Mercurial > hg > orthanc-databases
annotate TODO @ 424:95c413106a66 improve-delete
Introduced a procedure to delete resources (to be tested)
| author | Alain Mazy <am@osimis.io> |
|---|---|
| date | Wed, 13 Sep 2023 13:32:54 +0200 |
| parents | c1fe28de1bf6 |
| children | f4244c7e2725 |
| rev | line source |
|---|---|
| 196 | 1 |
| 2 ============================== | |
| 3 == Orthanc database plugins == | |
| 4 ============================== | |
| 5 | |
| 6 ----------------------- | |
| 7 Common - Database index | |
| 8 ----------------------- | |
| 9 | |
| 258 | 10 * Performance of joins in LookupResources: Create cached statement for |
| 11 LookupResources, that are grouped to search up to, say, 10 tags, | |
| 12 instead of recompiling for each request | |
| 371 | 13 * Do not log "DatabaseCannotSerialize" errors in the plugin but only |
| 14 in Orthanc after all retries have been made. | |
|
424
95c413106a66
Introduced a procedure to delete resources (to be tested)
Alain Mazy <am@osimis.io>
parents:
371
diff
changeset
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15 * Try to avoid the use of temporary tables: |
|
95c413106a66
Introduced a procedure to delete resources (to be tested)
Alain Mazy <am@osimis.io>
parents:
371
diff
changeset
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16 https://discourse.orthanc-server.org/t/image-insert-are-too-slow-databse-performance-too-poor/3820 |
|
95c413106a66
Introduced a procedure to delete resources (to be tested)
Alain Mazy <am@osimis.io>
parents:
371
diff
changeset
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17 |
| 196 | 18 |
| 19 --------------------- | |
| 20 Common - Storage area | |
| 21 --------------------- | |
| 22 | |
| 23 * Implement the "StoreDicom" option from the default filesystem | |
| 24 storage area to run MySQL/PostgreSQL storage in index-only mode: | |
| 25 https://book.orthanc-server.com/contributing.html | |
| 26 | |
| 259 | 27 * Performance: Add a pool of connections to PostgreSQL/MySQL, as |
| 28 already done in the database index plugins | |
| 29 | |
| 360 | 30 ---------- |
| 31 PostgreSQL | |
| 32 ---------- | |
| 33 | |
| 34 * reported issue to validate: uploading lots of files through HTTP with: | |
| 35 - 1 client and IndexConnectionsCount==1 took 100s | |
| 36 - 2 client and IndexConnectionsCount==2 took 600s (lots of transaction replayed) | |
| 37 | |
| 365 | 38 * Seems Orthanc might deadlock when there are plenty of conflicting transactions: |
| 39 https://groups.google.com/g/orthanc-users/c/xQelEcKqL9U/m/HsvxwlkvAQAJ | |
| 40 https://groups.google.com/g/orthanc-users/c/1bkClfZ0KBA/m/s4AlwVh3CQAJ | |
| 196 | 41 |
| 42 ----- | |
| 43 MySQL | |
| 44 ----- | |
| 45 | |
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266
cc7af42d4f23
Store revisions for metadata and attachments in PostgreSQL
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
259
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46 * Store revisions for metadata and attachments in MySQL (this is |
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cc7af42d4f23
Store revisions for metadata and attachments in PostgreSQL
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
259
diff
changeset
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47 already implemented in PostgreSQL) |
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cc7af42d4f23
Store revisions for metadata and attachments in PostgreSQL
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
259
diff
changeset
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48 |
| 196 | 49 * MySQL performance => implement GlobalProperty_GetTotalSizeIsFast: |
| 50 https://groups.google.com/d/msg/orthanc-users/kSR4a110zDo/D7e4ITR8BwAJ | |
| 258 | 51 |
| 52 * Add index to speed up wildcard search, as already done in PostgreSQL: | |
| 53 | |
| 54 - https://dev.mysql.com/doc/refman/5.5/en/fulltext-search.html + | |
| 55 ALTER TABLE table ADD FULLTEXT index_name(column1); | |
| 56 | |
| 57 - https://dev.mysql.com/doc/refman/8.0/en/index-btree-hash.html |