raviranjanjha commented on PR #4257:
URL: https://github.com/apache/solr/pull/4257#issuecomment-4170036886
Hey Eric,
Not sure why originally committed heap was chosen to compute the heap used
percentage, but surely its been around for quite some time.
As I explained in ticket too, unless we move to using max heap metric, it
might show a warning in red for even very low heap use just because the
solr never requested high heap from OS (committed heap).
- Committed heap is the total amount of memory currently reserved from
the operating system for the Java process.
- Reference:
https://stackoverflow.com/questions/41468670/difference-in-used-committed-and-max-heap-memory#:~:text=committed:%20amount%20of%20memory%20that,for%20the%20java%20process%20anyway
.
On Wed, 1 Apr, 2026, 4:25 pm Eric Pugh, ***@***.***> wrote:
> *epugh* left a comment (apache/solr#4257)
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> Change Lgtm but could you add some context on why metric change? Sort of
> curious why we chose the wrong value... any articles or links on how to
> calculate this value I can read up on.
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