Questions tagged [buffer]
The buffer tag has no usage guidance.
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Linux Auditd: Error receiving audit netlink packet (No buffer space available)
I have some Linux servers that are getting errors like the below in the logs...
auditd[1074]: Error receiving audit netlink packet (No buffer space available)
I know HOW to resolve the issue (tweak ...
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NGINX Buffer parameters causing issues with Python requests library
'm having problems uploading files through the Python requests library when I activate the parameters below in my NGINX proxy (where the connection goes)
proxy_buffering off;
proxy_request_buffering ...
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430
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Nginx: Disabling request body buffering for a dockerized project
I have Nginx 1.18 (not dockerized) to host a REST API application (running in a Docker Container) on Ubuntu 20.04, and I try to set proxy_request_buffering off to allow uploading large files with ...
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2
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syslog-ng: How to reduce high latency when forwarding logs to a syslog tcp consumer?
UPDATE 2: I've answered this via my new question at the link below. The root cause is behaviour by telegraf where by default it disconnects the TCP connection 5 seconds after the last received message....
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How to configure HAProxy to buffer the whole request including full body (buffering reverse proxy and big file uploads)?
We have a setup where front facing HTTP2 server is HAProxy and multiple backend servers run Apache+PHP. We have set HAProxy configuration option http-buffer-request. End users upload files (using ...
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Bufferbloat : Why not just have super large buffers? [closed]
A bit of a big picture question here but I was wondering what was the logic behind not just having incredibly large network related buffers?
One would think that getting as much of the data as close ...
- 1,018
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3
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MariaDB reduce buffer RAM usage per thread
I was looking for an answer to this question, but couldn't find it anywhere.
I want to reduce the memory usage per each database connection.
Here is what mysql tuner currently says about memory usage ...
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Encapsulate udp traffic info tcp with on-disk buffering
My ipfix flow receiver supports only udp (can't be replaced), which is not resistant to network failures and then I'm loosing flow data. To improve this I'm thinking about using socat, mkfifo between ...
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2
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What scale of data loss or corruption do I risk if I enable the write buffer on a file server?
I have found plenty of articles online warning of risk of data loss or corruption for drives with write-buffer enabled in the event of power loss. However, I haven't found any that actually refer to ...
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1
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System network buffers leaking/fully used, on Windows x64 with plenty of free RAM. How to diagnose and resolve?
This is related to this question and extends it.
The symptoms are the same - 2012R2 x64 with 64GB RAM (21GB used), ping and nslookup both work fine, but IE won't open web pages, net use X: \\share ...
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How does buffering work in a chain of Asterisk servers?
I have two Asterisk servers in a chain like this:
SIP client (G.729) <-SIP-> Asterisk 1 (converting G.729 to G.711) <-IAX2-> Asterisk 2 -> terminated to analog line.
When no buffering was ...
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2
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260
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RAM usage is high altough there is no high usage from proccesses?
Our virtual server has Centos 6 OS.
When I look to buffer/cache usage it seems less at first line. Proccesses're not use to memory highly. Do u have any idea about this situation? Can it be about ...
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1
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How to check buffer pool size in sql server?
Is there any way to find total allocated buffer pool size in sql server.In mysql we can find it by using the variable innodb_buffer_pool_size.Is there any equivalent for that in sql server?
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correlation of buffer, cache and "buffer cache"
I understand that a buffer is a location in RAM which is used by the kernel in order to cope with I/O operation between devices that operate at different speeds. Specifically, for the kernel, each ...
- 1,774
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No buffer available on Debian-Machine
I'm running a LAMP-Stack on a debian machine for a while now.
I configured it the way I'm used to, which never produced weird network or memory issues.
On random days at random time I'm getting a ...
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2
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Use SSD to buffer a storage Hard Drive [closed]
I have a specific storage server plan in mind. I want to use a SSD to buffer all data that I want written to a hard drive. The data would be written to the SSD, but copied to the HDD aswell. Kinda ...
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Does httpd ProxyPass buffer http POST payload before sending it to backend server?
I'm looking to assert whether, in the case of httpd used as a reverse proxy (mod_proxy_http & ProxyPass) and with a POST request (not chunked), if httpd buffers (memory and/or disk) complete ...
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1
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1k
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Set large buffer/queue on a network interface to emulate bufferbloat
I want to emulate large buffer delay on a specific interface. I have a simple dumbbell topology like:
PC1 eth0 <-----------------------> eth0 PC2
It would be good if I ping PC1 from PC2, ...
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3
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2
answers
1k
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Node.js program failing to read .log text file with Buffer error
I am attempting to view a log with a program called 'logger'. When I run node logger I get the following error:
<Buffer 66 72 75 69 74 69 73 68 79 0a>
The 'logger' program file looks as ...
31
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2
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Nginx: How To Completely Disable Request Body Buffering
I'm trying to set up Madsonic on my Ubuntu box and have Nginx run in front of it. Problem is, I keep getting this warning when I try to upload stuff through the web interface:
31115#0: *14 a client ...
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166
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Ping buffer size and time to respond on Windows HP Blade
I can see different time to respond when using large ping buffer size for one of our HP Blade servers. When using default buffer size, time to respond is the same on all servers.
As a first step to ...
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3
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2
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Mysql innodb_buffer_pool_size in relation to innodb_buffer_pool_instances
I run a virtual server with an Owncloud installation on it. Now Owncloud has the problem that the way it's developed at the moment, each file upload causes a little MySql overhead.
So is very ...
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1
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421
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Reduce TCP send buffer
I have a windows 2008 R2 server, an app is constantly polling another server (using a Flash Socket) while waiting for a certain event to occur on that server. We are talking about milliseconds. When ...
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nginx proxy_buffering and send response to client immediately
To break the question down to one sentence:
Is it Possible to turn on proxy_buffering in nginx, but sending the response of the backend server immediately to the client when the client is fast enough ...
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0
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3k
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OpenVPN sndbuf and rcvbuf
I would like to know what is the difference between the sndbuf and rcvbuf buffer used by OpenVPN and net.core.w/rmem_default or net.ipv4.tcp_r/wmem.
What does OpenVPN do when some value a provided ...
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1
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What do "key buffer size" and "total MyISAM indexes" unit sizes mean?
I ran MySQLTuner on my database to check if things are working correctly and optimally, but I was confused as to the units used for these two values.
Here is what the output looks like for ...
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154
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MySQL read-buffer-size overflow
What will happen if a low value was assigned in my.cnf to any of the per-thread buffers, when it fills?
I'm thinking of possible scenarios:
MySQL will gracefully call realloc for additional block ...
- 1,509
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920
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Bitnami apache + php-fpm stack can't disable buffer
I'm trying to get my service running that requires it output without a buffer. Is it possible to use php-fpm without a buffer with apache?
<IfDefine USE_PHP_FPM>
<Proxy "unix:/opt/...
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1
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Linux: What application is using my ram cache
I am wondering if I can see which application is using my ram buffer and cache. Also is there any time specified in kernel, when data is dropped from cache. My Ram is being full used by buffer and ...
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linux pseudo files for rotating streams
i've got some problem with rotating files. Situation is next:
one program like wireshark or vlc dumps all to one file, say netstream.bin
If i mv netstream.bin to netstream.bin.rotate program will ...
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4
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How to permanently increase innodb_buffer_pool_size on Ubuntu
I have read lot of posts & manuals to try to find out how to increase memory in MySQL 5.6 on Ubuntu, which say there are 3 methods:
By editing innodb_buffer_pool_size in the my.cnf
By command ...
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Set MySQL innodb buffer pool size on IIS7
I am using VPS, Windows 2008 r2, IIS7, MYSQL 5.1.73,
Hardward Config: Ram 2GB , Hardisk 40GB
On this VPS only 1 .NET application is running. Application is currently using by only 5 users.
I found ...
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1
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ESXi 5 Hypervisor fatal boot error
For over 2 years now I've been running ESXi 5 just fine from a pen drive. I recently had to move the server to a new location and started seeing an issue.
Once the system starts to boot, I get:
'...
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2
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Is there a way to get current txqueue utilization on e.g. eth0 or tun device?
I have detected drops on my tun0 interface.
They seem to have been caused by low txqueuelen setting. Now as I increased the txqueuelen value for the network device and there are no more drops yet - ...
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2
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"No buffer space available" on connect
I'm seeing the error message "No buffer space available" when processes call "connect" on a Linux virtual machine. I'm having trouble tracking down the cause - hopefully someone can help!
I've ...
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106
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2
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an upstream response is buffered to a temporary file
I have a rather large and slow (complex data, complex frontend) web application build in RoR and served by Puma with nginx as reverse proxy.
Looking at the nginx error log, I see quite a few entries ...
- 1,261
2
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2
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2k
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Network Buffer Usage
I am facing some issues with my Application, and am curious to know the network buffer usage at any given moment.
I am using a CentOS 6 linux Machine.
I know the Default values are present in /proc/...
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2
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How to share the clipboard between Windows Server 2008R2 and a guest running Ubuntu 12.04? [closed]
I use Windows Server 2008 R2 with Hyper-V and a guest running Ubuntu 12.04 LTS.
How can I share the clipboard between Windows Server 2008R2 and a guest running Ubuntu 12.04?
UPDATE
What protocols ...
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Cisco Port Buffer Memory
How can the total amount of port buffer memory be determined for Cisco switches?
Cisco doesn't seem to publish this data anywhere as part of the hardware specifications, but the information seems ...
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Mass memory used, buffer free, no apps started
Have searched for many times before asking for my problem.
I've 6gb RAM, 4 currently used, 2 free, buffers are low
# free -m
total used free shared buffers cached
...
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2
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Netstat -s showing (and growing) "packets pruned from receive queue" and "packets collapsed in receive queue"
we are seeing the following:
[root@primary data]# netstat -s | grep buffer ; sleep 10 ; netstat -s | grep buffer
20560 packets pruned from receive queue because of socket buffer overrun
...
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1
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Mysql crashing due to InnoDB not able to allocate memory
MySQL crashes every now and then due to, I believe, a large request hitting it above the innodb-buffer-pool-size set in my.cnf (currently at 210M), which I needed to set for mysql to start in the ...
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security_error_ring_buffer_recorded in system health log - what does it mean?
Our company is running a few servers for a couple of websites. The server are running Windows Server 2012 and for databases we have MS SQL Server 2012.
Today I was checking the log files located in:
...
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2
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3k
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MySQL: Increased buffer pool, ibdata1 corrupt?
I tried increasing innodb_buffer_pool_size via my.cnf from default 128m to 256m, but on restart attempt, mysql shutdown failed with:
130125 11:49:55 InnoDB: Initializing buffer pool, size = 256.0M
...
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Linux buffer memory always stays at zero
One of my hosted server is a Xen guest running Debian and linux kernel 2.6.32 then 2.6.38. It has been running fine for quite some time (more than a year) but I recently noticed something weird. For ...
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Nginx + MP4 module: buffer limits are being ignored
I have an nginx/1.2.3 server compiled with --with-http_mp4_module as a pseudostreaming server.
Streaming and seeking works fine except buffering. Tt seems like the buffer directives are being ...
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How can I force a merge of all WAL files in pg_xlog back into my base "data" directory?
Question:
Is there a way to tell Postgres (9.2) to "merge all WAL files in pg_xlog back into the non-WAL data files, and then delete all WAL files successfully merged?"
I would like to be able to "...
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Packet Buffer size in D-link DES-3552
What is the Packet Buffer size in D-link DES-3552?
I haven't found this information on any site (including official).
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Choosing a buffer size for large file transfer - SSH
I am trying to transfer large files over an internal network using Secure Shell SSH Client (3.2.9). The default buffer size is 32KB, which should be plenty, but my specific case makes me wonder if I ...
Nick Johnson
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0
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Tcp window size won't go above 130048
I have 2 servers set up with about 80ms latency between them. Both are centos 6 and run a java app that transfers data from on location to another. Both are on 1gbps connections.
I have been trying ...
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