lib: defer grpc plugin initialization to post fork #6117
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When using the GRPC northbound plugin, initialization occurs at the frr_late_init hook. This is called before fork() when daemonizing (using -d). Because the GRPC library internally creates threads, this means our threads go away in the child process, so GRPC doesn't work when used with -d. Rectify this situation by deferring plugin init to after fork by scheduling a task on the threadmaster, since those are executed by the child. Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
💚 Basic BGPD CI results: SUCCESS, 0 tests failedResults table
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mjstapp
approved these changes
Mar 30, 2020
Continuous Integration Result: SUCCESSFULCongratulations, this patch passed basic tests Tested-by: NetDEF / OpenSourceRouting.org CI System CI System Testrun URL: https://ci1.netdef.org/browse/FRR-FRRPULLREQ-11516/ This is a comment from an automated CI system. Warnings Generated during build:Debian 10 amd64 build: Successful with additional warningsDebian Package lintian failed for Debian 10 amd64 build: |
rwestphal
approved these changes
Mar 30, 2020
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When using the GRPC northbound plugin, initialization occurs at the
frr_late_init hook. This is called before fork() when daemonizing (using
-d). Because the GRPC library internally creates threads, this means our
threads go away in the child process, so GRPC doesn't work when used
with -d. Rectify this situation by deferring plugin init to after fork
by scheduling a task on the threadmaster, since those are executed by
the child.
Signed-off-by: Quentin Young qlyoung@cumulusnetworks.com