There is no performance problems when the page loads without crashing the JVM, it loads quickly.
The JSP make calls to beans, and there are a couple of queries that are submitted to the database. The JDBC is in Java and there is no JNI calls made anywhere is the code. The weared thing is, why splitting the JSP file into two files fixes the problem? I filed a bug on the java's bug site with the following information, not sure if it will be helpful: Message from hotspot # # HotSpot Virtual Machine Error, Internal Error # Please report this error at # http://java.sun.com/cgi-bin/bugreport.cgi # # Error ID: 47454E45524154452F4F502D41500E435050084B 01 # # Problematic Thread: prio=5 tid=0x66daa8 nid=0x17 runnable # Stack trace for the failing thread (from the core file): current thread: t@23 =>[1] __sigprocmask(0x0, 0xd687e528, 0x0, 0x0, 0x0, 0x0), at 0xff369ab8 [2] _resetsig(0xff36c340, 0x0, 0x0, 0xd6881d78, 0xff37e000, 0x0), at 0xff35e50c [3] _sigon(0xd6881d78, 0xff385980, 0x6, 0xd687e5fc, 0xd6881d78, 0xd687e640), at 0xff35dcac [4] _thrp_kill(0x0, 0x17, 0x6, 0xff37e000, 0x17, 0xff2bc4a0), at 0xff360cc0 [5] raise(0x6, 0x0, 0x0, 0xffffffff, 0xff2bc40c, 0xd687e750), at 0xff24b190 [6] abort(0xff2b801c, 0xd687e750, 0x0, 0xfffffff8, 0x4, 0xd687e771), at 0xff2357bc [7] os::abort(0x1, 0xfe796000, 0x1, 0xfe796000, 0x66daa8, 0xd687e76c), at 0xfe6e7ac4 [8] report_error(0xdc, 0xd687eff4, 0x84b, 0xfe746da0, 0xfe7d1830, 0xfe796000), at 0xfe652c08 [9] report_fatal(0x84b, 0xfe796000, 0xfe748ed8, 0xd687fc3c, 0xfe7a7fdc, 0xfe796000), at 0xfe6524d8 [10] GenerateOopMap::error_work(0xfe796000, 0xfe749230, 0xd687fc3c, 0x0, 0xd687fbec, 0xfd9), at 0xfe660b98 [11] GenerateOopMap::report_error(0xd687ff1c, 0xfe749230, 0x4057, 0x4, 0xd687fcf4, 0x66daa8), at 0xfe660bcc [12] GenerateOopMap::expand_current_instr(0xd687ff1c, 0x4057, 0xfe796000, 0x4, 0xd687fcf4, 0x4057), at 0xfe662384 [13] GenerateOopMap::rewrite_load_or_store(0x2, 0xfe796000, 0x4, 0x2a, 0x11a, 0xd687fd68), at 0xfe6428f8 [14] GenerateOopMap::rewrite_refval_conflicts(0xd687ff1c, 0xfabf9610, 0x111d710, 0xfe796000, 0xfe7d307c, 0xfe7d3b2c), at 0xfe57c3b8 [15] GenerateOopMap::compute_map(0xfe79f720, 0xfa0f36dc, 0xfe796000, 0xffffffff, 0x1, 0x0), at 0xfe5751f0 [16] ResolveOopMapConflicts::do_potential_rewrite (0xd6880018, 0xd6880018, 0xd687ff1c, 0xffffffff, 0xfffffff8, 0xfa0f9a50), at 0xfe574b2c [17] Rewriter::rewrite_method(0xd6880018, 0xfe796000, 0xd688001c, 0x66daa8, 0xfe7d307c, 0xfe7d3b2c), at 0xfe56a940 [18] Rewriter::rewrite(0xfe7d3b28, 0xfe7d3b24, 0x1, 0x4, 0x8, 0xf8e45728), at 0xfe569e94 [19] instanceKlass::link_class_impl(0xf8c00af8, 0x66daa8, 0xd6880238, 0xfe796000, 0x66daa8, 0xd6880154), at 0xfe568d50 [20] instanceKlass::initialize_impl(0xd6880340, 0xfa0f9428, 0xfe796000, 0x66daa8, 0x66daa8, 0xd68802dc), at 0xfe580688 [21] instanceKlass::initialize(0xfa0f9428, 0x66daa8, 0x2815c0, 0xfe796000, 0x66daa8, 0xd688035c), at 0xfe580584 [22] JVM_NewInstance(0xfa0f9428, 0x66daa8, 0x66db2c, 0xfe796000, 0xfe7aa28c, 0x0), at 0xfe59a890 [23] 0xfb106528(0xfa0f95b8, 0xe0ed5848, 0x0, 0xad008, 0xf8c02f08, 0x0), at 0xfb106527 [24] 0xfb106328(0xfa0f95b8, 0xe0ed5848, 0xd6880624, 0xffffffff, 0xd9f70000, 0x0), at 0xfb106327 [25] 0xa4500(0xe0ed39b0, 0xe0ed5848, 0xd688069c, 0xafa48, 0x70, 0x0), at 0xa44ff [26] 0xa4500(0xe0ed39b0, 0xd688072c, 0xd6880730, 0xafa48, 0xf8d01a20, 0x0), at 0xa44ff [27] 0xfb1bd5b4(0xe0ed39b0, 0x1, 0xd68807bc, 0xad234, 0x0, 0x0), at 0xfb1bd5b3 [28] 0xa44bc(0xe0ed39b0, 0x140, 0x0, 0xafa48, 0xd9f70000, 0x0), at 0xa44bb [29] 0xa44bc(0xd94bd8e8, 0xd68808f0, 0xd68808f4, 0xaf998, 0xd9f70000, 0x0), at 0xa44bb [30] 0xa44bc(0xd94bd8e8, 0xa6508, 0xd6880998, 0xafaec, 0x2, 0x0), at 0xa44bb [31] 0xa4764(0xdf029328, 0xd68819c0, 0x66daa8, 0xafc24, 0xb6, 0xfa0edb48), at 0xa4763 [32] 0xa44bc(0xd94b7fa8, 0xd6880b60, 0xd6880b64, 0xad794, 0x10, 0x0), at 0xa44bb [33] 0xa44bc(0xd94b7fa8, 0xd6880bf8, 0xd6880bfc, 0xaf998, 0xd6880b24, 0x0), at 0xa44bb [34] 0xa44bc(0xd94b7fa8, 0xa6508, 0xfe796000, 0xaf998, 0x0, 0x0), at 0xa44bb [35] 0xa4764(0xda032240, 0xd6880d10, 0xd6880d14, 0xafc24, 0x1, 0x0), at 0xa4763 [36] 0xa44bc(0xda032240, 0xdfb7e2b0, 0xdfb7e3a0, 0xaf998, 0xf8d01a20, 0x0), at 0xa44bb [37] 0xfb34421c(0xda032240, 0xdfb7e2b0, 0xdfb7e3a0, 0xad234, 0x0, 0x0), at 0xfb34421b [38] 0xa44bc(0xda032240, 0x140, 0x0, 0xafaec, 0xd9f70000, 0x0), at 0xa44bb [39] 0xa44bc(0xd8d3ca68, 0xd6880f68, 0xd6880f6c, 0xaf998, 0xd9f70000, 0x0), at 0xa44bb [40] 0xa44bc(0xd8d3ca68, 0xa6508, 0xd6880ff8, 0xafaec, 0x2, 0x0), at 0xa44bb [41] 0xa4764(0xd8c268d0, 0xd68819c0, 0x66daa8, 0xafc24, 0xb6, 0xfa0e84c0), at 0xa4763 [42] 0xa44bc(0xd8c268d0, 0xd68819c0, 0x66daa8, 0xad794, 0xb6, 0xfa0e7c60), at 0xa44bb [43] 0xa44bc(0xd8c0c770, 0xd68811f0, 0xd68811f4, 0xad794, 0xd9f70000, 0x0), at 0xa44bb [44] 0xa44bc(0xd8c0c770, 0xa6508, 0xd6881284, 0xaf998, 0xfe79f180, 0x0), at 0xa44bb [45] 0xa44bc(0xd8c0c770, 0xffffffff, 0xffffffff, 0xafa48, 0x8, 0x0), at 0xa44bb [46] 0xa44bc(0xd8c0c770, 0xd68813b0, 0xd68813b4, 0xaf998, 0xd68812dc, 0x0), at 0xa44bb [47] 0xa44bc(0xd8c0c770, 0xa6508, 0xfe796000, 0xaf998, 0x0, 0x0), at 0xa44bb [48] 0xa4764(0xdd556398, 0xd68814c8, 0xd68814cc, 0xafc24, 0x0, 0x0), at 0xa4763 [49] 0xa44bc(0xdd556398, 0xdfb7e2b0, 0xdfb7e3a0, 0xaf998, 0xdd572f28, 0x0), at 0xa44bb [50] 0xfb34421c(0xdd556398, 0xdfb7e2b0, 0xdfb7e3a0, 0xac814, 0x5c3, 0x0), at 0xfb34421b [51] 0xa44bc(0xdd556398, 0xdfb7e2b0, 0xd688167c, 0xafaec, 0x1d, 0x0), at 0xa44bb [52] 0xa44bc(0xdad204c8, 0x3, 0xd688171c, 0xaf998, 0xd9f70000, 0x0), at 0xa44bb [53] 0xa44bc(0xdad204c8, 0xd68817c0, 0xdfb7bd60, 0xafaec, 0xdb025c00, 0x0), at 0xa44bb [54] 0xa44bc(0xdad20e60, 0xdaf61d78, 0xdfb7bd60, 0xaf998, 0x66daa8, 0xfe796000), at 0xa44bb [55] 0xfb1fe4f8(0xdafef310, 0xdfb7bd60, 0xd68819c0, 0xd6881850, 0xdb026370, 0x0), at 0xfb1fe4f7 [56] 0xa4764(0xd8e1c568, 0xa6508, 0xd6881954, 0xafc24, 0x66daa8, 0x0), at 0xa4763 [57] 0xa4764(0x0, 0x1, 0xfe7a2900, 0xafc24, 0x1e, 0xe), at 0xa4763 [58] 0xfe7cb3f4(0xd68819e0, 0xd6881c18, 0xa, 0xf8c16378, 0xa6508, 0xd6881b64), at 0xfe7cb3f3 [59] JavaCalls::call_helper(0xd6881c10, 0xfe796000, 0xd6881b5c, 0x66daa8, 0xa6508, 0xd6881c18), at 0xfe58162c [60] JavaCalls::call_virtual(0xf8c17000, 0xd6881b48, 0xd6881b4c, 0xfe796000, 0xd6881c10, 0xd6881b5c), at 0xfe5902c4 [61] JavaCalls::call_virtual(0xd6881c10, 0xd6881c0c, 0xd6881c08, 0xd6881bfc, 0xd6881bf4, 0x66daa8), at 0xfe590154 [62] thread_entry(0xf8c17000, 0x66daa8, 0xfe796000, 0xd6881d18, 0x1e, 0xe), at 0xfe5900dc [63] JavaThread::run(0xd6802000, 0xfe79fe9c, 0xfe796000, 0x80000, 0x66daa8, 0x80000), at 0xfe58fee8 [64] _start(0xfe796000, 0xfe265d18, 0x0, 0x5, 0x1, 0xfe401000), at 0xfe57fd0c -----Original Message----- From: Reynir H�bner [mailto:[EMAIL PROTECTED]] Sent: Tuesday, December 10, 2002 2:37 AM To: Tomcat Users List Subject: RE: Large JSP causes tomcat to crash with multiple users Hi, I am curious to know what is it you are doing with this JSP page ? If it's large but mostly static content (such as HTML tables etc) you can choose to keep the static content blocks in a file. There are many ways to improve jsp performance, but your problem sounds like you are doing something outside of the JVM that crashes, maybe execute JNI calls or something like that. Why does the jvm stop ? What kind of error messages do you get ? (check eventlog). I suggest to you that you upgrade the version of tomcat you are using to 4.1, and try again. hope it helps -reynir > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] > Sent: 10. desember 2002 01:42 > To: [EMAIL PROTECTED] > Subject: Large JSP causes tomcat to crash with multiple users > > > > Tomcat: 3.3.1 > JVM: Java HotSpot(TM) Client VM (build 1.3.1_02-b02, mixed mode) > > > > I just ran into a problem with one of the jsps I have. The > problem occurs with both using apache in between the browser > and tomcat or going directly from browser to tomcat. > > Running with one user, the page gets displayed successfully. > > Running with 3 users trying to the display the same jsp page causes > JVM(hotspot) to cash. > > I broke the jsp page into two jsp files and used a > jsp:include in one page to include the other. This seems to > have fixed the problem. > > I'm afraid that if the number of users increases, at some > point tomcat will crash again. > > Has anyone seem this problem? or can give an idea of what > could cause tomcat to crash. > > thanks in advance. > > -- > To unsubscribe, e-mail: > <mailto:tomcat-user-> [EMAIL PROTECTED]> > For > additional commands, > e-mail: <mailto:[EMAIL PROTECTED]> > > -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
