similar to: shared memory - shmmax - shmall - page_size

Hello, I have the following entries in /boot/loader.conf: kern.ipc.shm_use_phys="1" kern.ipc.semmns="500" kern.ipc.semmni="40" kern.ipc.semmap="500" which are set correctly. Unfortunately, the following two entries kern.ipc.shmmax="512000000" kern.ipc.shmall="65526" do not change the corresponding values according to

Hello again, on CentOS 6 / 64 bit what is please the best way to permanently increase the shared memory? I'd like to give shared_buffers = 4096MB to PostgreSQL 8.4 on my machine with 16 GB RAM, but I currently only have: # sysctl -A|grep shm kernel.shmmax = 33554432 kernel.shmall = 2097152 kernel.shmmni = 4096 and this produces the error in /var/lib/pgsql/pgstartup.log:

On 17/02/16 14:32, Michael H wrote: > Hi, re-posting this with a more appropriate subject for my reply; > >> The easy answer is yes .. glibc requires so many things to be restarted, >> that is the best bet. Or certainly the easiest. >> >> Note: in CentOS 7, there is also a kernel update which is rated as >> Important .. so you should boot to that anyway:

On 2/17/2016 6:39 AM, Michael H wrote: > Some additional information; > > sysctl -a | grep kernel.shm > kernel.shmall = 8650752 > kernel.shmmax = 35433480192 > kernel.shmmni = 4096 > > which corresponds to my /etc/sysctl.conf > kernel.shmmax=35433480192 > kernel.shmall=8650752 > > but contradicts; > ulimit -a > [...] > stack size (kbytes,

Hi, re-posting this with a more appropriate subject for my reply; > The easy answer is yes .. glibc requires so many things to be restarted, > that is the best bet. Or certainly the easiest. > > Note: in CentOS 7, there is also a kernel update which is rated as > Important .. so you should boot to that anyway: >

> The easy answer is yes .. glibc requires so many things to be restarted, > that is the best bet. Or certainly the easiest. > > Note: in CentOS 7, there is also a kernel update which is rated as > Important .. so you should boot to that anyway: > https://lists.centos.org/pipermail/centos-announce/2016-February/021705.html > > Here is a good link to figure out what to

On 02/17/2016 08:39 AM, Johnny Hughes wrote: > On 02/17/2016 08:10 AM, Michael H wrote: >>> The easy answer is yes .. glibc requires so many things to be restarted, >>> that is the best bet. Or certainly the easiest. >>> >>> Note: in CentOS 7, there is also a kernel update which is rated as >>> Important .. so you should boot to that anyway:

I get this error starting tincd: tincd -n vpndr -d5 -D tincd 1.0.26 (Jan 22 2016 19:28:17) starting, debug level 5 /dev/net/tun is a Linux tun/tap device (tun mode) Executing script tinc-up System call `getaddrinfo' failed: Name or service not known Terminating Also keepalived return an error when tincd start. Starting as a daemon. Joutnalctl show this: Jan 22 23:14:49 systemd[1]:

On 02/17/2016 08:10 AM, Michael H wrote: >> The easy answer is yes .. glibc requires so many things to be restarted, >> that is the best bet. Or certainly the easiest. >> >> Note: in CentOS 7, there is also a kernel update which is rated as >> Important .. so you should boot to that anyway: >>

Executing: ip tuntap add vpndrif mode tun return Keepalived errors show when tincd start: Jan 22 23:41:19 Keepalived_vrrp[1999]: Netlink: filter function error Jan 22 23:41:19 Keepalived_healthcheckers[1998]: Netlink: filter function error Jan 22 23:41:19 systemd-sysctl[23246]: Overwriting earlier assignment of kernel/shmmax in file '/etc/sysctl.d/99-sysctl.conf'. Jan 22 23:41:19

On 17/02/16 14:44, Johnny Hughes wrote: > On 02/17/2016 08:39 AM, Johnny Hughes wrote: >> On 02/17/2016 08:10 AM, Michael H wrote: >>>> The easy answer is yes .. glibc requires so many things to be restarted, >>>> that is the best bet. Or certainly the easiest. >>>> >>>> Note: in CentOS 7, there is also a kernel update which is rated as

Fresh load of Centos6/64 from new ISO (downloaded 2 weeks ago?) and getting set up with PostgreSQL, one of the typical steps is to increase shmmax from its normal, conservative value (eg: 32 MB or something) to something far more aggressive. But in recent installs of CentOS 6, this value is generally huge, typically larger than the RAM installed on the machine! For example, fresh installs on

Db2 is running our of shared memory. The environment: Virtual computers running under VMware ESXi hypervisor version 5.5. Two different virtual machines, each running CentOS 5, db2 express C, and Apache/PHP and vmware tools. The machines each have 8 GB of memory, 4 processors, and a couple of hundred GB of disk space available. Everything is running on the 64 bit versions. The actual

Hi All, I've been tuning a server recently and just today this has started to appear in my top/htop output. [root at db1 ~]# ps -aux | grep kernel root 1011 0.0 0.0 212048 4532 ? Ss 13:34 0:00 /usr/bin/abrt-watch-log -F BUG: WARNING: at WARNING: CPU: INFO: possible recursive locking detected ernel BUG at list_del corruption list_add corruption do_IRQ: stack overflow: ear stack overflow

we are tried setup CENTOS 4.6 with Informix Dynamic server version 10 UC8 on DELL 6800. The problem we have is while doing bdatabase backup (ontape), we have error happen. I guess the error come from "semaphoe". server semaphore are: # sysctl -a|grep sem kernel.sem = 250 32000 128 128 # sysctl -a|grep shm vm.hugetlb_shm_group = 0 kernel.shmmni = 4096

I tested a little more... tincd does not create virtual interface device correctly on CentOS 7, I don't know where tincd stop, probably on " System call `getaddrinfo' failed: Name or service not known" I sent you before. Keepalived return that error I shown on every ip command but this is not a problem now, I'll see this as soon as possible. If I execute these commands tun

Hi all, I have a problem when trying to run my squid-cache with wccp. The problem is that after running for 1 hour the network hangs . I have in the message log "/kernel: xl0: watchdog timeout" and in the squid logs " No buffer space available" The system is dual xeon @500Mhz with 2.5GB of RAM and 10x9.1GB SCSI, FreeBSD 4.9-PRERELEASE from Thu Sep 11 and squid-2.5.STABLE3 build

Hi all: I have some kvm host(rhel 6.4, 2.6.32-358.0.1.el6.x86_64), I ran several windows guest on it(more than 10 guest on one host and the guest os are win7-32/win7-64/win2k8), but the guest network kept down automatically, lost package. I tried virtio drive and e1000 drive,but it didn't work. However, when I run cmd.exe ping some other subnet ip it worked. The host and guest are connected by

Hi, Anybody have success with postgresql 8.1.3 on a new Intel OS X box? All hints welcome, please! I installed postgres 8.1.3 via darwinports, and everything is great until the initdb step. Initdb fails on shmget saying it couldn''t allocate enough memory (see below). So, I edited /etc/rc and increased kern.sysv.shmmax from 4194304 to 41943040 (4MB to 40MB) After reboot and

dear All, I'm facing this routing problem, the setup is actualy part of ltsp, but I think this problem is Centos-specific. The server is a Dell Poweredge R210. The install is standard 6.4, updated. I have one nic facing the public internet: vi /etc/sysconfig/network-scripts/ifcfg-em1 DEVICE=em1 BOOTPROTO=none HWADDR=d4:ae:52:c1:28:2b NM_CONTROLLED=no ONBOOT=yes TYPE=Ethernet