def _modify_index(self, index, schema, wikiname, revids, mode='add', procs=1, limitmb=256):
"""
modify index contents - add, update, delete the indexed documents for all given revids
Note: mode == 'add' is faster but you need to make sure to not create duplicate
documents in the index.
"""
if procs == 1:
# MultiSegmentWriter sometimes has issues and is pointless for procs == 1,
# so use the simple writer when --procs 1 is given:
writer = index.writer()
else:
writer = MultiSegmentWriter(index, procs, limitmb)
with writer as writer:
for revid in revids:
if mode in ['add', 'update', ]:
meta, data = self.backend.retrieve(revid)
content = convert_to_indexable(meta, data)
doc = backend_to_index(meta, content, schema, wikiname)
if mode == 'update':
writer.update_document(**doc)
elif mode == 'add':
writer.add_document(**doc)
elif mode == 'delete':
writer.delete_by_term(REVID, revid)
else:
raise ValueError("mode must be 'update', 'add' or 'delete', not '%s'" % mode)
def indexer(self, create=True):
schema = self.bench.spec.whoosh_schema()
path = os.path.join(self.options.dir,
"%s_whoosh" % self.options.indexname)
if not os.path.exists(path):
os.mkdir(path)
if create:
ix = index.create_in(path, schema)
else:
ix = index.open_dir(path)
poolclass = None
if self.options.pool:
poolclass = find_object(self.options.pool)
kwargs = dict(limitmb=int(self.options.limitmb),
poolclass=poolclass,
dir=self.options.tempdir,
procs=int(self.options.procs),
batchsize=int(self.options.batch))
if self.options.expw:
from whoosh.filedb.multiproc import MultiSegmentWriter
self.writer = MultiSegmentWriter(ix, **kwargs)
else:
self.writer = ix.writer(**kwargs)
self._procdoc = None
if hasattr(self.bench.spec, "process_document_whoosh"):
self._procdoc = self.bench.spec.process_document_whoosh
def set_multiSegmentWriter(self, limitmb = 128, procs = 4): self.__isMultiSegment = True self.writer = MultiSegmentWriter(self.index, limitmb, procs)
def test_multisegwriter():
from whoosh.filedb.multiproc import MultiSegmentWriter
_check_writer("multisegw", lambda ix: MultiSegmentWriter(ix, procs=4))
