tokyo-cabinet | 易学教程

Python Table engine binding for Tokyo Cabinet

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问题 I am looking for python bindings for Table engine of Tokyo cabinet. I tried Pytc but can only find Hash and B-tree engine support. Is there any other bindings available? 回答1: Here is an implementation of search of table engine using PyTyrant: http://github.com/ericflo/pytyrant/tree/master 回答2: I was in contact with the author of tc and he told me the following: Currently, the table (tdb) driver exist in the master branch (unit tests) and the fdb driver is being developed in a separate branch.

Why does tokyo tyrant slow down exponentially even after adjusting bnum?

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问题 Has anyone successfully used Tokyo Cabinet / Tokyo Tyrant with large datasets? I am trying to upload a subgraph of the Wikipedia datasource. After hitting about 30 million records, I get exponential slow down. This occurs with both the HDB and BDB databases. I adjusted bnum to 2-4x the expected number of records for the HDB case with only a slight speed up. I also set xmsiz to 1GB or so but ultimately I still hit a wall. It seems that Tokyo Tyrant is basically an in memory database and after

Java: object to byte[] and byte[] to object converter (for Tokyo Cabinet)

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I need to convert objects to a byte[] to be stored in the Tokyo Cabinet key-value store. I also need to unbyte the byte[] to an Object when reading from the key-value store. Are there any packages out there that will help me with this task? Or would the best solution to implement it myself? public static byte[] serialize(Object obj) throws IOException { ByteArrayOutputStream out = new ByteArrayOutputStream(); ObjectOutputStream os = new ObjectOutputStream(out); os.writeObject(obj); return out.toByteArray(); } public static Object deserialize(byte[] data) throws IOException,

How to bundle a native library and a JNI library inside a JAR?

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The library in question is Tokyo Cabinet . I want is to have the native library, JNI library, and all Java API classes in one JAR file to avoid redistribution headaches. There seems to be an attempt at this at GitHub , but It does not include the actual native library, only JNI library. It seems to be specific to Leiningen 's native dependencies plugin (it won't work as a redistributable). The question is, can I bundle everything in one JAR and redistribute it? If yes, how? P.S.: Yes, I realize it may have portability implications. kwo It is possible to create a single JAR file with all

Java: object to byte[] and byte[] to object converter (for Tokyo Cabinet)

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问题 I need to convert objects to a byte[] to be stored in the Tokyo Cabinet key-value store. I also need to unbyte the byte[] to an Object when reading from the key-value store. Are there any packages out there that will help me with this task? Or would the best solution to implement it myself? 回答1: public static byte[] serialize(Object obj) throws IOException { ByteArrayOutputStream out = new ByteArrayOutputStream(); ObjectOutputStream os = new ObjectOutputStream(out); os.writeObject(obj);