perfSONAR User Q&A and Other Discussion

[Szymon Trocha <>]

Hi Johann,

W dniu 10.05.2023 o 14:59, Johann Hugo pisze:

Cassandra looks fine

tail -F /var/log/cassandra/cassandra.log

        at org.apache.cassandra.io.sstable.SSTableReader.openMetadata(SSTableReader.java:241)
        at org.apache.cassandra.io.sstable.SSTableReader.open(SSTableReader.java:204)
        at org.apache.cassandra.io.sstable.SSTableReader.open(SSTableReader.java:193)
        at org.apache.cassandra.io.sstable.SSTableReader$1.run(SSTableReader.java:280)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:750)
 INFO 14:43:55,826 Opening /var/lib/cassandra/data/esmond/raw_data/esmond-raw_data-jb-65184 (168418794 bytes)

I'm not sure Cassandra looks fine. The above is the end of longer java exception.

what does "systemctl status cassandra" say ?

Esmond is running

[root@perf-cm ~]# tail -F /var/log/esmond/esmond.log
2023-05-03 00:30:07,079 [INFO] /usr/lib/esmond/esmond/cassandra.py: Checking/creating column families
2023-05-03 00:30:07,081 [INFO] /usr/lib/esmond/esmond/cassandra.py: Schema check done
2023-05-03 00:30:07,094 [INFO] /usr/lib/esmond/esmond/cassandra.py: Connected to ['localhost:9160']

Django is not happy

tail -F /var/log/esmond/django.log
  Traceback (most recent call last):

  File "/usr/lib/esmond/lib/python3.6/site-packages/django/core/handlers/exception.py", line 41, in inner
    response = get_response(request)
  File "/usr/lib/esmond/lib/python3.6/site-packages/django/core/handlers/base.py", line 249, in _legacy_get_response
    response = self._get_response(request)
  File "/usr/lib/esmond/lib/python3.6/site-packages/django/core/handlers/base.py", line 187, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "/usr/lib/esmond/lib/python3.6/site-packages/django/core/handlers/base.py", line 185, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/usr/lib/esmond/lib/python3.6/site-packages/django/views/decorators/csrf.py", line 58, in wrapped_view
    return view_func(*args, **kwargs)
  File "/usr/lib/esmond/lib/python3.6/site-packages/rest_framework/viewsets.py", line 116, in view
    return self.dispatch(request, *args, **kwargs)
  File "/usr/lib/esmond/lib/python3.6/site-packages/rest_framework/views.py", line 495, in dispatch
    response = self.handle_exception(exc)
  File "/usr/lib/esmond/lib/python3.6/site-packages/rest_framework/views.py", line 455, in handle_exception
    self.raise_uncaught_exception(exc)
  File "/usr/lib/esmond/lib/python3.6/site-packages/rest_framework/views.py", line 492, in dispatch
    response = handler(request, *args, **kwargs)
  File "/usr/lib/esmond/esmond/api/perfsonar/api_v2.py", line 921, in update
    check_connection()
  File "/usr/lib/esmond/esmond/api/perfsonar/api_v2.py", line 75, in check_connection
    db = CASSANDRA_DB(get_config(get_config_path()))
  File "/usr/lib/esmond/esmond/cassandra.py", line 135, in __init__
    "at %s - %s" % (config.cassandra_servers[0], e))
esmond.cassandra.ConnectionException: "System Manager can't connect to Cassandra at localhost:9160 - Could not connect to any of [('::1', 9160, 0, 0), ('127.0.0.1', 9160)]"

it can't connect because Cassandra is probably not running properly

Regards,

--
Szymon Trocha
Poznań Supercomputing & Networking Center
General NOC phone +48 61-858-2015 | noc.pcss.pl
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