what i meant is the data is successfully uploaded, but the client restart for some reason. the data stored in memcache server need to be flushed. or other client my get the wrong data.
在 2014年9月3日星期三UTC+8下午3时04分59秒，Dormando写道： > > If a client is uploading something and it does not complete the upload, > the data will be dropped. > > Otherwise, no. > > On Wed, 3 Sep 2014, Xingui Shi wrote: > > > Hi, Is there any way to drop data add by a client when the client > aborted or exit normally? > > > > thanks. > > > > 在 2014年8月12日星期二UTC+8上午10时25分43秒，Dormando写道： > > > > > Hello there, > > > There he has a method to be able to remove items from the cache > using a regular expression on the key. For example we want to remove > > all the key as "my_key_ *?" > > > We try to parse all the slabs with the command "stats cachedump" > but our slabs contain several pages and it is impossible to recover > > all the elements! > > > Thank you. > > > > > > > Hi, > > > > The common way to do this, instantly, and atomically across your > entire > > memcached cluster is via namespacing: > > > http://code.google.com/p/memcached/wiki/NewProgrammingTricks#Namespacing > > > > You take a tradeoff: before I look up my key, I fetch a side key > which > > contains the current prefix. Then I add that prefix to my normal > key and > > do the lookup. When you want to invalidate all keys with the same > prefix, > > you incr or otherwise update the prefix. The old keys will fall > out of the > > LRU and your clients will no longer access them. > > > > This is *much* more efficient than any wrangling around with > scanning and > > parsing keys. That only gets worse as you get a larger cluster, > while > > namespacing stays at a consistent speed. > > > > Does this match what you're looking for, or did you have some > specific > > requirements? If so, please give more detail for your problem. > > > > -- > > > > --- > > You received this message because you are subscribed to the Google > Groups "memcached" group. > > To unsubscribe from this group and stop receiving emails from it, send > an email to [email protected] <javascript:>. > > For more options, visit https://groups.google.com/d/optout. > > > > -- --- You received this message because you are subscribed to the Google Groups "memcached" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
