[profile](bugfix) should not cache profile content because the profil…

…e may not be a full profile (#27635)

---------

Co-authored-by: yiguolei <yiguolei@gmail.com>

fe/fe-core/src/main/java/org/apache/doris/common/util/ProfileManager.java

@@ -71,8 +71,6 @@ public ProfileElement(RuntimeProfile profile) {
  }
 
  private final RuntimeProfile profile;
- // cache the result of getProfileContent method
- private volatile String profileContent;
  public Map<String, String> infoStrings = Maps.newHashMap();
  public MultiProfileTreeBuilder builder = null;
  public String errMsg = "";
@@ -81,12 +79,8 @@ public ProfileElement(RuntimeProfile profile) {
 
  // lazy load profileContent because sometimes profileContent is very large
  public String getProfileContent() {
- if (profileContent != null) {
- return profileContent;
- }
  // no need to lock because the possibility of concurrent read is very low
- profileContent = profile.toString();
- return profileContent;
+ return profile.toString();
  }
 
  public String getProfileBrief() {
@@ -103,7 +97,8 @@ public void setStatsErrorEstimator(StatsErrorEstimator statsErrorEstimator) {
  }
  }
 
- // only protect queryIdDeque; queryIdToProfileMap is concurrent, no need to protect
+ // only protect queryIdDeque; queryIdToProfileMap is concurrent, no need to
+ // protect
  private ReentrantReadWriteLock lock;
  private ReadLock readLock;
  private WriteLock writeLock;
@@ -165,7 +160,8 @@ public void pushProfile(RuntimeProfile profile) {
  ProfileElement element = createElement(profile);
  // 'insert into' does have job_id, put all profiles key with query_id
  String key = element.infoStrings.get(SummaryProfile.PROFILE_ID);
- // check when push in, which can ensure every element in the list has QUERY_ID column,
+ // check when push in, which can ensure every element in the list has QUERY_ID
+ // column,
  // so there is no need to check when remove element from list.
  if (Strings.isNullOrEmpty(key)) {
  LOG.warn("the key or value of Map is null, "