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Diffstat (limited to 'postmortem/2019-06-02-exchange-caching.txt')
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1 files changed, 29 insertions, 0 deletions
diff --git a/postmortem/2019-06-02-exchange-caching.txt b/postmortem/2019-06-02-exchange-caching.txt new file mode 100644 index 0000000..6a739ee --- /dev/null +++ b/postmortem/2019-06-02-exchange-caching.txt @@ -0,0 +1,29 @@ +# Exchange Wire Caching + + +## Issue Summary + +When demoing Taler to an audience, sometimes withdrawing or other operations +fail. This can happen even with a fresh wallet. + + +## Root Cause + +The browser caches the /keys and /wire response for a long time, even when the +wallet is re-installed. + +Usually the cache expiration is set to when available denominations or signing +keys are expected to change. This can be a rather long time. We often have format changes +or re-deploys with different keys in-between. + +## Remediation and Prevention + +For demo and test, the exchange shall use shorter expiration times. +(https://bugs.gnunet.org/view.php?id=5747) + +To force re-downloading of the exchange's information, we will implement +a client-version parameter to break the browser's cache. +(https://bugs.gnunet.org/view.php?id=5745) + +## Discussion + |