Bruce Martin created ARROW-13152:
------------------------------------
Summary: Plasma server hangs on Get requests containing duplicate
object IDs
Key: ARROW-13152
URL: https://issues.apache.org/jira/browse/ARROW-13152
Project: Apache Arrow
Issue Type: Bug
Components: C++
Affects Versions: 4.0.1
Environment: tested on Linux/Python 3.8/pyarrow 4.0.1
Reporter: Bruce Martin
If a plasma client issues a Get request containing duplicate object IDs, and a
timeout of -1, the server will hang.
The logic at the end of `PlasmaStore::ProcessGetRequest()` only returns a
response when the number of satisfied requests match the number of *unique*
objects to wait for. The former is calculated using the number of requested
object IDs, not the number of unique requested object IDs.
To reproduce:
{code:java}
# start the plasma store first
from pyarrow import plasma
client = plasma.connect("/tmp/plasma")# oid = plasma.ObjectID(b'0'*20)oid =
client.put("hello, world")
print(client.get([oid, oid], -1))print("done.")
{code}
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
