it might be caused by changes made in the protocol recently.
What are the zenoh versions for both your router and your zenoh-csharp ? You cat get each with:
- router:
zenohd —version - zenoh-csharp: set
RUST_LOG=debug, run a zenoh-csharp binary. You should get the Zenoh Rust API version in the very first log.
You need to re-build zenoh-c and to re-install it to make sure zenoh-csharp uses it.
@kydos and @JEnoch this blog post was a great way to start the morning :)
2 replies
4 replies
thread 'async-std/runtime' panicked at 'called `Option::unwrap()` on a `None` value',
/.cargo/git/checkouts/zenoh-cc237f2570fab813/000a2ba/zenoh/src/net/routing/network.rs:431:37
Hi Zenoh team, it was great reading your newest blog post; I'm excited with the possibilities and efficiency that Zenoh brings!
I tried building firmware for ESP32 using instructions here but it looks like the ESP32 is going into a panic while running this firmware; I've actually never run into an issue like this ever with the ESP32, so was a bit baffled. I tried using ESPExceptionDecoder in Arduino, but it just kept failing to decode this trace.
Guru Meditation Error: Core 1 panic'ed (LoadProhibited). Exception was unhandled.
Core 1 register dump:
PC : 0x400014fd PS : 0x00060a30 A0 : 0x80001459 A1 : 0x3ffdcfd0
A2 : 0x00000000 A3 : 0xfffffffc A4 : 0x000000ff A5 : 0x0000ff00
A6 : 0x00ff0000 A7 : 0xff000000 A8 : 0x00000000 A9 : 0x3ffdcfa0
A10 : 0x3ffdd238 A11 : 0x00001800 A12 : 0x3ffb643c A13 : 0x00000000
A14 : 0x00000000 A15 : 0x3ffc4c68 SAR : 0x00000020 EXCCAUSE: 0x0000001c
EXCVADDR: 0x00000000 LBEG : 0x400014fd LEND : 0x4000150d LCOUNT : 0xffffffff
ELF file SHA256: 0000000000000000
Backtrace: 0x400014fd:0x3ffdcfd0 0x40001456:0x3ffdcfe0 0x40001445:0x3ffdd000 0x400d59e5:0x3ffdd020 0x400d48da:0x3ffdd100 0x400d44f9:0x3ffdd140 0x400d9644:0x3ffdd180 0x40089802:0x3ffdd1a0
Rebooting...Also, another piece of interesting observation, if I stop the zenoh docker container, the ESP32 does not crash, so there seems to be some network level conflict I guess?
For reference, I am using PlatformIO on Ubuntu Focal (though that shouldn't matter, I think), and the board I'm using is a generic ESP32-S2 WROVER board and it seems to work fine with other programs.
18 replies
Hi, I'm struggling to setup our ROS2 Galactic robot with support for iceoryx (shared memory) + zenoh-bridge-dds. I think the current master branch does not support the latest Cyclone DDS 0.8.0 release which is included in the Galactic release of ROS2. Is there a way to fix my issue?
I created an issue on zenoh-plugin-dds: eclipse-zenoh/zenoh-plugin-dds#50
2 replies
Trying to follow the doc https://zenoh.io/docs/getting-started/first-app/ the first code that produces temp measurements each second errors on me:
File "/Users/ryanjosephhagen/PycharmProjects/zenohtest3/venv/lib/python3.9/site-packages/zenoh/workspace.py", line 50, in put
self.rt.write_data(
AttributeError: 'dict' object has no attribute 'write_data'
1 reply
Also, the documentation mentions you can tune to get the payload down to 4-6 bytes , is this with a transport security(tls/quic)?
What you can do with zenoh is to limit overhead in zenoh (not the payload since it is provided by the user). In order to limit the overhead, some conf is required (see here: https://zenoh.io/blog/2021-07-05-zenoh-overhead/). Please note that limiting the overhead is advisble only for low throughput scenarios because of the sequence number resolution.
Hi Team,
I'm trying to configure Influx DB as the backend of the Zenoh Router.
I've used the following link to download the Influx DB plugin library and placed it in the path /usr/local/lib/
https://download.eclipse.org/zenoh/zenoh-backend-influxdb/
During backend activation, I'm using the following commands to test -
Add a backend connected to InfluxDB service on http://localhost:8086
curl -X PUT -H 'content-type:application/properties' -d "url=http://10.10.0.3:8086" -d "username=admin&password=XXXXXXXX" http://localhost:8000/@/router/local/plugin/storages/backend/influxdb
Add a storage on /demo/example/** using the database named "zenoh_example", creating it if not already existing
curl -X PUT -H 'content-type:application/properties' -d "path_expr=/demo/example/**;db=zenoh_example;username=admin;password=XXXXXXXX;create_db" http://localhost:8000/@/router/local/plugin/storages/backend/influxdb/storage/example
I'm following the README.md from here: https://github.com/eclipse-zenoh/zenoh-backend-influxdb
I could see the error in Zenoh Router debug log -
[2021-10-25T14:08:13Z WARN zplugin_storages] Backend /@/router/8BD6F3A43834409FAADA862124260E23/plugin/storages/backend/influxdb already exists
[2021-10-25T14:08:13Z INFO tide::log::middleware] <-- Request received
[2021-10-25T14:08:13Z INFO tide::log::middleware] --> Response sent
[2021-10-25T14:08:13Z DEBUG zbackend_influxdb] List databases with Influx query: ReadQuery { queries: ["SHOW DATABASES"] }
[2021-10-25T14:08:13Z WARN zplugin_storages::backends_mgt] zenoh error: (Failed to list existing InfluxDb databases : authorization error. User not authorized) at src/lib.rs:695.
Are the above commands correct especially when we need to use DB credentials for secured connections?
--
Thanks
Rajarshi Haldar
Hi @rajarshi_haldar_twitter ,
I think your backend was not correctly configured with your first curl command.
If you use several -d options in curl, it will concatenate those using ’&’ as separator. But zenoh expects ’;’ as separator between properties.
So you must use only 1 -d option with all the properties within, using ’;’ as separator.
In your case the correct commands shall be:
curl -X PUT -H 'content-type:application/properties' -d "url=http://10.10.0.3:8086;username=admin;password=XXXXXXXX" http://localhost:8000/@/router/local/plugin/storages/backend/influxdb
curl -X PUT -H 'content-type:application/properties' -d "path_expr=/demo/example/**;db=zenoh_example;username=admin;password=XXXXXXXX;create_db" http://localhost:8000/@/router/local/plugin/storages/backend/influxdb/storage/exampleI created eclipse-zenoh/zenoh-backend-influxdb#5 for this.
