I apologize for taking so long to reply to this email! But your suggestions
helped me a lot. I was finally able to get things rolling with robinhood
and the alerts. Thanks again!
On Tue, Jan 31, 2017 at 5:33 AM, LEIBOVICI Thomas <thomas.leibov...@cea.fr>
wrote:
>
> On 01/11/17 21:45, Michael Gilbert wrote:
>
> Hi,
>
> I’m just starting out with robinhood. I have gotten it setup and done an
> initial scan and can do the various rbh commands just fine. My problem is
> with setting up any of the actions or policies…I can’t seem to get any of
> them to work. One thing I’d really like to do is have an alert when the use
> of the filesystem goes over a certain percentage. I’ve followed the
> instructions here: https://github.com/cea-hpc/robinhood/wiki/How-to-
> setup-quota-alerts
>
> Hi,
>
> This doc was written for robinhood v2.x. There may have some changes for
> v3.0.
> See my comments inline in your config.
>
> and I’ve fiddled with adding alert_trigger blocks in my config, but
> nothing ever gets sent to any of the logs. Right now our filesystem is
> sitting at 80% usage and I setup the purge trigger for alerting on 50%
> usage. But alas I’m not getting any alerts. Here are system specs and
> config file:
>
> [root@tillit robinhood.d]# robinhood --version
>
> Product: robinhood
> Version: 3.0-1
> Build: 2016-12-02 13:57:02
>
> Compilation switches:
> Lustre filesystems
> Lustre Version: 2.8
> Address entries by FID
> MDT Changelogs supported
>
> Database binding: MySQL
>
> =======================================================
> Here’s my config file:
>
> # include template for alerts
> %include "includes/alerts.inc"
>
> This include is useless for what you need. This pre-defined policy is to
> alert about particular entries in the filesystem.
> But all you want is a warning about overall fs usage.
>
> # include template for checksuming
> %include "includes/check.inc"
>
> Do you plan to checksum your FS entries?
> If not, remove useless includes for better DB performance.
>
>
> define_policy list_ricky {
> status_manager = none;
> scope { owner == 'ricky' }
> default_action = cmd("ls {fullpath} >> /tmp/ricky_ls.out");
> default_lru_sort_attr = none;
> }
>
> list_ricky_rules {
> rule default {
> condition { creation > 15w }
> }
> }
>
> This definition and rules look good.
> You may need to define a "list_ricky_trigger" to run it at regular
> interval:
>
> list_ricky_trigger {
> trigger_on = scheduled;
> check_interval = 1d;
> }
>
>
> Purge_Trigger {
> # this quota applies to the entire filesystem
> trigger_on = global_usage;
> high_threshold_pct = 50;
> check_interval = 1m;
> alert_high = yes;
> }
>
> This should raise an alert when usage > 50%.
> But I notice that "purge" policy has not been declared at this point.
>
> Actually, what you want to do is having a trigger without a real policy
> run behind it.
>
> I suggest you define a dummy "df" policy:
>
> define_policy df {
> status_manager = none;
> scope = all;
> default_action = none;
> default_lru_sort_attr = none;
> }
>
> And the following trigger:
>
> df_trigger {
> trigger_on = OST_usage;
> high_threshold_pct = 92;
> check_interval = 1h;
> alert_high = yes;
> }
>
> then you can run robinhood with: --run=df --check-thresholds
> It will check the triggers and send an alert if needed.
>
> Thomas
>
>
>
> Purge_Trigger {
> # this quota applies to the OSTs
> trigger_on = OST_usage;
> high_threshold_pct = 92;
> check_interval = 1h;
> alert_high = yes;
> }
>
> alert_rules {
> ignore { last_mod < 1h }
>
> rule default {
> action = none;
> action_params { alert = clear; }
> condition = true;
> }
> }
>
>
> alert_trigger {
> trigger_on = periodic;
> check_interval = 1h;
> }
>
> #### fileclass definitions ####
>
> # fileclasses to display in reports (can still be used in policies)
> FileClass empty_files {
> definition { type == file and size == 0 }
> # report = yes (default)
> }
> FileClass small_files {
> definition { type == file and size > 0 and size <= 16MB }
> # report = yes (default)
> }
> FileClass std_files {
> definition { type == file and size > 16MB and size <= 1GB }
> }
> FileClass big_files {
> definition { type == file and size > 1GB }
> }
>
> #FileClass largedir {
> # definition { type == directory and dircount > 10000 }
> #}
>
> #### end policy rules ####
>
>
> General {
> fs_path = "/scratch";
> # filesystem type, as displayed by 'mount' (e.g. ext4, xfs, lustre,
> ...)
> fs_type = lustre;
> }
>
> EntryProcessor {
> nb_threads = 32;
> STAGE_GET_INFO_FS_threads_max = 16;
> }
>
> Log {
> debug_level = EVENT;
> log_file = "/var/log/robinhood/robinhood.log";
> report_file = "/var/log/robinhood/robinhood_actions.log";
> alert_file = "/var/log/robinhood/robinhood_alerts.log";
> alert_show_attrs = yes;
> }
>
> ListManager {
> MySQL {
> server = localhost;
> db = robinhood_lustre;
> user = robinhood;
> password_file = /etc/robinhood.d/.dbpassword;
> }
> }
>
> # Lustre 2.x only
> ChangeLog {
> MDT {
> mdt_name = "MDT0000";
> reader_id = "cl1";
> }
> polling_interval = 1s;
> }
>
> ==============================================
> My /etc/sysconfig/robinhood file is set to run —readlog —check-thresholds,
> per the instructions.
>
> Any help would be greatly appreciated!
>
> Thank you,
>
> Mike
>
>
>
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