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fast_confirm_chunks: release all on error;

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possibly fixes an issue someone has been runnning into:

an upload could get stuck on "that chunk is already being written to"
when the server was overloaded enough that connections kept dropping
This commit is contained in:
ed 2025-09-23 19:11:41 +00:00
parent 377eddcd06
commit b136a5b042
2 changed files with 13 additions and 8 deletions
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4
copyparty/httpcli.py
View file

@ -2952,7 +2952,9 @@ class HttpCli(object):
if now - treport < 1:
continue
treport = now
x = broker.ask("up2k.fast_confirm_chunks", ptop, wark, written)
x = broker.ask(
"up2k.fast_confirm_chunks", ptop, wark, written, locked
)
num_left, t = x.get()
if num_left < -1:
self.loud_reply(t, status=500)

17
copyparty/up2k.py
View file

@ -3679,14 +3679,15 @@ class Up2k(object):
t = t.format(job["name"], nchunks[0][0], coffsets[0][0], cur_sz)
raise Pebkac(400, t)
job["busy"][chash] = 1
for chash in chashes:
job["busy"][chash] = 1
job["poke"] = time.time()
return chashes, chunksize, coffsets, path, job["lmod"], job["size"], job["sprs"]
def fast_confirm_chunks(
self, ptop: str, wark: str, chashes: list[str]
self, ptop: str, wark: str, chashes: list[str], locked: list[str]
) -> tuple[int, str]:
if not self.mutex.acquire(False):
return -1, ""
@ -3694,7 +3695,7 @@ class Up2k(object):
self.mutex.release()
return -1, ""
try:
return self._confirm_chunks(ptop, wark, chashes, chashes)
return self._confirm_chunks(ptop, wark, chashes, locked, False)
finally:
self.reg_mutex.release()
self.mutex.release()
@ -3703,10 +3704,10 @@ class Up2k(object):
self, ptop: str, wark: str, written: list[str], locked: list[str]
) -> tuple[int, str]:
with self.mutex, self.reg_mutex:
return self._confirm_chunks(ptop, wark, written, locked)
return self._confirm_chunks(ptop, wark, written, locked, True)
def _confirm_chunks(
self, ptop: str, wark: str, written: list[str], locked: list[str]
self, ptop: str, wark: str, written: list[str], locked: list[str], final: bool
) -> tuple[int, str]:
if True:
self.db_act = self.vol_act[ptop] = time.time()
@ -3718,14 +3719,16 @@ class Up2k(object):
except Exception as ex:
return -2, "confirm_chunk, wark(%r)" % (ex,) # type: ignore
for chash in locked:
for chash in locked if final else written:
job["busy"].pop(chash, None)
try:
for chash in written:
job["need"].remove(chash)
except Exception as ex:
# dead tcp connections can get here by timeout (OK)
for zs in locked:
if job["busy"].pop(zs, None):
self.log("panic-unlock wark(%s) chunk(%s)" % (wark, zs), 1)
return -2, "confirm_chunk, chash(%s) %r" % (chash, ex) # type: ignore
ret = len(job["need"])