# pvserver interactive points -\> tag missmatch -\> exit

**URL:** https://discourse.paraview.org/t/pvserver-interactive-points-tag-missmatch-exit/11693
**Category:** ParaView Support
**Created:** [March 24, 2023, 8:35am UTC](https://discourse.paraview.org/t/pvserver-interactive-points-tag-missmatch-exit/11693 "2023-03-24T08:35:37Z")
**Posts on this page:** 7
**Page:** 1

<div class="post-metadata">

### Author: ![Dani](https://discourse.paraview.org/user_avatar/discourse.paraview.org/dani/32/9587_2.png) [@Dani](https://discourse.paraview.org/u/Dani)
#### Post date: [March 24, 2023, 8:35am UTC](https://discourse.paraview.org/t/pvserver-interactive-points-tag-missmatch-exit/11693/1 "2023-03-24T08:35:37Z")

</div>

I’m using ParaView 5.11 on a windows client and connect to a pvserver on a linux machine. Works generally really well. But when I try to query the model through e.g. ‘Interactive Select Points On’ or ‘Hover Points On’ then I get  
[pvserver]vtkSocketCommunicator.c:849 ERR| vtkSocketCommunicator (0x24feda0): Tag mismatch: got 1, expecting 10.  
on the linux side and pvserver exits.  
How do I fix this?

---

<div class="post-metadata">

### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [March 24, 2023, 8:37am UTC](https://discourse.paraview.org/t/pvserver-interactive-points-tag-missmatch-exit/11693/2 "2023-03-24T08:37:08Z")

</div>

Hi @Dani

Please share exact stesp to reproduce. I’m unable to reproduce here.

Best.

---

<div class="post-metadata">

### Author: ![Dani](https://discourse.paraview.org/user_avatar/discourse.paraview.org/dani/32/9587_2.png) [@Dani](https://discourse.paraview.org/u/Dani)
#### Post date: [March 24, 2023, 9:27am UTC](https://discourse.paraview.org/t/pvserver-interactive-points-tag-missmatch-exit/11693/3 "2023-03-24T09:27:51Z")

</div>

I tried to set up a synthetic example, but did not manage to reproduce. The smallest actual example is more than 100 MB. So, I try first describing the steps without making large datasets available.

1. Start pvserver on linux and connect from windows 5.11 ParaView
2. Load pvd data file. 3D model, quite a few variables, several timesteps
3. ‘Hover Points On’ works at this stage
4. I have two materials in my model, the respective domains are marked by phase=0 and phase=1. I only want to see the parts of the model with phase=1 and use a threshold filter set to 0.1 and 1.
5. If I now try to use ‘Hover Points On’ on the shown phase=1 part of the model then I get the described tag missmatch. pvserver then states ‘Exiting…’ but gets stuck. Using Ctrl-C at this stage spits out a stack trace. You find the whole command line output below.  
Thanks  
Dani

Client connected.  
( 572.906s) [pvserver]vtkSocketCommunicator.c:849 ERR| vtkSocketCommunicator (0x1268d70): Tag mismatch: got 1, expecting 10.  
( 572.942s) [pvserver]vtkSocketCommunicator.c:849 ERR| vtkSocketCommunicator (0x1268d70): Tag mismatch: got 1, expecting 41235.  
( 572.942s) [pvserver]vtkSocketCommunicator.c:849 ERR| vtkSocketCommunicator (0x1268d70): Tag mismatch: got 1, expecting 41235.  
( 585.484s) [pvserver]vtkSocketCommunicator.c:783 ERR| vtkSocketCommunicator (0x1268d70): Could not receive tag. 1  
( 585.484s) [pvserver]vtkTCPNetworkAccessMana:295 ERR| vtkTCPNetworkAccessManager (0x1178c60): Some error in socket processing.  
Exiting…  
^C  
Loguru caught a signal: SIGINT  
Stack trace:  
21 0x40196d /home/schmid/ParaView-5.11.0-RC2-osmesa-MPI-Linux-Python3.9-x86\_64/bin/pvserver-real() [0x40196d]  
20 0x7f5af397ad0a \_\_libc\_start\_main + 234  
19 0x40188e /home/schmid/ParaView-5.11.0-RC2-osmesa-MPI-Linux-Python3.9-x86\_64/bin/pvserver-real() [0x40188e]  
18 0x7f5af24e5654 vtkInitializationHelper::Finalize() + 100  
17 0x7f5af13a8ae2 vtkProcessModule::Finalize() + 98  
16 0x7f5aedd199fa /home/schmid/ParaView-5.11.0-RC2-osmesa-MPI-Linux-Python3.9-x86\_64/bin/…/lib/libvtkCommonCore-pv5.11.so.1(+0x6ae9fa) [0x7f5aedd199fa]  
15 0x7f5aedbc0b29 vtkCallbackCommand::Execute(vtkObject\*, unsigned long, void\*) + 25  
14 0x7f5aeb3131b6 /home/schmid/ParaView-5.11.0-RC2-osmesa-MPI-Linux-Python3.9-x86\_64/bin/…/lib/…/lib/libvtkRemotingViews-pv5.11.so.1(+0x1e81b6) [0x7f5aeb3131b6]  
13 0x7f5ad7b44a89 vtkOSOpenGLRenderWindow::~vtkOSOpenGLRenderWindow() + 9  
12 0x7f5ad7b44a1c vtkOSOpenGLRenderWindow::~vtkOSOpenGLRenderWindow() + 28  
11 0x7f5ad7b449e3 vtkOSOpenGLRenderWindow::Finalize() + 83  
10 0x7f5ad7b44914 vtkOSOpenGLRenderWindow::DestroyOffScreenWindow() + 36  
9 0x7f5ad610866b OSMesaDestroyContext + 27  
8 0x7f5ad61373e8 /home/schmid/ParaView-5.11.0-RC2-osmesa-MPI-Linux-Python3.9-x86\_64/bin/…/lib/…/lib/libOSMesa.so.8(+0x1a93e8) [0x7f5ad61373e8]  
7 0x7f5ad6135e38 /home/schmid/ParaView-5.11.0-RC2-osmesa-MPI-Linux-Python3.9-x86\_64/bin/…/lib/…/lib/libOSMesa.so.8(+0x1a7e38) [0x7f5ad6135e38]  
6 0x7f5ad6c33acb /home/schmid/ParaView-5.11.0-RC2-osmesa-MPI-Linux-Python3.9-x86\_64/bin/…/lib/…/lib/libOSMesa.so.8(+0xca5acb) [0x7f5ad6c33acb]  
5 0x7f5ad6ade9c5 /home/schmid/ParaView-5.11.0-RC2-osmesa-MPI-Linux-Python3.9-x86\_64/bin/…/lib/…/lib/libOSMesa.so.8(+0xb509c5) [0x7f5ad6ade9c5]  
4 0x7f5ad6d9b544 /home/schmid/ParaView-5.11.0-RC2-osmesa-MPI-Linux-Python3.9-x86\_64/bin/…/lib/…/lib/libOSMesa.so.8(+0xe0d544) [0x7f5ad6d9b544]  
3 0x7f5ad6c611a5 /home/schmid/ParaView-5.11.0-RC2-osmesa-MPI-Linux-Python3.9-x86\_64/bin/…/lib/…/lib/libOSMesa.so.8(+0xcd31a5) [0x7f5ad6c611a5]  
2 0x7f5ad6c34a6b /home/schmid/ParaView-5.11.0-RC2-osmesa-MPI-Linux-Python3.9-x86\_64/bin/…/lib/…/lib/libOSMesa.so.8(+0xca6a6b) [0x7f5ad6c34a6b]  
1 0x7f5aed6577b2 pthread\_cond\_wait + 482  
0 0x7f5af398fd60 /lib/x86\_64-linux-gnu/libc.so.6(+0x38d60) [0x7f5af398fd60]  
( 613.056s) [pvserver] :0 FATL| Signal: SIGINT

---

<div class="post-metadata">

### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [March 24, 2023, 9:38am UTC](https://discourse.paraview.org/t/pvserver-interactive-points-tag-missmatch-exit/11693/4 "2023-03-24T09:38:27Z")

</div>

Could you share the 100Mb dataset over a file upload service ?

Did you try to reproduce only on one machine, only linux or only windows ?

---

<div class="post-metadata">

### Author: ![Dani](https://discourse.paraview.org/user_avatar/discourse.paraview.org/dani/32/9587_2.png) [@Dani](https://discourse.paraview.org/u/Dani)
#### Post date: [March 24, 2023, 9:57am UTC](https://discourse.paraview.org/t/pvserver-interactive-points-tag-missmatch-exit/11693/5 "2023-03-24T09:57:55Z")

</div>

I’ve only tried one configuration, i.e. windows client - linux server. Works really well in general with a few hick-ups like the interactive point querying.  
You find the example data set here:  
[https://www.dropbox.com/s/o8pomdziflyfypu/test.tar.gz?dl=1](https://www.dropbox.com/s/o8pomdziflyfypu/test.tar.gz?dl=1)

---

<div class="post-metadata">

### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [March 27, 2023, 12:39pm UTC](https://discourse.paraview.org/t/pvserver-interactive-points-tag-missmatch-exit/11693/6 "2023-03-27T12:39:09Z")

</div>

I reproduce with your data, linux server linux client, no need for mpi.

TAG == 10 is broadcast, TAG == 1 is RMI (a very generic tag).

I’m unable to reproduce with other datasets so far.

Could you open an issue: [https://gitlab.kitware.com/paraview/paraview/-/issues](https://gitlab.kitware.com/paraview/paraview/-/issues) ?

---

<div class="post-metadata">

### Author: ![Dani](https://discourse.paraview.org/user_avatar/discourse.paraview.org/dani/32/9587_2.png) [@Dani](https://discourse.paraview.org/u/Dani)
#### Post date: [March 28, 2023, 9:26am UTC](https://discourse.paraview.org/t/pvserver-interactive-points-tag-missmatch-exit/11693/7 "2023-03-28T09:26:05Z")

</div>

Thanks for looking into this and confirming the issue. I filed the issue here: [https://gitlab.kitware.com/paraview/paraview/-/issues/21841](https://gitlab.kitware.com/paraview/paraview/-/issues/21841)
