Re: loadCache is not returning the same number of records for every restart of the server

[Denis Mekhanikov <dm...@gmail.com>]

How do you check number of records in the cache and at what moment?
Maybe your method of measurement doesn't give you actual results?

It is also possible, that page eviction
<https://apacheignite.readme.io/docs/evictions#section-off-heap-memory> is
kicking in and removes your data, since there is no memory left.

Denis

чт, 26 июл. 2018 г. в 4:53, okiesong <yj...@gmail.com>:

> Hi, caheName.loadCache(null, "select * from sampledata") is not returning a
> correct number of records every time, the record is fetched from Cassandra
> table.
>
> My code generally looks like this;
> caheName.loadCache(null, "select * from sampledata")
>
> SqlFieldsQuery sqlQuery = new SqlFieldsQuery("select count(*) from
> sampledata")  // this is under the assumption that our POJO class is also
> called sampledata.
>
> cacheName.query(sqlQuery);
>
> But above code works for small sets of data giving me the same number of
> records counts, but with large sets of data(ex. 1,000,000), it is not
> fetching all records, it gives me around 950,000-970,000 records although I
> have allocated 10GB for memory after looking at
> https://apacheignite.readme.io/docs/memory-configuration
>
> But it was still no use.
>
> I have also taken a took a look at overwrite for DataStreamer, but it seems
> with DataStreamer, I cannot call "select * from sampledata" which is from
> Cassandra table that is connected to it, can someone give me some sample of
> loading lots of data from Cassandra server to local node (instance) without
> losing any records?
>
> Thanks in advance!
>
>
>
>
>
> --
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>