[
https://issues.apache.org/jira/browse/HIVE-21697?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16842806#comment-16842806
]
Hive QA commented on HIVE-21697:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12969048/HIVE-21697.4.patch
{color:green}SUCCESS:{color} +1 due to 2 test(s) being added or modified.
{color:red}ERROR:{color} -1 due to 1 failed/errored test(s), 16052 tests
executed
*Failed tests:*
{noformat}
org.apache.hive.hcatalog.mapreduce.TestHCatPartitioned.testHCatPartitionedTable[1]
(batchId=211)
{noformat}
Test results:
https://builds.apache.org/job/PreCommit-HIVE-Build/17245/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/17245/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-17245/
Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.YetusPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
Tests exited with: TestsFailedException: 1 tests failed
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12969048 - PreCommit-HIVE-Build
> Remove periodical full refresh in HMS cache
> -------------------------------------------
>
> Key: HIVE-21697
> URL: https://issues.apache.org/jira/browse/HIVE-21697
> Project: Hive
> Issue Type: Improvement
> Components: Standalone Metastore
> Reporter: Daniel Dai
> Assignee: Daniel Dai
> Priority: Major
> Attachments: HIVE-21697.1.patch, HIVE-21697.2.patch,
> HIVE-21697.3.patch, HIVE-21697.4.patch
>
>
> In HIVE-18661, we added periodical notification based refresh in HMS cache.
> We shall remove periodical full refresh to simplify the code as it will no
> longer be used. In the mean time, we introduced mechanism to provide
> monotonic reads through the CachedStore.commitTransaction. This will no
> longer be needed after HIVE-21637. So I will remove related code as well.
> This will provide some performance benefits include:
> 1. We don't have to slow down write to catch up notification logs. Write can
> be done immediately and tag the cache with writeids
> 2. We can read from cache even if updateUsingNotificationEvents is running.
> Read will compare the writeids of the cache so monotonic reads will be
> guaranteed
> I'd like to put a patch separately with HIVE-21637 so it can be tested
> independently. HMW will use periodical notification based refresh to update
> cache. And it will temporarily lift the monotonic reads guarantee until
> HIVE-21637 checkin.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
