From 8aaede904ddafb3119c56ee07db9ea4d1023b1ee Mon Sep 17 00:00:00 2001 From: srubio Date: Thu, 8 Oct 2020 15:32:23 +0200 Subject: [PATCH 1/2] add fqdn/alias issues to known isues --- source/development/advanced/known-issues.rst | 37 +++++++++++++++++- .../advanced/tango_alias_and_fqdn.png | Bin 0 -> 22047 bytes 2 files changed, 36 insertions(+), 1 deletion(-) create mode 100644 source/development/advanced/tango_alias_and_fqdn.png diff --git a/source/development/advanced/known-issues.rst b/source/development/advanced/known-issues.rst index 0c73f247..af9bc789 100644 --- a/source/development/advanced/known-issues.rst +++ b/source/development/advanced/known-issues.rst @@ -45,8 +45,43 @@ Pushing attributes within other attributes `read_attribute` methods may cause de - **known workaround**: Push events for commands or own `read_attribute` method only. +Using Network alias for TANGO_HOST and effect of FQDN names +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +This issues affect to Tango systems whenever a network alias is used for the +Tango Database together with fully qualified names (host.domain.suff). + +T7 server with no domain and client with domain trigger memory leaks in notifd + +In Tango 9 and server with domain, clients MUST use the FQDN; in opposite case you may loose events. + +Cells in red means likely Event_Timeout issues: + +.. image:: tango_alias_and_fqdn.png + :width: 600 + :alt: Network alias and fqdn hostnames + Tango 8 ------- - ... +Memory leaks on push state event +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +The API of push change event for state/status attributes is different, it does +not allow to pass the value like in other attributes. + +.. code:: + + Wrong way (memory leak): + push_change_event('State', PyTango.DevState.RUNNING) + Right way: + set_state(PyTango.DevState.RUNNING) + push_change_event('State') + + +Writing on Numpy arrays +~~~~~~~~~~~~~~~~~~~~~~~ + + To write a position value of a motor group (numpy array) the Macroserver writes + two values and the Pool reads zeros. It happens at claess with the energy pseudomotor. diff --git a/source/development/advanced/tango_alias_and_fqdn.png b/source/development/advanced/tango_alias_and_fqdn.png new file mode 100644 index 0000000000000000000000000000000000000000..ec1b32169ba3de8fda50e56116e6081dbd778da8 GIT binary patch literal 22047 zcmeFZWmKE%);0BYHDBSD0wb&+4pH@oU3%(HYcgPnikZf%8Ox zNP(qGS-N;xdHIO=2+Z!9z3nf&oMxsyZppn}ZuX`eeR!TvP;UHsQ2C;pi)OKyW1_!A z`SrkS!+!nO|1;2^Ktyx+`|jbPp#FTcVH^J6fB)ZQ`M>7yf8BuUw;RMwJlO7&q@<;z z3%SQWtNSCsyr03V+^RdfLqJe}aX2wibIZSLF)T4`Mf&jr^c&-)7U^HnuA&er-K(yy zE-D=~F+*bD-^&t@??1aiCztR*XF#v<=O=JbXBx_^$BL=r5mq z#&`l@_z(udL@&;vLxC$f9i{J3eR~1Cn^o`zq4*?BjSIC6mQ$TN=_<1me`$STe&DfH zc(K2h9-F(qsmwL9t3W2~z1!tf;t|hjQt!00A2>(v&H8YzQ$xR9&^~F0S8F>U8qcsQ zp><2LjmPB$T+43vcqej62BRnz=^RnCvoqJKFt3w+$oH5iD*|QSf7Q7S`{oTTHG-Fj ztg5qGQd_pEdSlsY&HUqTl6=;cS0~klb|Dcu$mfDiq_BeCpgnH)fpNi5F6;sGIeHsT z0z*M0)Y7*SSL!}=JHg7?Q1D_J50D}hscCH9y7xO^5(K8Q`YH@>BUK@mKAJqTqt;&pVU3ST zZB(UuUxnOU85mB*?@&>bRCfaIpc*R%VW4WuNkEyG7@FMbbDh|-8kj3f`0R_Ou^8ve zby)1>pzNeAr@0$BJ!@NJA_GB^`PY+ngK*uvTxVU+S%h4wz<`swW?vbUKED z+bP;R4{BwqC+M#biUz=pUQ*>+UJC=Mxzv~L9D+dp5>{LWa-1$w6jnvL!c|_aug*bq zddg8fh~rq0jjufM$01*O;oTuQ{&|UU;%A*yz*kU-{B4+QHZ=?15alz#4qQ&Nxe6-I zJ^Z8!X_$@VcZ%`cTsdfPDf8t?g=1JDw`;QV8@R@|xfMKBTBK6o_8M56UvKp zuDeu!w>%k;{@G;Sq5-Mg{QDsdt%``_57G+~yAM9oWWzj;nUNmq4K~@I=f|cm>P(dP z9>LT{R!%4}h43gDoHekZbEdDN=mA@$$8E!IzOLnTWk1!IwD}b&I^TFj(*u`JPkl0{ zC3E;(&Q+CQit^crWeQFA;_cUG4mRx=3@!^hYr6;lrC}h80IH2xz|0%oOeo*QGggyBfu^r+9$9;KrxEk* z=)*V;J?uTcvh?UVm|S)!G0p%RKU>*rJGv$XK`)wrxH9Kn7BVLY-n2AWZ0Wwnr~vG$ z0!17=&6O$_0z7v*5*|A3NY}bfx<|l3YNPq|Y2}=*_xSdrk&wVvrOHALOD1+`aA34| zFs_%VCfm+{#8c^a%`Gi0Wv;V{+DDw=^DgYmY~J$s9vO4yVW1qDumf=vs95;duD>}Y z39JwvR%^W&#@g=Bkjz@Awfbft##rC(V)V5NWO>P#E4)$Iumh$c0vqPpm^QVAQ)le9 zE*)#p%wRYFmw{{JUc-*QiU7P_e~UbnFtk^R&sQEe^2@Zplv)h33~|-MAHzL;vlg9B3;x`~}7pR(y

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source/development/advanced/known-issues.rst | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/source/development/advanced/known-issues.rst b/source/development/advanced/known-issues.rst index af9bc789..4a97ea26 100644 --- a/source/development/advanced/known-issues.rst +++ b/source/development/advanced/known-issues.rst @@ -60,6 +60,26 @@ Cells in red means likely Event_Timeout issues: .. image:: tango_alias_and_fqdn.png :width: 600 :alt: Network alias and fqdn hostnames + +Passing ZMQ events through firewalls, specific rules +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +In ZMQ it is not possible to pass Tango events through an specific port, but +specific firewall rules can be setup if each device server uses a different IP. + +- **known workaround**: it is possible to setup each device on a machine to use +an specific IP address (to run servers on different IP addresses he server host +must have multiple interfaces, tipically virtual ones). + +.. code:: + + #To use an pecific IP launch the device server with arguments like: + + ./MyDeviceServer $InstanceName -ORBendPoint giop:tcp:$IPADDRESS:$PORT + ./MyDeviceServer 1 -ORBendPoint giop:tcp:127.0.0.1:30001 + + #Or set an environment variable in your python code + os.environ["ORBendPoint"] = "giop:tcp:127.0.0.1:30001" Tango 8 -------