similar to: interval or event to evaluate free disk space?

On 19 December 2017 at 00:11, Stefan Solbrig <stefan.solbrig at ur.de> wrote: > 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)

I''m struggling with activerecord and mysql blobs (uploading files)... blobs over 400K-ish cause the below exception... ActiveRecord::StatementInvalid in File#upload Mysql::Error: Lost connection to MySQL server during query: I''ve tried blob, mediumblob, and longblob... I''m using windows xp for development - and have not installed the mysql gem... simlar google

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 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"

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

We have been contemplating a complete rewrite of our web software, Noosphere, that runs PlanetMath (http://www.planetmath.org) and PlanetPhysics (http://www.planetphysics.org). The current development framework is simlar to slashcode (Apache-mod_perl-mysql). One big limitation is not being able to run different Noosphere modules installed for different sites on the same Apache server.

why does teh following code not work? a<-rnorm(50) dim(a)<-c(10,5) mycov<-function(mat,i,j){ sum((mat[,i]-mean(mat[,i]))*(mat[,j]-mean(mat[,j]))) } covmat<-function(X){ outer(1:dim(X)[2],1:dim(X)[2],function(v1,v2){mycov(X,v1,v2)})} from what i know covmat(a) should give the covariance matrix of a, but it gives a matrix with constant

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

All, I am working with NIR spectral data and it was great to find that the example in ?plsr also used spectral data. Unfortunately, I am having difficulty figuring out how the "yarn" dataset is structured to allow for the plsr model to read: library(pls) data(yard) yarn.oscorespls <- mvr(density ~ NIR, 6, data = yarn, validation = "CV", method = "oscorespls")

We know that in C++, the constructor of a static member will get called when the program starts up. I checked the generated IR code and found this is implemented by defining a __cxx_global_var_init() function and marked it as section ".text.startup" and assign it to @llvm.global_ctors. We also know that in C++, the constructor of a static thread_local member will *not* get called when

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

I am trying to make a graph with 4 scatter matrixes plots and couldn't do it. While trying to find a solution for this I also came across the idea of giving different values to the same argument for each of the lower and upper function but couldn't do it. (Examplified below with the col argument). The first problem of plotting 4 scatter matrixes in a graph is a problem of real

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I've been using the standard isolinux.cfg file for some time with great success. Have it currently display a file at the beginning with a little .lss graphic file, and some basic info then with the image names and info. Also have 4 of the help files linked to the F1 - F4 keys. But I just had a number of emails back

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

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

Hi, The method depends a bit if you use a distributed-only system (like me) or a replicated setting. I'm using a distributed-only setting (many bricks on different servers, but no replication). All my servers boot via network, i.e., on a start, it's like a new host. To rescue the old bricks, just set up a new server this the same OS, the same IP and and the same hostname (!very

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

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

Hi, I''m a newbie even though I''ve play with rails for a few months now. I would like to save several activerecord objects (not in the database) accross several screens. What is the prefered rails way to do this? Should copy all of their data to @session or use the member variables and put them into hidden fields? I am trying to move from "whatever kludge works" to