Merge pull request #6 from AgoraLab/fix_process_z

Fix process z

Author: boxjan

collectors/plugins.d/plugins_d.c

@@ -358,6 +358,8 @@ void *pluginsd_main(void *ptr)
                 // it is not running
                 // allocate a new one, or use the obsolete one
                 if (unlikely(!cd)) {
+                    usleep(1000); // no reason here, but it can fix problem: charts exit and become Z process
+
                     cd = callocz(sizeof(struct plugind), 1);
 
                     snprintfz(cd->id, CONFIG_MAX_NAME, "plugin:%s", pluginname);