You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@phoenix.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2016/12/15 11:25:58 UTC
[jira] [Commented] (PHOENIX-3536) Remove creating unnecessary
phoenix connections in MR Tasks of Hive
[ https://issues.apache.org/jira/browse/PHOENIX-3536?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15751118#comment-15751118 ]
Hadoop QA commented on PHOENIX-3536:
------------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12843380/PHOENIX-3536.patch
against master branch at commit 1a6a689b87de9c58e784276d542ed0bdb555962b.
ATTACHMENT ID: 12843380
{color:green}+1 @author{color}. The patch does not contain any @author tags.
{color:green}+1 tests included{color}. The patch appears to include 9 new or modified tests.
{color:green}+1 javac{color}. The applied patch does not increase the total number of javac compiler warnings.
{color:red}-1 javadoc{color}. The javadoc tool appears to have generated 43 warning messages.
{color:red}-1 release audit{color}. The applied patch generated 1 release audit warnings (more than the master's current 0 warnings).
{color:red}-1 lineLengths{color}. The patch introduces the following lines longer than 100:
+ this.isRequestLevelMetricsEnabled = JDBCUtil.isCollectingRequestLevelMetricsEnabled(url, this.info, this.services.getProps());
+ PColumn column = new PColumnImpl(PNameFactory.newName("c1"), PNameFactory.newName("f1"), PDecimal.INSTANCE, maxLen, scale,
+ new PColumnImpl(PNameFactory.newName("c2"), PNameFactory.newName("f1"), PDecimal.INSTANCE, maxLen, scale,
+ new PColumnImpl(PNameFactory.newName("c3"), PNameFactory.newName("f1"), PInteger.INSTANCE, maxLen, scale,
+ new PColumnImpl(PNameFactory.newName("c4"), PNameFactory.newName("f1"), PChar.INSTANCE, maxLen, scale,
+ ProjectedColumnExpression colExp = new ProjectedColumnExpression(column, columns, 1, "test");
+ PhoenixEmbeddedDriver.ConnectionInfo.create(PHOENIX_CONNECTIONLESS_JDBC_URL),
+ * deeply copying properties by QueryServices causes performance degradation.
+ public HTableInterface getTable(final byte[] tableName) throws SQLException {
+ ConnectionQueryServices queryServices = qplan.getContext().getConnection().getQueryServices();
{color:red}-1 core tests{color}. The patch failed these unit tests:
Test results: https://builds.apache.org/job/PreCommit-PHOENIX-Build/697//testReport/
Release audit warnings: https://builds.apache.org/job/PreCommit-PHOENIX-Build/697//artifact/patchprocess/patchReleaseAuditWarnings.txt
Javadoc warnings: https://builds.apache.org/job/PreCommit-PHOENIX-Build/697//artifact/patchprocess/patchJavadocWarnings.txt
Console output: https://builds.apache.org/job/PreCommit-PHOENIX-Build/697//console
This message is automatically generated.
> Remove creating unnecessary phoenix connections in MR Tasks of Hive
> -------------------------------------------------------------------
>
> Key: PHOENIX-3536
> URL: https://issues.apache.org/jira/browse/PHOENIX-3536
> Project: Phoenix
> Issue Type: Improvement
> Reporter: Jeongdae Kim
> Assignee: Jeongdae Kim
> Labels: HivePhoenix
> Attachments: PHOENIX-3536.patch
>
>
> PhoenixStorageHandler creates phoenix connections to make QueryPlan in getSplit phase(prepare MR) and getRecordReader phase(Map) while running MR Job.
> in phoenix, it spends too many times to create the first phoenix connection(QueryServices) for specific URL. (checking and loading phoenix schema information)
> i found it is possible to remove creating query plan again in Map phase(getRecordReader()) by serializing QueryPlan created from Input format ans passing this plan to record reader.
> this approach improves scan performance by removing trying to unnecessary connection in map phase.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)