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https://issues.apache.org/jira/browse/AVRO-2722?focusedWorklogId=664502&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-664502
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ASF GitHub Bot logged work on AVRO-2722:
----------------------------------------
Author: ASF GitHub Bot
Created on: 13/Oct/21 08:00
Start Date: 13/Oct/21 08:00
Worklog Time Spent: 10m
Work Description: martin-g opened a new pull request #1365:
URL: https://github.com/apache/avro/pull/1365
This avoids thread-safety issues.
### Jira
- [X] My PR addresses the following
[AVRO-2722](https://issues.apache.org/jira/browse/AVRO-2722/) issue
### Tests
- [ ] My PR does not add a test because I don't know how to reproduce it at
GitHub Actions (it has no Android ARM64 runners).
### Documentation
No need of documentation.
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Issue Time Tracking
-------------------
Worklog Id: (was: 664502)
Remaining Estimate: 0h
Time Spent: 10m
> impl/DataFile.cc use of boost::mt19937 for DataFileWriteBase::makeSync is not
> thread safe
> -----------------------------------------------------------------------------------------
>
> Key: AVRO-2722
> URL: https://issues.apache.org/jira/browse/AVRO-2722
> Project: Apache Avro
> Issue Type: Bug
> Components: c++
> Affects Versions: 1.9.1
> Environment: Issue can be reproduced in Linux with clang and on
> Android arm64 and armeabi with android NDK r19c.
> Reporter: Dan Schmitt
> Assignee: Martin Tzvetanov Grigorov
> Priority: Critical
> Time Spent: 10m
> Remaining Estimate: 0h
>
> The single instance of random is not thread safe, and can seg fault.
> It can be fixed with a global std::mutex next to the global boost::mt19937
> generator and a std::unique_lock in the method, or by creating the
> mersenne_twister_engine as a local variable in the function.
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