Hi Alex, I agree that we can't move all metrics to ignite.metrics() and SPI metrics is a good example here. I propose to move at least dataRegionMetrics, dataStorageMetrics to it, since the main API class is not a good place for such things. If we will decide to choose option 1 from my first message, then, I will also add QueryDetailMetrics for cacheless queries to this new class.
пн, 20 авг. 2018 г. в 23:28, Alex Plehanov <plehanov.a...@gmail.com>: > Hi Evgeny, > > Do you propose to move into IgniteMetrics absolutely all Ignite metrics or > just dataRegionMetrics, dataStorageMetrics and queryDetailMetrics? I think > you can't move all metrics into one place. Pluggable components and > different SPI implementations may have their own metric sets, and perhaps > it's not such a good idea to try to fit them in one common fixed interface. > > 2018-08-20 18:14 GMT+03:00 Evgenii Zhuravlev <e.zhuravlev...@gmail.com>: > > > As for now, metrics are accumulated for cache only when the query is run > > directly over this cache, for example, using ignite.cache("Some > > cache").sqlFieldsQuery("select ... from .."). When a query is started > using > > other APIs, it doesn't detect cache, to which this table belongs and > > doesn't save any metrics. > > > > > > > > 2018-08-17 16:44 GMT+03:00 Vladimir Ozerov <voze...@gridgain.com>: > > > > > Query is not executed on specific cache. It is executed on many caches. > > > > > > On Fri, Aug 17, 2018 at 6:10 AM Dmitriy Setrakyan < > dsetrak...@apache.org > > > > > > wrote: > > > > > > > But internally the SQL query still runs on some cache, no? What > happens > > > to > > > > the metrics accumulated on that cache? > > > > > > > > D. > > > > > > > > On Thu, Aug 16, 2018, 18:51 Alexey Kuznetsov <akuznet...@apache.org> > > > > wrote: > > > > > > > > > Dima, > > > > > > > > > > "cache-less" means that SQL executed directly on SQL engine. > > > > > > > > > > In previous version of Ignite we execute queries via cache: > > > > > > > > > > ignite.cache("Some cache").sqlFieldsQuery("select ... from ..") > > > > > > > > > > In current Ignite we can execute query directly without using cache > > as > > > > > "gateway". > > > > > > > > > > And if we execute query directly, metrics not update. > > > > > > > > > > > > > > > > > > > > > > > > > On Fri, Aug 17, 2018 at 4:21 AM Dmitriy Setrakyan < > > > dsetrak...@apache.org > > > > > > > > > > wrote: > > > > > > > > > > > Evgeny, what is a "cache-less" SQL query? > > > > > > > > > > > > D. > > > > > > > > > > > > On Thu, Aug 16, 2018 at 6:36 AM, Evgenii Zhuravlev < > > > > > > e.zhuravlev...@gmail.com > > > > > > > wrote: > > > > > > > > > > > > > Hi Igniters, > > > > > > > > > > > > > > I've started to work on adding QueryDetailMetrics for > cache-less > > > SQL > > > > > > > queries(issue > https://issues.apache.org/jira/browse/IGNITE-6677) > > > and > > > > > > found > > > > > > > that it's required to change API. I don't think that adding > > methods > > > > > like > > > > > > > queryDetailMetrics, resetQueryDetailMetrics, as in IgniteCache > to > > > > > Ignite > > > > > > > class is a good idea. So, I see 2 possible solutions here: > > > > > > > > > > > > > > 1. Create IgniteMetrics(ignite.metrics()) and move metrics from > > > > > > > Ignite(like dataRegionMetrics and dataStorageMetrics) and add a > > new > > > > > > > metric "queryDetailMetrics" to it. Of course, old methods will > be > > > > > > > deprecated. > > > > > > > > > > > > > > 2. Finally create Ignite.sql() API, which was already discussed > > > here: > > > > > > > http://apache-ignite-developers.2346864.n4.nabble. > > > > > > > com/Rethink-native-SQL-API-in-Apache-Ignite-2-0-td14335.html > > > > > > > and place "queryDetailMetrics" metric there. Here is the ticket > > for > > > > > this > > > > > > > change: https://issues.apache.org/jira/browse/IGNITE-4701 > > > > > > > > > > > > > > Personally, I think that the second solution looks better in > this > > > > case, > > > > > > > however, moving dataRegionMetrics and dataStorageMetrics to > > > > > > > ignite.matrics() is still a good idea - IMO, Ignite class is > not > > > the > > > > > > right > > > > > > > place for them - we shouldn't change our main API class so > often. > > > > > > > > > > > > > > What do you think? > > > > > > > > > > > > > > Thank you, > > > > > > > Evgenii > > > > > > > > > > > > > > > > > > > -- > > > > > > Alexey Kuznetsov > > > > > > > > > > > > > > > > > > > > > > > > > > >