search for: skyrocket

...oup scans all the campus networks using Nessus and some custom rules to look for security problems. What I am seeing within my college is my Samba PDC getting beat-up when the scans go though. They scan a block of PCs at the same time looking for accounts w/o passwords. I see the load average skyrocket for a nice, normal 1.x to 49 and above. The smblogs show many lines like the following: ... 2005/01/10 12:19:10, 2] auth/auth.c:check_ntlm_password(312) check_ntlm_password: Authentication for user [Guest] -> [Guest] FAILED with error NT_STATUS_NO_SUCH_USER [2005/01/10 12:19:11, 2] auth...

[Arrow] [Idea] [Exclamation] Subject: ~RED ALERT**URGENT 2009 [CDC::"girl's suicide rate 'skyrockets' 76%" [Shocked] .....What is causing this [Question] and, Help stop this [Exclamation] ]~ ******* ------>>> Which is more important, $$$ or your daughters [Question] <<<------ ******* ~~~RED ALERT~~~ {~See CDC quote---76% 'skyrocket' rise is real danger all acro...

...tem at around 1.5 MB/sec, network connectivity suddently started to show signs of lag. The ping would spike up to ~1 second every 5 seconds or so. This affects the server in question and all hosts routing traffic through it (i.e., it's not a userland-only problem). When this happens, the load skyrockets (> 10 on an otherwise mostly idle server) and kjournald can be seen consuming CPU cycles like mad. When the write to the file is paused, the problem immediately goes away, and then resurfaces. This is on a 2.4.19 kernel. Is this a known problem with ext3fs? Granted, we cannot be sure ext3fs...

...HW Raid 5 (MegaRaid) 4 logical processors (dual+ht). uname -a: Linux ewc05 2.6.5-7.151-smp #1 SMP Fri Mar 18 11:31:21 UTC 2005 i686 i686 i386 GNU/Linux If the number of connections exceeds 155 (per samba counting), the system load quick escalates to like 700+, and the user count also suddenly skyrockets. a majority of the samba processes seem to get stuck in state "D" inode count usage is unrealisticically high. :) I deleted all the samba db files, no change. If I put in a max connections limit of 155, it doesn't "fork bomb". Where should I start looking? -mjoyner@ew...

...encing). It would be useful to allow me to force the remaining nodes to just understand the node was taken down purposefully, and move on with their lives. A real world example: OCFS2 hosting files used with a website, driven by Apache. If a node goes down, the load average on all remaining nodes skyrockets to 500 or more, as the Apache processes all enter a state of uninterruptible sleep. This triggers alerts, pages, and on occasion, application specific triggers (web app) that show a "Too Busy" page when the load average is too high (for instance, that which vBulletin does). It would be...

...on my desk using rsync. I've attempted to do this using a Raspberry Pi as a remote device, but when I set it up the dovecot replication process seems to need to start the replication over from scratch even after the rsync is done. I know this is happening as the disk utilisation on the Pi skyrockets once the replication starts and I end up with thousands of double ups of all the mails ... which defeats the entire point of the process. If I do an identical configuration but on a third Gentoo x86_64 VM locally it all works as expected. No double ups of mails and the "catchup" b...

.... Everything seems fine until midday, then what we start to see is the number of smbd processes going up whilst the number of connections (determined from smbstatus -b) dropping, students with connections starting getting slow responses and no new connections are being made, load on the system skyrockets. stopping samba and restarting seems to cure the problem, but the problem can re-occur. We are in a desperate panic at the moment as the students are all doing assignments and this is seriously affecting their work. We have tried various tweaks to Samba (deadtime, change notify timeout), the tc...

So far we've tracked down four bugs using _GLIBCXX_DEBUG, all of them quite subtle and some of them leading to serious problems like heap corruption. But we've also discovered that compile time can skyrocket in some cases as the library does its checks. The standard library complexity guarantees don't apply with _GLIBCXX_DEBUG. Therefore, we should figure out if we want to enable this in debug builds by default, include a configure option for it or create some new target (Developer?) that does...

...he weather station. After much too long, I finally realized that the problem was that my permissions on /dev/ttyS0 were too restrictive - I change them, and now the program connects up, and pulls in data. The next problem, however, is that as soon as I start the program, the system load starts to skyrocket. 5, 6, 7... and climbing. Soon, the mouse starts to become jerky, and its hard to change windows. Within about 2 minutes, the mouse doesn't work at all, and remote terminals stop responding. The system load is up in the 40s. As soon as I unplug the serial cable, everything goes back to nor...

>From time to time a jboss process would end eating all, the available CPU and the load avg would skyrocket. Once the operators restarted jboss, the system''d be normal again (sometimes for weeks) until the next incident Since we moved the app from a v440 running Solaris 10 8/07 to a t2000 running Solaris 10 5/08 the problem started to happen more frequently (2-3 times a week). The only other...

...; >> I've attempted to do this using a Raspberry Pi as a remote device, but when I set it up the dovecot replication process seems to >> need to start the replication over from scratch even after the rsync is done. I know this is happening as the disk utilisation >> on the Pi skyrockets once the replication starts and I end up with thousands of double ups of all the mails ... which defeats >> the entire point of the process. >> >> If I do an identical configuration but on a third Gentoo x86_64 VM locally it all works as expected. No double ups of mails and &gt...

...tually > saw performance on the CentOS 5 boxes decrease. By the time we had > only a few CentOS 5 boxes left, they were performing so badly as to be > effectively worthless. > > What we observed in parallel to this upgrade process was that the read > latency on our NetApp device skyrocketed. This in turn caused all > compute jobs to actually run slower, as it seemed to move the > bottleneck from the client servers' OS to the NetApp. This is > somewhat counter-intuitive: CentOS 6 performs faster, but actually > results in net performance loss because it creates a bo...

...intend to limit $server_ip to 2Mbit max traffic ow, the problem is after i run the script htb seems to ignore the limit and traffic for the client stays in over 3mbit. but after a while of running with the htb active the server owner complains that the loading times of pages hosted on the server skyrocket and that ssh access becomes sluggish. Normally that server has about 4/5 Mbit/s of outgoing traffic measured by the iptables/mrtg script, doing a: #tc -s -d class show dev eth1 shows: class htb 1:11 parent 1:1 prio 0 quantum 26214 rate 2Mbit ceil 2Mbit burst 2621b/8 mpu 0b cburst 2621b/8 mpu 0b...

...entOS 6 boxes increased, we actually saw performance on the CentOS 5 boxes decrease. By the time we had only a few CentOS 5 boxes left, they were performing so badly as to be effectively worthless. What we observed in parallel to this upgrade process was that the read latency on our NetApp device skyrocketed. This in turn caused all compute jobs to actually run slower, as it seemed to move the bottleneck from the client servers' OS to the NetApp. This is somewhat counter-intuitive: CentOS 6 performs faster, but actually results in net performance loss because it creates a bottleneck on our cent...

...ctually > saw performance on the CentOS 5 boxes decrease. By the time we had > only a few CentOS 5 boxes left, they were performing so badly as to be > effectively worthless. > > What we observed in parallel to this upgrade process was that the read > latency on our NetApp device skyrocketed. This in turn caused all > compute jobs to actually run slower, as it seemed to move the > bottleneck from the client servers' OS to the NetApp. This is > somewhat counter-intuitive: CentOS 6 performs faster, but actually > results in net performance loss because it creates a bo...

On 05/25/2016 09:54 AM, Kelly Lesperance wrote: > What we're seeing is that when the weekly raid-check script executes, performance nose dives, and I/O wait skyrockets. The raid check starts out fairly fast (20000K/sec - the limit that's been set), but then quickly drops down to about 4000K/Sec. dev.raid.speed sysctls are at the defaults: It looks like some pretty heavy writes are going on at the time. I'm not sure what you mean by "nose dives&quo...

...rsync. > > I've attempted to do this using a Raspberry Pi as a remote device, but when I set it up the dovecot replication process seems to > need to start the replication over from scratch even after the rsync is done. I know this is happening as the disk utilisation > on the Pi skyrockets once the replication starts and I end up with thousands of double ups of all the mails ... which defeats > the entire point of the process. > > If I do an identical configuration but on a third Gentoo x86_64 VM locally it all works as expected. No double ups of mails and > the &quot...

...can connect. Top shows a few smbd processes maxing out the cpu and the load (which is usually < 1.0) gradually climbs up to 10, 20, and onward. If I stop smb and winbind with the init scripts, then the load goes through the roof. I've waited to see if it will clear itself up, but the load skyrockets up over 1000 so I kill all the smb processes with "sudo kill -9 `pgrep smbd`" and then the load stops climbing and after about 5 or 10 minutes will be back down to under 1.0. At that point I can restart smb and winbind and everything is ok again. I don't see anything unusual with...

i have installed ddo on my ubuntu it works fine when starting it up and for the 1st 5 or ten minutes then it freezes my computer anyone have a fix for this?

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