On 12/21/2016 02:17 PM, n...@olansoft.com wrote:
Hi.

Perhaps i've sent it to wrong mail-list previously.

After the upgrade postgresql had a strange behavior. After the crash, server launch now 
take a long time, up to 30-40 minutes sometimes. When connecting to the server (as well 
as in the log), the message - "the database system is starting up". Startup 
process consumes 0.4 - 1% CPU.

What upgrade and how was it done?

What crash and what caused it?

In particular why are you seeing multiple crashes?

What is the log just before the crash?

What is the log after the the "database system is starting up" part?



Tried different version 9.5.[2,3,4], 9.6.1 (9.4 works fine). On the Internet 
this problem is not met, perhaps the problem lies in a combination of different 
factors (configuration database, Linux kernel), may be my config is wrong?

Do you mean you searched for this problem description and could not find it?


Technical details:

Gentoo Linux 4.4.2-hardened
current pg version 9.6.1

## pg config:

listen_addresses = '*'
port = 5432
max_connections = 500
shared_buffers = 2048MB
temp_buffers = 16MB
work_mem = 64MB
maintenance_work_mem = 512MB
max_stack_depth = 4MB
dynamic_shared_memory_type = posix
wal_level = replica
wal_buffers = 8MB
checkpoint_completion_target = 0.85
archive_mode = on
archive_command = 'gzip < %p > /home/pgbasebackup/xlogs/%f.gz'
max_wal_senders = 3
effective_cache_size = 9GB
log_min_duration_statement = 1500
log_timezone = 'Asia/Yekaterinburg'
datestyle = 'iso, dmy'
timezone = 'Asia/Yekaterinburg'
lc_messages = 'ru_RU.UTF-8'
lc_monetary = 'ru_RU.UTF-8'
lc_numeric = 'ru_RU.UTF-8'
lc_time = 'ru_RU.UTF-8'
default_text_search_config = 'pg_catalog.russian'
plperl.on_init = 'use utf8; use re; package utf8; require "utf8_heavy.pl";'

## end of config

Sorry for my eng :)



--
Adrian Klaver
adrian.kla...@aklaver.com


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