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Posted to issues@ignite.apache.org by "Alexey Goncharuk (Jira)" <ji...@apache.org> on 2020/11/24 14:47:00 UTC
[jira] [Created] (IGNITE-13753) Non-thread-safe collection is used
for the list of registered MBeans in JmxMetricExporterSpi
Alexey Goncharuk created IGNITE-13753:
-----------------------------------------
Summary: Non-thread-safe collection is used for the list of registered MBeans in JmxMetricExporterSpi
Key: IGNITE-13753
URL: https://issues.apache.org/jira/browse/IGNITE-13753
Project: Ignite
Issue Type: Bug
Reporter: Alexey Goncharuk
{{MetricManager}} registry creation and remove listeners can be invoked concurrently (the only synchronization is via {{map.computeIfAbsent}} which provides key-level granularity.
As a result, some of the beans are lost and I get an occasional assertion on
{code}
boolean rmv = mBeans.remove(mbeanName);
assert rmv;
{code}
Changing the collection to a synchronized list should suffice.
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