similar to: Serializing objects to the database

I ran into an interesting error unserializing a file created with ascii=TRUE: R 3.5.1 (Windows or Linux): > unserialize(serialize(list(raw=as.raw(c(39,41))), NULL, version=2, ascii=TRUE)) Error in unserialize(serialize(list(raw = as.raw(c(39, 41))), NULL, version = 2, : ReadItem: unknown type 29, perhaps written by later version of R The same error happens when the

Hi, While debugging a network server I'm developing I noticed something unusual - call to unserialize() resulted in an error about loading a namespace. I was a bit taken back by this - why should unserializing an object cause a namespace lookup? Are there any other side-effects of unserialize() that I should be cautious about? I've been digging through the R_Unserialize() call, I

Hi all, I am not able to export an ALTREP object when `gctorture` is on in the worker. The package simplemmap can be used to reproduce the problem. See the example below ``` ## Create a temporary file filePath <- tempfile() con <- file(filePath, "wrb") writeBin(rep(0.0,10),con) close(con) library(simplemmap) library(parallel) cl <- makeCluster(1) x <- mmap(filePath,

I'm exploring latency overhead of parallel PSOCK workers and noticed that serializing/unserializing data back to the main R session is significantly slower on Linux than it is on Windows/MacOS with similar hardware. Is there a reason for this difference and is there a way to avoid the apparent additional Linux overhead? I attempted to isolate the behavior with a test that simply returns

> > But is there a way tell it all mailboxes for a user? For example, > something > > like: > > > > doveadm expunge -u user at domain mailbox ALL savedbefore 30d > > try: > doveadm expunge -u user at domain ALL savedbefore 30d > > just like the example thats here: > http://wiki2.dovecot.org/Tools/Doveadm/SearchQuery I already tried that. Did you?

The manpage https://wiki.dovecot.org/Tools/Doveadm/SearchQuery specifies: BODY string Matches messages, which contain string in the body part. and a bit further down: TEXT string Matches messages, which contain string in the message body. Where's the difference? -- Ralf Hildebrandt Gesch?ftsbereich IT | Abteilung Netzwerk Charit? - Universit?tsmedizin Berlin Campus Benjamin

This Index: src/main/altrep.c =================================================================== --- src/main/altrep.c (revision 79385) +++ src/main/altrep.c (working copy) @@ -275,10 +275,11 @@ SEXP psym = ALTREP_SERIALIZED_CLASS_PKGSYM(info); SEXP class = LookupClass(csym, psym); if (class == NULL) { - SEXP pname = ScalarString(PRINTNAME(psym)); + SEXP pname =

On Mon, 2 Nov 2020 at 02:22, Simon Urbanek <simon.urbanek at r-project.org> wrote: > > It looks like R sockets on Linux could do with TCP_NODELAY -- without (status quo): How many network packets are generated with and without it? If there are many small writes and thus setting TCP_NODELAY causes many small packets to be sent, it might make more sense to set TCP_QUICKACK instead.

I''ve been unserializing XML in PHP with the XML_Serializer class, and I''m wondering if anyone knows of such a class for Ruby. Nothing fancy, just perhaps a simple way of converting arbitrary XML to a Ruby object. Maybe this has been implemented somewhere already? Thanks, Raymond

Hi, sorry if this question is trivial or unclear, this is my first venture into mixed C/R programming (I am reasonably experienced in each separately). I am trying to write a serialization function for a format called typedbytes, which is used as an interchange format in Hadoop circles. Since I would need to serialize according to the internal R format many small R objects I looked at the c

Ok, David says on page 241 that sometimes a many-to-many relation with attributes are better implemented as an actual model instead of using HABTM. Well, I''ve got that situation and I can''t figure it out. All of the examples in the book have HABTM examples between 2 different tables, but I want to have a HABTM relation on 1 table with itself. (e.g., if I have a table Things,

I'm not sure the user would know ;). This is very system-specific issue just because the Linux network stack behaves so differently from other OSes (for purely historical reasons). That makes it hard to abstract as a "feature" for the R sockets that are supposed to be platform-independent. At least TCP_NODELAY is actually part of POSIX so it is on better footing, and disabling

First things first: Hi all! I''ve been sucked into prototype and script.aculo.us develpment thanks (because of?) the Symfony PHP framework... I''d like to implement a feature on some admin pages, but I can''t seem to find the right search term to google it; I want to ask the user to confirm exit of a page, if she has changed anything on the forms displayed on it. I have

Moi! I'm trying to add a rather long label to a y-axis, and it's so long that it won't fit into one line. However, things get strange when I try and split it over 2 lines. The problem seems to be the plus/minus symbol, which means I have to use expression(). I'm using R1.6.1 on Windoze 2000. As an example: thing1 <- expression(paste("log odds of survival probability (

Hey all, I''d like to abstract the process of updating different portions of the page after an Ajax request has taken place. Rather than simply putting the extra view logic in the standard rjs template, it seems to give better separation if there is a split between the core view logic (ie, inserting a row in a table), and updating any associated portions of the page. Is this possible? I

I have more or less the same problem. I''m trying to build a system where users can enter their friends. But the solutions seems not to work for me. I used same sql: CREATE TABLE `friends` ( `user_id` int(11) NOT NULL default ''0'', `friend_id` int(11) NOT NULL default ''0'', KEY `user_id` (`user_id`), KEY `friend_id` (`friend_id`),

I see this on MacOS as well, so likely not platform dependent. A little more diddling to try to narrow it down: > unserialize(serialize(as.raw(1), NULL, version=2, ascii=TRUE)) [1] 30 > unserialize(serialize(list(as.raw(1)), NULL, version=2, ascii=TRUE)) [[1]] [1] 30 > unserialize(serialize(list(raw=as.raw(1)), NULL, version=2, ascii=TRUE)) Error in unserialize(serialize(list(raw =

In my function I am trying to return multiple computed items (separated by commas). The function does what I need, but I get a warning message that multi-argument returns are deprecated. Is this a warning I should heed, or is there a more elegant and warning free way of achieving the same end? Thanks --------------------------------- [[alternative HTML version deleted]]

Hello ALL: How do I get R to list all possible orderings of 2 x's and 3 y's? It should look like this (which rows appear first is unimportant): x x y y y x y x y y x y y x y x y y y x y x x y y y x y x y y x y y x y y x x y y y x y x y y y x x Thanks, ANDREW

Evidently, the 'doveadm expunge' command requires a "mailbox" to be defined in the search string. But is there a way tell it all mailboxes for a user? For example, something like: doveadm expunge -u user at domain mailbox ALL savedbefore 30d Thanks, Michael