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Add plugable locking backend support. Add threadsafe file lock backend.

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This commit is contained in:
Roberto Rosario
2016-11-13 03:50:09 -04:00
parent f5e3d5a8f2
commit 44531bd92a
12 changed files with 155 additions and 65 deletions
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24
mayan/apps/document_indexing/tasks.py
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@@ -7,6 +7,7 @@ from django.db import OperationalError
from mayan.celery import app
from lock_manager import LockError
from lock_manager.runtime import locking_backend
from .literals import RETRY_DELAY
@@ -18,12 +19,9 @@ def task_delete_empty_index_nodes(self):
IndexInstanceNode = apps.get_model(
app_label='document_indexing', model_name='IndexInstanceNode'
)
Lock = apps.get_model(
app_label='lock_manager', model_name='Lock'
)
try:
rebuild_lock = Lock.objects.acquire_lock(
rebuild_lock = locking_backend.acquire_lock(
'document_indexing_task_do_rebuild_all_indexes'
)
except LockError as exception:
@@ -46,12 +44,8 @@ def task_index_document(self, document_id):
app_label='document_indexing', model_name='IndexInstanceNode'
)
Lock = apps.get_model(
app_label='lock_manager', model_name='Lock'
)
try:
rebuild_lock = Lock.objects.acquire_lock(
rebuild_lock = locking_backend.acquire_lock(
'document_indexing_task_do_rebuild_all_indexes'
)
except LockError as exception:
@@ -59,7 +53,7 @@ def task_index_document(self, document_id):
raise self.retry(exc=exception)
else:
try:
lock = Lock.objects.acquire_lock(
lock = locking_backend.acquire_lock(
'document_indexing_task_update_index_document_%d' % document_id
)
except LockError as exception:
@@ -96,16 +90,8 @@ def task_do_rebuild_all_indexes(self):
app_label='document_indexing', model_name='IndexInstanceNode'
)
Lock = apps.get_model(
app_label='lock_manager', model_name='Lock'
)
if Lock.objects.check_existing(name__startswith='document_indexing_task_update_index_document'):
# A document index update is happening, wait
raise self.retry()
try:
lock = Lock.objects.acquire_lock(
lock = locking_backend.acquire_lock(
'document_indexing_task_do_rebuild_all_indexes'
)
except LockError as exception: