similar to: Sessions And Active Record

Hi Alex, Thank you for the quick reply! Yes, I'm aware that using ?plain? hardware with replication is more what GlusterFS is for. I cannot talk about prices where in detail, but for me, it evens more or less out. Moreover, I have more SAN that I'd rather re-use (because of Lustre) than buy new hardware. I'll test more to understand what precisely "replace-brick"

Dear all, I'm rather new to glusterfs but have some experience running lager lustre and beegfs installations. These filesystems provide active/active failover. Now, I discovered that I can also do this in glusterfs, although I didn't find detailed documentation about it. (I'm using glusterfs 3.10.8) So my question is: can I really use glusterfs to do failover in the way described

Hi Stefan, There is a known issue with gluster 3.12.x builds (see [1]) so you may be running into this. Please take a look at [1] and try out the workaround provided in the comments. Regards, Nithya [1] https://bugzilla.redhat.com/show_bug.cgi?id=1517260 On 9 March 2018 at 13:37, Stefan Solbrig <stefan.solbrig at ur.de> wrote: > Dear all, > > I have a problem with df after

Hi Stefan, I think what you propose will work, though you should test it thoroughly. I think more generally, "the GlusterFS way" would be to use 2-way replication instead of a distributed volume; then you can lose one of your servers without outage. And re-synchronize when it comes back up. Chances are if you weren't using the SAN volumes; you could have purchased two servers

Dear all, I have a problem with df after I upgraded from 3.12.4 to 3.12.6 All four bricks are shown als online, and all bricks are being used. gluster v stats shows the correct sizes for all devices. However, df does not show the correct glusterfs volume size. It seems to me that it "forgets" one brick. Although all bricks are used when I'm writing files. best wishes, Stefan

Hi, I think the columns and table in migration should be able to have an optional "display_name" set manually. Something like: create_table :people, {display_name => "Personne"} do |t| t.column :first_name :string, :display_name => "Prénom". end Let me explain my point of view: Rails is a framework made to write programs in English. You see it when you

Dear all, I have problem with glusterfs 3.12.4 mkdir -p fails with "no data available" when umask is 0022, but works when umask is 0002. Also recursive copy (cp -R or cp -r) fails with "no data available", independly of the umask. See below for an example to reproduce the error. I already tried to change transport from rdma to tcp. (Changing the transport works, but

Hi, Just get started with Rails and I''m trying to read ahead and find out whether Active Record supports auto-creation of database tables for you? Is this supported, or is the concept that you write your own database DDL to do this? Thanks -- Posted via http://www.ruby-forum.com/.

Hi there, We''re about to move our persistent store from a MySQL database to an RPC-based data store. However, we really like programming against the AR-api, and would like to keep as much as possible from, so that we can keep stuff like callbacks, validations, relations etc. How would you do it? Does it make sense to replace the mysql-adapter with and RPC-based adapter, translating

Forgot to mention, sometimes I have to do force start other volumes as well, its hard to determine which brick process is locked up from the logs. Status of volume: rhev_vms_primary Gluster process TCP Port RDMA Port Online Pid ------------------------------------------------------------------------------ Brick spidey.ib.runlevelone.lan:/gluster/brick/rhev_vms_primary

Dear Dan, thanks for the quick reply! I actually tried restarting all processes (and even rebooting all servers), but the error persists. I can also confirm that all birck processes are running. My volume is a distrubute-only volume (not dispersed, no sharding). I also tried mounting with use_readdirp=no, because the error seems to be connected to readdirp, but this option does not change

Dear all, I faced a problem with a glusterfs volume (pure distributed, _not_ dispersed) over RDMA transport. One user had a directory with a large number of files (50,000 files) and just doing an "ls" in this directory yields a "Transport endpoint not connected" error. The effect is, that "ls" only shows some files, but not all. The respective log file shows this

I have a problem with ruby on rails validation total_book_toy.rhtml ================ <%= text_field ''book1'', ''title1'' %> <%= text_field ''book2'', ''title2'' %> I want to validate these text_field so user can''t insert same title. However, I was stuck how to do it. Or maybe you have another way how to do it.

Hi, I''ve been investigating various caching methods provided by Rail. I first looked at the hash_cache module and function. In testing it, I noticed it wasn''t actually caching anything. Then looking at the source code, I noticed that it attempted to hold its cache in a class variable - which won''t actually be saved from page request to page because of the way that rails

I have a question about how ActiveRecord handles data types. When I enter text in a text_field (meaning, a field in the GUI) which belongs to a numeric field in the database, Active Record automaticly converts it to 0, because that''s what the to_f/to_i method of a string does. Is it also possible to have Active Record enforce the types, so that when you enter text for a numeric

Hi all I want to configure glusterfs to expose iSCSI target. I followed this artical https://pkalever.wordpress.com/2016/06/23/gluster-solution-for-non-shared-persistent-storage-in-docker-container/ but when I install tcmu-runner. It doesn't work. I setup on CentOS7 and installed tcmu-runner by rpm. When I run targetcli, it not show *user:glfs* and *user:gcow* */>* ls o- /

Hi all, Is there a way to invoke validations at times other than save, create and update? I know that I can do this by writing my own validation checks using errors.add_[blah], but I''d like to leverage the existing validation code. What I have is two sets of fields in a record, set A and set B. Both sets must be validated on record create. However, the trouble is that after

Stefan, Sounds like a brick process is not running. I have notice some strangeness in my lab when using RDMA, I often have to forcibly restart the brick process, often as in every single time I do a major operation, add a new volume, remove a volume, stop a volume, etc. gluster volume status <vol> Does any of the self heal daemons show N/A? If that's the case, try forcing a restart on

Hi all, with the option "cluster.min-free-disk" set, glusterfs avoids placing files bricks that are "too full". I'd like to understand when the free space on the bricks is calculated. It seems to me that this does not happen for every write call (naturally) but at some interval or that some other event triggers this. i.e, if I write two files quickly (that together

I have an application that is used by only a small number of persons. This app stores its sessions in the database. When the user logs out, the session is removed, but of course, there is always the possibility that the user will forget to logout, and the session will go stale. In other webapps, I have used a sweeper ruby script that I run as a cron job to periodically clean these out. But I