Re: Native persistence enabled: Loading the same data again takes longer than initially

[Maxim Muzafarov <mm...@apache.org>]

Vincent,

What type of IgniteDataStreamer you are using? allowOverwrite == true/false?
Are you loading data to SQL table or just a regular cache? Are there
any indexes exists?

Yes, disabling WAL means you have a risk of losing data while it still
remains disabled. Then the initial loading completes you have to
re-enable WAL logging. Disabling WAL can significantly increase the
loading speed.

On Mon, 30 Nov 2020 at 17:46, VincentCE <ve...@cephei.com> wrote:
>
> Hi Maxim!
>
> we are generally using IgniteDataStreamers for cache loadings. Regarding
> disabling wal: We already thought about that during initial loading but our
> business business flow requires several further loadings and at least during
> the second load we cannot switch it off anyway. Otherwise according to my
> understanding we would risk losing all data e.g. due to a node restart if
> wal is turned.
>
>
>
> --
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