[infinispan-issues] [JBoss JIRA] (ISPN-3903) Transaction Code Optimizations

[Pedro Ruivo (JIRA)]

Pedro Ruivo created ISPN-3903:
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             Summary: Transaction Code Optimizations
                 Key: ISPN-3903
                 URL: https://issues.jboss.org/browse/ISPN-3903
             Project: Infinispan
          Issue Type: Enhancement
          Components: Transactions
    Affects Versions: 6.0.1.Final
            Reporter: Pedro Ruivo
            Assignee: Pedro Ruivo
             Fix For: 7.0.0.Alpha1


Currently, I found the following problems (so far, last update 18/01, 17h30, fix in progress):

* the LocalTxInvocationContext is creating an empty map every time a new instance is created. It originates >10GB of data in 5min. It can use the Collections.emptyMap()

* TransactionCoordinator is creating LocalTxInvocationContext twice when commit. First, prepare() method creates LocalTxInvocationContext and if it is read only, it invokes commitInternal (that will create a new LocalTxInvocationContext). The same for commit() method when the transaction is one phase. commitInternal() can reuse the LocalTxInvocationContext since they are stateless (and they already have a reference for the LocalTransaction).

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