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https://issues.apache.org/jira/browse/KYLIN-4621?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17154197#comment-17154197
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ASF GitHub Bot commented on KYLIN-4621:
---------------------------------------
RupengWang commented on a change in pull request #1310:
URL: https://github.com/apache/kylin/pull/1310#discussion_r451976570
##########
File path: build/conf/kylin-parquet-log4j.properties
##########
@@ -0,0 +1,31 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+
+#overall config
+log4j.rootLogger=WARN,hdfs,stdout
+log4j.logger.org.apache.kylin=DEBUG
+log4j.logger.org.springframework=WARN
+log4j.logger.org.springframework.security=WARN
+log4j.logger.org.apache.spark=WARN
+log4j.logger.org.apache.spark.ContextCleaner=WARN
+
+log4j.appender.stdout=org.apache.log4j.ConsoleAppender
Review comment:
This log4j configuration file is used for Spark job. If the job is
submitted to yarn. The normal file appender cannot be used.
We need to extend a new appender by ourselves to let the log of spark
job(both driver and executor) write into HDFS which can be realized in the
future.
Kylin submit a spark job by a command executor client. It will gather the
output of spark job and save into kylin.log .
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> Avoid annoying log message when build cube and query
> ----------------------------------------------------
>
> Key: KYLIN-4621
> URL: https://issues.apache.org/jira/browse/KYLIN-4621
> Project: Kylin
> Issue Type: Improvement
> Components: Spark Engine
> Affects Versions: v4.0.0-beta
> Reporter: wangrupeng
> Assignee: wangrupeng
> Priority: Major
> Fix For: v4.0.0-beta
>
>
> # Build
> There will be about 40 thousands rows log messages of one build task,
> most of them are unnecessary.
> # Query
> The first time of query, kylin will init one spark context and print all
> jars and classes loaded. This can be print in kylin.out not kylin.log.
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