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From "Maxim Muzafarov (Jira)" <j...@apache.org>
Subject [jira] [Updated] (IGNITE-6894) Hanged Tx monitoring
Date Thu, 03 Oct 2019 10:19:00 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-6894?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Maxim Muzafarov updated IGNITE-6894:
------------------------------------
    Fix Version/s:     (was: 2.8)

> Hanged Tx monitoring
> --------------------
>
>                 Key: IGNITE-6894
>                 URL: https://issues.apache.org/jira/browse/IGNITE-6894
>             Project: Ignite
>          Issue Type: Improvement
>            Reporter: Anton Vinogradov
>            Assignee: Dmitriy Sorokin
>            Priority: Major
>              Labels: iep-7
>
> Hanging Transactions not Related to Deadlock
> Description
>  This situation can occur if user explicitly markups the transaction (esp Pessimistic
Repeatable Read) and, for example, calls remote service (which may be unresponsive) after
acquiring some locks. All other transactions depending on the same keys will hang.
> Detection and Solution
>  This most likely cannot be resolved automatically other than rollback TX by timeout
and release all the locks acquired so far. Also such TXs can be rolled back from Web Console
as described above.
>  If transaction has been rolled back on timeout or via UI then any further action in
the transaction, e.g. lock acquisition or commit attempt should throw exception.
> Report
> Management tools (eg. Web Console) should provide ability to rollback any transaction
via UI.
>  Long running transaction should be reported to logs. Log record should contain: near
nodes, transaction IDs, cache names, keys (limited to several tens of), etc ( ?).
> Also there should be a screen in Web Console that will list all ongoing transactions
in the cluster including the info as above.



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