wrote:
>> MIA I'd say.  They look useful.
>> St.Ack
>> On Wed, May 18, 2011 at 6:34 AM, Lars George <lars.george@gmail.com> wrote:
>>> Hi,
>>> Did anyone else notice that the RPCMetrics are supposed to export four
>>> internal values:
>>>  public MetricsTimeVaryingRate rpcQueueTime =
>>>          new MetricsTimeVaryingRate("RpcQueueTime", registry);
>>>  public MetricsTimeVaryingRate rpcProcessingTime =
>>>          new MetricsTimeVaryingRate("RpcProcessingTime", registry);
>>>  public MetricsIntValue numOpenConnections =
>>>          new MetricsIntValue("NumOpenConnections", registry);
>>>  public MetricsIntValue callQueueLen =
>>>          new MetricsIntValue("callQueueLen", registry);
>>> The first two show just fine on JMX and Context based output, but the
>>> latter two don't. Nowhere.
>>> Anyone having a clue where they went MIA?
>>> Lars

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