Hi RomaNNN
Your machine is too weak
It's not a reason. I want to understand which component is doing something wrong and what can I configure to solve the issue.
Hi RomaNNN
Your machine is too weak
It's not a reason. I want to understand which component is doing something wrong and what can I configure to solve the issue.
Give Us the output of
dpkg -l | grep openm
We need to know which plugin you have installed. In general every component does not need huge resources. The WebUI has absolute nothing to do with this. The problem is something with nginx or php-fpm. Please have a look into the syslog and look for OOP's or other anomalies.
There are no plugins installed.
Lines in /var/log/syslog when problem is happening:
Jun 7 16:20:49 dns325 monit[1943]: 'dns325' loadavg(1min) of 4.3 matches resource limit [loadavg(1min)>2.0]
Jun 7 16:21:23 dns325 monit[1943]: 'dns325' loadavg(5min) of 3.8 matches resource limit [loadavg(5min)>1.0]
Jun 7 16:21:23 dns325 monit[1943]: 'dns325' loadavg(1min) of 3.9 matches resource limit [loadavg(1min)>2.0]
Jun 7 16:21:59 dns325 monit[1943]: 'dns325' loadavg(5min) of 3.8 matches resource limit [loadavg(5min)>1.0]
Jun 7 16:21:59 dns325 rsyslogd-2007: action 'action 20' suspended, next retry is Wed Jun 7 16:23:29 2017 [try http://www.rsyslog.com/e/20
07 ]
Jun 7 16:21:59 dns325 monit[1943]: 'dns325' loadavg(1min) of 4.2 matches resource limit [loadavg(1min)>2.0]
Jun 7 16:22:36 dns325 monit[1943]: 'dns325' loadavg(5min) of 4.3 matches resource limit [loadavg(5min)>1.0]
Jun 7 16:22:36 dns325 monit[1943]: 'dns325' loadavg(1min) of 6.0 matches resource limit [loadavg(1min)>2.0]
Jun 7 16:23:15 dns325 monit[1943]: 'dns325' loadavg(5min) of 4.9 matches resource limit [loadavg(5min)>1.0]
Jun 7 16:23:15 dns325 monit[1943]: 'dns325' loadavg(1min) of 7.6 matches resource limit [loadavg(1min)>2.0]
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How much cores does the CPU have? The load is very high, so i think this is the reason.
Yes, the CPU have 1 core. But why is it a problem? Which component requires rapidly performing and can't wait?
Can I detect the problem without guessing? Something pushes JS exception, I guess. What is it?
Is there a way to check the condition that is not satisfied and results in the "communication failure" exception?
Strange things with rows and and the progress bar in the "Used" column in "File Systems" tab.
In gray theme: Progress bar stretches row. Text content in all cells is not centered.
in triton and gray theme: When the progress bar is shown, clicking on a cell results in a border with wrong bottom position.
and (just a suggestion ) try it with Kernel 4.9
There is no difference in behavior between 4.9 and 4.10.
And now? Works Better with the Swap partition ?
No, it doesn't work better. See picture in post #7, processes and system together share less than 245 MB available RAM.
The CPU is not the problem but 256 MB RAM is too little.
Ok, I'll create swap file or swap partition on HDD.
UPD: I think it's not a reason.
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"I think it occurs because of CPU overloading, but I don't sure."
Ahm ... yes .. i´m Shure
Why you need 5 Tabs in the Browser with the same IP (in this case Openmediavault Web )
and (just a suggestion ) try it with Kernel 4.9
I opened it just to show simple steps to reproduce. It also occurs with one tab and one service task, for example rsync (second video in 1 post).
Ok, I'll try 4.9. Why do you recommend it instead of 4.10?
sorry, wrong link - https://habrahabr.ru/post/327076/
smartmontools package.
# smartctl -A /dev/sda
smartctl 6.4 2014-10-07 r4002 [armv5tel-linux-4.10.0] (local build)
Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 1
3 Spin_Up_Time 0x0027 253 253 021 Pre-fail Always - 7041
4 Start_Stop_Count 0x0032 093 093 000 Old_age Always - 7393
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0
7 Seek_Error_Rate 0x002e 100 253 000 Old_age Always - 0
9 Power_On_Hours 0x0032 059 059 000 Old_age Always - 30337
10 Spin_Retry_Count 0x0032 100 100 000 Old_age Always - 0
11 Calibration_Retry_Count 0x0032 100 100 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 427
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 367
193 Load_Cycle_Count 0x0032 198 198 000 Old_age Always - 7025
194 Temperature_Celsius 0x0022 104 090 000 Old_age Always - 48
196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 200 200 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x0008 200 200 000 Old_age Offline - 0
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Hello.
I've installed OMV 3 on my D-Link DNS-325 - https://habrahabr.ru/post/329596/ (rus)
But now I have trouble with web-panel. I think it occurs because of CPU overloading, but I don't sure. Sometimes web-panel pulls "communication failure" alerts.
Simple way to reproduce is open 2 or 3 web-panel tabs simultaneously:
Or run rsync and try to open HDD tab:
Any ideas?