Temporarily disable partitioned index/filter in stress test (#5811)

Summary:
PR https://github.com/facebook/rocksdb/issues/4020 enabled partitioned indexes/filters in stress tests; however,
this causes assertion failures in BatchedOpsStressTest. This patch
disables them until we can root cause the failures.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5811

Test Plan: Ran the script and made sure it only uses the binary search index.

Differential Revision: D17399366

Pulled By: ltamasi

fbshipit-source-id: adb116e6297f9c6ccd7ac15b6a16c9aa91f21ac5

tools/db_crashtest.py

@@ -41,8 +41,8 @@ default_params = {
     "enable_pipelined_write": 0,
     "expected_values_path": expected_values_file.name,
     "flush_one_in": 1000000,
-    # Temporarily disable hash index
+    # Temporarily disable hash and partitioned index
-    "index_type": lambda: random.choice([0, 2]),
+    "index_type": 0,
     "max_background_compactions": 20,
     "max_bytes_for_level_base": 10485760,
     "max_key": 100000000,
@@ -50,7 +50,8 @@ default_params = {
     "mmap_read": lambda: random.randint(0, 1),
     "nooverwritepercent": 1,
     "open_files": lambda : random.choice([-1, 500000]),
-    "partition_filters": lambda: random.randint(0, 1),
+    # Temporarily disable partitioned filter
+    "partition_filters": 0,
     "prefixpercent": 5,
     "progress_reports": 0,
     "readpercent": 45,