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https://issues.apache.org/jira/browse/IGNITE-1553?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alexey Kuznetsov updated IGNITE-1553:
-------------------------------------
Description:
Currently entries are enlisted in a database transaction after grid transaction
is in PREPARED state. We can do this in parallel in the following fashion
(pseudo-code):
{code:java}
fut = tx.prepareAsync();
db.write(tx.writes());
fut.get();
try {
db.commit();
tx.commit();
}
catch (Exception e) {
tx.rollback();
}
{code}
If this approach is applied, we should be able to reduce latency for
transactions when write-through is enabled.
store prepare works on primary nodes only
was:
Currently entries are enlisted in a database transaction after grid transaction
is in PREPARED state. We can do this in parallel in the following fashion
(pseudo-code):
{code}
fut = tx.prepareAsync();
db.write(tx.writes());
fut.get();
try {
db.commit();
tx.commit();
}
catch (Exception e) {
tx.rollback();
}
{code}
If this approach is applied, we should be able to reduce latency for
transactions when write-through is enabled.
> Optimize transaction prepare step when store is enabled
> -------------------------------------------------------
>
> Key: IGNITE-1553
> URL: https://issues.apache.org/jira/browse/IGNITE-1553
> Project: Ignite
> Issue Type: Improvement
> Components: cache
> Affects Versions: ignite-1.4
> Reporter: Alexey Goncharuk
> Assignee: Alexey Kuznetsov
> Priority: Major
> Labels: important
> Fix For: 2.5
>
>
> Currently entries are enlisted in a database transaction after grid
> transaction is in PREPARED state. We can do this in parallel in the following
> fashion (pseudo-code):
> {code:java}
> fut = tx.prepareAsync();
> db.write(tx.writes());
> fut.get();
> try {
> db.commit();
>
> tx.commit();
> }
> catch (Exception e) {
> tx.rollback();
> }
> {code}
> If this approach is applied, we should be able to reduce latency for
> transactions when write-through is enabled.
>
> store prepare works on primary nodes only
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