rickchengx commented on code in PR #13654:
URL: 
https://github.com/apache/dolphinscheduler/pull/13654#discussion_r1121638781


##########
dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/LoggerServiceImpl.java:
##########
@@ -202,19 +207,33 @@ private String queryLog(TaskInstance taskInstance, int 
skipLineNum, int limit) {
         log.info("Query task instance log, taskInstanceId:{}, 
taskInstanceName:{}, host:{}, logPath:{}, port:{}",
                 taskInstance.getId(), taskInstance.getName(), host.getIp(), 
taskInstance.getLogPath(), host.getPort());
 
-        StringBuilder log = new StringBuilder();
+        StringBuilder sb = new StringBuilder();
         if (skipLineNum == 0) {
             String head = String.format(LOG_HEAD_FORMAT,
                     taskInstance.getLogPath(),
                     host,
                     Constants.SYSTEM_LINE_SEPARATOR);
-            log.append(head);
+            sb.append(head);
         }
 
-        log.append(logClient
-                .rollViewLog(host.getIp(), host.getPort(), 
taskInstance.getLogPath(), skipLineNum, limit));
+        String logContent = logClient
+                .rollViewLog(host.getIp(), host.getPort(), 
taskInstance.getLogPath(), skipLineNum, limit);
 
-        return log.toString();
+        if (StringUtils.isEmpty(logContent) && 
RemoteLogUtils.isRemoteLoggingEnable()) {
+            // get task log from remote target
+            try {
+                RemoteLogUtils.getRemoteLog(taskInstance.getLogPath());
+                File logFile = new File(taskInstance.getLogPath());
+                logContent = FileUtils.readFileToString(logFile, 
Charset.defaultCharset());
+                FileUtils.delete(logFile);
+            } catch (IOException e) {
+                log.error("Error while getting log from remote target", e);
+            }
+        }
+
+        sb.append(logContent);

Review Comment:
   thanks for your comment. I'll look into it ;)



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