Igniters, we have faced with the following problem on one of our deployments.
Let's imagine that we have used IgniteCache with enabled PDS during the time: - hardware disc space has been occupied during growing up of an amount of data, e.g. 100Gb; - then, we removed non-actual data, e.g 50Gb, which became useless for us; - disc space stopped growing up with new data, but it was not released, and still took 100Gb, instead of expected 50Gb; Another use case: - a user extracts data from IgniteCache to store it in separate IgniteCache or another store; - disc still is occupied and the user is not able to store data in the different cache at the same cluster because of disc limitation; How can we help the user to free up the disc space, if an amount of data in IgniteCache has been reduced many times and will not be increased in the nearest future? AFAIK, we have mechanics of reusing memory pages, that allows us to use pages which have been allocated and stored removed data for storing new data. Are there any chances to shrink data and free up space on disc (with defragmentation if possible)? -- Best Regards, Vyacheslav D.
