Hi,
I start seeing this concurrency issue on save/load large session object. Did anybody had the same problem and found a solution to fix it? Below is a stack trace. Here is my configuration: resin 3.0.24, Linux, JDK 1.6 Thank you. [12:20:22.063] FileBacking.log: update cluster: test.xxxxxxx.com;dcaEE8dukDJF9_LAlRVcs length:5309265 [12:20:22.063] ClusterStoreManager.log: [app4] self-store(3) dcaEE8dukDJF9_LAlRVcs length=5309265 [12:20:22.063] AbstractHttpResponse.log: [app4, 12] HTTP/1.1 200 OK [12:20:22.063] AbstractHttpResponse.log: [app4, 12] Cache-Control: no-store, no-cache, post-check=0, pre-check=0 [12:20:22.063] AbstractHttpResponse.log: [app4, 12] Pragma: no-cache [12:20:22.063] AbstractHttpResponse.log: [app4, 12] Expires: Wed, 31 Dec 1969 23:59:59 GMT [12:20:22.063] AbstractHttpResponse.log: [app4, 12] Content-Type: text/html [12:20:22.063] AbstractHttpResponse.log: [app4, 12] Transfer-Encoding: chunked [12:20:22.063] ResponseStream.log: [12] write-chunk(7) [12:20:22.219] FileBacking.log: load local object: test.xxxxxxxx.com;dcaEE8dukDJF9_LAlRVcs [12:20:22.219] ClusterObject.log: java.io.UTFDataFormatException [12:20:22.219] at java.io.ObjectInputStream$BlockDataInputStream.readUTFSpan(ObjectInputSt ream.java:3082) [12:20:22.219] at java.io.ObjectInputStream$BlockDataInputStream.readUTFBody(ObjectInputSt ream.java:3007) [12:20:22.219] at java.io.ObjectInputStream$BlockDataInputStream.readUTF(ObjectInputStream .java:2820) [12:20:22.219] at java.io.ObjectInputStream.readString(ObjectInputStream.java:1599) [12:20:22.219] at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1320) [12:20:22.219] at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947) [12:20:22.219] at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871) [12:20:22.219] at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753 ) [12:20:22.219] at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) [12:20:22.219] at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947) [12:20:22.219] at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871) [12:20:22.219] at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753 ) [12:20:22.219] at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) [12:20:22.219] at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351) [12:20:22.219] at java.util.ArrayList.readObject(ArrayList.java:593) [12:20:22.219] at sun.reflect.GeneratedMethodAccessor1868.invoke(Unknown Source) [12:20:22.219] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor Impl.java:25) [12:20:22.219] at java.lang.reflect.Method.invoke(Method.java:597) [12:20:22.219] at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974) [12:20:22.219] at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849) [12:20:22.219] at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753 ) [12:20:22.219] at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) [12:20:22.219] at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947) [12:20:22.219] at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871) [12:20:22.219] at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753 ) [12:20:22.219] at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) [12:20:22.219] at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947) [12:20:22.219] at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871) [12:20:22.219] at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753 ) [12:20:22.219] at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) [12:20:22.219] at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947) [12:20:22.219] at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871) [12:20:22.219] at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753 ) [12:20:22.219] at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) [12:20:22.219] at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947) [12:20:22.219] at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871) [12:20:22.219] at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753 ) [12:20:22.219] at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) [12:20:22.219] at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351) [12:20:22.219] at java.util.ArrayList.readObject(ArrayList.java:593) [12:20:22.219] at sun.reflect.GeneratedMethodAccessor1868.invoke(Unknown Source) [12:20:22.219] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor Impl.java:25) [12:20:22.219] at java.lang.reflect.Method.invoke(Method.java:597) [12:20:22.219] at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974) [12:20:22.219] at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849) [12:20:22.219] at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753 ) [12:20:22.219] at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) [12:20:22.219] at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947) [12:20:22.219] at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871) [12:20:22.219] at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753 ) [12:20:22.219] at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) [12:20:22.219] at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351) [12:20:22.219] at com.caucho.server.session.SessionImpl.load(SessionImpl.java:898) [12:20:22.219] at com.caucho.server.session.SessionManager.load(SessionManager.java:1482) [12:20:22.219] at com.caucho.server.cluster.ClusterObject.load(ClusterObject.java:288) [12:20:22.219] at com.caucho.server.cluster.FileBacking.loadSelf(FileBacking.java:318) [12:20:22.219] at com.caucho.server.cluster.ClusterStore.load(ClusterStore.java:423) [12:20:22.219] at com.caucho.server.cluster.ClusterObject.load(ClusterObject.java:259) [12:20:22.219] at com.caucho.server.session.SessionImpl.load(SessionImpl.java:702) [12:20:22.219] at com.caucho.server.session.SessionManager.getSession(SessionManager.java: 1278) [12:20:22.219] at com.caucho.server.connection.AbstractHttpRequest.createSession(AbstractH ttpRequest.java:1448) [12:20:22.219] at com.caucho.server.connection.AbstractHttpRequest.getSession(AbstractHttp Request.java:1260) [12:20:22.219] at com.caucho.server.connection.AbstractHttpResponse.writeHeaders(AbstractH ttpResponse.java:1564) [12:20:22.219] at com.caucho.server.connection.ResponseStream.writeHeaders(ResponseStream. java:216) [12:20:22.219] at com.caucho.server.connection.ResponseStream.writeNext(ResponseStream.jav a:403) [12:20:22.219] at com.caucho.server.connection.ToByteResponseStream.flushByteBuffer(ToByte ResponseStream.java:518) [12:20:22.219] at com.caucho.server.connection.ToByteResponseStream.flushBuffer(ToByteResp onseStream.java:424) [12:20:22.219] at com.caucho.server.connection.ResponseStream.getBuffer(ResponseStream.jav a:225) [12:20:22.219] at com.caucho.vfs.Path.writeToStream(Path.java:1092) [12:20:22.219] at com.caucho.server.connection.AbstractResponseStream.sendFile(AbstractRes ponseStream.java:254) [12:20:22.219] at com.caucho.servlets.FileServlet.service(FileServlet.java:347) [12:20:22.219] at com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChai n.java:106) [12:20:22.219] at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFi lter.java:299) [12:20:22.219] at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain. java:70) [12:20:22.219] at com.caucho.server.cache.CacheFilterChain.doFilter(CacheFilterChain.java: 209) [12:20:22.219] at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.ja va:173) [12:20:22.219] at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.j ava:229) [12:20:22.219] at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:274) [12:20:22.219] at com.caucho.server.port.TcpConnection.run(TcpConnection.java:514) [12:20:22.219] at com.caucho.util.ThreadPool.runTasks(ThreadPool.java:520) [12:20:22.219] at com.caucho.util.ThreadPool.run(ThreadPool.java:442) [12:20:22.219] at java.lang.Thread.run(Thread.java:619) [12:20:22.219] [12:20:22.219] SessionImpl.log: reset session dcaEE8dukDJF9_LAlRVcs [12:20:22.219] FileBacking.log: update cluster: test.brokeroffice.com;dcaEE8dukDJF9_LAlRVcs length:10 Privileged/Confidential Information may be contained in this message. 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