Comments (3)
duthchao
commented on August 22, 2024
i am sorry for my pour english.Thanks to JDBM3,it really helps me a lot. but for now. the :
java.lang.OutOfMemoryError: Map failed
at sun.nio.ch.FileChannelImpl.map0(Native Method)
This problem will drive me mad! I can't expand my computer's memory,nor the win 7 os.I think changing DBMaker set will help somehow. In addition,the entry's Data Structure which inserted into BTree is Entry<String,HashSet>. The total number of entries is about 520000.
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jankotek
commented on August 22, 2024
JDBM3 is unsupported. Please move to MapDB.
Two ideas:
- HashSet[String] value must be immutable. So do not add new elements to hash set if it is already in BTree
- at sun.nio.ch.FileChannelImpl.map0(Native Method) Memory mapped files are limited to 2GB on 32bit systems. So use 64bit, or use slower RAF files.
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duthchao
commented on August 22, 2024
Thank you for sparing a time to reply me.RAF files did help.
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Related Issues (20)
- Not Serializable Exception HOT 1
- Corruption of index files (double get and IndexOutOfBounds errors) HOT 8
- Found setting where I lose part of a List value 'silently' HOT 1
- DB.defrag(false) ALWAYS increases the size of i.0 file HOT 1
- I'm confused about the record, slot, page, physical and logical list. Is there any document?
- Not working with JDK11
- BTree.java is a b plus tree or b tree?
- is someway to repair corrupt data file ? HOT 1
- JDBM and Scala HOT 5
- TreeMap#size() returns wrong values after rollback
- DBMaker#openFile should take a "File" as argument HOT 1
- Support serializing/deserializing Hadoop keys and values HOT 1
- java.lang.OutOfMemoryError: Map failed HOT 2
- NPE on Array deserialization
- floorEntry on BTreeMap behaves incorrectly on border cases
- Null retrieval of inserted keys HOT 1
- Unable to add an element to the beginning of a list HOT 1
- Does not work with JodaTime
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