Mesos includes various example test frameworks written in C++, Java, and Python. They can be used to verify that the cluster is configured properly. The following test framework is written in C++, and it runs five sample applications. We will run it using the following command:
ubuntu@master:~/mesos/build/src $ ./test-framework --master=master:5050 I1228 08:53:13.303910 6044 sched.cpp:137] Version: 0.21.0 I1228 08:53:13.312556 6065 sched.cpp:234] New master detected at master@master :5050 I1228 08:53:13.313287 6065 sched.cpp:242] No credentials provided. Attempting to register without authentication I1228 08:53:13.316956 6061 sched.cpp:408] Framework registered with 20141228-085231-251789322-5050-5407-0001 Registered! Received offer 20141228-085231-251789322-5050-5407-O3 with mem(*):1961; disk(*):35164; ports(*):[31000-32000]; cpus(*):2 Launching task 0 using offer 20141228-085231-251789322-5050-5407-O3 Launching task 1 using offer 20141228-085231-251789322-5050-5407-O3 Task 0 is in state TASK_RUNNING Task 0 is in state TASK_FINISHED Task 1 is in state TASK_RUNNING Task 1 is in state TASK_FINISHED Received offer 20141228-085231-251789322-5050-5407-O4 with mem(*):1961; disk(*):35164; ports(*):[31000-32000]; cpus(*):2 Launching task 2 using offer 20141228-085231-251789322-5050-5407-O4 Launching task 3 using offer 20141228-085231-251789322-5050-5407-O4 Task 2 is in state TASK_RUNNING Task 2 is in state TASK_FINISHED Task 3 is in state TASK_RUNNING Task 3 is in state TASK_FINISHED Received offer 20141228-085231-251789322-5050-5407-O5 with mem(*):1961; disk(*):35164; ports(*):[31000-32000]; cpus(*):2 Launching task 4 using offer 20141228-085231-251789322-5050-5407-O5 Task 4 is in state TASK_RUNNING Task 4 is in state TASK_FINISHED I1228 08:53:15.337805 6059 sched.cpp:1286] Asked to stop the driver I1228 08:53:15.338147 6059 sched.cpp:752] Stopping framework '20141228-085231-251789322-5050-5407-0001' I1228 08:53:15.338543 6044 sched.cpp:1286] Asked to stop the driver
Here the output shows the framework connected to the master and receives the resource offers from the master. It also shows the various states of the tasks it has launched. The Java example framework is included in the src/example/java folder:
ubuntu@master:~/mesos/build/src/examples/java $ ./test-framework master:5050 I1228 08:54:39.290570 7224 sched.cpp:137] Version: 0.21.0 I1228 08:54:39.302083 7250 sched.cpp:234] New master detected at master@master:5050 I1228 08:54:39.302613 7250 sched.cpp:242] No credentials provided. Attempting to register without authentication I1228 08:54:39.307786 7250 sched.cpp:408] Framework registered with 20141228-085231-251789322-5050-5407-0002 Registered! ID = 20141228-085231-251789322-5050-5407-0002 Received offer 20141228-085231-251789322-5050-5407-O6 with cpus: 2.0 and mem: 1961.0 Launching task 0 using offer 20141228-085231-251789322-5050-5407-O6 Launching task 1 using offer 20141228-085231-251789322-5050-5407-O6 Status update: task 1 is in state TASK_RUNNING Status update: task 0 is in state TASK_RUNNING Status update: task 1 is in state TASK_FINISHED Finished tasks: 1 Status update: task 0 is in state TASK_FINISHED Finished tasks: 2 Received offer 20141228-085231-251789322-5050-5407-O7 with cpus: 2.0 and mem: 1961.0 Launching task 2 using offer 20141228-085231-251789322-5050-5407-O7 Launching task 3 using offer 20141228-085231-251789322-5050-5407-O7 Status update: task 2 is in state TASK_RUNNING Status update: task 2 is in state TASK_FINISHED Finished tasks: 3 Status update: task 3 is in state TASK_RUNNING Status update: task 3 is in state TASK_FINISHED Finished tasks: 4 Received offer 20141228-085231-251789322-5050-5407-O8 with cpus: 2.0 and mem: 1961.0 Launching task 4 using offer 20141228-085231-251789322-5050-5407-O8 Status update: task 4 is in state TASK_RUNNING Status update: task 4 is in state TASK_FINISHED Finished tasks: 5 I1228 08:54:41.788455 7248 sched.cpp:1286] Asked to stop the driver I1228 08:54:41.788652 7248 sched.cpp:752] Stopping framework '20141228-085231-251789322-5050-5407-0002' I1228 08:54:41.789008 7224 sched.cpp:1286] Asked to stop the driver
Similarly, the Python example framework is included in the src/example/python folder and shows frameworkId and the various tasks states:
ubuntu@master:~/mesos/build/src/examples/python $./test-framework master:5050 I1228 08:55:52.389428 8516 sched.cpp:137] Version: 0.21.0 I1228 08:55:52.422859 8562 sched.cpp:234] New master detected at master@master:5050 I1228 08:55:52.424178 8562 sched.cpp:242] No credentials provided. Attempting to register without authentication I1228 08:55:52.428395 8562 sched.cpp:408] Framework registered with 20141228-085231-251789322-5050-5407-0003 Registered with framework ID 20141228-085231-251789322-5050-5407-0003 Received offer 20141228-085231-251789322-5050-5407-O9 with cpus: 2.0 and mem: 1961.0 Launching task 0 using offer 20141228-085231-251789322-5050-5407-O9 Launching task 1 using offer 20141228-085231-251789322-5050-5407-O9 Task 0 is in state TASK_RUNNING Task 1 is in state TASK_RUNNING Task 0 is in state TASK_FINISHED Received message: 'data with a \x00 byte' Task 1 is in state TASK_FINISHED Received message: 'data with a \x00 byte' Received offer 20141228-085231-251789322-5050-5407-O10 with cpus: 2.0 and mem: 1961.0 Launching task 2 using offer 20141228-085231-251789322-5050-5407-O10 Launching task 3 using offer 20141228-085231-251789322-5050-5407-O10 Task 2 is in state TASK_RUNNING Task 2 is in state TASK_FINISHED Task 3 is in state TASK_RUNNING Task 3 is in state TASK_FINISHED Received message: 'data with a \x00 byte' Received message: 'data with a \x00 byte' Received offer 20141228-085231-251789322-5050-5407-O11 with cpus: 2.0 and mem: 1961.0 Launching task 4 using offer 20141228-085231-251789322-5050-5407-O11 Task 4 is in state TASK_RUNNING Task 4 is in state TASK_FINISHED All tasks done, waiting for final framework message Received message: 'data with a \x00 byte' All tasks done, and all messages received, exiting I1228 08:55:54.136085 8561 sched.cpp:1286] Asked to stop the driver I1228 08:55:54.136147 8561 sched.cpp:752] Stopping framework '20141228-085231-251789322-5050-5407-0003' I1228 08:55:54.136261 8516 sched.cpp:1286] Asked to stop the driver