shared_client: fix fail-safe mechanism #15
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If a shared client exchange fell into the fail-safe timeout of one minute, but the handler loop (due to either an error, closing or a _very_ delayed response) would write to the now reader-less channel, it would block all future progress of this shared client. Prevent that from happening by buffering the channel for the one message it will receive. Fixes: 4e6b438 (shared client: add fail-safe mechanism for stuck requests.) Signed-off-by: David Bimmler <david.bimmler@isovalent.com>
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If a shared client exchange fell into the fail-safe timeout of one minute, but the handler loop (due to either an error, closing or a _very_ delayed response) would write to the now reader-less channel, it would block all future progress of this shared client. Prevent that from happening by buffering the channel for the one message it will receive. The corresponding, backportable change cilium/dns is cilium/dns#15. Signed-off-by: David Bimmler <david.bimmler@isovalent.com>
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If a shared client exchange fell into the fail-safe timeout of one minute, but the handler loop (due to either an error, closing or a _very_ delayed response) would write to the now reader-less channel, it would block all future progress of this shared client. Prevent that from happening by buffering the channel for the one message it will receive. The corresponding, backportable change cilium/dns is cilium/dns#15. Signed-off-by: David Bimmler <david.bimmler@isovalent.com>
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[ upstream commit 392821c ] If a shared client exchange fell into the fail-safe timeout of one minute, but the handler loop (due to either an error, closing or a _very_ delayed response) would write to the now reader-less channel, it would block all future progress of this shared client. Prevent that from happening by buffering the channel for the one message it will receive. The corresponding, backportable change cilium/dns is cilium/dns#15. Signed-off-by: David Bimmler <david.bimmler@isovalent.com> Signed-off-by: Jussi Maki <jussi@isovalent.com>
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[ upstream commit 392821c ] If a shared client exchange fell into the fail-safe timeout of one minute, but the handler loop (due to either an error, closing or a _very_ delayed response) would write to the now reader-less channel, it would block all future progress of this shared client. Prevent that from happening by buffering the channel for the one message it will receive. The corresponding, backportable change cilium/dns is cilium/dns#15. Signed-off-by: David Bimmler <david.bimmler@isovalent.com> Signed-off-by: Jussi Maki <jussi@isovalent.com>
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If a shared client exchange fell into the fail-safe timeout of one minute, but the handler loop (due to either an error, closing or a very delayed response) would write to the now reader-less channel, it would block all future progress of this shared client. Prevent that from happening by buffering the channel for the one message it will receive.
Fixes: 4e6b438 (shared client: add fail-safe mechanism for stuck requests.)