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1
Updates / Can i update phpMyAdmin?
« on: December 07, 2019, 10:01:27 AM »
I have phpMyAdmin 4.7.9 and latest stable version is 4.9.2
Just i want to know there are any problem if i update it to last version?
Just i want to know there are any problem if i update it to last version?
2
Installation / Re: What should i do with this RAM usage?
« on: July 31, 2019, 04:56:48 AM »ok first ssh onto the server console and type slabtop to look to see how much memory dentry is using.
Active / Total Objects (% used) : 21729664 / 22216467 (97.8%)
Active / Total Slabs (% used) : 1123731 / 1123757 (100.0%)
Active / Total Caches (% used) : 102 / 185 (55.1%)
Active / Total Size (% used) : 4164789.59K / 4233279.36K (98.4%)
Minimum / Average / Maximum Object : 0.02K / 0.19K / 4096.00K
OBJS ACTIVE USE OBJ SIZE SLABS OBJ/SLAB CACHE SIZE NAME
19754140 19754049 99% 0.19K 987707 20 3950828K dentry
1900764 1472678 77% 0.10K 51372 37 205488K buffer_head
254788 254745 99% 0.98K 63697 4 254788K ext4_inode_cache
89621 88583 98% 0.06K 1519 59 6076K size-64
81753 41708 51% 0.55K 11679 7 46716K radix_tree_node
21056 20715 98% 0.03K 188 112 752K size-32
14256 14236 99% 0.14K 528 27 2112K sysfs_dir_cache
13053 10906 83% 0.20K 687 19 2748K vm_area_struct
12782 9658 75% 0.05K 166 77 664K anon_vma_chain
11720 11601 98% 0.19K 586 20 2344K size-192
8321 8052 96% 0.07K 157 53 628K selinux_inode_security
7370 5386 73% 0.05K 110 67 440K anon_vma
5760 4352 75% 0.12K 192 30 768K size-128
5325 3901 73% 0.25K 355 15 1420K filp
whoah! dentry, go home you're drunk!
To clear that do:
# service nginx stop
Stopping nginx: [ OK ]
# service mysqld stop
Stopping mysqld: [ OK ]
# sync && echo 2 > /proc/sys/vm/drop_caches
# service mysqld start
Starting mysqld: [ OK ]
# service nginx start
Starting nginx: [ OK ]
You don't want to run this with mysql active as it can corrupt databases but this command basically drops dentry cache. I shut down my web server too. If you use a different web server you should probably stop that too. Basically kill all the disk writes you can while this is running. I have 48GB of RAM and I'll run this around 35GB used and it takes a couple min. Ya might also want to adjust the swapiness of your system cause ideally servers shouldn't swap.
Ok this is result slabtop :
Code: [Select]
Active / Total Objects (% used) : 1003516 / 1666731 (60.2%)
Active / Total Slabs (% used) : 51947 / 51947 (100.0%)
Active / Total Caches (% used) : 75 / 101 (74.3%)
Active / Total Size (% used) : 320712.64K / 426219.86K (75.2%)
Minimum / Average / Maximum Object : 0.01K / 0.25K / 12.75K
OBJS ACTIVE USE OBJ SIZE SLABS OBJ/SLAB CACHE SIZE NAME
358428 353041 98% 0.19K 17068 21 68272K dentry
131040 129786 99% 0.64K 5460 24 87360K proc_inode_cache
104997 69872 66% 1.01K 3387 31 108384K ext4_inode_cache
73871 55105 74% 0.57K 2639 28 42224K radix_tree_node
510861 53736 10% 0.10K 13099 39 52396K buffer_head
146368 48873 33% 0.06K 2287 64 9148K kmalloc-64
30566 30566 100% 0.12K 899 34 3596K kernfs_node_cache
60945 28552 46% 0.05K 717 85 2868K shared_policy_node
28665 27783 96% 0.19K 1365 21 5460K kmalloc-192
32640 26226 80% 0.04K 320 102 1280K ext4_extent_statusrity
18666 18666 100% 0.04K 183 102 732K selinux_inode_security
18796 18657 99% 0.21K 508 37 4064K vm_area_struct
14940 14940 100% 0.13K 498 30 1992K sharegroupinfo_4k
14364 13690 95 58K 53 27 8512K inode_cache
13104 12736 97% 0.07K 234 56 936K avc_node
10200 9442 92% 0.08K 200 51 800K anon_vma
8448 8448 100% 0.02K 33 256 132K kmalloc-16
8192 8192 100% 0.01K 16 512 64K kmalloc-8
6336 6336 100% 0.06K 99 64 396K ext4_free_data
5275 4894 92% 0.31K 211 25 1688K nf_conntrack_ffffffff95511640
7616 4862 63% 0.12K 238 32 952K kmalloc-128
6048 4651 76% 0.25K 189 32 1512K kmalloc-256
4592 4592 100% 0.07K 82 56 328K ext4_io_end
4242 4085 96% 0.09K 101 42 404K kmalloc-96
3780 3780 100% 0.11K 105 36 420K task_delay_info
3200 3200 100% 0.03K 25 128 100K kmalloc-32
3488 3157 90% 1.00K 109 32 3488K kmalloc-1024
2944 2944 100% 0.03K 23 128 92K jbd2_revoke_record_s
2916 2515 86% 0.11K 81 36 324K jbd2_journal_headAnd what if i reboot my server isn't better?
Thank you
3
Installation / Re: What should i do with this RAM usage?
« on: July 30, 2019, 05:24:53 PM »Maybe time to upgrade the server?I need more RAM?
4
Installation / What should i do with this RAM usage?
« on: July 30, 2019, 05:05:38 AM »
I have high RAM usage is that ok? and if the Memory RAM becomes 100%, does the server will be down?
5
CentOS-WebPanel Bugs / Why always i need to run sh /scripts/update_cwp command in CWPpro?
« on: March 21, 2019, 10:21:00 AM »
I have a CWPpro license and many days of the week i lose it automatically and always i need to run sh /scripts/update_cwp command to return it...
Why? what happening?
Why? what happening?
6
MySQL / Re: MariaDB restart warning after update it
« on: February 20, 2019, 11:35:22 PM »run that command to get your changed startup service activated
and i don't lose any settings or data if i run it, is it safe?
7
MySQL / MariaDB restart warning after update it
« on: February 20, 2019, 10:37:10 AM »
After update the mysql to 10.1.38-MariaDB and when I restart mysql (service mysql restart) I get this error:
Warning: mariadb.service changed on disk. Run 'systemctl daemon-reload' to reload units.
what is the bug?
Warning: mariadb.service changed on disk. Run 'systemctl daemon-reload' to reload units.
what is the bug?
9
MySQL / i have weird files in mysql directory
« on: February 02, 2019, 09:23:47 AM »
Hello,
i found these weird files in mysql directory and i don't know what is it and can i remove it?
i found it in /var/lib/mysql/
Thank you
i found these weird files in mysql directory and i don't know what is it and can i remove it?
i found it in /var/lib/mysql/
Thank you
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