同時處理與主機的多個連接

Question

如何同時處理與主機的多個連接？

Answer 1

從的nutch-default.xml中：

<property> 
    <name>fetcher.threads.fetch</name> 
    <value>10</value> 
    <description>The number of FetcherThreads the fetcher should use. 
    This is also determines the maximum number of requests that are 
    made at once (each FetcherThread handles one connection).</description> 
</property> 

<property> 
    <name>fetcher.threads.per.host</name> 
    <value>1</value> 
    <description>This number is the maximum number of threads that 
    should be allowed to access a host at one time.</description> 
</property> 

如上所述，連接的數量是最多等於線程的數目。第一個屬性控制連接的總數，第二個屬性控制每個主機的連接數 - 這是您需要設置的連接數。