Restart services only if they are monitored by monit #13
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hadoop/util.sh
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| # Restart services in reverse order of how | ||
| # they were stopped | ||
| for (( i=0; i <last; i++ )); do | ||
| start_daemon "${running_svcs[~i]}" |
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I think it's more readable to loop from $last-1 down to 0, instead of using bitwise negated i as the index. But we can leave it like this if it's idiomatic Bash
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It's pretty standard, but I'm ok with changing it if you feel it's confusing.
akaranjkar-qu
approved these changes
May 6, 2019
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This helps avoid cluster-specific checks. e.g. Spark History Server should only be restarted on spark clusters. Instead of checking - in the bootstrap function - if we're running on a spark cluster, the service will be restarted only if it is monitored by monit.
In future this will be extended to handle systemd/upstart.