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Date: Tue, 23 Feb 2016 01:24:18 +0000 (UTC)
From: "Valentin Kulichenko (JIRA)" <jira@apache.org>
To: issues@ignite.apache.org
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Subject: [jira] [Created] (IGNITE-2708) Need to validate that SPIs are
 started only once
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Valentin Kulichenko created IGNITE-2708:
-------------------------------------------

             Summary: Need to validate that SPIs are started only once
                 Key: IGNITE-2708
                 URL: https://issues.apache.org/jira/browse/IGNITE-2708
             Project: Ignite
          Issue Type: Improvement
          Components: general
            Reporter: Valentin Kulichenko


User forum discussion: http://apache-ignite-users.70518.x6.nabble.com/Ignite-instance-hangs-during-restart-in-client-mode-td3101.html

If one uses the same instance of {{IgniteConfiguration}} more than once, it doesn't work because SPIs have lifecycle and can be started only once. Currently this causes hang on start which is counterintuitive.

We should add a validation step to {{GridSpiAdapter}} that will check that the SPI was never started before. Its {{spiStart()}} method should set some flag there or throw exception if it has already been set. All internal SPI implementations should be changed to call {{super.spiStart()}} as first statement.


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