You are viewing a plain text version of this content. The canonical link for it is here.
Posted to jira@arrow.apache.org by "Bruce Martin (Jira)" <ji...@apache.org> on 2021/06/23 18:27:00 UTC
[jira] [Created] (ARROW-13152) Plasma server hangs on Get requests
containing duplicate object IDs
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)