JMeter错误分析

今天在用JMeter做性能测试的时候，模拟了100个用户去做同一个动作的时候出现了一个错误，经过查找，发现出错的代码，应该是JMeter的Bug.

 java.io.IOException: missing CR
 at sun.net.www.http.ChunkedInputStream.processRaw(ChunkedInputStream.java:378)
 at sun.net.www.http.ChunkedInputStream.readAheadNonBlocking(ChunkedInputStream.java:493)
 at sun.net.www.http.ChunkedInputStream.readAhead(ChunkedInputStream.java:584)
 at sun.net.www.http.ChunkedInputStream.available(ChunkedInputStream.java:692)
 at java.io.FilterInputStream.available(FilterInputStream.java:142)
 at java.io.BufferedInputStream.read(BufferedInputStream.java:325)
 at java.io.FilterInputStream.read(FilterInputStream.java:90)
 at org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.readResponse(HTTPSamplerBase.java:1594)
 at org.apache.jmeter.protocol.http.sampler.HTTPSampler.readResponse(HTTPSampler.java:253)
 at org.apache.jmeter.protocol.http.sampler.HTTPSampler.sample(HTTPSampler.java:463)
 at org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.sample(HTTPSamplerBase.java:1021)
 at org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.sample(HTTPSamplerBase.java:1007)
 at org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:290)
 at java.lang.Thread.run(Thread.java:619)

问题出在ChunkedInputStream.java的代码的processRaw()中，由于没有等到'\r'标记，所以报了这个错：
                 /**
                 * Awaiting CRLF after the chunk
                 */
                case STATE_AWAITING_CHUNK_EOL:
                    /* not available yet */
                    if (rawPos + 1 >= rawCount) {
                        return;
                    }

                    if (rawData[rawPos] != '\r') {
                        error = true;
                        throw new IOException("missing CR");
                    }
                    if (rawData[rawPos+1] != '\n') {
                        error = true;
                        throw new IOException("missing LF");
                    }
                    rawPos += 2;

调高Tomcat的内存，这个问题不会再出现。