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chara:trouble_shooting [2022/02/10 13:46]
charaobs 		chara:trouble_shooting [2022/12/09 20:07]
gail_stargazer
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   * Check the time on the OPLE server. If the time is off or there are any lost ticks/seconds "Lost T/S" listed, then MSYNC ople using the GPS GUI and type "syncople" into the ople server.   * Check the time on the OPLE server. If the time is off or there are any lost ticks/seconds "Lost T/S" listed, then MSYNC ople using the GPS GUI and type "syncople" into the ople server.
   * Are the [MAN] buttons pressed (gray) for the moving carts on the OPLE Control gui? (The reference cart will remain green.)   * Are the [MAN] buttons pressed (gray) for the moving carts on the OPLE Control gui? (The reference cart will remain green.)
-  * Check that the carts are within delay line range (-1.3 to 44.25 meters) and errors are small. Were the carts homed and checked before the first slew of the night? Did any carts go to the front switch after slewing? This can cause them to lose their position. Turn off the OL button to send it back to zero. If it does not track on the home switch when displaying a zero position (0.000000), it was lost. Is the E2 cart stuck at 27.97m? See section on homing carts in __OPLE and Metrology__  section below.+  * Check that the carts are within delay line range (-1.3 to 44.25 meters) and errors are small. Were the carts homed and checked before the first slew of the night? Did any carts go to the front switch after slewing? This can cause them to lose their position. To check the homing of the carts, turn off the OL button to send it back to zero. If it does not track on the home switch when displaying a zero position (0.000000), it was lost. There is a new "CHECK" button on OPLE gtk that will send carts to home switch and report whether the is an error in the cart position. Is the E2 cart stuck at 27.97m? See section on homing carts in __OPLE and Metrology__  section below.
   * Are the LDC's working?   * Are the LDC's working?
       * Is the glass position within allowable range (-10mm to 49mm) on all beams?       * Is the glass position within allowable range (-10mm to 49mm) on all beams?
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  \\ The Shutters server can become unresponsive or disconnected from the Socket Manager. This server must be restarted from the lab and not from the Control Room. Follow these instructions to restart it. Note that Shutters runs on ople, not ctrscrut. \\  \\ To start the shutter server on ople: \\  \\ Log into the ople computer and kill the process labeled shutters with the PID as described in **Restarting Servers**  above. \\ Turn off the power to the Shutters with the switch on the computer rack which is to the left of the computer desk and marked "SHUTTERS". Restart the Shutters server with the commands below. After restarting the server and testing the gui to see that it works, turn the SHUTTERS power back on with the switch. There is a printed sheet of directions in the lab to help you. \\  \\ /usr/local/bin/tsockman rm shutters \\ ctrscrut/usr/local/bin/shutter_server /ctrscrut/chara/etc/shutter.cfg &  \\ The Shutters server can become unresponsive or disconnected from the Socket Manager. This server must be restarted from the lab and not from the Control Room. Follow these instructions to restart it. Note that Shutters runs on ople, not ctrscrut. \\  \\ To start the shutter server on ople: \\  \\ Log into the ople computer and kill the process labeled shutters with the PID as described in **Restarting Servers**  above. \\ Turn off the power to the Shutters with the switch on the computer rack which is to the left of the computer desk and marked "SHUTTERS". Restart the Shutters server with the commands below. After restarting the server and testing the gui to see that it works, turn the SHUTTERS power back on with the switch. There is a printed sheet of directions in the lab to help you. \\  \\ /usr/local/bin/tsockman rm shutters \\ ctrscrut/usr/local/bin/shutter_server /ctrscrut/chara/etc/shutter.cfg &
 +
 +==== Restarting Socket Manager ====
 +
 +In very rare circumstances, the socket manager might need to be restarted. This is usually needed if GUIs stop communicating (e.g., OPLE GUI stops communicating with OPLE server). Another example occurs when mircx_bootLauncher tries to remove dead server names from the socket_manager before restarting. If the socket_manager does not respond, the mircx_bootLauncher will timeout.
 +
 +Follow these instructions to restart the socket manager, but only do so if really necessary:
 +
 +ssh -X observe@ctrscrut
 +
 +killall socket_manager
 +
 +socket_manager &
  
 ==== MIRC-X CredoneImAcq Server ==== ==== MIRC-X CredoneImAcq Server ====
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   * If either Phase 1 or Phase 2 states say IDLE for a given VPN, then you need to re-establish the connection. To do this, click on the "DROP" button for that VPN. Then click on the "CONNECT" button and wait for the Phase 1 and Phase 2 connections to be established.   * If either Phase 1 or Phase 2 states say IDLE for a given VPN, then you need to re-establish the connection. To do this, click on the "DROP" button for that VPN. Then click on the "CONNECT" button and wait for the Phase 1 and Phase 2 connections to be established.
   * Make sure to close Firefox by using CTRL-Q to quit the program and not just close the window.   * Make sure to close Firefox by using CTRL-Q to quit the program and not just close the window.
 +
 +===== Network Problems =====
 +
 +==== User accounts not recognized ====
 +
 +The gps computer does the user authentication for the control side while ctrscrut provides the home directories. Yellowpages is gone, the new paradigm is LDAP (local directory access protocol). If you can't log on to computers on the control network, then make sure both ctscrut (michelson) and gps computers are running. If the login screen screen on ctrscrut says "Ubuntu Administrator" and has no user accounts, then check to make sure gps computer is on. If you restart gps, then you might have to reboot ctrscrut to get the user accounts. If ctrscrut was rebooted, you might have to reboot other control network computers if you can't log on.
 +
 +If gps computer does not start, check the power distribution unit (PDU) at the top of that rack. If any units show both "+" and "-" then you can use the arrow buttons to move through the units and cycle the units to on "+". That should automatically start the computer connected to those units.
  
 ===== General Problems ===== ===== General Problems =====
chara/trouble_shooting.txt ยท Last modified: 2023/11/21 01:42 by charaobs

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