diff --git a/backend/src/main/java/com/shyashyashya/refit/global/auth/service/JwtAuthenticationFilter.java b/backend/src/main/java/com/shyashyashya/refit/global/auth/service/JwtAuthenticationFilter.java
index 1e8856901..bf2983079 100644
--- a/backend/src/main/java/com/shyashyashya/refit/global/auth/service/JwtAuthenticationFilter.java
+++ b/backend/src/main/java/com/shyashyashya/refit/global/auth/service/JwtAuthenticationFilter.java
@@ -15,6 +15,7 @@
 import jakarta.servlet.http.HttpServletResponse;
 import lombok.RequiredArgsConstructor;
 import org.jspecify.annotations.NonNull;
+import org.slf4j.MDC;
 import org.springframework.core.annotation.Order;
 import org.springframework.http.HttpMethod;
 import org.springframework.stereotype.Component;
@@ -59,6 +60,7 @@ protected void doFilterInternal(
 
             requestUserContext.setEmail(email);
             requestUserContext.setUserId(userId);
+            MDC.put("userInfo", email);
 
             if (isGuestRequest(userId)) {
                 validateGuestRequestNotIllegal(request);
diff --git a/backend/src/main/java/com/shyashyashya/refit/global/config/QuestionEmbeddingAsyncConfig.java b/backend/src/main/java/com/shyashyashya/refit/global/config/QuestionEmbeddingAsyncConfig.java
index e32f78aaa..d66579768 100644
--- a/backend/src/main/java/com/shyashyashya/refit/global/config/QuestionEmbeddingAsyncConfig.java
+++ b/backend/src/main/java/com/shyashyashya/refit/global/config/QuestionEmbeddingAsyncConfig.java
@@ -16,7 +16,7 @@ public Executor embeddingTaskExecutor() {
         executor.setCorePoolSize(2);
         executor.setMaxPoolSize(5);
         executor.setQueueCapacity(100);
-        executor.setThreadNamePrefix("QuestionEmbedding-Thread-");
+        executor.setThreadNamePrefix("qna-embed-");
         executor.initialize();
         return executor;
     }
diff --git a/backend/src/main/java/com/shyashyashya/refit/global/filter/ApiLoggingFilter.java b/backend/src/main/java/com/shyashyashya/refit/global/filter/ApiLoggingFilter.java
index eb074d7e6..c75d3b7bb 100644
--- a/backend/src/main/java/com/shyashyashya/refit/global/filter/ApiLoggingFilter.java
+++ b/backend/src/main/java/com/shyashyashya/refit/global/filter/ApiLoggingFilter.java
@@ -39,7 +39,7 @@ protected void doFilterInternal(
         String clientIp = getClientIp(request);
         String queryString = request.getQueryString();
         String decodedQueryString = "";
-        MDC.put("clientIp", clientIp);
+        MDC.put("userInfo", clientIp);
 
         if (queryString != null && !queryString.isEmpty()) {
             decodedQueryString = "?" + URLDecoder.decode(queryString, StandardCharsets.UTF_8);
@@ -57,7 +57,7 @@ protected void doFilterInternal(
             long duration = System.currentTimeMillis() - startTime;
             int status = response.getStatus();
             log.info("[Resp] HTTP {} ({} {}) - {}ms", status, method, requestUriWithQuery, duration);
-            MDC.remove("clientIp");
+            MDC.remove("userInfo");
             MDC.clear();
         }
     }
diff --git a/backend/src/main/resources/logback-spring.xml b/backend/src/main/resources/logback-spring.xml
index eee334ba2..c0ae67645 100644
--- a/backend/src/main/resources/logback-spring.xml
+++ b/backend/src/main/resources/logback-spring.xml
@@ -5,7 +5,7 @@
     <!-- Console Appender -->
     <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
         <encoder>
-            <pattern>%clr(%d{MM-dd HH:mm:ss.SS}){faint} %clr(%5p) %clr([%X{traceId:-NO_TRACE}]){yellow} %clr([%-15.15X{clientIp:-NO_IP}]){blue} %clr([%10.10t]){faint} %clr(%-32.32logger{32}){cyan} %clr(:){faint} %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}</pattern>
+            <pattern>%clr(%d{MM-dd HH:mm:ss.SS}){faint} %clr(%5p) %clr([%X{traceId:-NO_TRACE}]){yellow} %clr([%-15.-15X{userInfo:-NO_INFO}]){blue} %clr([%13.13t]){faint} %clr(%-26.26logger{26}){cyan} %clr(:){faint} %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}</pattern>
         </encoder>
     </appender>
 
@@ -13,7 +13,7 @@
     <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
         <file>logs/refit-application.log</file>
         <encoder>
-            <pattern>%d{yyyy-MM-dd HH:mm:ss.SS} %5p [%X{traceId:-NO_TRACE}] [%-15.15X{clientIp:-NO_IP}] [%10.10t] %-32.32logger{32} : %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}</pattern>
+            <pattern>%d{yyyy-MM-dd HH:mm:ss.SS} %5p [%X{traceId:-NO_TRACE}] [%-15.-15X{userInfo:-NO_INFO}] [%13.13t] %-26.26logger{26} : %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}</pattern>
         </encoder>
         <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
             <!-- 매일 로그 파일을 새로 만들고, 최대 30일 보관 -->