Issue #3117465: Manage static caches instead of removing the memory limit

usage/project_usage.drush.inc

@@ -92,13 +92,14 @@ function project_usage_retrieve_metadata() {
       $machine_name_id[$bundle] = $fields['field_project_machine_name']['field_id'];
     }
     if (isset($result['node'])) {
-      foreach (array_chunk($result['node'], 100) as $projects) {
+      foreach (array_chunk($result['node'], 200) as $projects) {
         foreach ($projects as $project) {
           field_attach_load('node', array($project->nid => $project), FIELD_LOAD_CURRENT, array('field_id' => $machine_name_id[$project->type]));
           $project_name = $project->field_project_machine_name[LANGUAGE_NONE][0]['value'];
           $projnames[$project->nid] = $project_name;
           $projnids[$project_name] = $project->nid;
         }
+        drupal_static_reset();
       }
     }
 
@@ -108,13 +109,14 @@ function project_usage_retrieve_metadata() {
       ->entityCondition('bundle', project_release_release_node_types())
       ->execute();
     if (isset($result['node'])) {
-      foreach (array_chunk(array_keys($result['node']), 100) as $releases) {
+      foreach (array_chunk(array_keys($result['node']), 200) as $releases) {
         foreach (node_load_multiple($releases, array(), TRUE) as $release) {
           $project_name = $projnames[$release->field_release_project[LANGUAGE_NONE][0]['target_id']];
           $releasedata[$project_name]['projectname'] = $project_name;
           $releasedata[$project_name]['project_nid'] = $release->field_release_project[LANGUAGE_NONE][0]['target_id'];
           $releasedata[$project_name][$release->field_release_version[LANGUAGE_NONE][0]['value']]['release_nid'] = $release->nid;
         }
+        drupal_static_reset();
       }
     }
 
@@ -138,7 +140,6 @@ function drush_project_usage_import_usage_stats($week) {
     $count_file_path = variable_get('project_usage_count_file_path', '/var/log/updatestats/counts');
   }
 
-  ini_set('memory_limit', '-1');
   $metadata = project_usage_retrieve_metadata();
 
   drush_log(dt('Reading usage counts.'));