Skip to main content

Insert code snippets in Blogger using Prettyfy

If you want to insert code snippets with syntax-highlighting in your blogs on, then you can use google-code-prettify.
There are other syntax highlighting solutions out there, but this allows to do this very simply.
The steps are:
  1. Click on "Theme" (in LHS of blogger home page) or "Design" (in upper RHS corner).
  2. Click on "Edit HTML" button.
  3. Search for <head> tag in the html.
  4. Insert following line after meta tags in head tag:
    <script src=';lang=yaml&amp;lang=bash&amp;lang=xml&amp;lang=sql&amp;skin=sons-of-obsidian' type='text/javascript'></script>
    For me it is just before <title> tag.
  5. Add onload property to <body> tag:
    <body class='container' onload='prettyPrint()'>
  6. Here I have used "Sons-Of-Obsidian" style, you can use any of the available themes.
  7. Save the template.
  8. Now, in your Blog posts, whenever you want to insert code snippets, add the prettyprint class to your pre or code tags:
    <pre class="prettyprint linenums">
        var s:String = "Hello, World!";
  9. This will be rendered in your blog post as:
    var s:String = "Hello, World!";
For more details on using the Prettify, check-out its README.


Popular posts from this blog

ElasticSearch max file descriptors too low error

ElasticSearch 5.x requires a minimum of Max file descriptors 65536 and Max virtual memory areas 262144.
It throws an error on start-up if these are set to very low value.
ERROR: bootstrap checks failed max file descriptors [16384] for elasticsearch process is too low, increase to at least [65536] max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
Check current values using:
$ cat /proc/sys/fs/file-max 16384 $ cat /proc/sys/vm/max_map_count 65530 $ ulimit -Hn 16384 $ ulimit -Sn 4096
To fix this, following files need to change/add below settings:
Recommended: Add a new file 99-elastic.conf under /etc/security/limits.d with following settings:
elasticsearch - nofile 800000 elasticsearch - nproc 16384 defaultusername - nofile 800000 defaultusername - nproc 16384 Alternatively, edit /etc/sysctl.conf with following settings:
fs.file-max = 800000 vm.max_map_count=300000

Kafka performance tuning

Performance Tuning of Kafka is critical when your cluster grow in size. Below are few points to consider to improve Kafka performance:
Consumer group ID: Never use same exact consumer group ID for dozens of machines consuming from different topics. All of those commits will end up on the same exact partition of __consumer_offsets, hence the same broker, and this might in turn cause performance problems. Choose the consumer group ID to group_id+topic_name.
Skewed: A broker is skewed if its number of partitions is greater that the average of partitions per broker on the given topic. Example: 2 brokers share 4 partitions, if one of them has 3 partitions, it is skewed (3 > 2). Try to make sure that none of the brokers is skewed.
Spread: Brokers spread is the percentage of brokers in the cluster that has partitions for the given topic. Example: 3 brokers share a topic that has 2 partitions, so 66% of the brokers have partitions for this topic. Try to achieve 100% broker spread.
Leader skew…

Procedure for name and date of birth change (Pune)

For change of name, the form (scribd) is available free of cost at Government Book Depot (Shaskiya Granthagar), which is located near Collector’s office, next to Saint Helena's School. The postal address is:
Government Photozinco Press Premises and Book Depot,
5, Photozinco Press Road, Pune, MH, 411001.
Wikimapia link

Charges for name or date of birth change, in the Maharashtra Government Gazette:
INR 120.00 per insertion (for two copies of the Gazette)
For backward class applicants: INR 60.00
Charges for extra copy of the Gazette: INR 15.00 per copy (two copies are enough, so you may not want to pay extra for extra copies).

Backward class applicants are required to submit a xerox of caste certificate of old name as issued by the Collector of the District concerned.

Once the form is duly submitted, it normally takes 10 to 15 days for publication of advertisement in the Maharashtra Government Gazette. The Gazette copy reaches to the address filled in the form within next 7 to 15 day…