multithreading - In Java, thread hangs in SocketRead0, what can I do? -


i'm developing webcrawler, after short time executing (minutes), threads stop work. running debugger, found stop in socketread0.

this occurs when thread download content of page httpurlconnection.getinputstream().

i don't know causes this, think associated multithreading.

someone knows how solve or avoid this?

i'm not using pool of httpurlconnection yet beucase don't know how do.

conn = (httpurlconnection) new url(url).openconnection(); conn.setinstancefollowredirects(true); conn.connect(); countinginputstream content;  try {     content = new countinginputstream(conn.getinputstream());     //processing of content     content.close();     return true;     } catch (exception e) {         return false;     }

you need set socket read timeout on connection. cause throw exception instead of hanging after specified time period.

http://download.oracle.com/javase/1.5.0/docs/api/java/net/urlconnection.html#setreadtimeout(int)


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