Code to configure SLH size for ZSS to handle file size greater than 6mb

[Gautham-coder]

Describe the bug
Abend occurs when trying to upload dataset with size greater than 6MB, the below messages can be seen in the log.

SLH at 0x3FF90A50 cannot allocate above block size 16 > 0 mxbl 2 bkct 2 bksz 65536
httpserver: ABEND 0C4-04 averted when handling datasetContents

This issue is resolved by increasing the blocks for the heap i.e heap size, that is being used by the http web server. We will be giving this as configurable option, with default value as 1024(also maximum value) and 100 as minimum value.

Steps to Reproduce

1. Upload dataset of size greater than 6MB
2. Check the ZSS logs

Expected behavior
It should be able to upload successfully.

Describe your environment

• Zowe version number: 2.14
• Install method: Pax
• Operating system: z/OS

[Gautham-coder]

Resolved.