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From Raul Kripalani <ra...@apache.org>
Subject Re: JMS Data Streamer: Not writing to data to cache when message received by Streamer
Date Sun, 20 Mar 2016 10:12:59 GMT
Auto flush / flushing is a characteristic of all streamers, that's why you
won't find it explained explicitly in the docs of specific streamers, but
in the general streamer one.

If I understand correctly, flushing controls when the changes in the
streamer will be sent to the grid (can someone confirm?).

Autoflush is disabled by default, i.e. meaning that you must call flush()
manually on the streamer for the writes to be visible in the cache.

To avoid that, and if your use case permits it, autoflush will flush the
buffered entries periodically.

When in doubt, you can check the unit tests for the component you're
working with.

On 20 Mar 2016 02:02, "techbysample" <turik@netmille.com> wrote:

> That worked.  Thank you very much.
> Would you please elaborate on how property is used?
> Does it imply that by default autoflushFrequency is disabled and
> DataStreamer will NOT
> write data to cache unless explicitly set?
> I basically modeled my JMSStreamer after the following documentation here:
> https://apacheignite.readme.io/docs/jms-data-streamer
> The docs do not explicitly mention setting 'autoflushFrequency'..
> Here is definition from Apache Ignite docs: -
> dataStreamer.autoFlushFrequency:
> "Sets automatic flush frequency. Essentially, this is the time after which
> the streamer will make an attempt to submit all data added so far to remote
> nodes. Note that there is no guarantee that data will be delivered after
> this concrete attempt (e.g., it can fail when topology is changing), but it
> won't be lost anyway.
> If set to 0, automatic flush is disabled.
> Automatic flush is disabled by default (default value is 0)."
> Please advise.
> Thank you
> --
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