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https://issues.apache.org/jira/browse/TRAFODION-2883?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16379654#comment-16379654
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Gonzalo E Correa commented on TRAFODION-2883:
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I have created the pull request which will need a code review before it can be
merged.
[https://github.com/apache/trafodion/pull/1457]
These changes include the ability to run the monitor processes in AGENT mode
from a Python installation plus several other scale related changes and bug
fixes.
To enable AGENT mode, uncomment the following environment variables in
sqenvcom.sh and copy to all nodes.
{panel:title=sqenvcom.sh }
# Monitor process creator:
# MPIRUN - monitor process is created by mpirun
# Uncomment SQ_MON_CREATOR when running monitor in AGENT mode
#export SQ_MON_CREATOR=MPIRUN
# Monitor process run mode:
# AGENT - monitor process runs in agent mode versus MPI collective
# Uncomment the three environment variables below
#export SQ_MON_RUN_MODE=AGENT
#export MONITOR_COMM_PORT=23399
#export MONITOR_SYNC_PORT=2339
{panel}
An alternative to the above is to add the following to sql/scripts/shell.env:
SQ_MON_CREATOR=MPIRUN
SQ_MON_RUN_MODE=AGENT
MONITOR_COMM_PORT=23399
MONITOR_SYNC_PORT=23398
With regard to enabling monitor trace when in AGENT mode, use the file in
sql/scripts/monitor.env and uncomment the trace level desired.
Once this is merged to the baseline, I will merge up these changes to the
shared TRAFODION-2884 branch in the zcorrea_fork
> Preliminary Trafodion Foundation Scalability Enhancements
> ---------------------------------------------------------
>
> Key: TRAFODION-2883
> URL: https://issues.apache.org/jira/browse/TRAFODION-2883
> Project: Apache Trafodion
> Issue Type: Improvement
> Components: dtm, foundation, installer
> Affects Versions: 2.3
> Reporter: Gonzalo E Correa
> Assignee: Gonzalo E Correa
> Priority: Major
> Fix For: 2.3
>
>
> Initial changes required to:
> - AGENT mode monitor
> o Preliminary change to remove dependency on OpenMPI during
> initialization of operational cluster by creating a cluster
> of one node (MASTER monitor) where other remote nodes (SLAVE
> monitors) join the cluster through the MASTER
> - MASTER monitor selection
> - Scale bug fixes found when creating clusters greater than 120 nodes
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