Hi; I added @AffinityKeyMapped to the fields in the model generated by web console. But I also noticed that when I load the data using the load commands generated from the web console, the data is not collocated and the query will return reduced data. Do you have any hints? BR
> On Dec 11, 2017, at 3:12 PM, Nikolai Tikhonov <[email protected]> wrote: > > It depends from your data model and can't be enabled via one property. > Please, look at the following documentation pages: > > https://apacheignite.readme.io/docs/affinity-collocation > <https://apacheignite.readme.io/docs/affinity-collocation> > https://apacheignite-sql.readme.io/docs/distributed-joins#collocated-joins > <https://apacheignite-sql.readme.io/docs/distributed-joins#collocated-joins> > > On Mon, Dec 11, 2017 at 4:02 PM, Ahmad Al-Masry <[email protected] > <mailto:[email protected]>> wrote: > How can I enable this on the server configuration XML? > BR > > >> On Dec 11, 2017, at 2:31 PM, Nikolai Tikhonov <[email protected] >> <mailto:[email protected]>> wrote: >> >> Hi, >> >> Strongly recommend to care about collocation of your data (as above >> suggested by Vlad) instead of enable DistributedJoins flag. The performance >> of this type of joins is worse then the performance of the affinity >> collocation based joins due to the fact that there will be much more network >> round-trips and data movement between the nodes to fulfill a query [1]. >> >> 1. >> https://apacheignite-sql.readme.io/docs/distributed-joins#non-collocated-joins >> >> <https://apacheignite-sql.readme.io/docs/distributed-joins#non-collocated-joins> >> >> >> On Mon, Dec 11, 2017 at 3:03 PM, Ahmad Al-Masry <[email protected] >> <mailto:[email protected]>> wrote: >> Hi; >> When I enabled the distributed JOIN, get the following Exception: >> >> java.sql.SQLException: javax.cache.CacheException: Failed to prepare >> distributed join query: join condition does not use index >> [joinedCache=PositionTypeCache >> >> Should I remove the indexes before doing distributed joins? >> BR >> >> >>> On Dec 11, 2017, at 10:43 AM, Vladislav Pyatkov <[email protected] >>> <mailto:[email protected]>> wrote: >>> >>> Hi, >>> >>> When you use JOIN, you should to enable DistributedJoins flag[1], or tack >>> care about collocated of each joined entry[2]. >>> >>> [1]: org.apache.ignite.cache.query.SqlFieldsQuery#setDistributedJoins >>> [2]: https://apacheignite.readme.io/docs >>> <https://apacheignite.readme.io/docs> >>> >>> On Mon, Dec 11, 2017 at 11:36 AM, Ahmad Al-Masry <[email protected] >>> <mailto:[email protected]>> wrote: >>> Dears; >>> The when I execute the attached query on Mysql data source or on a single >>> node ignite, it returns about 25k records. >>> When multiple node, it gives me about 3500 records. >>> The caches are atomic and partitioned. >>> Any suggestions. >>> BR >>> >>> -- >>> >>> >>> >>> This email, and the content it contains, are intended only for the persons >>> or entities to which it is addressed. It may contain sensitive, >>> confidential and/or privileged material. Any review, retransmission, >>> dissemination or other use of, or taking of any action in reliance upon, >>> this information by persons or entities other than the intended >>> recipient(s) is prohibited. If you received this email in error, please >>> immediately contact security[at]harri[dot]com and delete it from any device >>> or system on which it may be stored. >>> >>> >>> >>> -- >>> Vladislav Pyatkov >> >> >> >> This email, and the content it contains, are intended only for the persons >> or entities to which it is addressed. It may contain sensitive, confidential >> and/or privileged material. Any review, retransmission, dissemination or >> other use of, or taking of any action in reliance upon, this information by >> persons or entities other than the intended recipient(s) is prohibited. If >> you received this email in error, please immediately contact >> security[at]harri[dot]com and delete it from any device or system on which >> it may be stored. >> > > > > This email, and the content it contains, are intended only for the persons or > entities to which it is addressed. It may contain sensitive, confidential > and/or privileged material. Any review, retransmission, dissemination or > other use of, or taking of any action in reliance upon, this information by > persons or entities other than the intended recipient(s) is prohibited. If > you received this email in error, please immediately contact > security[at]harri[dot]com and delete it from any device or system on which it > may be stored. > -- This email, and the content it contains, are intended only for the persons or entities to which it is addressed. It may contain sensitive, confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient(s) is prohibited. If you received this email in error, please immediately contact security[at]harri[dot]com and delete it from any device or system on which it may be stored.
