I’ve noticed that process SpokesUpdateService promoted to the top of my Memory usage list with 2.8 GB RAM used! It turned out to be part of PlantronicsHub software. I will disable to for a while an see how it will behave.
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bash-4.4$ sudo launchctl remove com.PlantronicsUpdateService bash-4.4$ |
Note: this step needs to be repeated after every PlantronicsHub upgrade.
It’s been a while since I’ve built my current home lab. It’s based on Lenovo M910t. In general, I’m quite happy but it’s lacking expansion flexibility.
So I’m looking for a replacement. Below my notes from research and calculations of total cost.
Cost estimation.
| Component | Description | Price [PLN] |
|---|---|---|
| Total [PLN] / [USD] | 7307 [PLN] 1964 [USD] |
|
| Case | - Fractal Design Define R5 👍 - be quiet! Silent Base 800 - Phanteks Enthoo Pro | 439 |
| CPU | AMD Ryzen Threadripper 1950X | 3365 |
| Motherboard | MSI X399 SLI PLUS | 1290 |
| RAM | - 48GB from old PC - 16GB - Crucial 2400 Total: 64 GB (with option for expansion up to 128 GB) | 630 |
| PSU | SeaSonic Focus Plus Platinum 650W (SSR-650PX) | 478 |
| HDD | PC - 2x 2TB from the old (ZFS root, RAID1) - 1x 4TB from the old + 2x 4TB new (ZFS storage1, RAID5) Total: 2+8 = 10 GB HDD On-demand backups - 1x 2TB from the old (backup, via old USB dock) | 880 |
| SSD | - 256GB from the old (zfs storage2-ssd) | 0 |
| M.2 | - 256GB from the old (ZFS cache) | 0 |
| CPU Cooler | - Noctua NH-U12S TR4-SP3 - Arcetic Freezer 33 TR 👍 | 170 |
| Video card | Used one from ebay or Allegro | 35 |
| Delivery | 20 |
Tech It Out was kind enough to provide this response and the photo on the MoBo I’m interested (MSI X399):
And how does it look on the picture:
After deeper deliberations (it’s hell lot of money! And I’m completely self-funded… Also Threadripper 2 is about to be released on August) I decided:
Regardless of all, this was quite interesting exercise!
My current home server which I use many for virtualisation, serving also some net services is reaching memory and disk-space limits. I named this server Wieloryb which in Polish means The Whale.
So far I have:
For greater flexibility and separation between different tasks I decided to use Proxmox as virtualisation manager. No issues with that: it does what it should, small issues can be justified by a very attractive price (0 USD…).
Another embarrassing problem with my MBP: when scrolling in e.g. Chrome, Safari or actually – any other window, there is annoying lag. When you scroll continuously, it’s more or less fine, but when you pause to read and then want to scroll, it stutters.
After a bit checking here and there, it turned out that if I increased keyboard backlight timeout from 5 seconds to 1 minute, the problem has been worked around!
Well done Apple, well done‼
This Quick Look plugin allows you to decompile Java class and look at the content.
When trying to add a custom resource, no matter what, I always got a wrong constant name error, for example:
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resolving cookbooks for run list: ["01_test-cookbook"] Synchronizing Cookbooks: - test-cookbook (0.1.0) Installing Cookbook Gems: Compiling Cookbooks... ================================================================================ Recipe Compile Error in /home/jhartman/.chef/local-mode-cache/cache/cookbooks/test-cookbook/resources/append_line.rb ================================================================================ NameError --------- wrong constant name 01TestCookbookAppendLine Platform: --------- x86_64-linux-gnu |
It turned out to be an issue with my cookbook name: it’s not allowed to have a cookbook name starting with a number (as later, it’s converted into a class name).
So my cookbooks as below are causing the problems:
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drwxrwxr-x 8 jhartman jhartman 15 Apr 22 21:45 1_PreRequisites drwxrwxr-x 7 jhartman jhartman 14 Apr 22 23:38 2_OracleDB drwxrwxr-x 9 jhartman jhartman 16 May 3 18:12 3_NCC drwxrwxr-x 6 jhartman jhartman 13 Apr 22 22:22 4_PostInstallation |
They should be renamed into something else, for example:
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drwxrwxr-x 8 jhartman jhartman 15 Apr 22 21:45 A_PreRequisites drwxrwxr-x 7 jhartman jhartman 14 Apr 22 23:38 B_OracleDB drwxrwxr-x 9 jhartman jhartman 16 May 3 18:12 C_NCC drwxrwxr-x 6 jhartman jhartman 13 Apr 22 22:22 D_PostInstallation |
Note, inside the files, there are references to the names, so you may need to update them accordingly, for example using:
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$ find . -type f -print0 | xargs -0 sed -i 's/2_OracleDB/B_OracleDB/g' |
After this, no more strange errors after adding resources.
PS: When you work on MacOS, you may face another problem with your resources: MacOS trash files (._* or .DS_Store) are causing another (similarly looking) error. Take a look at this web page.
MacOS tends to trash mounted disks with number of useless hidden files (e.g. ._* or .DS_Store ). There were number of recipes in the Internet, some of them were working at some of time but are not anymore.
Below notes from my fights (at a moment of writing, on MacOS High Sierra 10.13.4 (17E199).
I used to apply a find . -name ... -print0 | xargs rm -0 combo but found that there is an built-in command to deal with these files:
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$ dot_clean . |
From the man:
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NAME dot_clean -- Merge ._* files with corresponding native files. SYNOPSIS dot_clean [-fmnsv] [--keep=[mostrecent|dotbar|native]] [dir ...] DESCRIPTION For each dir, dot_clean recursively merges all ._* files with their corresponding native files according to the rules specified with the given arguments. By default, if there is an attribute on the native file that is also present in the ._ file, the most recent attribute will be used. |
NOTE: None of these solutions worked for me!
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$ defaults write com.apple.desktopservices DSDontWriteNetworkStores -bool true $ killall Finder |
As I wrote, this didn’t work at all to me.
It actually turned the only working solution for me. Just add to the share configuration section a veto file parameter, e.g.:
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$ sudo vi /etc/samba/smb.conf |
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[jhartman] path = /home/jhartman ..... veto files = /._*/.DS_Store/ |
And restart:
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$ sudo service smbd restart |
Note, after applying this change you will not be able anymore to use dot_clean command from your Mac as any requests towards these files (including deletion) will be silently ignored by your SMB server hence files will remain untouched!
When trying to install Oracle 12c 32-bit Client (12.1 or 12.2) on Oracle Linux 7.3 or 7.5, it throws error during linking static libraries:
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INFO: Start output from spawned process: INFO: ---------------------------------- INFO: INFO: /u01/app/oracle/product/12.2.0_client32/bin/genclntsh INFO: /bin/ld: /u01/app/oracle/product/12.2.0_client32/lib/libnls12.a(lxecg2e.o): direct GOT relocation R_386_GOT32 against `lxecerr' without base register can not be used when making a shared object /bin/ld: final link failed: Bad value INFO: collect2: error: ld returned 1 exit status INFO: genclntsh: Failed to link libclntshcore.so.12.1 INFO: make: *** [client_sharedlib] Error 1 |
Not very specific, I found only one reference in Oracle KM Doc ID 2246237.1.
Rootcause and resolution in there was:
REASON
SLES 12 SP2 ships with binutils 2.26 which breaks compatibility for certain shared library links.
SOLUTION
01) Update binutils package to version binutils-2.26.1-9.15.1 or later.
But in fact, I do have in my server binutils-2.27-27.base.el7.x86_64 .
Workaround is to downgrade the binutils:
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jhartman@sms.jhartman.pl:/home/jhartman$ sudo yum downgrade binutils* Loaded plugins: ulninfo Resolving Dependencies --> Running transaction check ---> Package binutils.x86_64 0:2.25.1-32.base.el7_4.2 will be a downgrade ---> Package binutils.x86_64 0:2.27-27.base.el7 will be erased ---> Package binutils-devel.x86_64 0:2.25.1-32.base.el7_4.2 will be a downgrade ---> Package binutils-devel.x86_64 0:2.27-27.base.el7 will be erased --> Finished Dependency Resolution Dependencies Resolved ================================================================================================================================================================================================================================================================================ Package Arch Version Repository Size ================================================================================================================================================================================================================================================================================ Downgrading: binutils x86_64 2.25.1-32.base.el7_4.2 ol7_latest 5.4 M binutils-devel x86_64 2.25.1-32.base.el7_4.2 ol7_latest 845 k Transaction Summary |
After this, the libs can be compiled and linked:
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oracle$ export ORACLE_HOME=/u01/app/oracle/product/12.2.0_client32 oracle$ /u01/app/oracle/product/12.2.0_client32/bin/genclntsh oracle$ |
I do believe that after finishing the installation, binutils can be upgraded again to the latest version (but not forget about this problem in case of installing the RSU).
PS: I’ve raised SR 3-17356002141 : Error when installing Oracle 32-bit client (direct GOT relocation R_386_GOT32 against `ipp_zcalloc’)
Just to inform (in case when Google stop working one day 😃) that my public projects are stored on GitHub https://github.com/jaroslawhartman
When you add some timezones to your Apple Calendar, it’s somehow difficult to remove them and you end up with a list which you perhaps don’t need anymore:
How to remove them? Rather easy, but we need a plist editor (easiest way to get it is to install XCode). Once we have it, just type in your terminal
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$ open ~/Library/Preferences/com.apple.iCal.plist |
Find attribute RecentlyUsedTimeZones, unfold it and delete unwanted items:
