Sergi, Referring to your response and the source code I should say that, in fact, the documentation has to state the following:
“To place both data and indexes in off heap memory CacheConfiguration.setMemoryMode has to be set to one of off heap modes and CacheConfiguration.setOffHeapMaxMemory has to be set to a value different from -1 (disabled). If at least one of these conditions is not met then both data and indexes will be located in on heap memory” Is this statement correct? — Denis > On Nov 3, 2016, at 2:53 AM, Sergi Vladykin <sergi.vlady...@gmail.com> wrote: > > Prachi, > > In [2] we refer to the same CacheConfiguration.setOffHeapMaxMemory > property, so [1] is correct. If setOffHeapMaxMemory is disabled (set to > -1), then indexes will never be stored offheap, regardless of setMemoryMode > setting. > > Probably we have to change [2] to make it clear, that it is about > setOffHeapMaxMemory > but not about setMemoryMode. > > Sergi > > > 2016-11-03 2:25 GMT+03:00 Prachi Garg <pg...@gridgain.com>: > >> Engineers, >> >> I was going through documentation for Off-Heap SQL Indexes >> <https://apacheignite.readme.io/docs/sql-queries#off-heap-sql-indexes> and >> found two contradicting statements- >> >> According to [1] - " `CacheConfiguration.setOffHeapMaxMemory` is the only >> property to enable or disable off-heap indexing. While >> CacheConfiguration.setMemoryMode is used to configure off-heap memory >> <https://apacheignite.readme.io/v1.7/docs/off-heap-memory>, it does not >> have any effect on indexing." >> >> According to [2] - "Note that when off-heap memory is configured, Ignite >> will store query indexes off-heap as well." >> >> >> Which one is true? >> >> [1] - https://apacheignite.readme.io/docs/sql-queries#off-heap-sql-indexes >> >> [2] - http://apacheignite.gridgain.org/docs/off-heap-memory >> >> >> Thanks, >> >> -Prachi >>
