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Infrastructure Monitoring
Using Node-RED and MQTT to Monitor Server and Application Stats
Post 303043726 by Neo on Wednesday 5th of February 2020 05:52:01 AM
02-05-2020
Administrator
Expanded the dashboard a bit, and found the time series data helpful in tracking down some nagging performance issues.
The time series charts in these screen shots illustrate two brief performance hits. Since these hits happen at the top of the hours, I looked carefully a the application scheduled tasks and found a number of "clean up" tasks which were not an issue with the DB was small, but with a large DB these "clean up" hourly scheduled tasks can slow the site down.
So, I moved around five clean-up tasks to Saturday and Sunday, since moving these batch jobs to the weekend will not effect the application very much, but does improve performance quite a bit.
The time series charts in these screen shots illustrate two brief performance hits. Since these hits happen at the top of the hours, I looked carefully a the application scheduled tasks and found a number of "clean up" tasks which were not an issue with the DB was small, but with a large DB these "clean up" hourly scheduled tasks can slow the site down.
So, I moved around five clean-up tasks to Saturday and Sunday, since moving these batch jobs to the weekend will not effect the application very much, but does improve performance quite a bit.
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LEARN ABOUT DEBIAN
orte-clean
orte-clean(1) Open MPI orte-clean(1) NAME
orte-clean - Cleans up any stale processes and files leftover from Open MPI jobs. SYNOPSIS
orte-clean [--verbose] mpirun --pernode [--host | --hostfile file] orte-clean [--verbose] OPTIONS
[-v | --verbose] This argument will run the command in verbose mode and print out the universes that are getting cleaned up as well as pro- cesses that are being killed. DESCRIPTION
orte-clean attempts to clean up any processes and files left over from Open MPI jobs that were run in the past as well as any currently running jobs. This includes OMPI infrastructure and helper commands, any processes that were spawned as part of the job, and any temporary files. orte-clean will only act upon processes and files that belong to the user running the orte-clean command. If run as root, it will kill off processes belonging to any users. When run from the command line, orte-clean will attempt to clean up the local node it is run from. When launched via mpirun, it will clean up the nodes selected by mpirun. EXAMPLES
Example 1: Clean up local node only. example% orte-clean Example 2: To clean up on a specific set of nodes specified on command line, it is recommended to use the pernode option. This will run one orte-clean for each node. example% mpirun --pernode --host node1,node2,node3 orte-clean To clean up on a specific set of nodes from a file. example% mpirun --pernode --hostfile nodes_file orte-clean Example 3: Within a resource managed environment like N1GE, SLURM, or Torque. The following example is from N1GE. First, we see that we have two nodes with two CPUs each. example% qsh -pe orte 4 example% mpirun -np 4 hostname node1 node1 node2 node2 Clean up all the nodes in the cluster. example% mpirun --pernode orte-clean Clean up a subset of the nodes in the cluster. example% mpirun --pernode --host node1 orte-clean SEE ALSO
orterun(1), orte-ps(1) 1.4.5 Feb 10, 2012 orte-clean(1)