public String getFieldsString() {
            List<String> fields = Lists.newArrayList();
            fields.add(agentIp);
            fields.add(tag);
            fields.add(cluster);
            fields.add(taskId);
            fields.add(retry);
            fields.add(contentType);
            fields.add(groupId);
            fields.add(streamId);
            fields.add(dataTime);
            fields.add(fileName);
            fields.add(fileLen);
            fields.add(readBytes);
            fields.add(readLines);
            fields.add(sendLines);
            return Strings.join(fields, ',');
        }
Collect various indicators of agent processes for backend problem analysis
inlong-agent/agent-core/src/main/java/org/apache/inlong/agent/core/FileStaticManager.java