[jira] [Assigned] (IGNITE-5375) New PersistentStoreMetrics, MemoryMetrics interface improvements
[
https://issues.apache.org/jira/browse/IGNITE-5375?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Alexey Goncharuk reassigned IGNITE-5375:
Assignee: Alexey Goncharuk (was: Sergey Chugunov)
> New PersistentStoreMetrics, MemoryMetrics interface improvements
>
>
> Key: IGNITE-5375
> URL: https://issues.apache.org/jira/browse/IGNITE-5375
> Project: Ignite
> Issue Type: Task
> Components: persistence
>Reporter: Sergey Chugunov
>Assignee: Alexey Goncharuk
> Fix For: 2.1
>
>
> h2. Notes
> Original discussions on dev list: on [Persistent Store
> Metrics|http://apache-ignite-developers.2346864.n4.nabble.com/Persistent-Distributed-Store-Metrics-tt17730.html];
> on a new way of thinking of Memory Policies as [virtual
> memory|http://apache-ignite-developers.2346864.n4.nabble.com/DISCUSS-Ignite-memory-gt-virtual-memory-tt18291.html].
> Existing {{MemoryMetrics}} interface will be enhanced with additional methods
> for monitoring persistence activities (only new methods are listed):
> {code}
> public interface MemoryMetrics {
> ...
> public long getDirtyPages();
> public float getPagesReplaceRate();
> public long getPhysicalMemoryPages();
> }
> {code}
> Proposed interface for Persistent Store Metrics:
> {code}
> public interface PersistentStoreMetrics {
> public float getWalLoggingRate();
> public int getWalArchiveSegments();
> public float getWalFsyncTime();
> public float getCheckpointingTime();
> public float getCheckpointingFsyncTime();
> public long getCheckpointingTotalPagesNumber();
> public long[] getCheckpointingPagesByTypeNumber();
> public long getCheckpointingCopiedOnWritePagesNumber();
> }
> {code}
> h2. Acceptance Criteria
> # MemoryMetrics interface is expanded with new methods
> # Persistent Store Metrics are implemented according to the proposed interface
> # Semantics of existing method {{MemoryMetrics::getTotalAllocatedPages}} is
> changed to return not only pages residing in memory, but total amount of
> paged including ones on disk.
> For amount of pages in RAM new method {{getPhysicalMemoryPages}} is added.
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[jira] [Assigned] (IGNITE-5375) New PersistentStoreMetrics, MemoryMetrics interface improvements
[
https://issues.apache.org/jira/browse/IGNITE-5375?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Sergey Chugunov reassigned IGNITE-5375:
---
Assignee: Sergey Chugunov
> New PersistentStoreMetrics, MemoryMetrics interface improvements
>
>
> Key: IGNITE-5375
> URL: https://issues.apache.org/jira/browse/IGNITE-5375
> Project: Ignite
> Issue Type: Task
> Components: persistence
>Reporter: Sergey Chugunov
>Assignee: Sergey Chugunov
> Fix For: 2.1
>
>
> h2. Notes
> Original discussions on dev list: on [Persistent Store
> Metrics|http://apache-ignite-developers.2346864.n4.nabble.com/Persistent-Distributed-Store-Metrics-tt17730.html];
> on a new way of thinking of Memory Policies as [virtual
> memory|http://apache-ignite-developers.2346864.n4.nabble.com/DISCUSS-Ignite-memory-gt-virtual-memory-tt18291.html].
> Existing {{MemoryMetrics}} interface will be enhanced with additional methods
> for monitoring persistence activities (only new methods are listed):
> {code}
> public interface MemoryMetrics {
> ...
> public long getDirtyPages();
> public float getPagesReplaceRate();
> public long getPhysicalMemoryPages();
> }
> {code}
> Proposed interface for Persistent Store Metrics:
> {code}
> public interface PersistentStoreMetrics {
> public float getWalLoggingRate();
> public int getWalArchiveSegments();
> public float getWalFsyncTime();
> public float getCheckpointingTime();
> public float getCheckpointingFsyncTime();
> public long getCheckpointingTotalPagesNumber();
> public long[] getCheckpointingPagesByTypeNumber();
> public long getCheckpointingCopiedOnWritePagesNumber();
> }
> {code}
> h2. Acceptance Criteria
> # MemoryMetrics interface is expanded with new methods
> # Persistent Store Metrics are implemented according to the proposed interface
> # Semantics of existing method {{MemoryMetrics::getTotalAllocatedPages}} is
> changed to return not only pages residing in memory, but total amount of
> paged including ones on disk.
> For amount of pages in RAM new method {{getPhysicalMemoryPages}} is added.
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