es index management

1. index creation

1. PUT index
2. {
3. "settings":{
4. "number_of_shards":3,
5. "number_of_replicas":1
6. },
7. "mappings":{
8. "properties":{
9. "title":{
10. "type":"text",
11. "analyzer":"ik_max_words",
12. "search_analyzer":"ik_smart"
13. },
14. "tag":{
15. "type":"keyword"
16. }
17. }
18. }
19. }

2. Add the field

1. PUT index/_mapping
2. {
3. "properties":{
4. "Index": {
5. "type":"date",
6. "format":"yyyy-MM-dd HH:mm:ss"
7. }
8. }
9. }

3. Delete Index

1. DELETE index

4. The opening / closing Index

4.1 Opening index

1. POST index/_open

Index closed 4.2

1. POST index/_close

5. rebuild the index

1. POST /_reindex
2. {
3. "source":{
4. "index":"sourceIndexName",
5. "query":{
6.  
7. },
8. "sort":{
9. "fieldName":"asc/desc"
10. },
11. "size":5000,
12. "_source":[
13. "fieldName1",
14. "fieldName2",
15. "fieldName3",
16. ]
17. },
18. "dest":{
19. "index":"destIndexName",
20. "version_type":"internal(default)/external",
21. "op_type":"create"
22. }
23. }

Description:

• version_type
• internal: represents the migration of all data, and complete coverage of the conflict document (even if the target version of the new document in the source document index).
• external: represents the migration of all data, documents and more old and new versions conflict.
• op_type:
• create: document represents only create target index does not exist.

6. Alias ​​Management

6.1 add an alias

1. POST /_aliases
2. {
3. "actions":[
4. {
5. "add":{
6. "index":"indexName1",
7. "alias":"aliasName"
8. }
9. },
10. {
11. "add":{
12. "index":"indexName2",
13. "alias":"aliasName"
14. }
15. }
16. ]
17. }

6.2 Delete alias

1. POST /_aliases
2. {
3. "actions":[
4. {
5. "remove":{
6. "index":"indexName",
7. "alias":"aliasName"
8. }
9. }
10. ]
11. }

6.3 Renaming

1. POST /_aliases
2. {
3. "actions":[
4. {
5. "remove":{
6. "index":"indexName",
7. "alias":"aliasName1"
8. }
9. },
10. {
11. "add":{
12. "index":"indexName",
13. "alias":"aliasName2"
14. }
15. }
16. ]
17. }

7. merge index

1. POST index/_forcemerge?max_num_segments=1

8. narrow index

8.1 first index is set to read-only

1. PUT source_index/_setting
2. {
3. "settings":{
4. "index.routing.allocation.require._name":"node-1",
5. "index.blocks.write":true
6. }
7. }

8.2 execution shrink

1. POST source_index/_shrink/target_index
2. {
3. "settings":{
4. "index.number_of_replicas":1,
5. "index.number_of_shards":1,
6. "index.codec":"best_compression"
7. }
8. }

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