Hi!
You need to be careful, with copyOnRead disabled, any local read can
return a "real" copy of the object and you can cause pretty weird bugs
if you modify that object, so be careful with that or best is to only
use it for readonly cases.
If you see that much performance improvement I woul
I have disabled copyonread and the time taken to getAll() reduced to 1/3.
Earlier it was 300 ms on 10k entries and now it is 100ms. Is disabling
copyonread is fine ???
--
Sent from: http://apache-ignite-users.70518.x6.nabble.com/
Hello!
Did you try to profile it? What is taking the time?
Regards,
--
Ilya Kasnacheev
ср, 27 нояб. 2019 г. в 18:59, Hemambara :
> Thank you. I am not getting this error now. But not sure if something wrong
> with config. When I call getAll(all keys) on near cache, then the
> performance is w
Thank you. I am not getting this error now. But not sure if something wrong
with config. When I call getAll(all keys) on near cache, then the
performance is worse than regular cache. If regular cache getAll() is taking
100ms then near cache getAll() is taking 330 ms. Its almost 3 times. I am
expect
This happens because you created a cache without a near configuration first
then tried to create it again with a near config.
for example:
start a server node
then do as follows:
NearCacheConfiguration nearCfg = new
NearCacheConfiguration<>();
IgniteCache cache1 = ignite.getO
I followed the below post
http://apache-ignite-users.70518.x6.nabble.com/Failed-to-start-near-cache-a-cache-with-the-same-name-without-near-cache-is-already-started-td18322.html
but it did not solve my problem, hence requesting for help.
I tried two options
a) Start ignite with below xml config
Hi,
Near caches are transparent for you - there is no user API to get reference
to or work with near caches. The purpose of a near cache is to "cache the
cache", that is to be a local cache for a distributed cache. Ignite
transparently fills near cache with the most recent data when you work with
Hi Alex,
Thank you for your reply.
But I am not quite clear about how to create near cache for TableA and
TableB?
Thanks,
Sherry
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Sent from: http://apache-ignite-users.70518.x6.nabble.com/
Hi,
Near caches are configured per cache and not per query. You cannot start
different near caches for the same distributed cache. Start separate near
caches for TableA and TableB.
query(sql).getAll()...
"
And if I run the second method, it will show error logs like
"javax.cache.CacheException: class org.apache.ignite.IgniteCheckedException:
Failed to start near cache (a cache with the same name without near cache is
already started)"
And also everytime if i run cross caches queries,
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