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Mantis - Resin
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| ID: | Category: | Severity: | Reproducibility: | Date Submitted: | Last Update: |
| 1351 | minor | always | 09-18-06 09:13 | 02-12-07 10:39 | |
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| Reporter: | ferg | Platform: | |||
| Assigned To: | ferg | OS: | |||
| Priority: | normal | OS Version: | |||
| Status: | closed | Product Version: | |||
| Product Build: | Resolution: | fixed | |||
| Projection: | none | ||||
| ETA: | none | Fixed in Version: | 3.1.1 | ||
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| Summary: | 0001351: improved DOS support | ||||
| Description: |
(rep by Matthias Jiderhamn) We are having some trouble with recurring DDoS/DoS attacks on one of our Resin servers. While being attacked, it seems most of the threads in the thread pool are connected but waiting for request input inside JNI code: com.caucho.vfs.JniStream.readNative(Native Method) com.caucho.vfs.JniStream.read(JniStream.java:98) com.caucho.vfs.ReadStream.readBuffer(ReadStream.java:922) com.caucho.vfs.ReadStream.waitForRead(ReadStream.java:289) com.caucho.server.port.TcpConnection.run(TcpConnection.java:386) com.caucho.util.ThreadPool.runTasks(ThreadPool.java:507) com.caucho.util.ThreadPool.run(ThreadPool.java:433) java.lang.Thread.run(Thread.java:595) Could setting a lower read-timeout (http://www.caucho.com/resin-3.0/config/tuning.xtp#Timeouts) [^] ease the effect? What would be sensible values? |
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