From f80d8519644338ffe019616ca584af08c4002e2d Mon Sep 17 00:00:00 2001
From: linliaoy <linliaoy@163.com>
Date: Thu, 17 Sep 2020 16:38:52 +0800
Subject: [PATCH] traceId.hashCode() Adding Math#abs (#5506)

---
 .../provider/trace/parser/listener/TraceSegmentSampler.java     | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/oap-server/analyzer/agent-analyzer/src/main/java/org/apache/skywalking/oap/server/analyzer/provider/trace/parser/listener/TraceSegmentSampler.java b/oap-server/analyzer/agent-analyzer/src/main/java/org/apache/skywalking/oap/server/analyzer/provider/trace/parser/listener/TraceSegmentSampler.java
index 493897c74..4623a2c76 100644
--- a/oap-server/analyzer/agent-analyzer/src/main/java/org/apache/skywalking/oap/server/analyzer/provider/trace/parser/listener/TraceSegmentSampler.java
+++ b/oap-server/analyzer/agent-analyzer/src/main/java/org/apache/skywalking/oap/server/analyzer/provider/trace/parser/listener/TraceSegmentSampler.java
@@ -32,6 +32,6 @@ public class TraceSegmentSampler {
     }
 
     public boolean shouldSample(String traceId) {
-        return traceId.hashCode() % 10000 < traceSampleRateWatcher.getSampleRate();
+        return Math.abs(traceId.hashCode()) % 10000 < traceSampleRateWatcher.getSampleRate();
     }
 }