Correct way to restart presto-server service on EMR
I have to restart presto-server on EMR to load my plugin. With reference to official AWS EMR docs:
On some places they say
sudo restart presto-server
On others they say,
sudo stop presto-serverfollowed bysudo start presto-server
While Restarting a service page favours the 2nd technique above,
Note: Stop/start is required; do not use the restart command.
I have found that both work without a glitch.
Questions:
- What's the difference between
sudo restart&sudo stop+sudo start? - Why the warning against
restart? - Which one to use for
presto-server?
Platform / Frameworks:
emr-5.15.0Presto 0.212
amazon-web-services amazon-emr prestodb
asked Nov 20 '18 at 11:52
y2k-shubhamy2k-shubham
1,12811130
add a comment |
I have to restart presto-server on EMR to load my plugin. With reference to official AWS EMR docs:
On some places they say
sudo restart presto-server
On others they say,
sudo stop presto-serverfollowed bysudo start presto-server
While Restarting a service page favours the 2nd technique above,
Note: Stop/start is required; do not use the restart command.
I have found that both work without a glitch.
Questions:
- What's the difference between
sudo restart&sudo stop+sudo start? - Why the warning against
restart? - Which one to use for
presto-server?
Platform / Frameworks:
emr-5.15.0Presto 0.212
amazon-web-services amazon-emr prestodb
asked Nov 20 '18 at 11:52
y2k-shubhamy2k-shubham
1,12811130
add a comment |
I have to restart presto-server on EMR to load my plugin. With reference to official AWS EMR docs:
On some places they say
sudo restart presto-server
On others they say,
sudo stop presto-serverfollowed bysudo start presto-server
While Restarting a service page favours the 2nd technique above,
Note: Stop/start is required; do not use the restart command.
I have found that both work without a glitch.
Questions:
- What's the difference between
sudo restart&sudo stop+sudo start? - Why the warning against
restart? - Which one to use for
presto-server?
Platform / Frameworks:
emr-5.15.0Presto 0.212
amazon-web-services amazon-emr prestodb
asked Nov 20 '18 at 11:52
y2k-shubhamy2k-shubham
1,12811130
I have to restart presto-server on EMR to load my plugin. With reference to official AWS EMR docs:
On some places they say
sudo restart presto-server
On others they say,
sudo stop presto-serverfollowed bysudo start presto-server
While Restarting a service page favours the 2nd technique above,
Note: Stop/start is required; do not use the restart command.
I have found that both work without a glitch.
Questions:
- What's the difference between
sudo restart&sudo stop+sudo start? - Why the warning against
restart? - Which one to use for
presto-server?
Platform / Frameworks:
emr-5.15.0Presto 0.212
amazon-web-services amazon-emr prestodb
amazon-web-services amazon-emr prestodb
asked Nov 20 '18 at 11:52
y2k-shubhamy2k-shubham
1,12811130
asked Nov 20 '18 at 11:52
y2k-shubhamy2k-shubham
1,12811130
asked Nov 20 '18 at 11:52
y2k-shubhamy2k-shubham
1,12811130
asked Nov 20 '18 at 11:52
y2k-shubhamy2k-shubham
1,12811130
asked Nov 20 '18 at 11:52
y2k-shubhamy2k-shubham
1,12811130
1,12811130
add a comment |
add a comment |
1 Answer
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restart does not reload the service configuration file (unfortunately, i don't remember the path to the file; this is the file which tells e.g. which user Presto runs as). Depending on the changes you introduce, this may or may not be an issue. Eg. if you are changing Presto config files or plugins, this is not an issue. If, however, you're changing the Presto service definition file, restart will not pick up your changes, whereas stop + start will.
answered Nov 20 '18 at 21:17
Piotr FindeisenPiotr Findeisen
5,22311639
add a comment |
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1 Answer
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
restart does not reload the service configuration file (unfortunately, i don't remember the path to the file; this is the file which tells e.g. which user Presto runs as). Depending on the changes you introduce, this may or may not be an issue. Eg. if you are changing Presto config files or plugins, this is not an issue. If, however, you're changing the Presto service definition file, restart will not pick up your changes, whereas stop + start will.
answered Nov 20 '18 at 21:17
Piotr FindeisenPiotr Findeisen
5,22311639
add a comment |
restart does not reload the service configuration file (unfortunately, i don't remember the path to the file; this is the file which tells e.g. which user Presto runs as). Depending on the changes you introduce, this may or may not be an issue. Eg. if you are changing Presto config files or plugins, this is not an issue. If, however, you're changing the Presto service definition file, restart will not pick up your changes, whereas stop + start will.
answered Nov 20 '18 at 21:17
Piotr FindeisenPiotr Findeisen
5,22311639
add a comment |
restart does not reload the service configuration file (unfortunately, i don't remember the path to the file; this is the file which tells e.g. which user Presto runs as). Depending on the changes you introduce, this may or may not be an issue. Eg. if you are changing Presto config files or plugins, this is not an issue. If, however, you're changing the Presto service definition file, restart will not pick up your changes, whereas stop + start will.
answered Nov 20 '18 at 21:17
Piotr FindeisenPiotr Findeisen
5,22311639
restart does not reload the service configuration file (unfortunately, i don't remember the path to the file; this is the file which tells e.g. which user Presto runs as). Depending on the changes you introduce, this may or may not be an issue. Eg. if you are changing Presto config files or plugins, this is not an issue. If, however, you're changing the Presto service definition file, restart will not pick up your changes, whereas stop + start will.
answered Nov 20 '18 at 21:17
Piotr FindeisenPiotr Findeisen
5,22311639
answered Nov 20 '18 at 21:17
Piotr FindeisenPiotr Findeisen
5,22311639
answered Nov 20 '18 at 21:17
Piotr FindeisenPiotr Findeisen
5,22311639
answered Nov 20 '18 at 21:17
Piotr FindeisenPiotr Findeisen
5,22311639
5,22311639
add a comment |
add a comment |
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