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ssh to DB server and su normal users very slow :

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List,

I have configured pgbackrest for the DB server and Repo Server(created the stanza info check all fine.  in these machines. 


/var/spool/pgbackrest  shows   the .Ok    for each WAL  and   the Repo server receiving the archiving of WAL in the archive directory . 


I didn't  schedule a pgbackrest  back  as of now  due to  an issue I am facing as follows. 

PROBLEM Statement:

I am facing a delay in ssh  root@dbserver_IP from my Desktop PC.  More than a minute to login to the root console from any remote terminal, but this issue was not there all these days.

 I have done two changes in the DB server :-

1.
pg_hba.conf entry

ie;  changed the entry       #local   all             all          trust 

To 
#local   all             all                                    md5 


It already having replication entry as 
local   replication     all                                     peer

2.
Added a .pgpass entry in the    DB user's    ~/dir/ with the following

[root@db1 ~]# cat /var/lib/edb/.pgpass
*:*:*:enterprisedb:password


Is this causing login delays ?   Local connection asking password(pg_hba.conf entry ) and   .pgpass contain the user and password for connecting ?


3. Even if I able to login to the DB server from the Remote Repo server after a minute or two, in side the DB server     doing a #  su enterprisedb    taking around 90 to 120 seconds to change the user as    enterprisedb user ??

Any hints much appreciated ..

Thanks in advance, 
Krishane



For more  details   I am pasting the top output     ( vCPU 16 nos , RAM 16 GB)

top - 10:11:43 up 5 days, 17:21,  5 users,  load average: 0.97, 1.38, 1.26
Tasks: 710 total,   1 running, 708 sleeping,   1 stopped,   0 zombie
%Cpu(s):  1.3 us,  0.6 sy,  0.0 ni, 97.1 id,  0.6 wa,  0.1 hi,  0.3 si,  0.0 st
MiB Mem :  15733.6 total,    664.0 free,   6371.1 used,  13237.6 buff/cache
MiB Swap:   8060.0 total,   7985.1 free,     74.9 used.   9362.4 avail Mem

    PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND
3547252 enterpr+  20   0 4656880 262304 252032 S   8.3   1.6   0:01.97 edb-postgres
   2588 enterpr+  20   0 4622104  12704  10888 S   2.0   0.1 106:10.00 edb-postgres
3554955 enterpr+  20   0 4661692 632052 621364 S   2.0   3.9   0:00.99 edb-postgres
3555894 enterpr+  20   0 4633432 628388 621056 S   1.3   3.9   0:00.26 edb-postgres
3525520 enterpr+  20   0 4658888 555596 543872 S   1.0   3.4   0:10.82 edb-postgres
3546456 enterpr+  20   0 4627288  40852  38016 S   1.0   0.3   0:00.30 edb-postgres
3554919 enterpr+  20   0 4655376 564024 557020 S   1.0   3.5   0:00.30 edb-postgres
3555796 enterpr+  20   0 4635024 565716 556840 S   1.0   3.5   0:00.22 edb-postgres
3556084 enterpr+  20   0 4653424  59156  51968 S   1.0   0.4   0:00.06 edb-postgres
3525597 enterpr+  20   0 4627444  44052  41088 S   0.7   0.3   0:00.47 edb-postgres
    377 root       0 -20       0      0      0 I   0.3   0.0   2:43.11 kworker/5:1H-kblockd
2923344 enterpr+  20   0 4625236 225176 223104 S   0.3   1.4   1:23.93 edb-postgres
3525722 enterpr+  20   0 4627328  99220  96128 S   0.3   0.6   0:01.99 edb-postgres
3555151 root      20   0  226580   4864   3456 R   0.3   0.0   0:00.15 top
3555807 enterpr+  20   0 4627444 350228 347136 S   0.3   2.2   0:00.03 edb-postgres
3556023 enterpr+  20   0 4653636  60052  52608 S   0.3   0.4   0:00.15 edb-postgres
3556026 enterpr+  20   0 4653424  59796  52608 S   0.3   0.4   0:00.22 edb-postgres
3556074 enterpr+  20   0 4653448  59540  52224 S   0.3   0.4   0:00.11 edb-postgres
3556075 enterpr+  20   0 4653372  59412  52224 S   0.3   0.4   0:00.18 edb-postgres


and  # ps -ax   shows 
[root@db1 ~]# ps -ax |grep "idle"

3511515 ?        I      0:00 [kworker/5:0-inet_frag_wq]
3512991 ?        Ss     0:00 postgres: enterprisedb postgres 10.21.134.205(56754) idle
3513003 ?        Ss     0:00 postgres: enterprisedb er_db 10.21.13.205(56770) idle
3513005 ?        Ss     0:00 postgres: enterprisedb tp_db 10.21.13.205(56772) idle
3513267 ?        Ss     0:00 postgres: enterprisedb er_db 10.23.0.203(39262) idle
3513476 ?        Ss     0:00 postgres: enterprisedb er_db 10.21.13.205(56839) idle
3513704 ?        Ss     0:00 postgres: enterprisedb mt_db 10.21.13.202(56608) idle
3513729 ?        Ss     0:00 postgres: enterprisedb er_db 10.23.0.203(44926) idle
3514113 ?        Ss     0:00 postgres: enterprisedb mt_db 10.21.13.202(53743) idle
3514374 ?        Ss     0:00 postgres: enterprisedb mt_db 10.21.13.202(58623) idle
3514397 pts/1    T      0:00 top
3515012 ?        Ss     0:00 postgres: enterprisedb mt_db 10.21.13.202(58686) idle
3515088 ?        Ss     0:00 postgres: enterprisedb mgt_db 10.21.13.202(58586) idle
3515942 ?        Ss     0:00 postgres: enterprisedb er_db 10.23.0.203(64844) idle
3515987 ?        Ss     0:00 postgres: enterprisedb er_db 10.23.0.203(27190) idle
3516230 ?        Ss     0:00 postgres: enterprisedb postgres 10.21.13.202(60354) idle
3516655 ?        Ss     0:00 postgres: enterprisedb er_db 10.21.13.205(57348) idle
3519209 ?        Ss     0:00 postgres: enterprisedb g_db 10.21.13.202(59611) idle
3519948 ?        Ss     0:00 postgres: enterprisedb postgres 10.21.13.204(58224) idle
3520004 ?        Ss     0:00 postgres: enterprisedb er_db 10.21.13.204(58239) idle
3521990 ?        Ss     0:00 postgres: enterprisedb er_db 10.23.0.203(39000) idle
3525800 ?        Ss     0:00 postgres: enterprisedb er_db 10.21.13.204(58606) idle
3525914 ?        Ss     0:00 postgres: enterprisedb er_db 10.21.13.204(59004) idle
3528403 ?        Ss     0:00 postgres: enterprisedb er_db 10.23.0.203(44250) idle
3532345 ?        Ss     0:00 postgres: enterprisedb er_db 10.23.0.203(64230) idle
3533852 ?        Ss     0:00 postgres: enterprisedb er_db 10.23.0.203(34514) idle
3533969 ?        Ss     0:00 postgres: enterprisedb g_db 10.21.13.202(58464) idle


3354541 ?        Ss     0:00 postgres: enterprisedb er_db 10.23.0.203(62640) idle
3356744 ?        I      0:00 [kworker/3:2]
3365496 ?        Ss     0:00 postgres: enterprisedb er_db 10.23.0.203(47376) idle
3367163 ?        Ss     0:00 postgres: enterprisedb er_db 10.23.0.203(48814) idle
3368555 ?        Ss     0:00 postgres: enterprisedb er_db 10.23.0.203(56520) idle
3370980 ?        Ss     0:00 postgres: enterprisedb er_db 10.23.0.203(19930) idle
3371824 ?        Ss     0:00 postgres: enterprisedb er_db 10.23.0.203(36006) idle
3372285 ?        Ss     0:00 postgres: enterprisedb er_db 10.23.0.203(37632) idle
3373166 ?        Ss     0:00 postgres: enterprisedb er_db 10.23.0.203(36862) idle
3379317 ?        Ss     0:00 postgres: enterprisedb er_db 10.23.0.203(17632) idle
3385442 ?        Ss     0:00 postgres: enterprisedb er_db 10.23.0.203(21096) idle
3385790 ?        Ss     0:00 postgres: enterprisedb er_db 10.23.0.203(47792) idle
3389859 ?        Ss     0:00 postgres: enterprisedb er_db 10.23.0.203(56094) idle
3397876 ?        Ss     0:00 postgres: enterprisedb er_db 10.23.0.203(32436) idle
3404172 ?        Ss     0:00 postgres: enterprisedb ad_db 10.23.0.206(37122) idle
3404779 ?        Ss     0:00 postgres: enterprisedb er_db 10.23.0.203(62946) idle
3405628 ?        Ss     0:00 postgres: enterprisedb er_db 10.23.0.203(37568) idle
3406414 ?        Ss     0:00 postgres: enterprisedb er_db 10.23.0.203(50994) idle
3408051 ?        Ss     0:00 postgres: enterprisedb er_db 10.23.0.203(14956) idle
3410935 ?        I      0:00 [kworker/7:2-events]
3432820 ?        Ss     0:00 postgres: enterprisedb er_db 10.23.0.203(31348) idle
3434126 ?        Ss     0:01 postgres: enterprisedb ad_db 10.23.0.206(48372) idle
3436428 ?        Ss     0:00 postgres: enterprisedb mt_db 10.23.0.207(36930) idle
3443063 ?        Ss     0:00 postgres: enterprisedb er_db 10.23.0.203(57624) idle





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