private void checkThreads() {
Map<Thread, Long> requestThreads = new HashMap<>();
synchronized (_requestThreads) {
requestThreads.putAll(_requestThreads);
}
if (!requestThreads.isEmpty()) {
int deadlocksCount = 0;
Map<Thread, StackTraceElement[]> traces = null;
for (Thread thread : requestThreads.keySet()) {
Long time = requestThreads.get(thread);
if (time != null) {
time = System.currentTimeMillis() - time;
if (time > _maximumRequestWarnTime / 2 && _warnTraces.get(thread) == null) {
if (traces == null) {
traces = Thread.getAllStackTraces();
}
Map<Thread, String> names = getCurrentThreadNames(traces.keySet());
_warnTraces.put(thread, traces);
_warnTracesNames.put(thread, names);
}
if (time > _maximumRequestErrorTime / 2 && _errorTraces.get(thread) == null) {
if (traces == null) {
traces = Thread.getAllStackTraces();
}
Map<Thread, String> names = getCurrentThreadNames(traces.keySet());
_errorTraces.put(thread, traces);
_errorTracesNames.put(thread, names);
}
if (time > _maximumRequestFatalTime && _fatalTraces.get(thread) == null) {
if (traces == null) {
traces = Thread.getAllStackTraces();
}
Map<Thread, String> names = getCurrentThreadNames(traces.keySet());
_fatalTraces.put(thread, traces);
_fatalTracesNames.put(thread, names);
StringBuilder sb = new StringBuilder();
sb.append("Request is taking too long, possible deadlock: ");
sb.append(time);
sb.append(" ms ");
sb.append(stringFromTracesAndNames(traces, names));
sb.append("EC info:\n");
sb.append(ERXEC.outstandingLockDescription());
sb.append("OSC info:\n");
sb.append(ERXObjectStoreCoordinator.outstandingLockDescription());
log.error(sb.toString());
deadlocksCount++;
}
}
}
listener.deadlock(deadlocksCount);
}
}
/**
* Returns a list of the traces of open editing context locks. This is only useful if
* er.extensions.ERXApplication.traceOpenEditingContextLocks is enabled and
* er.extensions.ERXOpenEditingContextLocksPassword is set.
*
* @return list of lock traces
*/
public WOActionResults showOpenEditingContextLockTracesAction() {
if (canPerformActionWithPasswordKey("er.extensions.ERXOpenEditingContextLockTracesPassword")) {
ERXStringHolder result = pageWithName(ERXStringHolder.class);
result.setEscapeHTML(false);
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
pw.println("<pre>");
pw.println(ERXEC.outstandingLockDescription());
pw.println("</pre>");
pw.println("<hr>");
pw.println("<pre>");
pw.println(ERXObjectStoreCoordinator.outstandingLockDescription());
pw.println("</pre>");
pw.close();
result.setValue(sw.toString());
return result;
}
return forbiddenResponse();
}