Index files merged, why?

joko71 — Wed, 21 Dec 2022 09:11:12 GMT

Hi,

using this post as inspiration:
https://hub.alfresco.com/t5/alfresco-content-services-hub/index-merging-performance/ba-p/289578

I changed this entry in repository.properties from 8 to 20:

#lucene.indexer.mergerTargetIndexCount=8
lucene.indexer.mergerTargetIndexCount=20

Index files were as I expected, for a time:

Entry List for d:\Work\Lucene Luke Analysis\lucene-indexes-36-a\workspace\SpacesStore
   Size = 20
	0	 Name=1126c263-34f6-4ac7-9721-a8205feb5ec7 Type=INDEX Status=COMMITTED Docs=1095775 Deletions=0 
	1	 Name=16a3f735-769f-4fef-87d4-cc3b63188145 Type=INDEX Status=COMMITTED Docs=357085 Deletions=0 
	2	 Name=2e94dc74-bed4-48c0-a8bc-fad54c38b893 Type=INDEX Status=COMMITTED Docs=265365 Deletions=0 
	3	 Name=6034e1c0-16ea-49a4-8e8c-d7979d1dc944 Type=INDEX Status=COMMITTED Docs=29033 Deletions=0 
	4	 Name=1d4678f4-dd70-4504-9ee7-f06958126ea8 Type=INDEX Status=COMMITTED Docs=7160 Deletions=0 
	5	 Name=740c2809-4d30-49f0-84ec-33e244975b3b Type=INDEX Status=COMMITTED Docs=6635 Deletions=0 
	6	 Name=c36878fe-432d-45f5-8e79-adbe6a784d0b Type=INDEX Status=COMMITTED Docs=168 Deletions=0 
	7	 Name=605eb197-4b1d-439d-a2e4-ffbde534277a Type=INDEX Status=COMMITTED Docs=110 Deletions=0 
	8	 Name=0fecf742-9d80-42b3-a286-219c26ac0ef8 Type=INDEX Status=COMMITTED Docs=100 Deletions=0 
	9	 Name=5094d06a-a502-4293-a190-4e1499b0989e Type=INDEX Status=COMMITTED Docs=100 Deletions=0 
	10	 Name=6d1f5ffa-ee25-4348-9245-74d1c46acf6b Type=INDEX Status=COMMITTED Docs=100 Deletions=0 
	11	 Name=274de02b-2cca-4cac-97fa-9892dca15cc8 Type=INDEX Status=COMMITTED Docs=100 Deletions=0 
	12	 Name=984f69cd-e7b1-40c7-9282-39836037ad4e Type=INDEX Status=COMMITTED Docs=100 Deletions=0 
	13	 Name=368641bf-f71f-45e9-ad6e-d191fc3f7d97 Type=INDEX Status=COMMITTED Docs=109 Deletions=0 
	14	 Name=cf5785e4-c437-4ded-95c1-37387ea61c9a Type=INDEX Status=COMMITTED Docs=50 Deletions=0 
	15	 Name=dd6e93a1-d388-4424-830b-2f9dd01cb040 Type=INDEX Status=COMMITTED Docs=89 Deletions=0 
	16	 Name=75797aa2-7f90-4230-8f45-e15a5eaf53a8 Type=INDEX Status=COMMITTED Docs=84 Deletions=0 
	17	 Name=f51e9e95-ea2e-4b7b-ae32-3c5b3f9c8f09 Type=INDEX Status=COMMITTED Docs=111 Deletions=0 
	18	 Name=05bb2197-c0dd-407b-b086-91a6bd2ad333 Type=DELTA Status=COMMITTED Docs=60 Deletions=0 
	19	 Name=a65e0091-5871-4c95-a2dd-df3050d03bdb Type=DELTA Status=COMMITTED Docs=14 Deletions=0

Then, suddenly, except the first four, they merged:

Entry List for /var/alfresco/data/lucene-indexes/workspace/SpacesStore
   Size = 7
	0	 Name=1126c263-34f6-4ac7-9721-a8205feb5ec7 Type=INDEX Status=COMMITTED Docs=1095775 Deletions=0 
	1	 Name=16a3f735-769f-4fef-87d4-cc3b63188145 Type=INDEX Status=COMMITTED Docs=357085 Deletions=0 
	2	 Name=2e94dc74-bed4-48c0-a8bc-fad54c38b893 Type=INDEX Status=COMMITTED Docs=265365 Deletions=0 
	3	 Name=6034e1c0-16ea-49a4-8e8c-d7979d1dc944 Type=INDEX Status=COMMITTED Docs=29033 Deletions=0 
	4	 Name=fe176b41-3082-4f9c-ad72-94af6fc4add0 Type=INDEX Status=COMMITTED Docs=15016 Deletions=0 
	5	 Name=05bb2197-c0dd-407b-b086-91a6bd2ad333 Type=DELTA Status=COMMITTED Docs=60 Deletions=0 
	6	 Name=a65e0091-5871-4c95-a2dd-df3050d03bdb Type=DELTA Status=COMMITTED Docs=14 Deletions=0

All other parameters in repository. properties are default.

Why did they merge?

topic Index files merged, why? in Alfresco Forum

Index files merged, why?