[jira] [Updated] (IGNITE-17728) Improve data size-related metrics
[ https://issues.apache.org/jira/browse/IGNITE-17728?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Aleksey Plekhanov updated IGNITE-17728: --- Release Note: Fixed calculation of cache group storage size related metrics (PagesFillFactor, TotalUsedPages, TotalAllocatedPages) > Improve data size-related metrics > - > > Key: IGNITE-17728 > URL: https://issues.apache.org/jira/browse/IGNITE-17728 > Project: Ignite > Issue Type: Improvement >Reporter: Aleksandr Polovtcev >Assignee: Aleksandr Polovtcev >Priority: Major > Fix For: 2.15 > > Time Spent: 20m > Remaining Estimate: 0h > > There are several problems with the current approach to metrics related to > pages and sizes occupied by data: > # {{PagesFillFactor}} implementation is strange: though its javadoc is pretty > much useless, one might think that it represents a percentage of bytes > occupied by data in relation to the whole available bytes. However, for some > reason, it is calculated as {{(TotalSpace - FreeSpaceInDataPages) / > TotalSpace}}, i.e. it does not take completely empty pages into account. > # There exists a {{TotalUsedPages}} metric that is only available through > JMX, it does not get registered in the MetricsRegistry. > # There exists {{TotalAllocatedPages}} and {{TotalAllocatedSize}} metrics, > but no {{TotalUsedSize}} metrics. > # It would be helpful to add a metric that calculates bytes, occupied by the > data (even though it can be indirectly computed using the > {{PagesFillFactor}}). -- This message was sent by Atlassian Jira (v8.20.10#820010)
[jira] [Updated] (IGNITE-17728) Improve data size-related metrics
[ https://issues.apache.org/jira/browse/IGNITE-17728?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Aleksandr Polovtcev updated IGNITE-17728: - Ignite Flags: Docs Required,Release Notes Required > Improve data size-related metrics > - > > Key: IGNITE-17728 > URL: https://issues.apache.org/jira/browse/IGNITE-17728 > Project: Ignite > Issue Type: Improvement >Reporter: Aleksandr Polovtcev >Assignee: Aleksandr Polovtcev >Priority: Major > Fix For: 2.15 > > Time Spent: 20m > Remaining Estimate: 0h > > There are several problems with the current approach to metrics related to > pages and sizes occupied by data: > # {{PagesFillFactor}} implementation is strange: though its javadoc is pretty > much useless, one might think that it represents a percentage of bytes > occupied by data in relation to the whole available bytes. However, for some > reason, it is calculated as {{(TotalSpace - FreeSpaceInDataPages) / > TotalSpace}}, i.e. it does not take completely empty pages into account. > # There exists a {{TotalUsedPages}} metric that is only available through > JMX, it does not get registered in the MetricsRegistry. > # There exists {{TotalAllocatedPages}} and {{TotalAllocatedSize}} metrics, > but no {{TotalUsedSize}} metrics. > # It would be helpful to add a metric that calculates bytes, occupied by the > data (even though it can be indirectly computed using the > {{PagesFillFactor}}). -- This message was sent by Atlassian Jira (v8.20.10#820010)
[jira] [Updated] (IGNITE-17728) Improve data size-related metrics
[ https://issues.apache.org/jira/browse/IGNITE-17728?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Ivan Bessonov updated IGNITE-17728: --- Ignite Flags: (was: Docs Required,Release Notes Required) > Improve data size-related metrics > - > > Key: IGNITE-17728 > URL: https://issues.apache.org/jira/browse/IGNITE-17728 > Project: Ignite > Issue Type: Improvement >Reporter: Aleksandr Polovtcev >Assignee: Aleksandr Polovtcev >Priority: Major > Fix For: 2.15 > > Time Spent: 20m > Remaining Estimate: 0h > > There are several problems with the current approach to metrics related to > pages and sizes occupied by data: > # {{PagesFillFactor}} implementation is strange: though its javadoc is pretty > much useless, one might think that it represents a percentage of bytes > occupied by data in relation to the whole available bytes. However, for some > reason, it is calculated as {{(TotalSpace - FreeSpaceInDataPages) / > TotalSpace}}, i.e. it does not take completely empty pages into account. > # There exists a {{TotalUsedPages}} metric that is only available through > JMX, it does not get registered in the MetricsRegistry. > # There exists {{TotalAllocatedPages}} and {{TotalAllocatedSize}} metrics, > but no {{TotalUsedSize}} metrics. > # It would be helpful to add a metric that calculates bytes, occupied by the > data (even though it can be indirectly computed using the > {{PagesFillFactor}}). -- This message was sent by Atlassian Jira (v8.20.10#820010)
[jira] [Updated] (IGNITE-17728) Improve data size-related metrics
[ https://issues.apache.org/jira/browse/IGNITE-17728?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Aleksandr Polovtcev updated IGNITE-17728: - Reviewer: Ivan Bessonov > Improve data size-related metrics > - > > Key: IGNITE-17728 > URL: https://issues.apache.org/jira/browse/IGNITE-17728 > Project: Ignite > Issue Type: Improvement >Reporter: Aleksandr Polovtcev >Assignee: Aleksandr Polovtcev >Priority: Major > Time Spent: 10m > Remaining Estimate: 0h > > There are several problems with the current approach to metrics related to > pages and sizes occupied by data: > # {{PagesFillFactor}} implementation is strange: though its javadoc is pretty > much useless, one might think that it represents a percentage of bytes > occupied by data in relation to the whole available bytes. However, for some > reason, it is calculated as {{(TotalSpace - FreeSpaceInDataPages) / > TotalSpace}}, i.e. it does not take completely empty pages into account. > # There exists a {{TotalUsedPages}} metric that is only available through > JMX, it does not get registered in the MetricsRegistry. > # There exists {{TotalAllocatedPages}} and {{TotalAllocatedSize}} metrics, > but no {{TotalUsedSize}} metrics. > # It would be helpful to add a metric that calculates bytes, occupied by the > data (even though it can be indirectly computed using the > {{PagesFillFactor}}). -- This message was sent by Atlassian Jira (v8.20.10#820010)
[jira] [Updated] (IGNITE-17728) Improve data size-related metrics
[ https://issues.apache.org/jira/browse/IGNITE-17728?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Aleksandr Polovtcev updated IGNITE-17728: - Description: There are several problems with the current approach to metrics related to pages and sizes occupied by data: # {{PagesFillFactor}} implementation is strange: though its javadoc is pretty much useless, one might think that it represents a percentage of bytes occupied by data in relation to the whole available bytes. However, for some reason, it is calculated as {{(TotalSpace - FreeSpaceInDataPages) / TotalSpace}}, i.e. it does not take completely empty pages into account. # There exists a {{TotalUsedPages}} metric that is only available through JMX, it does not get registered in the MetricsRegistry. # There exists {{TotalAllocatedPages}} and {{TotalAllocatedSize}} metrics, but no {{TotalUsedSize}} metrics. # It would be helpful to add a metric that calculates bytes, occupied by the data (even though it can be indirectly computed using the {{PagesFillFactor}}). > Improve data size-related metrics > - > > Key: IGNITE-17728 > URL: https://issues.apache.org/jira/browse/IGNITE-17728 > Project: Ignite > Issue Type: Improvement >Reporter: Aleksandr Polovtcev >Assignee: Aleksandr Polovtcev >Priority: Major > > There are several problems with the current approach to metrics related to > pages and sizes occupied by data: > # {{PagesFillFactor}} implementation is strange: though its javadoc is pretty > much useless, one might think that it represents a percentage of bytes > occupied by data in relation to the whole available bytes. However, for some > reason, it is calculated as {{(TotalSpace - FreeSpaceInDataPages) / > TotalSpace}}, i.e. it does not take completely empty pages into account. > # There exists a {{TotalUsedPages}} metric that is only available through > JMX, it does not get registered in the MetricsRegistry. > # There exists {{TotalAllocatedPages}} and {{TotalAllocatedSize}} metrics, > but no {{TotalUsedSize}} metrics. > # It would be helpful to add a metric that calculates bytes, occupied by the > data (even though it can be indirectly computed using the > {{PagesFillFactor}}). -- This message was sent by Atlassian Jira (v8.20.10#820010)