weatherreport show error when execute

[fr2lancer]

Description

Regarding to the ticket( #4747 ) I wanted to use a diagnostic tool
weatherreport

when I executed this it shows

in /opt/couchdb/bin
./weatherreport
/usr/bin/env: ‘escript’: No such file or directory

so I appended the
PATH=$PATH:/opt/couchdb/erts-12.3.2.10/bin

and it got
{"init terminating in do_boot",{'cannot get bootfile','no_dot_erlang.boot'}}
init terminating in do_boot ({cannot get bootfile,no_dot_erlang.boot})

Expected Behaviour

1. expecting weatherrepot runs smoothly

Your Environment

• CouchDB version used:
  couchdb-3.3.2-1.el8 in RHEL8 packages
• Operating system and version:
  2 * Intel(R) Xeon(R) Gold 6240 CPU @ 2.60GHz
  Mem 4G
  Red Hat Enterprise Linux release 8.8 (Ootpa)(4.18.0-477.10.1.el8_8.x86_64)

[big-r81]

You need to add the path to you couchdb config dir.

$ ./bin/weatherreport --help
Usage: weatherreport  [-c <etc>] [-d <level>] [-e] [-h] [-l] [-a] [-t <timeout>] [check_name ...]

  -c, --etc             Path to the CouchDB configuration directory
  -d, --level           Minimum message severity level (default: notice)
  -e, --expert          Perform more detailed diagnostics
  -h, --help            Display help/usage
  -l, --list            Describe available diagnostic tasks
  -a, --all-nodes       Run weatherreport on all cluster nodes
  -t, --timeout         Timeout value (in ms) for each diagnostic check
  check_name            A specific check to run

[fr2lancer]

Hi @big-r81 Thanks for the commenting.

Just a bit hard to get it,

export PATH=$PATH:/opt/couchdb/erts-12.3.2.10/bin/
export PATH=$PATH:/opt/couchdb/etc/ <- is that what you meant?

./bin/weatherreport
{"init terminating in do_boot",{'cannot get bootfile','no_dot_erlang.boot'}}
init terminating in do_boot ({cannot get bootfile,no_dot_erlang.boot})

Crash dump is being written to: erl_crash.dump...done

[big-r81]

export PATH=$PATH:/opt/couchdb/etc/ <- is that what you meant?

No.

You need to add the path to the CouchDB etc directory as an argument to weatherreport like

$ ./bin/weatherreport --etc /path/to/couchdb/etc

[baylisscg]

That doesn't work. It looks like weatherreport relies on the no_dot_erlang.boot binary that's part of Erlang but not included in the erts distribution Couch bundles. So out-of-the-box weatherreport won't run at least from the official packages.

Edit: installing erlang-base on Ubuntu adds no_dot_erlang.boot. It still doesn't work but it's actually doing something now and returning Could not connect to the local cluster node

[baylisscg]

Looks like there needs to be a wrapper script like for remsh you can kick it off using what's in the package with

/opt/couchdb/erts-12.3.2.10/bin/erl +B -boot /opt/couchdb/releases/3.3.2/start_clean -noshell weatherreport/weatherreport/ebin -run escript start -extra /opt/couchdb/bin/weatherreport --etc /opt/couchdb/etc/ -d debug

But, again, it throws Could not connect to the local cluster node and a bunch of Bad rpc call executing errors but that's a different problem

[big-r81]

Linking apache/couchdb-pkg#123