gfwleak/galaxy-tsg-olap-dos-detection-job
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修复判定超出基线百分比逻辑bug

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This commit is contained in:
wanglihui
2021-08-17 11:09:45 +08:00
parent e89e1b08c9
commit 9bda526d48
2 changed files with 11 additions and 24 deletions
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19
pom.xml
View File

@@ -118,7 +118,7 @@
<groupId>org.apache.flink</groupId>
<artifactId>flink-sql-connector-kafka_2.11</artifactId>
<version>${flink.version}</version>
<!--<scope>provided</scope>-->
<scope>provided</scope>
</dependency>
<dependency>
@@ -128,23 +128,6 @@
<!--<scope>provided</scope>-->
</dependency>
<!--&lt;!&ndash; https://mvnrepository.com/artifact/org.apache.flink/flink-table &ndash;&gt;-->
<!--<dependency>-->
<!--<groupId>org.apache.flink</groupId>-->
<!--<artifactId>flink-table</artifactId>-->
<!--<version>${flink.version}</version>-->
<!--&lt;!&ndash;<scope>provided</scope>&ndash;&gt;-->
<!--</dependency>-->
<!-- https://mvnrepository.com/artifact/org.apache.flink/flink-json -->
<dependency>
<groupId>org.apache.flink</groupId>
<artifactId>flink-json</artifactId>
<version>${flink.version}</version>
<scope>provided</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.kafka/kafka-clients -->
<dependency>
<groupId>org.apache.kafka</groupId>

16
src/main/java/com/zdjizhi/etl/DosDetection.java
View File

@@ -43,10 +43,9 @@ public class DosDetection extends RichMapFunction<DosSketchLog, DosEventLog> {
if (baseline != null && baseline.size() == BASELINE_SIZE){
int timeIndex = getCurrentTimeIndex(value.getSketch_start_time());
Integer base = baseline.get(timeIndex);
long sketchSessions = value.getSketch_sessions();
long diff = sketchSessions - base;
long diff = value.getSketch_sessions() - base;
if (diff > 0){
String percent = getDiffPercent(diff, sketchSessions);
String percent = getDiffPercent(diff, base);
double diffPercentDouble = getDiffPercentDouble(percent);
Severity severity = judgeSeverity(diffPercentDouble);
if (severity != Severity.NORMAL){
@@ -105,10 +104,15 @@ public class DosDetection extends RichMapFunction<DosSketchLog, DosEventLog> {
return Integer.parseInt(Long.toString(indexLong));
}
private String getDiffPercent(long diff,long sketchSessions){
private String getDiffPercent(long diff,long base){
double diffDou = Double.parseDouble(Long.toString(diff));
double sessDou = Double.parseDouble(Long.toString(sketchSessions));
return PERCENT_INSTANCE.format(diffDou / sessDou);
double baseDou = Double.parseDouble(Long.toString(base));
return PERCENT_INSTANCE.format(diffDou / baseDou);
}
public static void main(String[] args) throws Exception {
System.out.println(new DosDetection().getDiffPercent(219, 0));
System.out.println(new DosDetection().getDiffPercentDouble("∞%"));
}
private double getDiffPercentDouble(String diffPercent) throws ParseException {