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HIVE-23323: Add qsplits profile (Zoltan Haindrich reviewed by Miklos …
…Gergely) Signed-off-by: Zoltan Haindrich <zhaindrich@cloudera.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,26 @@ | ||
| #!/bin/bash | ||
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| usage() { | ||
| echo "$0 <from> <to>" | ||
| exit 1 | ||
| } | ||
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| [ "$1" == "" ] && usage | ||
| [ "$2" == "" ] && usage | ||
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| inDir="$1" | ||
| outDir="$2" | ||
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| git grep SplitSupport.process | grep "$1" | cut -d ':' -f1 | while read f;do | ||
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| echo "processing: $f" | ||
| n="`grep N_SPLITS "$f" | cut -d= -f2 | tr -c -d '0-9'`" | ||
| echo " * nSplits: $n" | ||
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| for((i=0;i<n;i++)) { | ||
| oDir="`dirname $f | sed "s|$inDir|$outDir|"`/split$i" | ||
| mkdir -p $oDir | ||
| cat $f | sed -r "s|^(package.*);$|\1.split$i;|g" > $oDir/`basename $f` | ||
| } | ||
| done |
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69 changes: 69 additions & 0 deletions
69
itests/util/src/main/java/org/apache/hadoop/hive/cli/control/SplitSupport.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,69 @@ | ||
| package org.apache.hadoop.hive.cli.control; | ||
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| import java.util.ArrayList; | ||
| import java.util.List; | ||
| import java.util.regex.Matcher; | ||
| import java.util.regex.Pattern; | ||
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| import com.google.common.annotations.VisibleForTesting; | ||
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| public class SplitSupport { | ||
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| public static List<Object[]> process(List<Object[]> parameters, Class<?> currentClass, int nSplits) { | ||
| if (!isSplitExecution(currentClass)) { | ||
| return parameters; | ||
| } | ||
| // auto-disable primary test in case splits are present | ||
| if (isSplit0ClassExistsFor(currentClass)) { | ||
| return new ArrayList<>(); | ||
| } | ||
| int i = getSplitIndex(currentClass); | ||
| return getSplitParams(parameters, i, nSplits); | ||
| } | ||
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| private static boolean isSplitExecution(Class<?> currentClass) { | ||
| return isSplitClass(currentClass) || isSplit0ClassExistsFor(currentClass); | ||
| } | ||
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| @VisibleForTesting | ||
| static List<Object[]> getSplitParams(List<Object[]> parameters, int i, int nSplits) { | ||
| if(i<0 || i>=nSplits) { | ||
| throw new IllegalArgumentException("unexpected"); | ||
| } | ||
| int n = parameters.size(); | ||
| int st = i * n / nSplits; | ||
| int ed = (i + 1) * n / nSplits; | ||
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| return parameters.subList(st, ed); | ||
| } | ||
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| @VisibleForTesting | ||
| static boolean isSplitClass(Class<?> currentClass) { | ||
| Package p = currentClass.getPackage(); | ||
| return p.getName().matches(".*split[0-9]+$"); | ||
| } | ||
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| @VisibleForTesting | ||
| static int getSplitIndex(Class<?> currentClass) { | ||
| Package p = currentClass.getPackage(); | ||
| Pattern pat = Pattern.compile("(.*split)([0-9]+)$"); | ||
| Matcher matcher = pat.matcher(p.getName()); | ||
| if (matcher.find()) { | ||
| return Integer.parseInt(matcher.group(2)); | ||
| } | ||
| throw new IllegalArgumentException("cant get splitindex for: " + p); | ||
| } | ||
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| @VisibleForTesting | ||
| static boolean isSplit0ClassExistsFor(Class<?> clazz) { | ||
| Package p = clazz.getPackage(); | ||
| String split1 = p.getName() + ".split0." + clazz.getSimpleName(); | ||
| try { | ||
| Class<?> c = Class.forName(split1); | ||
| return c != null; | ||
| } catch (ClassNotFoundException e) { | ||
| return false; | ||
| } | ||
| } | ||
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| } |
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