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Manual
78

General Settings and Logging

above. Using RAM is much faster than using temporary files. Therefore, temporary files are only used
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6

Soft Reference Object Cache Recommendation

be cached until the Java Virtual Machine (JVM) does a full Garbage Collection (GC) when heap RAM gets low ... when the byte[] only needs to be read and sits in the cache until more heap RAM is needed. @Override ... " to see RAM block from GC by those instances, then select one of those instances to view
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5

Object DB In memory : without Filestore

, by using a RAM drive.       At the moment, ObjectDB doesn't support pure in memory mode, but it still can be used completely in memory with no hard drive, by using a RAM drive.       can u ... above, although ObjectDB does not support in memory mode, you can use a RAM drive. i.e. install a RAM drive
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5

in-memory and on-disk support?

on a RAM disk / RAM drive. Both databases can be managed in embedded (in process) mode with no TCP ... for the reply. RAM Disk isn't really ideal as a filesystem is going to make inefficient use of my memory ... again. Ben   Actually, a RAM drive provides excellent performance and because ObjectDB uses a single file
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4

Occasionally slow requests in load testing

 processing => cache value. More RAM on the machine. Using a dedicated disk only for the odb file ... than the available RAM a natural decrease in performance is expected. Hi, Thanks for your response.  Smaller ... write operation? Machine has much more free RAM than database ever uses. The max heap size
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3

Cache usage

at the heap dump we suspect that the cache is really used (see heap dump attached), the RAM allocated ... addition to this cache, the OS manages its own cache and can use all the free RAM for database file pages, so if you have sufficient free RAM it is expected to be used anyway. Query cache (query-cache
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3

ObjectDB shuts down

starts to kill processes if it runs out of memory, in order to keep the necessary amount of RAM ... too much memory (out of the total available), thus CentOS was killing it. We monitored the DB server RAM usage and it is max 2%, server has 16GB RAM altough it is a 32bit CentOS. Measurment
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3

RT Java application recording into 100DB run OOM after a few hours.

it on a VPS with about 4GB of RAM. 1/ I use the default objectDb.conf (i mean i dont use any ... too much? Is there something in object.conf that i should tweak? I think I need to understand how the RAM is managed by ... , so it can easily exceeds your VPS RAM. If you must keep 100 databases open concurrently then you will have to reduce cache sizes, etc. EKK
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2

Empty temporary dat files in the temp folder

you mean high RAM usage in addition to these files?     Hello, with memory (in the title) we mean the unexpected high disk usage of the *.dat files, not RAM. I prepared a TestCase to demonstrate the behavior
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2

In memory processing for ObjectDB

memory mode by using a RAM drive. However, high performance is also expected when using ObjectDB on an ordinary drive with a large cache, or if large RAM is available and used by the internal