[jboss-jira] [JBoss JIRA] (ELY-1042) When failed credential store flush to file on the disk then we have inconsistency between credential store in memory and persisted file.

[Hynek Švábek (JIRA)]

Hynek Švábek created ELY-1042:
---------------------------------

             Summary: When failed credential store flush to file on the disk then we have inconsistency between credential store in memory and persisted file.
                 Key: ELY-1042
                 URL: https://issues.jboss.org/browse/ELY-1042
             Project: WildFly Elytron
          Issue Type: Bug
            Reporter: Hynek Švábek
            Assignee: Darran Lofthouse
            Priority: Critical


When failed credential store flush to file on the disk then we have inconsistency between credential store in memory and persisted file.

I expect consistent state, same aliases in memory and persisted on disk.
We must not add new aliases only to memory.

This problem is exported from issue https://issues.jboss.org/browse/JBEAP-6866 
where is noted as secondary problem.

*HOW TO REPRODUCE*
{code}
/subsystem=elytron/credential-store=cs001:add(uri="cr-store://test/cs/credentialstore.jceks?create=true", credential-reference={clear-text=pass123}, relative-to="jboss.server.data.dir")
{code}
{code}
/subsystem=elytron/credential-store=cs001/alias=alias001:add(secret-value=secretvalue)
{code}
Now is credentialstore.jceks file persisted on disk here *JBOSS_HOME/standalone/data/cs*
Please remove write permission for folder "cs"
{code}
chmod g-w  cs
chmod u-w  cs
{code}
Try add another entry to credential store
/subsystem=elytron/credential-store=cs001/alias=alias002:add(secret-value=secretvalue)
{
    "outcome" => "failed",
    "failure-description" => "WFLYELY00009: Unable to complete operation. 'ELY09525: Unable to flush credential store to storage'",
    "rolled-back" => true
}
And you get error message as above.
Now you list all aliases in credential store:
{code}
/subsystem=elytron/credential-store=cs001:read-children-names(child-type=alias)
{
    "outcome" => "success",
    "result" => [
        "alias001",
        "alias002"
    ]
}
{code}
There is non persisted "alias002" too.

*Now we check aliases in persisted file:*
{code}
reload
{code}
There isn't any alias "alias002" after reload.
{code}
/subsystem=elytron/credential-store=cs001:read-children-names(child-type=alias)
{
    "outcome" => "success",
    "result" => ["alias001"]
}
{code}





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