Skip to content
Jump to bottom

Phaseout lol #223

Merged
merged 4 commits into from
Jan 18, 2022
Merged

Phaseout lol #223

merged 4 commits into from
Jan 18, 2022

Commits on Jan 18, 2022

  1. clusterd: Start netlog received on 'macheteinfach' 

    The individual netlog services send messages from system logfiles (e.g.
/var/log/messages), which they consider interesting, to the clusterd of
a specific node. The receiving clusterd uses syslog() to log these
messages, so they end up in /var/log/message of that node.

Let the clusterd of 'macheteinfach' listen to messages from the netlog
services instead of that on 'lol'. We use 'macheteinfach', because the
only current consumer of these messages is /project/azubi, which happens
to run on 'macheteinfach'. This way, this project no longer needs to use
ssh to get to the right logfile.
    @donald
    donald committed Jan 18, 2022
    Configuration menu
    Copy the full SHA
    1e25bc5 View commit details
    Browse the repository at this point in the history

  2. netlog: Send netlog messages to 'macheteinfach' 

    Send 'interesting' messages to the clusterd on macheteinfach instead to
that one on 'lol'. See previous commit.
    @donald
    donald committed Jan 18, 2022
    Configuration menu
    Copy the full SHA
    9b06cb5 View commit details
    Browse the repository at this point in the history

  3. clusterd: Send stat messages to afk 

    Each clusterd sends regular status messages (version and load
information) to a single clusterd which currently just collects them for
operator review.

    buczek@macheteinfach:~/git/mxtools (phaseout-lol)$ telnet lol 234
    Trying 141.14.29.220...
    Connected to lol.
    Escape character is '^]'.
    clusterd 20220118-124724 stupid console
    For historical messages, grep "clusterd" from /var/log/messages on lol (or "tail -f /var/log/messages |grep cluster")
    v
            abelson : ['DOWN',0,28,'0.01','V1.108 - 20170215-151907',0,'434420.8','4.9.38.mx64.164']
                ace : ['UP','95647416.84',1,0,'20220118-124724',0,'921594.24','5.10.70.mx64.403']
             acedia : ['UP',0,1,'0.72','20220118-124724','0.00104166666666667','30613821.35','5.10.24.mx64.375']
                afk : ['UP','95647391.2',1,'0.1','20220118-124724',0,'5941821.44','4.14.87.mx64.236']
       agentwhiskey : ['UP',0,1,'0.07','20220118-124724',0,460800,'5.10.82.mx64.414']
    [...]
    Connection closed by foreign host.

The utility of this can be debated and maybe we should remove that
completely.

Anyway, for now send status messages to "afk" instead of "lol", because "lol" is
going to be taken out of commission.
    @donald
    donald committed Jan 18, 2022
    Configuration menu
    Copy the full SHA
    381abcd View commit details
    Browse the repository at this point in the history

  4. clusterd: Change area router for 141.14.31.255 to wtf 

    Some of the communications of clusterd is based on ip broadcasts. If the
nodes are distributed over multiple ipv4 networks, different nodes need
to do the broadcasts, because without special router setups, you can't
broadcasts to remote subnets.

For this reason, one node is a designated broadcaster for each subnet.
This node is called "area router" in the code. Data to be sent to all
nodes is sent via unicast to each area router which, in turn, brodcast
it to the networks they are resposible for.

Move the area router role for network 141.14.16/0 with broadcast address
141.14.31.255 from lol to wtf.
    @donald
    donald committed Jan 18, 2022
    Configuration menu
    Copy the full SHA
    86feb86 View commit details
    Browse the repository at this point in the history