Here is a ticket for the improvement: https://issues.apache.org/jira/browse/IGNITE-6804
— Denis > On Oct 31, 2017, at 3:55 AM, Dmitry Pavlov <dpavlov....@gmail.com> wrote: > > I agree with Denis, if we don't have such warning we should continiously warn > users in wiki pages/blogs/presentations. It is simpler to warn from code. > > What do you think if we will issue warning only if size > 1. HashMap with 1 > item will not cause deadlock. Moreover where can be some custom singleton Map > provided by user. > > Sincerely, > Dmitriy Pavlov > > вт, 31 окт. 2017 г. в 7:18, Dmitriy Setrakyan <dsetrak...@apache.org > <mailto:dsetrak...@apache.org>>: > Denis, > > We should definitely print out a thorough warning if HashMap is passed into > a bulk method (instead of SortedMap). However, we should make sure that we > only print that warning once and not ever time the API is called. > > Can you please file a ticket for 2.4? > > D. > > On Thu, Oct 26, 2017 at 11:05 AM, Denis Magda <dma...@apache.org > <mailto:dma...@apache.org>> wrote: > > > + dev list > > > > Igniters, that’s a relevant point below. Newcomers to Ignite tend to > > stumble on deadlocks simply because the keys are passed in an unordered > > HashMap. Propose to do the following: > > - update bulk operations Java doc. > > - print out a warning if a HashMap is used and its exceeds one element. > > > > Thoughts? > > > > — > > Denis > > > > > On Oct 21, 2017, at 6:16 PM, dark <ekdxhrl0...@gmail.com > > > <mailto:ekdxhrl0...@gmail.com>> wrote: > > > > > > Many people seem to be more likely to send Cache entries in bulk via a > > > HashMap. > > > How do you expose a warning statement by checking if the TreeMap is > > putAll > > > inside the code? > > > > > > > > > > > > > > > -- > > > Sent from: http://apache-ignite-users.70518.x6.nabble.com/ > > > <http://apache-ignite-users.70518.x6.nabble.com/> > > > >