[Core] investigate HZ 3.9

dsukhoroslov / bagri

XML/Document DB on top of distributed cache

Apache License 2.0

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[Core] investigate HZ 3.9 #122

Closed dsukhoroslov closed 6 years ago

dsukhoroslov commented 6 years ago

memory consumption inreased in comparison with HZ 3.8.6
fix for BaseIndexStore is still not ported to HZ 3.9

pveentjer commented 6 years ago

Can you give some more information about the memory consumption? So which data-structure, e.g. IMap? What was the configuration? What type of key/values and how many? What was the old and what is the new memory consumption?

dsukhoroslov commented 6 years ago

Hi @pveentjer, see the heap screens below. I just start cache server, no data in it yet. This one for HZ 3.8.7:

hz_3 8 7

This one for HZ 3.9:

hz_3 9

The drops in consumption above caused by manual GC. We see significant increase in memory consumption on empty server, right? When server is loaded with data (just 20000 documents, for tests) then it looks ok:

hz_3 8 7_20000

hz_3 9_20000

dsukhoroslov commented 6 years ago

moving to HZ 3.9.3 in Bagri 1.2.1 in order to improve range queries