Use consistent log file names, introduced initLogger (#3403)

### What problem does this PR solve?

Use consistent log file names, introduced initLogger

### Type of change

- [ ] Bug Fix (non-breaking change which fixes an issue)
- [ ] New Feature (non-breaking change which adds functionality)
- [ ] Documentation Update
- [x] Refactoring
- [ ] Performance Improvement
- [ ] Other (please describe):

rag/raptor.py

@@ -13,6 +13,7 @@
 #  See the License for the specific language governing permissions and
 #  limitations under the License.
 #
+import logging
 import re
 from concurrent.futures import ThreadPoolExecutor, ALL_COMPLETED, wait
 from threading import Lock
@@ -22,7 +23,6 @@ import numpy as np
 from sklearn.mixture import GaussianMixture
 
 from rag.utils import truncate
-from api.utils.log_utils import logger
 
 
 class RecursiveAbstractiveProcessing4TreeOrganizedRetrieval:
@@ -62,13 +62,13 @@ class RecursiveAbstractiveProcessing4TreeOrganizedRetrieval:
                                              {"temperature": 0.3, "max_tokens": self._max_token}
                                              )
                 cnt = re.sub("(······\n由于长度的原因，回答被截断了，要继续吗？|For the content length reason, it stopped, continue?)", "", cnt)
-                logger.info(f"SUM: {cnt}")
+                logging.debug(f"SUM: {cnt}")
                 embds, _ = self._embd_model.encode([cnt])
                 with lock:
                     if not len(embds[0]): return
                     chunks.append((cnt, embds[0]))
             except Exception as e:
-                logger.exception("summarize got exception")
+                logging.exception("summarize got exception")
                 return e
 
         labels = []
@@ -104,7 +104,7 @@ class RecursiveAbstractiveProcessing4TreeOrganizedRetrieval:
                     ck_idx = [i+start for i in range(len(lbls)) if lbls[i] == c]
                     threads.append(executor.submit(summarize, ck_idx, lock))
                 wait(threads, return_when=ALL_COMPLETED)
-                logger.info(str([t.result() for t in threads]))
+                logging.debug(str([t.result() for t in threads]))
 
             assert len(chunks) - end == n_clusters, "{} vs. {}".format(len(chunks) - end, n_clusters)
             labels.extend(lbls)