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https://issues.apache.org/jira/browse/HIVE-18743?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16447146#comment-16447146
]
Hive QA commented on HIVE-18743:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12920122/HIVE-18743.01-branch-2.patch
{color:green}SUCCESS:{color} +1 due to 1 test(s) being added or modified.
{color:red}ERROR:{color} -1 due to 15 failed/errored test(s), 10673 tests
executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestAccumuloCliDriver.testCliDriver[accumulo_queries]
(batchId=227)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[avro_tableproperty_optimize]
(batchId=22)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[explaindenpendencydiffengs]
(batchId=38)
org.apache.hadoop.hive.cli.TestMiniLlapCliDriver.testCliDriver[llap_smb]
(batchId=142)
org.apache.hadoop.hive.cli.TestMiniLlapCliDriver.testCliDriver[orc_ppd_basic]
(batchId=139)
org.apache.hadoop.hive.cli.TestMiniLlapCliDriver.testCliDriver[table_nonprintable]
(batchId=140)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[join_acid_non_acid]
(batchId=158)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[union_fast_stats]
(batchId=153)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[vector_if_expr]
(batchId=144)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[vectorized_parquet_types]
(batchId=155)
org.apache.hadoop.hive.cli.TestNegativeCliDriver.testCliDriver[merge_negative_5]
(batchId=88)
org.apache.hadoop.hive.cli.TestSparkCliDriver.testCliDriver[explaindenpendencydiffengs]
(batchId=115)
org.apache.hadoop.hive.cli.TestSparkCliDriver.testCliDriver[vectorization_input_format_excludes]
(batchId=117)
org.apache.hadoop.hive.cli.TestSparkCliDriver.testCliDriver[vectorized_ptf]
(batchId=125)
org.apache.hive.hcatalog.api.TestHCatClient.testTransportFailure (batchId=176)
{noformat}
Test results:
https://builds.apache.org/job/PreCommit-HIVE-Build/10402/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/10402/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-10402/
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: 15 tests failed
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12920122 - PreCommit-HIVE-Build
> CREATE TABLE on S3 data can be extremely slow. DO_NOT_UPDATE_STATS workaround
> is buggy.
> ---------------------------------------------------------------------------------------
>
> Key: HIVE-18743
> URL: https://issues.apache.org/jira/browse/HIVE-18743
> Project: Hive
> Issue Type: Improvement
> Components: Metastore
> Affects Versions: 1.2.0, 1.1.0, 2.0.2, 3.0.0
> Reporter: Alexander Behm
> Assignee: Alexander Kolbasov
> Priority: Major
> Attachments: HIVE-18743.01-branch-2.patch, HIVE-18743.01.patch
>
>
> When hive.stats.autogather=true then the Metastore lists all files under the
> table directory to populate basic stats like file counts and sizes. This file
> listing operation can be very expensive particularly on filesystems like S3.
> One way to address this issue is to reconfigure hive.stats.autogather=false.
> *Here's the bug*
> It is my understanding that the DO_NOT_UPDATE_STATS table property is
> intended to selectively prevent this stats collection. Unfortunately, this
> table property is checked *after* the expensive file listing operation, so
> the DO_NOT_UPDATE_STATS does not seem to work as intended. See:
> https://github.com/apache/hive/blob/master/standalone-metastore/src/main/java/org/apache/hadoop/hive/metastore/utils/MetaStoreUtils.java#L633
> Relevant code snippet:
> {code}
> public static boolean updateTableStatsFast(Database db, Table tbl,
> Warehouse wh,
> boolean madeDir, boolean
> forceRecompute, EnvironmentContext environmentContext) throws MetaException {
> if (tbl.getPartitionKeysSize() == 0) {
> // Update stats only when unpartitioned
> FileStatus[] fileStatuses = wh.getFileStatusesForUnpartitionedTable(db,
> tbl);
> return updateTableStatsFast(tbl, fileStatuses, madeDir, forceRecompute,
> environmentContext); <--- DO_NOT_UPDATE_STATS is checked in here after
> wh.getFileStatusesForUnpartitionedTable() has already been called
> } else {
> return false;
> }
> }
> {code}
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