(r22) Computing < Main

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---+ CIT HEP Computing

%TOC%

This page is dedicated to centralize all computing related subjects

   * [[ComputingGridTools]]
   * [[ComputingT3HiggsFAQ]]

---++ Workplan guidelines

Our priorities are in this order :

   * Uptime
   * User support (blocker issues)
   * Resource utilization -- making sure that all hardware is being used
   * User support (non-blocker important issues)
   * Backups
   * Monitoring
   * User support (potential non-issues)
   * Security
   * R&D - This probably needs extra manpower. We have ideas but no time.

---+++ Extremely handy links :

[[http://alimonitor.cern.ch/hepspec/][MonaLisa HepSpec table]]

[[https://docs.google.com/spreadsheet/ccc?key=0AvE7aiWBwKzWdHl4MVpSZTRBcjktdXBqWlFhcnZrVmc#gid=0][USCMS T2 HepSpec table]]

[[http://dashb-ssb.cern.ch/dashboard/request.py/siteview#currentView=production&highlight=true][Sites pledges]]

---+++ Related links

   * [[http://www.uslhcnet.org/][USLHCNET]]
   * [[http://supercomputing.caltech.edu/][SC]]

---++ Upgrades (software)

[[https://twiki.cern.ch/twiki/bin/view/CMSPublic/USCMSTier2Upgrades][USCMS Upgrades twiki]]

---+++ Pledges, etc

   * [[http://gstat-wlcg.cern.ch/apps/pledges/requirements/][REBUS]]
   * [[https://cmsweb.cern.ch/sitedb/prod/sites/T2_US_Caltech][SiteDB]]

---+++ Monitoring links

We need a page to aggregate those, plus some !DashBoard + !PhEDEx + central CMS monitoring tools plots.

---++++ Central CMS
   * Overview 
      * [[http://dashb-cms-jobsmry.cern.ch/dashboard/request.py/dailysummary#button=resourceutil&sites%5B%5D=T2_US_Caltech&sites%5B%5D=T2_US_Florida&sites%5B%5D=T2_US_MIT&sites%5B%5D=T2_US_Nebraska&sites%5B%5D=T2_US_Purdue&sites%5B%5D=T2_US_UCSD&sites%5B%5D=T2_US_Vanderbilt&sites%5B%5D=T2_US_Wisconsin&sitesSort=2&start=null&end=null&timerange=last24&granularity=Hourly&generic=0&sortby=0&series=All][Site Race]]
      * [[http://dashb-cms-jobsmry.cern.ch/dashboard/request.py/dailysummary#button=successfailures&sites%5B%5D=T2_US_Caltech&sitesSort=2&start=null&end=null&timerange=last24&granularity=Hourly&generic=0&sortby=1&series=All][Batch system efficiency]]
      * [[http://dashb-ssb.cern.ch/dashboard/request.py/siteview?site=T2_US_Caltech#currentView=default&highlight=true][Site Status Board]]
      * [[http://cms-site-readiness.web.cern.ch/cms-site-readiness/SiteReadiness/HTML/SiteReadinessReport.html#T2_US_Caltech][Site Readiness]]
      * [[http://hammercloud.cern.ch/hc/app/cms/][HammerCloud]]

   * [[http://dashb-ssb-dev.cern.ch/dashboard/templates/sitePendingRunningJobs.html?site=T2_US_Caltech][Running production x Pledge]]
   * [[http://dashb-cms-job-dev.cern.ch/dashboard/request.py/dailysummary#button=resourceutil&sites%5B%5D=Caltech+CMS+T2&sitesSort=10&start=null&end=null&timerange=lastMonth&granularity=Daily&generic=0&sortby=1&series=All&activities%5B%5D=all][Pledges and shares]]
   * Grid jobs 
      * [[http://dashb-cms-jobsmry.cern.ch/dashboard/request.py/jobnumbers_individual?sites=T2_US_Caltech&activities=all&sitesSort=2&start=null&end=null&timeRange=last24&granularity=Hourly&generic=0&sortBy=0&type=r][Daily running]]
      * [[http://dashb-cms-jobsmry.cern.ch/dashboard/request.py/jobnumbers_individual?sites=T2_US_Caltech&activities=all&sitesSort=2&start=null&end=null&timeRange=last24&granularity=Hourly&generic=0&sortBy=0&type=p][Daily pending]]
      * [[http://dashb-cms-jobsmry.cern.ch/dashboard/request.py/jobnumbers_individual?sites=T2_US_Caltech&activities=all&sitesSort=2&start=null&end=null&timeRange=lastWeek&granularity=Hourly&generic=0&sortBy=0&type=r][Weekly running]]
      * [[http://dashb-cms-jobsmry.cern.ch/dashboard/request.py/jobnumbers_individual?sites=T2_US_Caltech&activities=all&sitesSort=2&start=null&end=null&timeRange=lastWeek&granularity=Hourly&generic=0&sortBy=0&type=p][Weekly pending]]
      * [[http://dashb-cms-jobsmry.cern.ch/dashboard/request.py/efficiency_individual?sites=T2_US_Caltech&activities=all&sitesSort=2&start=null&end=null&timeRange=last24&granularity=Hourly&generic=0&sortBy=0&type=ea][Job efficiency (success/failure)]]
      * [[http://dashb-cms-jobsmry.cern.ch/dashboard/request.py/efficiency_individual?sites=T2_US_Caltech&activities=production&sitesSort=2&start=null&end=null&timeRange=last24&granularity=Hourly&generic=0&sortBy=0&type=ea][Production jobs efficiency (success/failure)]]

   * [[https://sam-cms-prod.cern.ch/nagios/cgi-bin/status.cgi?hostgroup=site-CIT_CMS_T2&style=overview][SAM Overview CIT_CMS_T2]]
   * [[https://sam-cms-prod.cern.ch/nagios/cgi-bin/status.cgi?host=cit-se.ultralight.org&style=detail][Nagios SE]]
   * [[https://sam-cms-prod.cern.ch/nagios/cgi-bin/status.cgi?host=cit-gatekeeper.ultralight.org&style=detail][Nagios CE1]]
   * [[https://sam-cms-prod.cern.ch/nagios/cgi-bin/status.cgi?host=cit-gatekeeper2.ultralight.org&style=detail][Nagios CE2]]
   * Caltech T2 links from T1s 
      * [[https://cmsweb.cern.ch/phedex/debug/Activity::QualityPlots?src_filter=T1_%2A;period=l24h;no_mss=true;dest_filter=T2_US_Caltech;upto=;entity=src;graph=quality_all][Last 24 hours]]
   * Transfers, *from* Caltech 
      * [[https://cmsweb.cern.ch/phedex/prod/Activity::RatePlots?graph=quantity_rates&entity=dest&src_filter=T2_US_Caltech&dest_filter=&no_mss=true&period=l7d&upto=&.submit=Update][Weekly rate]]
      * [[https://cmsweb.cern.ch/phedex/prod/Activity::QualityPlots?src_filter=;period=l7d;no_mss=true;dest_filter=T2_US_Caltech;upto=;entity=dest;graph=quantity_rates][Weekly quality]]

   * Transfers, *to* Caltech 
      * [[https://cmsweb.cern.ch/phedex/prod/Activity::RatePlots?graph=quantity_rates&entity=dest&src_filter=&dest_filter=T2_US_Caltech&no_mss=true&period=l7d&upto=][Weekly Rate]]
      * [[https://cmsweb.cern.ch/phedex/prod/Activity::QualityPlots?graph=quality_all&entity=src&src_filter=&dest_filter=T2_US_Caltech&no_mss=true&period=l48h&upto=][48h quality]]

   * [[http://perfsonar.racf.bnl.gov:8080/exda/?page=25&cloudName=USCMS][Perfsonar]]

   * [[http://submit-3.t2.ucsd.edu/CSstoragePath/UserPrio/UserPrio-dev.html][Analysis central monitoring per user]]

   * [[http://farmsmon.pi.infn.it/phedex/][Subir phedex page]]

   * [[http://vocms32.cern.ch/gfactory/][GlideIn monitoring page]]

   * [[http://xrootd.t2.ucsd.edu/dump_cache.jsp?pred=%25%2FCMS%3A%3A%25%3A%3AXrdReport%2F%25%2Fsite&submit=Filter][XrootD Monitoring]]

   * [[http://dashb-cms-xrootd-transfers.cern.ch/ui/#c.plots=%255B%257B%2522metric%2522%253A%2522outgoing_bytes%2522%252C%2522type%2522%253A%2522column%2522%252C%2522yAxis%2522%253A0%257D%252C%257B%2522metric%2522%253A%2522incoming_bytes%2522%252C%2522type%2522%253A%2522column%2522%252C%2522yAxis%2522%253A%25220%2522%257D%252C%257B%2522metric%2522%253A%2522outgoing_transfers%2522%252C%2522type%2522%253A%2522scatter%2522%252C%2522yAxis%2522%253A%25221%2522%257D%252C%257B%2522metric%2522%253A%2522incoming_transfers%2522%252C%2522type%2522%253A%2522scatter%2522%252C%2522yAxis%2522%253A%25221%2522%257D%255D&c.title=Traffic+by+site&c.xAxis=site&c.yAxis=%255B%257B%2522name%2522%253A%2522Bytes%2522%252C%2522position%2522%253A%2522Left%2522%252C%2522type%2522%253A%2522logarithmic%2522%257D%252C%257B%2522name%2522%253A%2522Number%2520of%2520transfers%2522%252C%2522position%2522%253A%2522Right%2522%252C%2522type%2522%253A%2522logarithmic%2522%257D%255D&ctr.site=(T2_US_Caltech)][XrootD DashBoard]]

   * [[http://dashb-cms-sum.cern.ch/dashboard/request.py/latestresultssmry-sum#profile=CMS_CRITICAL_FULL&group=AllGroups&site%5B%5D=T2_US_Caltech&flavour%5B%5D=All+Service+Flavours&metric%5B%5D=org.cms.WN-xrootd-access&metric%5B%5D=org.cms.WN-xrootd-fallback&status%5B%5D=All+Exit+Status][xrootd fallback]]

   * [[https://www-ftsmon.gridpp.rl.ac.uk:8449/fts3/ftsmon/#/][FTS not-as-good monitoring]]

   * [[http://dashb-fts-transfers.cern.ch/ui/#date.interval=1440&grouping.dst=(site)&grouping.src=(site)&p.grouping=dst&src.site=(CIT)&tab=transfer_plots][FTS great new dashboard]]

---++++ OSG

   * [[https://myosg.grid.iu.edu/rgstatushistory/index?downtime_attrs_showpast=&account_type=cumulative_hours&ce_account_type=gip_vo&se_account_type=vo_transfer_volume&bdiitree_type=total_jobs&bdii_object=service&bdii_server=is-osg&start_type=7daysago&start_date=02%2F15%2F2013&end_type=now&end_date=02%2F15%2F2013&facility=on&facility_10006=on&gridtype=on&gridtype_1=on&service_1=on&service_5=on&active=on&active_value=1&disable_value=1][RSV probes]]
   * [[https://t2-monitor.ultralight.org/rsv/][Local RSV]]

---++++ Local pages/systems
   * [[https://t2-monitor.ultralight.org/jobview/][Internal batch system monitoring]]
   * [[http://t2-headnode.ultralight.org:50070/dfshealth.jsp][Tier-2 hadoop monitoring]]
   * [[http://t3-remote.ultralight.org:50070/dfshealth.jsp][Tier-3 remote hadoop monitoring]]
   * [[https://cms-nagios.caltech.edu/nagios/][Nagios]]
   * [[https://bugzilla.hep.caltech.edu/][Ticket system]]
   * [[https://mgmt.hep.caltech.edu/cacti/][Campus cacti]]
   * [[http://monalisa4.ultralight.org/display?page=sensors/temp&dont_cache=true][MonaLISA Temperature]]
   * [[http://zabbix.hep.caltech.edu/zabbix/overview.php?sid=529298ad22b9043e&form_refresh=1&groupid=13&view_style=0][Zabbix worker node checks]]
   * [[http://zabbix.hep.caltech.edu/zabbix/report6.php?sid=1f3ab99f03ec0616&form_refresh=1&form=1&report_show=show&config=3&report_timesince=20140818000000&report_timetill=20140819000000&sortorder=0&hostids%5B10813%5D=10813&hostids%5B10790%5D=10790&hostids%5B10711%5D=10711&hostids%5B10717%5D=10717&hostids%5B10657%5D=10657&hostids%5B10658%5D=10658&hostids%5B10656%5D=10656&hostids%5B10687%5D=10687&hostids%5B10827%5D=10827&hostids%5B10692%5D=10692&hostids%5B10823%5D=10823&hostids%5B10664%5D=10664&hostids%5B10759%5D=10759&hostids%5B10825%5D=10825&hostids%5B10719%5D=10719&hostids%5B10712%5D=10712&hostids%5B10689%5D=10689&hostids%5B10663%5D=10663&itemid=53145&title=Report+3&xlabel=&ylabel=&groupid=0&report_timesince_day=18&report_timesince_month=08&report_timesince_year=2014&report_timesince_hour=00&report_timesince_minute=00&report_timetill_day=19&report_timetill_month=08&report_timetill_year=2014&report_timetill_hour=00&report_timetill_minute=00&scaletype=2&avgperiod=2&item_name=compute-6-8.tier2%3A+Free+disk+space+on+%2Fcvmfs%2Fgrid.cern.ch&palette=0&palettetype=1&report_show=Show][Zabbix distribution of item for nodes]]

---++++ Documentation

   * [[https://twiki.cern.ch/twiki/bin/view/CMSPublic/CompOpsSiteconfMigrationToGit][Chaging SITECONF settings]]
   * [[https://twiki.cern.ch/twiki/bin/viewauth/CMS/CRAB3CheatSheet][CRAB3 mantra]]

---+++ Monitoring shifts
---++++ Daily
   * Check Readiness
   * Check Site Status Board
   * Check [[https://cmsweb.cern.ch/phedex/debug/Activity::QualityPlots?src_filter=T2_US_Caltech;period=l48h;no_mss=true;dest_filter=;upto=;entity=dest;graph=quality_all][PhEDEx]] Transfers ([[https://cmsweb.cern.ch/phedex/debug/Activity::QualityPlots?src_filter=;period=l48h;no_mss=true;dest_filter=T2_US_Caltech;upto=;entity=src;graph=quality_all][both directions]])
   * HDFS status, corrupted blocks
   * Check [[http://dashb-cms-jobsmry.cern.ch/dashboard/request.py/dailysummary#button=successfailures&sites%5B%5D=T2_US_Caltech&sites%5B%5D=T2_US_Florida&sites%5B%5D=T2_US_MIT&sites%5B%5D=T2_US_Nebraska&sites%5B%5D=T2_US_Purdue&sites%5B%5D=T2_US_UCSD&sites%5B%5D=T2_US_Vanderbilt&sites%5B%5D=T2_US_Wisconsin&sitesSort=2&start=null&end=null&timerange=last24&granularity=Hourly&generic=0&sortby=0&series=All][Job Failure rate]], reasons if there is a site problem
   * Check [[http://t2-headnode-new.ultralight.org/ganglia/?c=T2_US_Caltech-puppet&m=load_one&r=month&s=descending&hc=4&mc=2][Ganglia]] plots
   * Check [[http://zabbix.hep.caltech.edu/zabbix/screens.php?ddreset=1&sid=1f3ab99f03ec0616][GridFTP Screen]] on Zabbix

---++++ Weekly
   * Check RAID status on servers 
      * SRM
      * CEs
      * GridFTPs
      * GUMS 
         * Do this fast by : [root@t2-headnode-new lists]# pssh -i -h raid-check-list.txt "cat /proc/mdstat" | grep "blocks super" | grep -v chunks
      * PhEDEx
      * T3 Headnode
      * T3 Login node
      * T3 JBOD 
         * Query with : storcli64 /c0/v0 show
      * Newman 
         * Query with : areca_cli64 ; vsf info
      * LDAP2

   * Check that the important servers still have a working backup
   * Nodes / Cores / Storage counts - once we update the inventory and have defined totals.

---+++ Monitoring requirements

   * RSV 
      * Cert exists
      * Cert validity

   * Nodes 
      * GLEXEC
      * CVMFS
      * SWAP Trigger
      * IOPS on HDFS
      * IOPS on /
      * Proc / User
      * Open Files / User

   * Servers 
      * RAID states

   * NameNode/HDFS 
      * Health
      * Checkpoints
      * NN - All filesystems usage maximum alert

   * External 
      * PhEDEx data on transfers
      * Data from SAM
      * Data from RSV
      * Data from DashBoard - Blackhole nodes
-- Main.samir - 2014-04-01
Topic revision: r22 - 2015-03-16 - samir
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