ruanwenjun commented on code in PR #10612:
URL: https://github.com/apache/dolphinscheduler/pull/10612#discussion_r906662332
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dolphinscheduler-log-server/src/main/java/org/apache/dolphinscheduler/server/log/LoggerRequestProcessor.java:
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@@ -113,8 +114,22 @@ public void process(Channel channel, Command command) {
List<String> lines = readPartFileContent(rollViewLogPath,
rollViewLogRequest.getSkipLineNum(),
rollViewLogRequest.getLimit());
StringBuilder builder = new StringBuilder();
+ final int MaxResponseLogSize = 65535;
for (String line : lines) {
- builder.append(line).append("\r\n");
+ //If a single line of log is exceed max response size, cut
off the line
+ if (line.getBytes(StandardCharsets.UTF_8).length >=
MaxResponseLogSize) {
+ builder.append(line, 0, MaxResponseLogSize)
+ .append(" [this line' size is exceed ")
+ .append(MaxResponseLogSize).append(" bytes, so
only ")
+ .append(MaxResponseLogSize).append("
characters are reserved for performance reasons.]")
+ .append("\r\n");
+ }else {
+ builder.append(line).append("\r\n");
+ }
+
+ if
(builder.toString().getBytes(StandardCharsets.UTF_8).length >=
MaxResponseLogSize) {
+ break;
Review Comment:
I worry this method will be very slow, you already calculate the size of
each line, you don't need to calculate the size again.
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