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MXS-1475 Update cache entry if originally present

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In case the entry in the cache can not be used because the hard
TTL has kicked in, we fetch the data and update the cache
irrespected of the value if @maxscale.cache.populate. That way
an entry that once was put in the cache, will remain in the cache
(as long as there is space).
This commit is contained in:
Johan Wikman
2018-03-15 09:55:48 +02:00
parent 4ce894d24d
commit 0ef902621d
1 changed files with 5 additions and 1 deletions
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6
server/modules/filter/cache/cachefiltersession.cc vendored
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@ -1080,7 +1080,11 @@ CacheFilterSession::routing_action_t CacheFilterSession::route_SELECT(cache_acti
if (routing_action == ROUTING_CONTINUE)
{
if (m_populate || m_refreshing)
// If we are populating or refreshing, or the result was discarded
// due to hard TTL having kicked in, then we fetch the result *and*
// update the cache. That is, as long as there is room in the cache
// an entry will stay there.
if (m_populate || m_refreshing || CACHE_RESULT_IS_DISCARDED(result))
{
m_state = CACHE_EXPECTING_RESPONSE;
}