Trying to get process details on macOS

On Thu, Oct 19, 2023, 7:08 PM Eliot Kimber <eliot.kimber at servicenow.com> wrote: > In the context of a 10.6 server running as a web app, I’m trying to > implement a function that uses the process module to run commands to get > information about the running BaseX servers, in particular, the PID and > port each server is on. I start a number of “worker” BaseXHTTP instances to > handle long-running processes. > > > > On Linux this code works: > > let $cmdResult := proc:execute(‘ps’, ('-o', 'pid,%cpu,command')) > > > > From which I can parse out the PID and port for BaseX processes: > > > > let $lines as xs:string* := ($cmdResult/output/text() => > tokenize('&#x0a;')) > > return > > map{ > > 'data' : > > let $servers as map(*) := map:merge( > > for $line at $p in $lines[contains(., 'BaseXHTTP')] > > let $pid as xs:string := tokenize($line, '\s+')[1] > > let $port as xs:string := tokenize(substring-after($line, ' > -p'),'\s+')[1] > > return map{ $port : > > map{ > > 'port' : $port, > > 'pid' : $pid > > } > > } > > ) > > return $servers > > } > > > > However, on macOS there’s not an exact equivalent of the linux version of > ps, but there is the “pgrep” command, which, from the command line, lets me > get the data I need: > > pgrep -lf basex > > > > However, when I try to run this from within BaseX, I get “sysmon request > failed with error: sysmond service not found pgrep: Cannot get process list” > > > > I assume this is a function of how the HTTP servers are running on macOS. > I’m starting them like so: > > "${basexBinDir}/basexhttp" ${debugFlag} -S -p${clientPort} -h${httpPort} > -s${stopPort} & > > So as a service > > Any ideas how I might make this work on mapOS? > > > > Thanks, > > > > Eliot > > _____________________________________________ > > *Eliot Kimber* > > Sr Staff Content Engineer > > O: 512 554 9368 > > M: 512 554 9368 > > servicenow.com <https://www.servicenow.com> > > LinkedIn <https://www.linkedin.com/company/servicenow> | Twitter > <https://twitter.com/servicenow> | YouTube > <https://www.youtube.com/user/servicenowinc> | Facebook > <https://www.facebook.com/servicenow> >

From: Bridger Dyson-Smith <bdysonsmith at gmail.com> Date: Friday, October 20, 2023 at 9:02 AM To: Eliot Kimber <eliot.kimber at servicenow.com> Cc: BaseX <basex-talk at mailman.uni-konstanz.de> Subject: Re: [basex-talk] Trying to get process details on macOS [External Email] Ah, apologies ( that's what I get for trying to send emails during bedtime 🙂 ) I have been bitten in the past by arg differences between different Unix flavors. I have tried the following on Mac OS 12.something with just the BaseX jar download. let $ps := proc:execute('ps', ('-o', 'pid,%cpu,command')) return $ps <result> <output> PID %CPU COMMAND 82437 0.0 -bash 82462 16.7 /usr/bin/java -jar BaseX107.jar </output> <code>0</code> </result> This is a borrowed Mac - I didn't install anything. Does your Mac not have a ps; e.g. `which ps`? This one returns `/bin/ps`. Sorry for the noise. Best, Bridger On Thu, Oct 19, 2023, 8:00 PM Bridger Dyson-Smith <bdysonsmith at gmail.com<mailto:bdysonsmith at gmail.com>> wrote: Hi Eliot - hope you're well! Quickly off the cuff, the `ps` command on MacOS is a BSD-flavo(u)r, if I'm remembering correctly (it's been a while...). I don't have a Mac handy right now, but check this `ps` man page - https://ss64.com/osx/ps.html<https://ss64.com/osx/ps.html> - your args may need to be adjusted. Hope that's helpful. Best, Bridger On Thu, Oct 19, 2023, 7:08 PM Eliot Kimber <eliot.kimber at servicenow.com<mailto:eliot.kimber at servicenow.com>> wrote: In the context of a 10.6 server running as a web app, I’m trying to implement a function that uses the process module to run commands to get information about the running BaseX servers, in particular, the PID and port each server is on. I start a number of “worker” BaseXHTTP instances to handle long-running processes. On Linux this code works: let $cmdResult := proc:execute(‘ps’, ('-o', 'pid,%cpu,command')) From which I can parse out the PID and port for BaseX processes: let $lines as xs:string* := ($cmdResult/output/text() => tokenize('&#x0a;')) return map{ 'data' : let $servers as map(*) := map:merge( for $line at $p in $lines[contains(., 'BaseXHTTP')] let $pid as xs:string := tokenize($line, '\s+')[1] let $port as xs:string := tokenize(substring-after($line, ' -p'),'\s+')[1] return map{ $port : map{ 'port' : $port, 'pid' : $pid } } ) return $servers } However, on macOS there’s not an exact equivalent of the linux version of ps, but there is the “pgrep” command, which, from the command line, lets me get the data I need: pgrep -lf basex However, when I try to run this from within BaseX, I get “sysmon request failed with error: sysmond service not found pgrep: Cannot get process list” I assume this is a function of how the HTTP servers are running on macOS. I’m starting them like so: "${basexBinDir}/basexhttp" ${debugFlag} -S -p${clientPort} -h${httpPort} -s${stopPort} & So as a service Any ideas how I might make this work on mapOS? Thanks, Eliot Eliot Kimber Sr Staff Content Engineer O: 512 554 9368 M: 512 554 9368 servicenow.com<https://www.servicenow.com> LinkedIn<https://www.linkedin.com/company/servicenow> | Twitter<https://twitter.com/servicenow> | YouTube<https://www.youtube.com/user/servicenowinc> | Facebook<https://www.facebook.com/servicenow>

On Thu, Oct 19, 2023, 8:00 PM Bridger Dyson-Smith <bdysonsmith at gmail.com> wrote: > Hi Eliot - hope you're well! > > Quickly off the cuff, the `ps` command on MacOS is a BSD-flavo(u)r, if I'm > remembering correctly (it's been a while...). > > I don't have a Mac handy right now, but check this `ps` man page - > https://ss64.com/osx/ps.html - your args may need to be adjusted. > > Hope that's helpful. > Best, > Bridger > > On Thu, Oct 19, 2023, 7:08 PM Eliot Kimber <eliot.kimber at servicenow.com> > wrote: > >> In the context of a 10.6 server running as a web app, I’m trying to >> implement a function that uses the process module to run commands to get >> information about the running BaseX servers, in particular, the PID and >> port each server is on. I start a number of “worker” BaseXHTTP instances to >> handle long-running processes. >> >> >> >> On Linux this code works: >> >> let $cmdResult := proc:execute(‘ps’, ('-o', 'pid,%cpu,command')) >> >> >> >> From which I can parse out the PID and port for BaseX processes: >> >> >> >> let $lines as xs:string* := ($cmdResult/output/text() => >> tokenize('&#x0a;')) >> >> return >> >> map{ >> >> 'data' : >> >> let $servers as map(*) := map:merge( >> >> for $line at $p in $lines[contains(., 'BaseXHTTP')] >> >> let $pid as xs:string := tokenize($line, '\s+')[1] >> >> let $port as xs:string := tokenize(substring-after($line, ' >> -p'),'\s+')[1] >> >> return map{ $port : >> >> map{ >> >> 'port' : $port, >> >> 'pid' : $pid >> >> } >> >> } >> >> ) >> >> return $servers >> >> } >> >> >> >> However, on macOS there’s not an exact equivalent of the linux version of >> ps, but there is the “pgrep” command, which, from the command line, lets me >> get the data I need: >> >> pgrep -lf basex >> >> >> >> However, when I try to run this from within BaseX, I get “sysmon request >> failed with error: sysmond service not found pgrep: Cannot get process list” >> >> >> >> I assume this is a function of how the HTTP servers are running on macOS. >> I’m starting them like so: >> >> "${basexBinDir}/basexhttp" ${debugFlag} -S -p${clientPort} -h${httpPort} >> -s${stopPort} & >> >> So as a service >> >> Any ideas how I might make this work on mapOS? >> >> >> >> Thanks, >> >> >> >> Eliot >> >> _____________________________________________ >> >> *Eliot Kimber* >> >> Sr Staff Content Engineer >> >> O: 512 554 9368 >> >> M: 512 554 9368 >> >> servicenow.com <https://www.servicenow.com> >> >> LinkedIn <https://www.linkedin.com/company/servicenow> | Twitter >> <https://twitter.com/servicenow> | YouTube >> <https://www.youtube.com/user/servicenowinc> | Facebook >> <https://www.facebook.com/servicenow> >> >