Re: [Sblim-devel] Copying huge size files from Provider to client

[Dave H. <hel...@li...>]

One way to implement such a provider would be to handle each log or 
logfile as a separate class, and define various methods against that 
class to retrieve the log as a sequence of records.  Assuming each 
record has a timestamp, you could have a method like 
"getEventsByTimestamp",that would allow you to request records within a 
date range, as Chris suggested.

Similarly, you could assign each record in the log a sequence number or 
recordid, and have a method such as "getLogsByReordID" that would allow 
you to request a number of records starting with a particular record id, 
or using the most recent recordid by default.

You could return your results as a CMPIArray of string objects, with 
each object holding one log record.  Or you could choose to implement 
each record as an instance of a CMPI class (which would allow you to 
store timestamp or other metadata as properties) and return a CMPIArray 
of CMPIInstances.


On 06/23/2014 08:59 PM, Chris Buccella wrote:
> Hi Arun,
>
> SFCB does not provide a method for log file retrieval.
>
> To do it via the CIM interface, you would need to have a provider with
> that functionality. You may be able to use HTTP chunking to reduce the
> size of the buffers SFCB creates when returning data. The chunking
> feature is enabled by default for SFCB, but the request needs to send
> "TE: Trailers" as an HTTP header for SFCB to chunk the response.
>
> Another way to to this (if you have a provider that supports it) is to
> issue an ExecQuery request to return a subset of the log file lines (for
> example, all the log lines for a given date). Alternatively if EQ
> requests aren't supported, issue a lot of GetInstanceRequests for
> RecordInLog (or whatever class is relevant to the log file).
>
>
> -Chris
>
> On 06/20/2014 08:21 PM, Arunkumar S wrote:
>> Hi,
>>
>> I have a CIM Client CLI utility which connects to my SFCB provider to
>> manage the remote system.
>> Now, I have a requirement to copy the log files ( of huge size around
>> 20MB )  from the remote system through CIM.
>>
>> Is there any standard mechanism to achieve this. ?
>> My  managed system have strict memory limitation, due to that, I can't
>> allocate string buffer for 20MB and pass the string as CMPI output
>> value from Provider to CLI client.
>>
>> Thanks,
>> Arun
>>
>
>
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