Extend slh max size to avoid 0C4 ABENDs - Githubissues

zowe / zss

Zowe System Services Server for enabling low-level microservices

Eclipse Public License 2.0

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Extend slh max size to avoid 0C4 ABENDs #669

Closed Pamazok closed 10 months ago

Pamazok commented 10 months ago

Proposed changes

For some "content" the allocated SLH size (technically the number of blocks) is not enough, so ZSS thread is ABENDed with 0C4-4 like below:

SLH at 0x3FF90A50 cannot allocate above block size 16 > 0 mxbl 2 bkct 2 bksz 65535
httpserver: ABEND 0C4-04 averted when handling datasetContents

Technically we increased the number of max blocks, so we do not request a 2 times bigger buffer. But it's enough for some cases.

Type of change

[X] Bug fix (non-breaking change which fixes an issue)

PR Checklist

[X] If the changes in this PR are meant for the next release / mainline, this PR targets the "staging" branch.
[X] My code follows the style guidelines of this project (see: Contributing guideline)

Testing

The bug was found by the "OMEGAMON for Storage" team and we verified that the issue solved with these changes.