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https://issues.apache.org/jira/browse/HIVE-12636?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15979568#comment-15979568
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Hive QA commented on HIVE-12636:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12864557/HIVE-12636.13.patch
{color:green}SUCCESS:{color} +1 due to 11 test(s) being added or modified.
{color:red}ERROR:{color} -1 due to 3 failed/errored test(s), 10618 tests
executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestAccumuloCliDriver.testCliDriver[accumulo_index]
(batchId=225)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[skewjoinopt1]
(batchId=73)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[vector_if_expr]
(batchId=143)
{noformat}
Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/4831/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/4831/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-4831/
Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
Tests exited with: TestsFailedException: 3 tests failed
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12864557 - PreCommit-HIVE-Build
> Ensure that all queries (with DbTxnManager) run in a transaction
> ----------------------------------------------------------------
>
> Key: HIVE-12636
> URL: https://issues.apache.org/jira/browse/HIVE-12636
> Project: Hive
> Issue Type: Improvement
> Components: Transactions
> Affects Versions: 1.0.0
> Reporter: Eugene Koifman
> Assignee: Eugene Koifman
> Priority: Critical
> Attachments: HIVE-12636.01.patch, HIVE-12636.02.patch,
> HIVE-12636.03.patch, HIVE-12636.04.patch, HIVE-12636.05.patch,
> HIVE-12636.06.patch, HIVE-12636.07.patch, HIVE-12636.09.patch,
> HIVE-12636.10.patch, HIVE-12636.12.patch, HIVE-12636.13.patch
>
>
> Assuming Hive is using DbTxnManager
> Currently (as of this writing only auto commit mode is supported), only
> queries that write to an Acid table start a transaction.
> Read-only queries don't open a txn but still acquire locks.
> This makes internal structures confusing/odd.
> The are constantly 2 code paths to deal with which is inconvenient and error
> prone.
> Also, a txn id is convenient "handle" for all locks/resources within a txn.
> Doing thing would mean the client no longer needs to track locks that it
> acquired. This enables further improvements to metastore side of Acid.
> # add metastore call to openTxn() and acquireLocks() in a single call. this
> it to make sure perf doesn't degrade for read-only query. (Would also be
> useful for auto commit write queries)
> # Should RO queries generate txn ids from the same sequence? (they could for
> example use negative values of a different sequence). Txnid is part of the
> delta/base file name. Currently it's 7 digits. If we use the same sequence,
> we'll exceed 7 digits faster. (possible upgrade issue). On the other hand
> there is value in being able to pick txn id and commit timestamp out of the
> same logical sequence.
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