[jira] [Updated] (CASSANDRA-15196) Unify CommitLogSegment allocaiton to one hierarchy and remove test-cdc testing target
[ https://issues.apache.org/jira/browse/CASSANDRA-15196?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Josh McKenzie updated CASSANDRA-15196: -- Description: {{April 2023 update}} With the push towards stabilizing ASF CI, one of the things we can do is remove the total runtime of our tests. CDC's segment allocation has been in the ecosystem for a long while now and has proven stable in the "CDC enabled on the node but not the table" case, so unifying the hierarchy to a single allocator and removing the test-cdc target in ant should both help us clean up some debt in the codebase and also streamline our CI processes. Along with that, we can take this chance to tidy up some of the internals of the implementation as previously mentioned on this ticket. {{ORIGINAL DESCRIPTION}} Back when I wrote CASSANDRA-8844 and CASSANDRA-12148, a few things about the CommitLog stood out to me that I wasn't in love with. At the time I was much more of the mind of "When in Rome..." regarding some of our structures, our naming, and specifically regarding our penchant for inheritance vs. composition. Turns out I have an itch here I need to scratch. This patch refactors the CommitLog in a few key ways: * Removes inheritence for CommitLogSegmentManagerX, instead has a single CommitLogSegmentManager and a CommitLogSegmentAllocator interface ** This interface is implemented by CommitLogSegmentAllocatorStandard and CommitLogSegmentAllocatorCDC * Renames a few variables and methods within the segment manager to make their purpose and role more clear from names alone (hopefully): ** allocatingFrom --> activeSegment ** allocatingFrom() --> getActiveSegment() ** advanceAllocatingFrom() – switchToNewSegment() ** activeSegments --> unflushedSegments ** getActiveSegments --> getUnflushedSegments() ** awaitAvailableSegment(...) --> awaitSegmentAllocation(...) ** isStillAllocating() --> hasRoom() * Reorders some of the "allocation-and-compare-in-while-loop-decl) to more idiomatic style * Adds some comments to various under-documented methods, mostly related to CDC and timing -As far as we are in the 4.0 testing, I don't expect this to hit pre 4.0. Given it's a relatively minor refactor in well-tested code, doesn't change functionality, and doesn't impact any of the publicly exposed APIs in the CommitLog ecosystem, I'd be comfortable with it going in a minor release after 4.0 is out. But I'm open to alternative viewpoints.- -Have run unit tests locally w/out issue on both regular and cdc-targets; need to get CI against the branch internally for full dtest run and I'll post when it's done. Just wanted to get visibility to this out there in case anyone was curious or thinking of working on the same thing.- [ Link to branch on github|https://github.com/apache/cassandra/compare/trunk...josh-mckenzie:clean_cl_comp] was: Back when I wrote CASSANDRA-8844 and CASSANDRA-12148, a few things about the CommitLog stood out to me that I wasn't in love with. At the time I was much more of the mind of "When in Rome..." regarding some of our structures, our naming, and specifically regarding our penchant for inheritance vs. composition. Turns out I have an itch here I need to scratch. This patch refactors the CommitLog in a few key ways: * Removes inheritence for CommitLogSegmentManagerX, instead has a single CommitLogSegmentManager and a CommitLogSegmentAllocator interface ** This interface is implemented by CommitLogSegmentAllocatorStandard and CommitLogSegmentAllocatorCDC * Renames a few variables and methods within the segment manager to make their purpose and role more clear from names alone (hopefully): ** allocatingFrom --> activeSegment ** allocatingFrom() --> getActiveSegment() ** advanceAllocatingFrom() – switchToNewSegment() ** activeSegments --> unflushedSegments ** getActiveSegments --> getUnflushedSegments() ** awaitAvailableSegment(...) --> awaitSegmentAllocation(...) ** isStillAllocating() --> hasRoom() * Reorders some of the "allocation-and-compare-in-while-loop-decl) to more idiomatic style * Adds some comments to various under-documented methods, mostly related to CDC and timing As far as we are in the 4.0 testing, I don't expect this to hit pre 4.0. Given it's a relatively minor refactor in well-tested code, doesn't change functionality, and doesn't impact any of the publicly exposed APIs in the CommitLog ecosystem, I'd be comfortable with it going in a minor release after 4.0 is out. But I'm open to alternative viewpoints. Have run unit tests locally w/out issue on both regular and cdc-targets; need to get CI against the branch internally for full dtest run and I'll post when it's done. Just wanted to get visibility to this out there in case anyone was curious or thinking of working on the same thing. [ Link to branch on
[jira] [Updated] (CASSANDRA-15196) Unify CommitLogSegment allocaiton to one hierarchy and remove test-cdc testing target
[ https://issues.apache.org/jira/browse/CASSANDRA-15196?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Josh McKenzie updated CASSANDRA-15196: -- Summary: Unify CommitLogSegment allocaiton to one hierarchy and remove test-cdc testing target (was: Refactor inheritance around CommitLogSegment management and allocation) > Unify CommitLogSegment allocaiton to one hierarchy and remove test-cdc > testing target > - > > Key: CASSANDRA-15196 > URL: https://issues.apache.org/jira/browse/CASSANDRA-15196 > Project: Cassandra > Issue Type: Improvement > Components: Local/Commit Log >Reporter: Joshua McKenzie >Assignee: Josh McKenzie >Priority: Normal > > Back when I wrote CASSANDRA-8844 and CASSANDRA-12148, a few things about the > CommitLog stood out to me that I wasn't in love with. At the time I was much > more of the mind of "When in Rome..." regarding some of our structures, our > naming, and specifically regarding our penchant for inheritance vs. > composition. Turns out I have an itch here I need to scratch. > This patch refactors the CommitLog in a few key ways: > * Removes inheritence for CommitLogSegmentManagerX, instead has a single > CommitLogSegmentManager and a CommitLogSegmentAllocator interface > ** This interface is implemented by CommitLogSegmentAllocatorStandard and > CommitLogSegmentAllocatorCDC > * Renames a few variables and methods within the segment manager to make > their purpose and role more clear from names alone (hopefully): > ** allocatingFrom --> activeSegment > ** allocatingFrom() --> getActiveSegment() > ** advanceAllocatingFrom() – switchToNewSegment() > ** activeSegments --> unflushedSegments > ** getActiveSegments --> getUnflushedSegments() > ** awaitAvailableSegment(...) --> awaitSegmentAllocation(...) > ** isStillAllocating() --> hasRoom() > * Reorders some of the "allocation-and-compare-in-while-loop-decl) to more > idiomatic style > * Adds some comments to various under-documented methods, mostly related to > CDC and timing > As far as we are in the 4.0 testing, I don't expect this to hit pre 4.0. > Given it's a relatively minor refactor in well-tested code, doesn't change > functionality, and doesn't impact any of the publicly exposed APIs in the > CommitLog ecosystem, I'd be comfortable with it going in a minor release > after 4.0 is out. But I'm open to alternative viewpoints. > Have run unit tests locally w/out issue on both regular and cdc-targets; need > to get CI against the branch internally for full dtest run and I'll post when > it's done. Just wanted to get visibility to this out there in case anyone was > curious or thinking of working on the same thing. > [ Link to branch on > github|https://github.com/apache/cassandra/compare/trunk...josh-mckenzie:clean_cl_comp] -- This message was sent by Atlassian Jira (v8.20.10#820010) - To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org
[jira] [Updated] (CASSANDRA-15196) Unify CommitLogSegment allocaiton to one hierarchy and remove test-cdc testing target
[ https://issues.apache.org/jira/browse/CASSANDRA-15196?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Josh McKenzie updated CASSANDRA-15196: -- Fix Version/s: 5.x > Unify CommitLogSegment allocaiton to one hierarchy and remove test-cdc > testing target > - > > Key: CASSANDRA-15196 > URL: https://issues.apache.org/jira/browse/CASSANDRA-15196 > Project: Cassandra > Issue Type: Improvement > Components: Local/Commit Log >Reporter: Joshua McKenzie >Assignee: Josh McKenzie >Priority: Normal > Fix For: 5.x > > > Back when I wrote CASSANDRA-8844 and CASSANDRA-12148, a few things about the > CommitLog stood out to me that I wasn't in love with. At the time I was much > more of the mind of "When in Rome..." regarding some of our structures, our > naming, and specifically regarding our penchant for inheritance vs. > composition. Turns out I have an itch here I need to scratch. > This patch refactors the CommitLog in a few key ways: > * Removes inheritence for CommitLogSegmentManagerX, instead has a single > CommitLogSegmentManager and a CommitLogSegmentAllocator interface > ** This interface is implemented by CommitLogSegmentAllocatorStandard and > CommitLogSegmentAllocatorCDC > * Renames a few variables and methods within the segment manager to make > their purpose and role more clear from names alone (hopefully): > ** allocatingFrom --> activeSegment > ** allocatingFrom() --> getActiveSegment() > ** advanceAllocatingFrom() – switchToNewSegment() > ** activeSegments --> unflushedSegments > ** getActiveSegments --> getUnflushedSegments() > ** awaitAvailableSegment(...) --> awaitSegmentAllocation(...) > ** isStillAllocating() --> hasRoom() > * Reorders some of the "allocation-and-compare-in-while-loop-decl) to more > idiomatic style > * Adds some comments to various under-documented methods, mostly related to > CDC and timing > As far as we are in the 4.0 testing, I don't expect this to hit pre 4.0. > Given it's a relatively minor refactor in well-tested code, doesn't change > functionality, and doesn't impact any of the publicly exposed APIs in the > CommitLog ecosystem, I'd be comfortable with it going in a minor release > after 4.0 is out. But I'm open to alternative viewpoints. > Have run unit tests locally w/out issue on both regular and cdc-targets; need > to get CI against the branch internally for full dtest run and I'll post when > it's done. Just wanted to get visibility to this out there in case anyone was > curious or thinking of working on the same thing. > [ Link to branch on > github|https://github.com/apache/cassandra/compare/trunk...josh-mckenzie:clean_cl_comp] -- This message was sent by Atlassian Jira (v8.20.10#820010) - To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org