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https://issues.apache.org/jira/browse/HCATALOG-68?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13255001#comment-13255001
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[email protected] commented on HCATALOG-68:
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bq. On 2012-04-16 19:58:16, Mithun Radhakrishnan wrote:
bq. > /trunk/src/java/org/apache/hcatalog/common/HCatLogUtil.java, line 35
bq. > <https://reviews.apache.org/r/4732/diff/1/?file=102090#file102090line35>
bq. >
bq. > Question: Shouldn't we do
bq. >
bq. > logger.info(" " + data);
bq. >
bq. > instead of
bq. >
bq. > logger.info("{} ", data);
bq. >
bq. > Wouldn't this be far more performant?
The question is not really what is the fastest way of string concatenation, but
what brings us the lower relevant cost of logging in the whole picture.
I think this here would be a good starting point:
http://www.slf4j.org/faq.html#logging_performance
- Thomas
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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/4732/#review6950
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On 2012-04-16 06:31:43, Vandana Ayyalasomayajula wrote:
bq.
bq. -----------------------------------------------------------
bq. This is an automatically generated e-mail. To reply, visit:
bq. https://reviews.apache.org/r/4732/
bq. -----------------------------------------------------------
bq.
bq. (Updated 2012-04-16 06:31:43)
bq.
bq.
bq. Review request for hcatalog, Sushanth Sowmyan, Francis Liu, and Thomas.
bq.
bq.
bq. Summary
bq. -------
bq.
bq. We need to do the following things:
bq.
bq. + Use log4j across the board
bq. + Introduce a class with methods to help logging, refactoring away the
bunch of these functions in HCatUtil right now
bq. + Instrument debug logging with isLogEnabled checks on the log level
bq. + remove all instances of commented code whose purpose was for debug logs
bq.
bq.
bq. This addresses bug hcatalog-68.
bq. https://issues.apache.org/jira/browse/hcatalog-68
bq.
bq.
bq. Diffs
bq. -----
bq.
bq. /trunk/ivy.xml 1325838
bq.
/trunk/src/java/org/apache/hcatalog/cli/SemanticAnalysis/HCatSemanticAnalyzer.java
1325838
bq. /trunk/src/java/org/apache/hcatalog/common/HCatLogUtil.java PRE-CREATION
bq. /trunk/src/java/org/apache/hcatalog/common/HCatUtil.java 1325838
bq.
/trunk/src/java/org/apache/hcatalog/data/HCatRecordObjectInspectorFactory.java
1325838
bq. /trunk/src/java/org/apache/hcatalog/data/HCatRecordSerDe.java 1325838
bq. /trunk/src/java/org/apache/hcatalog/data/JsonSerDe.java 1325838
bq.
/trunk/src/java/org/apache/hcatalog/mapreduce/DefaultOutputCommitterContainer.java
1325838
bq. /trunk/src/java/org/apache/hcatalog/mapreduce/HCatOutputFormat.java
1325838
bq. /trunk/src/java/org/apache/hcatalog/mapreduce/HCatRecordReader.java
1325838
bq. /trunk/src/java/org/apache/hcatalog/mapreduce/HCatSplit.java 1325838
bq. /trunk/src/java/org/apache/hcatalog/mapreduce/InitializeInput.java
1325838
bq. /trunk/src/test/org/apache/hcatalog/data/HCatDataCheckUtil.java 1325838
bq. /trunk/src/test/org/apache/hcatalog/data/TestJsonSerDe.java 1325838
bq.
bq. Diff: https://reviews.apache.org/r/4732/diff
bq.
bq.
bq. Testing
bq. -------
bq.
bq. Unit tests pass. Log messages verified from test logs.
bq.
bq.
bq. Thanks,
bq.
bq. Vandana
bq.
bq.
> Logging from HCat
> -----------------
>
> Key: HCATALOG-68
> URL: https://issues.apache.org/jira/browse/HCATALOG-68
> Project: HCatalog
> Issue Type: Improvement
> Reporter: Sushanth Sowmyan
> Assignee: Vandana Ayyalasomayajula
>
> We need to do the following things:
> + Use log4j across the board
> + Introduce a class with methods to help logging, refactoring away the
> bunch of these functions in HCatUtil right now
> + Instrument debug logging with isLogEnabled checks on the log level
> + remove all instances of commented code whose purpose was for debug logs
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