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Posted to issues@ignite.apache.org by "Yakov Zhdanov (JIRA)" <ji...@apache.org> on 2016/11/23 05:43:58 UTC
[jira] [Updated] (IGNITE-4265) Need to revisit compute grid
checkpoints
[ https://issues.apache.org/jira/browse/IGNITE-4265?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Yakov Zhdanov updated IGNITE-4265:
----------------------------------
Description:
I. Shared fs checkpoint SPI seems to be totally wrong
Problems spotted in code
# Blocking IO API
# No locks or synchronization
Please see GridSharedFsCheckpointSpiMultiThreadedSelfTest
I would think of removing shared FS checkpoints and move to distributed cache.
II. Having the above I would do:
# Revisit checkpoints SPI/manager. I would probably replace it with checkoints processor using distributed cache(s)
# distributed caches can be configured in configuration or on the fly using templates. This needs to be elaborated further.
# org.apache.ignite.internal.managers.checkpoint.GridCheckpointManager#onSessionEnd seems to be handy for clean up and can be implemented with cache queries - session ID should be added to each entry
was:
I. Shared fs checkpoint SPI seems to be totally wrong
Problems spotted in code
# Blocking IO API
# No locks or synchronization
Please see GridSharedFsCheckpointSpiMultiThreadedSelfTest
I would think of removing shared FS checkpoints and move to distributed cache.
II. Having the above I would do:
# Revisit checkpoints SPI/manager. I would probably replace it with checkoints processor using distributed cache(s)
# distributed caches can be configured in configuration or on the fly using templates. This needs to be elaborated further.
# org.apache.ignite.internal.managers.checkpoint.GridCheckpointManager#onSessionEnd seems to be handy for clean up and can be implemented with cache queries - session ID should be added to each entry
#
> Need to revisit compute grid checkpoints
> ----------------------------------------
>
> Key: IGNITE-4265
> URL: https://issues.apache.org/jira/browse/IGNITE-4265
> Project: Ignite
> Issue Type: Task
> Reporter: Yakov Zhdanov
> Priority: Minor
>
> I. Shared fs checkpoint SPI seems to be totally wrong
> Problems spotted in code
> # Blocking IO API
> # No locks or synchronization
> Please see GridSharedFsCheckpointSpiMultiThreadedSelfTest
> I would think of removing shared FS checkpoints and move to distributed cache.
> II. Having the above I would do:
> # Revisit checkpoints SPI/manager. I would probably replace it with checkoints processor using distributed cache(s)
> # distributed caches can be configured in configuration or on the fly using templates. This needs to be elaborated further.
> # org.apache.ignite.internal.managers.checkpoint.GridCheckpointManager#onSessionEnd seems to be handy for clean up and can be implemented with cache queries - session ID should be added to each entry
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