I'm trying to debug a distroless POD by trying kubectl debug which uses ephemeral containers that are disabled by default in aws eks. I'm using aws eks 1.21
✗ kubectl debug -it opentelemetry-collector-agent-6hqvf --image=busybox --target=some-app
error: ephemeral containers are disabled for this cluster (error from server: "the server could not find the requested resource")
So how to enable them for EKS?
do remote ssh connection in my tmux terminal (zsh) and remote shell is also zSH.
[devops@postgres-prod]~% vi /var/lib/pgsql/9.6/etc/postgresql.conf^A0A^A^A^E^A
So it doesn't react on Ctrl+A, Ctrl+E
When I click save & restart VMWare Replication Appliance VRM service:
Getting this error Error applying startup configuration: Server returned 'request expired' less than 0 seconds after request was issued, but it shouldn't have expired for at least 600 seconds.
https://vrm.vmware.domain.local:5480/service/hms/cgi/health.py gives green in XML
LookupService Address: vcenter.vmware.domain.local (and it's pingable from ssh @ vrm.vmware.domain.loca, DNS is set in networkingl)
SSO Admin: [email protected] (Such SSO domain exists in vcenter and I can login in vcenter web UI with vmware.domain.local\Administrator)
VRM Host: vrm.vmware.domain.local (also pinged from multiple hosts)
VRM Site Name: VRM NPB
vcenter Server Address: vcenter.vmware.domain.local
vcenter server port: 80
If I click Start VRM Service, it gets into
VRM service is started and quickly reverts to
VRM service is stopped
Installation of vcenter6 and vsphere replication appliance is done from ISOs (appliances, latest downloaded from VMWare 2 days ago)
vcenter complains on HMS service: Failed to request health status from https://vrm.vmware.domain.local:5480/service/hms/cgi/health.py
(however in my browser I can easily open this URL, yet the certs are self signed)
What can be done?
I even debugged the script the VRM UI sends http GET https://vrm.vmware.domain.local:5480/service/hms/cgi/hms.py?cmd=checklscert&ls=vcenter.vmware.domain.local&lsthumbpr…
{
"result":{
"vc":{
"uuid":"56d6e005-2229-4bc6-99e9-7969c8883efd",
"notBefore":"26 Jun 2015 12:56:47 GMT",
"notAfter":"20 Jun 2025 12:56:47 GMT",
"valid":"Certificate validation error",
"thumbprint":"8D:E6:70:13:D2:4A:2D:D6:D7:27:21:C3:FA:36:48:56:F3:EA:91:EA",
"subject":{
"C":"US",
"CN":"vcenter.vmware.domain.local",
"L":"Unknown",
"O":"Unknown",
"ST":"Unknown",
"OU":"Unknown"
},
"issuer":{
"C":"US",
"CN":"CA",
"DC":"vmware",
"L":"Unknown",
"O":"vcenter.vmware.domain.local",
"ST":"Unknown",
"OU":"Unknown"
}
},
"result":"ok",
"ls":{
"notBefore":"26 Jun 2015 12:56:47 GMT",
"notAfter":"20 Jun 2025 12:56:47 GMT",
"valid":"true",
"thumbprint":"8D:E6:70:13:D2:4A:2D:D6:D7:27:21:C3:FA:36:48:56:F3:EA:91:EA",
"subject":{
"C":"US",
"CN":"vcenter.vmware.domain.local",
"L":"Unknown",
"O":"Unknown",
"ST":"Unknown",
"OU":"Unknown"
},
"issuer":{
"C":"US",
"CN":"CA",
"DC":"vmware",
"L":"Unknown",
"O":"vcenter.vmware.domain.local",
"ST":"Unknown",
"OU":"Unknown"
}
}
},
"error":null
}
If I'm trying to unregister the appliance I get this error: The appliance has to be configured correctly for unregister to work.
When I simulate primary DNS down - I totally break Replica Set, as master node - doesn't see other nodes and becomes SECONDARY 5-10 seconds later
this what my primary node (mongodb-cluster-shard-01-rA.site-aws.com) displays when primary DNS is shut down:
siteRS0:SECONDARY> rs.status()
{
"set" : "siteRS0",
"date" : ISODate("2014-08-10T03:16:22Z"),
"myState" : 2,
"members" : [
{
"_id" : 0,
"name" : "mongodb-cluster-shard-01-rA.site-aws.com:27017",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 1913839,
"optime" : Timestamp(1407628608, 1),
"optimeDate" : ISODate("2014-08-09T23:56:48Z"),
"self" : true
},
{
"_id" : 1,
"name" : "mongodb-cluster-shard-01-rB.site-aws.com:27017",
"health" : 0,
"state" : 8,
"stateStr" : "(not reachable/healthy)",
"uptime" : 0,
"optime" : Timestamp(1407628608, 1),
"optimeDate" : ISODate("2014-08-09T23:56:48Z"),
"lastHeartbeat" : ISODate("2014-08-10T03:16:08Z"),
"lastHeartbeatRecv" : ISODate("2014-08-10T03:15:52Z"),
"pingMs" : 0,
"syncingTo" : "mongodb-cluster-shard-01-rA.site-aws.com:27017"
},
{
"_id" : 2,
"name" : "mongodb-cluster-shard-01-arbiter.site-aws.com:30000",
"health" : 0,
"state" : 8,
"stateStr" : "(not reachable/healthy)",
"uptime" : 0,
"lastHeartbeat" : ISODate("2014-08-10T03:16:19Z"),
"lastHeartbeatRecv" : ISODate("2014-08-10T03:15:45Z"),
"pingMs" : 0
},
{
"_id" : 3,
"name" : "mongodb-cluster-shard-01-rC.site-aws.com:27017",
"health" : 0,
"state" : 8,
"stateStr" : "(not reachable/healthy)",
"uptime" : 0,
"optime" : Timestamp(1407628608, 1),
"optimeDate" : ISODate("2014-08-09T23:56:48Z"),
"lastHeartbeat" : ISODate("2014-08-10T03:16:16Z"),
"lastHeartbeatRecv" : ISODate("2014-08-10T03:15:52Z"),
"pingMs" : 0,
"syncingTo" : "mongodb-cluster-shard-01-rA.site-aws.com:27017"
},
{
"_id" : 4,
"name" : "mongodb-cluster-shard-01-rA-backup-hidden.site-aws.com:27017",
"health" : 0,
"state" : 8,
"stateStr" : "(not reachable/healthy)",
"uptime" : 0,
"optime" : Timestamp(1407628608, 1),
"optimeDate" : ISODate("2014-08-09T23:56:48Z"),
"lastHeartbeat" : ISODate("2014-08-10T03:16:00Z"),
"lastHeartbeatRecv" : ISODate("2014-08-10T03:15:49Z"),
"pingMs" : 0,
"syncingTo" : "mongodb-cluster-shard-01-rA.site-aws.com:27017"
}
],
"ok" : 1
}
if I go to the log I see a lot of getaddrinfo messages:
[root@mongodb-cluster-shard-01-rA ec2-user]# tail /mongo/log/mongod.log
2014-08-10T02:35:13.044+0000 [rsHealthPoll] getaddrinfo("mongodb-cluster-shard-01-arbiter.site-aws.com") failed: Name or service not known
2014-08-10T02:35:13.469+0000 [rsHealthPoll] getaddrinfo("mongodb-cluster-shard-01-rC.site-aws.com") failed: Name or service not known
2014-08-10T02:35:13.469+0000 [rsHealthPoll] couldn't connect to mongodb-cluster-shard-01-rC.site-aws.com:27017: couldn't connect to server mongodb-cluster-shard-01-rC.site-aws.com:27017 (0.0.0.0) failed, address resolved to 0.0.0.0
2014-08-10T02:35:13.968+0000 [rsHealthPoll] getaddrinfo("mongodb-cluster-shard-01-rA-backup-hidden.site-aws.com") failed: Name or service not known
2014-08-10T02:35:13.968+0000 [rsHealthPoll] couldn't connect to mongodb-cluster-shard-01-rA-backup-hidden.site-aws.com:27017: couldn't connect to server mongodb-cluster-shard-01-rA-backup-hidden.site-aws.com:27017 (0.0.0.0) failed, address resolved to 0.0.0.0
2014-08-10T02:35:17.059+0000 [rsHealthPoll] getaddrinfo("mongodb-cluster-shard-01-rB.site-aws.com") failed: Name or service not known
2014-08-10T02:35:17.059+0000 [rsHealthPoll] couldn't connect to mongodb-cluster-shard-01-rB.site-aws.com:27017: couldn't connect to server mongodb-cluster-shard-01-rB.site-aws.com:27017 (0.0.0.0) failed, address resolved to 0.0.0.0
2014-08-10T02:35:18.476+0000 [rsHealthPoll] getaddrinfo("mongodb-cluster-shard-01-rC.site-aws.com") failed: Name or service not known
2014-08-10T02:35:18.669+0000 [rsHealthPoll] couldn't connect to mongodb-cluster-shard-01-rC.site-aws.com:27017: couldn't connect to server mongodb-cluster-shard-01-rC.site-aws.com:27017 (0.0.0.0) failed, address resolved to 0.0.0.0
2014-08-10T02:35:18.976+0000 [rsHealthPoll] getaddrinfo("mongodb-cluster-shard-01-rA-backup-hidden.site-aws.com") failed: Name or service not known
[root@mongodb-cluster-shard-01-rA ec2-user]# tail /mongo/log/mongod.log
2014-08-10T02:35:17.059+0000 [rsHealthPoll] getaddrinfo("mongodb-cluster-shard-01-rB.site-aws.com") failed: Name or service not known
2014-08-10T02:35:17.059+0000 [rsHealthPoll] couldn't connect to mongodb-cluster-shard-01-rB.site-aws.com:27017: couldn't connect to server mongodb-cluster-shard-01-rB.site-aws.com:27017 (0.0.0.0) failed, address resolved to 0.0.0.0
2014-08-10T02:35:18.476+0000 [rsHealthPoll] getaddrinfo("mongodb-cluster-shard-01-rC.site-aws.com") failed: Name or service not known
2014-08-10T02:35:18.669+0000 [rsHealthPoll] couldn't connect to mongodb-cluster-shard-01-rC.site-aws.com:27017: couldn't connect to server mongodb-cluster-shard-01-rC.site-aws.com:27017 (0.0.0.0) failed, address resolved to 0.0.0.0
2014-08-10T02:35:18.976+0000 [rsHealthPoll] getaddrinfo("mongodb-cluster-shard-01-rA-backup-hidden.site-aws.com") failed: Name or service not known
2014-08-10T02:35:20.051+0000 [rsHealthPoll] getaddrinfo("mongodb-cluster-shard-01-arbiter.site-aws.com") failed: Name or service not known
2014-08-10T02:35:20.051+0000 [rsHealthPoll] couldn't connect to mongodb-cluster-shard-01-arbiter.site-aws.com:30000: couldn't connect to server mongodb-cluster-shard-01-arbiter.site-aws.com:30000 (0.0.0.0) failed, address resolved to 0.0.0.0
2014-08-10T02:35:23.677+0000 [rsHealthPoll] getaddrinfo("mongodb-cluster-shard-01-rC.site-aws.com") failed: Name or service not known
2014-08-10T02:35:24.066+0000 [rsHealthPoll] getaddrinfo("mongodb-cluster-shard-01-rB.site-aws.com") failed: Name or service not known
2014-08-10T02:35:24.066+0000 [rsHealthPoll] couldn't connect to mongodb-cluster-shard-01-rB.site-aws.com:27017: couldn't connect to server mongodb-cluster-shard-01-rB.site-aws.com:27017 (0.0.0.0) failed, address resolved to 0.0.0.0
[root@mongodb-cluster-shard-01-rA ec2-user]#
[root@mongodb-cluster-shard-01-rA ec2-user]# nslookup mongodb-cluster-shard-01-rC.site-aws.com
Server: 10.233.147.18 (this is secondary dns)
Address: 10.233.147.18#53
Name: mongodb-cluster-shard-01-rC.site-aws.com
Address: 10.220.153.211
after I start the primary dns (.119): then soon I will get it resolved by primary DNS
[root@mongodb-cluster-shard-01-rA ec2-user]# nslookup mongodb-cluster-shard-01-rC.site-aws.com
Server: 10.35.147.119
Address: 10.35.147.119#53
I get everything back to normal once primary DNS is up & running. My replica gets primary and all is OK. So what did I miss or doing wrong?
[root@mongodb-cluster-shard-01-rA log]# cat /etc/resolv.conf
; generated by /sbin/dhclient-script
search us-west-2.compute.internal site.com
nameserver 10.35.147.119
nameserver 10.233.147.18
nameserver 172.16.0.23
nameserver 172.16.0.23
options {
#listen-on port 53 { 127.0.0.1; 10.224.3.36};
listen-on-v6 port 53 { ::1; };
directory "/var/named";
dump-file "/var/named/data/cache_dump.db";
statistics-file "/var/named/data/named_stats.txt";
memstatistics-file "/var/named/data/named_mem_stats.txt";
allow-query { any; };
recursion no;
dnssec-enable yes;
dnssec-validation yes;
dnssec-lookaside auto;
/* Path to ISC DLV key */
bindkeys-file "/etc/named.iscdlv.key";
managed-keys-directory "/var/named/dynamic";
notify yes;
also-notify { 10.233.147.18; };
};
logging {
channel default_debug {
file "data/named.run";
severity dynamic;
};
};
zone "site-aws.com" IN {
type master;
file "site-aws.com.zone";
allow-update { none; };
allow-query { any; };
allow-transfer {10.233.147.18; };
};
include "/etc/named.rfc1912.zones";
include "/etc/named.root.key";
"site-aws.com.zone" defined:
$TTL 86400
@ IN SOA ns1.site-aws.com. root.site-aws.com. (
2013042203 ;Serial
300 ;Refresh
1800 ;Retry
604800 ;Expire
86400 ;Minimum TTL
)
; Specify our two nameservers
IN NS ns1.site-aws.com.
; IN NS ns2.site-aws.com.
; Resolve nameserver hostnames to IP, replace with your two droplet IP addresses.
ns1 IN A 10.224.3.36
;ns2 IN A 2.2.2.2
; Define hostname -> IP pairs which you wish to resolve
devops IN A 10.35.147.119
mongodb-cluster-shard-01-rA IN A 10.230.9.223
mongodb-cluster-shard-01-rB IN A 10.17.6.57
mongodb-cluster-shard-01-rC IN A 10.220.153.211
mongodb-cluster-shard-01-arbiter IN A 10.251.112.114
mongodb-cluster-shard-01-rA-backup-hidden IN A 10.230.20.83
mongodb-cluster-backup IN A 10.230.20.83
prod-redis-cluster-01-rA IN A 10.226.207.86
ns1 IN A 10.35.147.119
ns2
IN A 10.233.147.18
secondary DNS /etc/named.conf:
options {
#listen-on port 53 { 127.0.0.1; 10.224.3.36};
listen-on-v6 port 53 { ::1; };
directory "/var/named";
dump-file "/var/named/data/cache_dump.db";
statistics-file "/var/named/data/named_stats.txt";
memstatistics-file "/var/named/data/named_mem_stats.txt";
allow-query { any; };
recursion no;
dnssec-enable yes;
dnssec-validation yes;
dnssec-lookaside auto;
/* Path to ISC DLV key */
bindkeys-file "/etc/named.iscdlv.key";
managed-keys-directory "/var/named/dynamic";
};
logging {
channel default_debug {
file "data/named.run";
severity dynamic;
};
};
zone "site-aws.com" IN {
type slave;
file "site-aws.com.zone";
allow-query { any; };
allow-transfer {10.35.147.119; }; ## NS1 is allowed for zone transfer when necessary ##
masters {10.35.147.119; }; ## the master NS1 is defined ##
};
include "/etc/named.rfc1912.zones";
include "/etc/named.root.key";
secondary dns got synced site-aws.com.zone - file exists.
So question, why replica mongodb is behaved that way. How can I make sure that if primary DNS gets down, replica (and all other nodes that references internal nodes by FQDN remain operational)
I'm following this guidance http://docs.mongodb.org/ecosystem/tutorial/backup-and-restore-mongodb-on-amazon-ec2/
I have 4 EBS 1000 IOPS volumes assigned to instance.
These 4 volumes through MDADM assembled into software RAID10 array.
I want to do backups through EBS Snapshots as explained in the article above.
Mongodb says - that I need to
mongo shell>db.runCommand({fsync:1,lock:1}); -- this will lock the db for writing
....run snapshot creation...
mongo shell> db.$cmd.sys.unlock.findOne(); -- this will unlock the db for writing
So, do I need to unlock the DB for writing after I issued the command ec2-create-snapshot or after it's finished and the actual snapshot is created?
thanks, Dmitry
I'm new to puppet and trying to create manifest which will request all agents to update all currently installed yum packages.
What should be the best way to describe this in manifest?
traceroute from 2 different environments is giving different results. One is passed succesfully, the other one failed. I don't believe that would be our own switch/router - otherwise I would not be able to get in from amazon
Any idea why?
GOOD: (from amazon ec2 instance, linux)
[ec2-user@devops rxprep_php]$ traceroute hg.saritasa.com
traceroute to hg.saritasa.com (208.122.225.186), 30 hops max, 60 byte packets
1 ec2-50-112-0-200.us-west-2.compute.amazonaws.com (50.112.0.200) 0.623 ms 0.790 ms 0.770 ms
2 205.251.232.62 (205.251.232.62) 0.869 ms 0.851 ms 0.874 ms
3 205.251.232.140 (205.251.232.140) 9.020 ms 8.990 ms 0.972 ms
4 205.251.232.91 (205.251.232.91) 19.642 ms 205.251.232.89 (205.251.232.89) 19.945 ms 19.870 ms
5 205.251.226.178 (205.251.226.178) 19.715 ms 205.251.226.224 (205.251.226.224) 19.531 ms 205.251.225.163 (205.251.225.163) 13.149 ms
6 ae-14.r04.sttlwa01.us.bb.gin.ntt.net (129.250.201.169) 13.835 ms ae-13.r04.sttlwa01.us.bb.gin.ntt.net (129.250.201.165) 13.981 ms ae-8.r04.sttlwa01.us.bb.gin.ntt.net (198.104.202.189) 20.264 ms
7 ae-6.r20.sttlwa01.us.bb.gin.ntt.net (129.250.5.42) 45.034 ms ae-7.r20.sttlwa01.us.bb.gin.ntt.net (129.250.5.46) 51.497 ms 13.453 ms
8 ae-5.r21.snjsca04.us.bb.gin.ntt.net (129.250.3.39) 43.423 ms 30.370 ms 37.342 ms
9 ae-0.r20.snjsca04.us.bb.gin.ntt.net (129.250.2.96) 31.042 ms 36.866 ms 30.529 ms
10 ae-4.r21.lsanca03.us.bb.gin.ntt.net (129.250.6.10) 53.771 ms 52.657 ms 45.189 ms
11 ae-2.r05.lsanca03.us.bb.gin.ntt.net (129.250.5.86) 48.797 ms ae-4.r21.lsanca03.us.bb.gin.ntt.net (129.250.6.10) 52.063 ms 57.826 ms
12 10g.ntt.lax01.xfernet.net (198.172.90.2) 40.450 ms 47.377 ms ae-2.r05.lsanca03.us.bb.gin.ntt.net (129.250.5.86) 50.988 ms
13 pc4.ds1.lax01.xfernet.net (67.43.160.70) 39.603 ms 10g.ntt.lax01.xfernet.net (198.172.90.2) 42.272 ms pc4.ds1.lax01.xfernet.net (67.43.160.70) 39.431 ms
14 ge-50.ar8.lax01.xfernet.net (67.43.160.134) 41.007 ms 40.796 ms 40.983 ms
15 ge-50.ar8.lax01.xfernet.net (67.43.160.134) 42.412 ms 208.122.225.186 (208.122.225.186) 43.084 ms !X 47.612 ms !X
16 208.122.225.186 (208.122.225.186) 40.778 ms !X 40.278 ms !X 40.759 ms !X
[ec2-user@devops rxprep_php]$
BAD: (from local mac, through cox.net)
traceroute 208.122.225.186
traceroute to 208.122.225.186 (208.122.225.186), 64 hops max, 52 byte packets
1 192.168.0.1 (192.168.0.1) 150.454 ms 2.254 ms 1.176 ms
2 10.71.96.1 (10.71.96.1) 9.066 ms 8.837 ms 7.916 ms
3 ip68-4-11-190.oc.oc.cox.net (68.4.11.190) 10.616 ms 10.308 ms 9.094 ms
4 ip68-4-11-95.oc.oc.cox.net (68.4.11.95) 13.825 ms
ip68-4-11-231.oc.oc.cox.net (68.4.11.231) 10.319 ms
ip68-4-11-95.oc.oc.cox.net (68.4.11.95) 10.127 ms
5 ip68-4-11-230.oc.oc.cox.net (68.4.11.230) 11.533 ms
ip68-4-11-94.oc.oc.cox.net (68.4.11.94) 8.890 ms
ip68-4-11-230.oc.oc.cox.net (68.4.11.230) 11.588 ms
6 langbprj02-ae2.rd.la.cox.net (68.1.1.19) 14.186 ms 11.401 ms 11.799 ms
7 ethernet11-1.csr1.lax2.gblx.net (159.63.23.21) 14.444 ms 14.192 ms 11.811 ms
8 ae12-90g.scr4.lax1.gblx.net (67.17.75.17) 11.888 ms
ae14-90g.scr3.lax1.gblx.net (67.16.162.21) 12.878 ms
ae12-90g.scr4.lax1.gblx.net (67.17.75.17) 12.678 ms
9 e5-1-40g.ar6.lax1.gblx.net (67.17.111.65) 11.779 ms * 137.418 ms
10 10g.glbx.lax01.xfernet.net (64.208.170.38) 11.817 ms 12.781 ms *
11 pc4.ds1.lax01.xfernet.net (67.43.160.70) 120.354 ms 11.536 ms 12.486 ms
12 ge-50.ar8.lax01.xfernet.net (67.43.160.134) 14.364 ms * 15.378 ms
13 * * *
14 * * *
15 * * *
16 * * *
17 * * *
18 * * *
19 * * *
20 * * *
21 * * *
22 * * *
23 * * *
24 * * *
25 * * *
26 * * *
27 * * *
28 * * *
29 * * po2.ar4.lax1.gblx.net (67.16.132.214) 15.285 ms
30 * * *
31 * po2.ar4.lax1.gblx.net (67.16.132.214) 20.602 ms *
32 * * *
33 * * *
34 * * *
35 * * *
36 * * *
37 * * *
38 * * *
39 * * po2.ar4.lax1.gblx.net (67.16.132.214) 15.628 ms
40 * * *
41 * * *
42 * * *
43 * * *
44 * * *
45 * * *
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47 * * *
48 * * *
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63 * * *
64 * * *
I modified /etc/rc.local on my Amazon AWS AMI
#!/bin/sh
touch /var/lock/subsys/local
# setup hostname properly
/usr/bin/python /root/automation/initSystem.py
so last line calls Python script that does configuration (Env variables, hostname, networking settings etc) and then does /etc/init.d/network restart
if I run rc.local manually /etc/rc.local everything is just fine
when system auto starts it doesn't work. So touch command (2nd line - worked), but python script is never executed, at least results of it's execution (setting up a hostname and restarting network interface seems doesn't work at all)
Any ideas?
what I want to achive
prod.com to be immediately moved to prod.com/cms
when I did Redirect permanent / /cms
I got a lot of /cmscmscmscmscms etc. Any ideas?
my vhost
<VirtualHost *:443>
ServerName prod.com
DocumentRoot /home/www/sites/prod/html/development
<Directory /home/www/sites/prod/html/development>
AllowOverride All
</Directory>
SSLEngine on
SSLCACertificateFile /etc/pki/tls/certs/gd_bundle.crt
SSLCertificateFile /etc/pki/tls/certs/prod.crt
SSLCertificateKeyFile /etc/pki/tls/private/prod.key
<FilesMatch "\.(cgi|shtml|phtml|php)$">
SSLOptions +StdEnvVars
</FilesMatch>
BrowserMatch "MSIE [2-6]" \
nokeepalive ssl-unclean-shutdown \
downgrade-1.0 force-response-1.0
BrowserMatch "MSIE [17-9]" ssl-unclean-shutdown
</VirtualHost>
my .htaccess
RewriteEngine On
RewriteCond %{REQUEST_URI} ^/API [NC]
RewriteRule ^(.*)$ /Application/API/api.php [L]
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule (.*)$ /Application/controller.php [L]
DirectoryIndex /Application/controller.php
sar -u 1 | awk '{print $9}'
so this will give me "CPU Idle" value every second. I'd like to get email in this case the value goes to "0" 10 times in a row?
What would be the appropriate way to do it?
I found a preliminary solution
sar -u 1 | awk '{ if (int($9)==0) {
i=i+1; {
print i, $9
}
}
if (int($9)>=0) {
i=0
}
if (i>=10) print "sending email"
}'
but in last line where I print "sending email" I can't put call to mutt, like this
sar -u 1 | awk '{ if (int($9)==0) {
i=i+1; {
print i, $9
}
}
if (int($9)>=0) {
i=0
}
if (i>=10) mutt -s "VPNC Problem" [email protected] < /home/semenov/strace.output
}'
the problem is that it says "syntax" error in mutt command call. Any ideas?
Possible Duplicate:
Huge amount of TIME_WAIT connections says netstat
I have 2167 connections like that:
tcp 0 0 127.0.0.1:34276 127.0.0.1:3306 TIME_WAIT
tcp 0 0 127.0.0.1:34910 127.0.0.1:3306 TIME_WAIT
tcp 0 0 127.0.0.1:3306 127.0.0.1:42749 TIME_WAIT
tcp 0 0 127.0.0.1:34871 127.0.0.1:3306 TIME_WAIT
tcp 0 0 127.0.0.1:34845 127.0.0.1:3306 TIME_WAIT
tcp 0 0 127.0.0.1:34018 127.0.0.1:3306 TIME_WAIT
tcp 0 0 127.0.0.1:35336 127.0.0.1:3306 TIME_WAIT
tcp 0 0 127.0.0.1:34617 127.0.0.1:3306 TIME_WAIT
tcp 0 0 127.0.0.1:3306 127.0.0.1:33750 TIME_WAIT
tcp 0 0 127.0.0.1:34072 127.0.0.1:3306 TIME_WAIT
tcp 0 0 127.0.0.1:34141 127.0.0.1:3306 TIME_WAIT
[root@saritasa semenov]# netstat -an | grep 127.0.0.1 | grep 3306 | wc
1360 8160 121040
Any ideas why and how can I resolve it?
Mysql SHOW PROCESSLIST; does give me just 5 connections. Any ideas?
I'm trying to shrink the size of Logical Volume
--- Logical volume ---
LV Name /dev/vg_linuxph53/lv_home
VG Name vg_linuxph53
LV UUID bWrIb2-ek2G-2G3Y-a6kA-8nnB-8fM4-6OenbJ
LV Write Access read/write
LV Status available
# open 1
LV Size 55.12 GiB
Current LE 1764
Segments 2
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:2
so I tried to unmount it first
[root@linxuph53 sites]# umount /home
umount: /home: device is busy.
(In some cases useful info about processes that use
the device is found by lsof(8) or fuser(1))
[root@linxuph53 sites]#
as outlined this article, but it didn't work. What should I do?
Also it seems that on FC14 I don't have e2fsadm utility installed.
I need to find all folders on a Linux server with directory name config and put a .htaccess in that directory containing "deny from all".
I'm currently trying to run:
find /home/www/sites/ -type d -name "config" -exec sh -c 'echo "deny from all" > .htaccess' \;
But it doesn't work.
What have I missed?
CPU Ready time is really low on my physical server, however ASP.NET(2nd) application is not running fast. VM has 1 vCPU and 12GB of memory where only 6GB is used.
Sometimes when team starts working with the application - it spikes to 100% CPU Utilization. Additionally when we perform backup in background, the app slows down even further.
As IIS is multi threaded environment, I'm planning to add additional vCPU and give higher access to resources in VM Setting.
Please critique if you think this will not help.
thanks, Dmitry
this is my drbd config
resource mysql {
protocol C;
floating 10.100.101.1:7788 {
device /dev/drbd0;
disk /dev/VolGroup00/LogVol02;
meta-disk internal;
}
floating 10.100.101.2:7788 {
device /dev/drbd0;
disk /dev/VolGroup01/LogVol02;
meta-disk internal;
}
}
disk on LVMs on both nodes was set to 50G, I increased it with LVM on both nodes +4G (54G total now)
but when I try to run
[root@db1 ~]# resize2fs /dev/VolGroup00/LogVol02
resize2fs 1.39 (29-May-2006)
resize2fs: Device or resource busy while trying to open /dev/VolGroup00/LogVol02
Couldn't find valid filesystem superblock.
[root@db1 ~]#
It says I can't. What should I do? Should I stop DRBD? And if so - should I do additional steps after resizing and starting up DRBD?
thanks, Dmitry
I do iftop -i eth1 > out.txt
It does produce the file with "encrypted" UI content such as
[(B[)0[[1;80r[[mO[[?7h[[?1h[=[[H[[J[[0;7mO Listening on eth1 [[1;48H[[mO12.5Kb
Is it possible to display this as a web xhtml output somehow?
cat out.txt on my console does produce a normal iftop window but when I do the same thing over the web I get the content above. I understand that it is "managed" on kernel level. Is the task that I want to perform possible?
I setup bind-dlz and need mysql start prior NAMED when system starts here is what I have
[root@semenov]# ./test.sh
mysql 0:off 1:off 2:on 3:on 4:on 5:on 6:off
named 0:off 1:off 2:off 3:on 4:on 5:on 6:off
lrwxrwxrwx. 1 root root 15 Apr 15 18:57 /etc/rc3.d/S93mysql -> ../init.d/mysql
lrwxrwxrwx. 1 root root 15 Apr 15 18:57 /etc/rc3.d/S90named -> ../init.d/named
here is what I have in mysql init script
# Comments to support chkconfig on RedHat Linux
# chkconfig: 2345 84 16
# description: A very fast and reliable SQL database engine.
# Comments to support LSB init script conventions
### BEGIN INIT INFO
# Provides: mysql
# Required-Start: $local_fs $network $remote_fs
# Should-Start: ypbind nscd ldap ntpd xntpd
# Required-Stop: $local_fs $network $remote_fs
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: start and stop MySQL
# Description: MySQL is a very fast and reliable SQL database engine.
### END INIT INFO
so when I remove named from chkconfig and have there just mysql, it starts with order number 84: /etc/rc3.d/S84mysql -> ../init.d/mysql
but when I add named inside chkconfig it's order changes to 93: /etc/rc3.d/S93mysql -> ../init.d/mysql
as a result mysql will be starting after named and named will fail (no sql available)
any ideas what I'm doing wrong?
here is what I have in named init script
# chkconfig: 345 90 16
# description: named (BIND) is a Domain Name Server (DNS) \
# that is used to resolve host names to IP addresses.
# probe: true
### BEGIN INIT INFO
# Provides: $named
# Required-Start: $local_fs $network $syslog
# Required-Stop: $local_fs $network $syslog
# Default-Start:2 3 4
# Default-Stop: 0 1 2 3 4 5 6
# Short-Description: start|stop|status|restart|try-restart|reload|force-reload DNS server
# Description: control ISC BIND implementation of DNS server
### END INIT INFO
thanks, Dmitry
I have inctreased the size of my virtual HD from 79GB to 100GB on VMWare ESXi 4.1 Virtual Machine
http://screencast.com/t/j6Y2SmLES3P7
after that I have restarted VM but when I go to VM
[root@linxuph53]# vgdisplay
--- Volume group ---
VG Name vg_linuxph53
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 4
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 3
Open LV 3
Max PV 0
Cur PV 1
Act PV 1
VG Size 79.50 GiB
PE Size 32.00 MiB
Total PE 2544
Alloc PE / Size 2544 / 79.50 GiB
Free PE / Size 0 / 0
VG UUID Y269kC-3Jzh-hSHz-Jgwv-lkVO-K69T-mzrqaZ
I don't see that I got new UNALLOCATED space, so technically I can't expand my /home partition
--- Logical volume ---
LV Name /dev/vg_linuxph53/lv_home
VG Name vg_linuxph53
LV UUID bWrIb2-ek2G-2G3Y-a6kA-8nnB-8fM4-6OenbJ
LV Write Access read/write
LV Status available
# open 1
LV Size 35.16 GiB
Current LE 1125
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:2
any ideas?
after I rebooted VM and running fdisk -l
that's what I see
[root@linxuph53 semenov]# fdisk -l
Disk /dev/sda: 107.4 GB, 107374182400 bytes
255 heads, 63 sectors/track, 13054 cylinders, total 209715200 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00074e78
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 1026047 512000 83 Linux
/dev/sda2 1026048 167772159 83373056 8e Linux LVM
Disk /dev/dm-0: 41.3 GB, 41305505792 bytes
255 heads, 63 sectors/track, 5021 cylinders, total 80674816 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/dm-0 doesn't contain a valid partition table
Disk /dev/dm-1: 6308 MB, 6308233216 bytes
255 heads, 63 sectors/track, 766 cylinders, total 12320768 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/dm-1 doesn't contain a valid partition table
Disk /dev/dm-2: 37.7 GB, 37748736000 bytes
255 heads, 63 sectors/track, 4589 cylinders, total 73728000 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/dm-2 doesn't contain a valid partition table
thanks, Dmitry
Here is what I have on my Linux Box
[root@linxuph53 logs]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_linuxph53-lv_root
38G 11G 26G 29% /
tmpfs 4.0G 0 4.0G 0% /dev/shm
/dev/sda1 485M 54M 406M 12% /boot
/dev/mapper/vg_linuxph53-lv_home
35G 30G 3.9G 89% /home
/home is being used by website content and I'd like to shift unused space from / to /home like 6-10 of additional GBs
Is this possible? I can't shutdown the service, is there anyway dynamically allocate more space to /home partition?
I can do this in windows without any issues, but have no idea how to do it on Linux
OS - Fedora Core 14
thanks, Dmitry
We're using ARECA (http://www.areca-backup.org/) for backups of our Windows & Linux Servers. The biggest problem we have experienced is that once backup starts on one of our Linux Virtual Machine (acting as LAMP Server) = the sites on that VM basically stop to respond, as ARECA it seems consume most of available resources and our LAMP sites stops to work properly.
We don't use "ZIPPing" option on Areca, so we just send files over network (with Areca). Any ideas what we should tune here?
Or maybe you can recommend a different (better) solution, as when we have Areca started our CPU% consumptions jumps to 30% immediately.
Thank you for your help
thanks, Dmitry