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Posted to issues@nifi.apache.org by "Dániel Bakai (Jira)" <ji...@apache.org> on 2020/04/09 14:17:00 UTC
[jira] [Updated] (MINIFICPP-839) Multiple memory leaks because of
shared_ptr cycles
[ https://issues.apache.org/jira/browse/MINIFICPP-839?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dániel Bakai updated MINIFICPP-839:
-----------------------------------
Fix Version/s: (was: 0.8.0)
1.0.0
> Multiple memory leaks because of shared_ptr cycles
> --------------------------------------------------
>
> Key: MINIFICPP-839
> URL: https://issues.apache.org/jira/browse/MINIFICPP-839
> Project: Apache NiFi MiNiFi C++
> Issue Type: Bug
> Reporter: Dániel Bakai
> Priority: Blocker
> Labels: ReloadValidation
> Fix For: 1.0.0
>
> Time Spent: 1h 50m
> Remaining Estimate: 0h
>
> There seems to be a Connection<->Processor shared_ptr cycle which means that the Processors never get destructed.
> This causes leaks in reloads and in tests.
> There are also other cycles causing leaks:
> * Connection <-> FlowFile (this seems to be partially mitigated by Connection::drain(), but not entirely)
> * ResourceClaim <-> VolatileContentRepository
> * VolatileContentRepository <-> VolatileContentRepository (capturing a shared_ptr into a thread func and detaching the thread)
> * FlowController <- > SchedulingAgent (TimerDrivenSchedulingAgent, EventDrivenSchedulingAgent, CronDrivenSchedulingAgent) and even FlowController <- > util::ThreadPool because of this
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