X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/cc8174aca759773fa661bd9172f877b2d639576b..150de14b0b265d86df11a04201320944d04fe3a5:/sdk/python/arvados/arvfile.py

diff --git a/sdk/python/arvados/arvfile.py b/sdk/python/arvados/arvfile.py
index 6893b94bf7..2ce0e46b30 100644
--- a/sdk/python/arvados/arvfile.py
+++ b/sdk/python/arvados/arvfile.py
@@ -481,7 +481,7 @@ class _BlockManager(object):
     DEFAULT_PUT_THREADS = 2
     DEFAULT_GET_THREADS = 2
 
-    def __init__(self, keep, copies=None, put_threads=None, num_retries=None):
+    def __init__(self, keep, copies=None, put_threads=None, num_retries=None, storage_classes_func=None, get_threads=None):
         """keep: KeepClient object to use"""
         self._keep = keep
         self._bufferblocks = collections.OrderedDict()
@@ -491,12 +491,10 @@ class _BlockManager(object):
         self._prefetch_threads = None
         self.lock = threading.Lock()
         self.prefetch_enabled = True
-        if put_threads:
-            self.num_put_threads = put_threads
-        else:
-            self.num_put_threads = _BlockManager.DEFAULT_PUT_THREADS
-        self.num_get_threads = _BlockManager.DEFAULT_GET_THREADS
+        self.num_put_threads = put_threads or _BlockManager.DEFAULT_PUT_THREADS
+        self.num_get_threads = get_threads or _BlockManager.DEFAULT_GET_THREADS
         self.copies = copies
+        self.storage_classes = storage_classes_func or (lambda: [])
         self._pending_write_size = 0
         self.threads_lock = threading.Lock()
         self.padding_block = None
@@ -555,9 +553,9 @@ class _BlockManager(object):
                     return
 
                 if self.copies is None:
-                    loc = self._keep.put(bufferblock.buffer_view[0:bufferblock.write_pointer].tobytes(), num_retries=self.num_retries)
+                    loc = self._keep.put(bufferblock.buffer_view[0:bufferblock.write_pointer].tobytes(), num_retries=self.num_retries, classes=self.storage_classes())
                 else:
-                    loc = self._keep.put(bufferblock.buffer_view[0:bufferblock.write_pointer].tobytes(), num_retries=self.num_retries, copies=self.copies)
+                    loc = self._keep.put(bufferblock.buffer_view[0:bufferblock.write_pointer].tobytes(), num_retries=self.num_retries, copies=self.copies, classes=self.storage_classes())
                 bufferblock.set_state(_BufferBlock.COMMITTED, loc)
             except Exception as e:
                 bufferblock.set_state(_BufferBlock.ERROR, e)
@@ -572,7 +570,7 @@ class _BlockManager(object):
 
                 # If we don't limit the Queue size, the upload queue can quickly
                 # grow to take up gigabytes of RAM if the writing process is
-                # generating data more quickly than it can be send to the Keep
+                # generating data more quickly than it can be sent to the Keep
                 # servers.
                 #
                 # With two upload threads and a queue size of 2, this means up to 4
@@ -595,7 +593,7 @@ class _BlockManager(object):
                 b = self._prefetch_queue.get()
                 if b is None:
                     return
-                self._keep.get(b)
+                self._keep.get(b, prefetch=True)
             except Exception:
                 _logger.exception("Exception doing block prefetch")
 
@@ -726,9 +724,9 @@ class _BlockManager(object):
         if sync:
             try:
                 if self.copies is None:
-                    loc = self._keep.put(block.buffer_view[0:block.write_pointer].tobytes(), num_retries=self.num_retries)
+                    loc = self._keep.put(block.buffer_view[0:block.write_pointer].tobytes(), num_retries=self.num_retries, classes=self.storage_classes())
                 else:
-                    loc = self._keep.put(block.buffer_view[0:block.write_pointer].tobytes(), num_retries=self.num_retries, copies=self.copies)
+                    loc = self._keep.put(block.buffer_view[0:block.write_pointer].tobytes(), num_retries=self.num_retries, copies=self.copies, classes=self.storage_classes())
                 block.set_state(_BufferBlock.COMMITTED, loc)
             except Exception as e:
                 block.set_state(_BufferBlock.ERROR, e)
@@ -762,9 +760,10 @@ class _BlockManager(object):
         self._delete_bufferblock(locator)
 
     def _delete_bufferblock(self, locator):
-        bb = self._bufferblocks[locator]
-        bb.clear()
-        del self._bufferblocks[locator]
+        if locator in self._bufferblocks:
+            bb = self._bufferblocks[locator]
+            bb.clear()
+            del self._bufferblocks[locator]
 
     def get_block_contents(self, locator, num_retries, cache_only=False):
         """Fetch a block.
@@ -842,9 +841,6 @@ class _BlockManager(object):
         if not self.prefetch_enabled:
             return
 
-        if self._keep.get_from_cache(locator) is not None:
-            return
-
         with self.lock:
             if locator in self._bufferblocks:
                 return
@@ -1100,7 +1096,7 @@ class ArvadosFile(object):
             if size == 0 or offset >= self.size():
                 return b''
             readsegs = locators_and_ranges(self._segments, offset, size)
-            prefetch = locators_and_ranges(self._segments, offset + size, config.KEEP_BLOCK_SIZE, limit=32)
+            prefetch = locators_and_ranges(self._segments, offset + size, config.KEEP_BLOCK_SIZE * self.parent._my_block_manager().num_get_threads, limit=32)
 
         locs = set()
         data = []