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Issues in the balancing of the SMOS ocean salinity trieval cost function
| Instrumentation Viewpoint
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Warning: mkdir(): Permission denied in /var/www/ojs/lib/pkp/classes/file/FileManager.php on line 424
Warning: file_put_contents(/SAN/files_ojs/usageStats/salt): Failed to open stream: No such file or directory in /var/www/ojs/lib/pkp/classes/statistics/PKPStatisticsHelper.php on line 158
Warning: filemtime(): stat failed for /SAN/files_ojs/usageStats/salt in /var/www/ojs/lib/pkp/classes/observers/listeners/LogUsageEvent.php on line 213
Warning: file_put_contents(/SAN/files_ojs/usageStats/salt): Failed to open stream: No such file or directory in /var/www/ojs/lib/pkp/classes/statistics/PKPStatisticsHelper.php on line 158
Warning: mkdir(): Permission denied in /var/www/ojs/lib/pkp/classes/file/FileManager.php on line 424
Warning: fopen(/SAN/files_ojs/usageStats/usageEventLogs/usage_events_20260926.log): Failed to open stream: No such file or directory in /var/www/ojs/lib/pkp/classes/observers/listeners/LogUsageEvent.php on line 104
Fatal error: Uncaught TypeError: flock(): Argument #1 ($stream) must be of type resource, false given in /var/www/ojs/lib/pkp/classes/observers/listeners/LogUsageEvent.php:105
Stack trace:
#0 /var/www/ojs/lib/pkp/classes/observers/listeners/LogUsageEvent.php(105): flock(false, 2)
#1 /var/www/ojs/lib/pkp/classes/observers/listeners/LogUsageEvent.php(53): PKP\observers\listeners\LogUsageEvent->logUsageEvent('{"time":"2026-0...')
#2 /var/www/ojs/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Events/Dispatcher.php(512): PKP\observers\listeners\LogUsageEvent->handle(Object(APP\observers\events\UsageEvent))
#3 /var/www/ojs/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Events/Dispatcher.php(319): Illuminate\Events\Dispatcher->Illuminate\Events\{closure}('APP\\observers\\e...', Array)
#4 /var/www/ojs/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Events/Dispatcher.php(299): Illuminate\Events\Dispatcher->invokeListeners('APP\\observers\\e...', Array, false)
#5 /var/www/ojs/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Foundation/helpers.php(505): Illuminate\Events\Dispatcher->dispatch(Object(APP\observers\events\UsageEvent))
#6 /var/www/ojs/pages/article/ArticleHandler.php(366): event(Object(APP\observers\events\UsageEvent))
#7 [internal function]: APP\pages\article\ArticleHandler->view(Array, Object(APP\core\Request))
#8 /var/www/ojs/lib/pkp/classes/core/PKPRouter.php(327): call_user_func(Array, Array, Object(APP\core\Request))
#9 /var/www/ojs/lib/pkp/classes/core/PKPPageRouter.php(249): PKP\core\PKPRouter->_authorizeInitializeAndCallRequest(Array, Object(APP\core\Request), Array, false)
#10 /var/www/ojs/lib/pkp/classes/core/Dispatcher.php(157): PKP\core\PKPPageRouter->route(Object(APP\core\Request))
#11 /var/www/ojs/lib/pkp/classes/core/PKPApplication.php(429): PKP\core\Dispatcher->dispatch(Object(APP\core\Request))
#12 /var/www/ojs/index.php(21): PKP\core\PKPApplication->execute()
#13 {main}
thrown in /var/www/ojs/lib/pkp/classes/observers/listeners/LogUsageEvent.php on line 105
