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Global lookupjoin deadlock if some channels stopped before RHS is read

Description

In a multi-channel setup, if the RHS is stopped before it is used, but other channels require it, then the processing stops too early, and causes a deadlock.
Need to change it so that if any channels are not stopped continue to prepare rhs.

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Jacob Cobbett-Smith June 16, 2021 at 12:18 PM
Edited

NB: this is an old bug and a race condition, but exposed by combinegroup being implemented in 8.0 (https://hpccsystems.atlassian.net/browse/HPCC-25532)

Fixed
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Details

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Pull Request URL

https://github.com/hpcc-systems/HPCC-Platform/pull/15062
https://github.com/hpcc-systems/HPCC-Platform/pull/15062

Created June 16, 2021 at 11:43 AM
Updated June 17, 2021 at 3:29 PM
Resolved June 17, 2021 at 3:29 PM

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