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minio/docs/caching/README.md

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XL/PutObject: Add single putObject and multipart caching. (#2115) - Additionally adds test cases as well for object cache. - Adds auto-expiry with expiration and cleanup time interval. Fixes #2080 Fixes #2091
8 years ago
## Object caching
Object caching by turned on by default with following settings
Reduce number of envs and options from command line. (#3230) Ref #3229 After review with @abperiasamy we decided to remove all the unnecessary options - MINIO_BROWSER (Implemented as a security feature but now deemed obsolete since even if blocking access to MINIO_BROWSER, s3 API port is open) - MINIO_CACHE_EXPIRY (Defaults to 72h) - MINIO_MAXCONN (No one used this option and we don't test this) - MINIO_ENABLE_FSMETA (Enable FSMETA all the time) Remove --ignore-disks option - this option was implemented when XL layer would initialize the backend disks and heal them automatically to disallow XL accidentally using the root partition itself this option was introduced. This behavior has been changed XL no longer automatically initializes `format.json` a HEAL is controlled activity, so ignore-disks is not useful anymore. This change also addresses the problems of our documentation going forward and keeps things simple. This patch brings in reduction of options and defaulting them to a valid known inputs. This patch also serves as a guideline of limiting many ways to do the same thing.
8 years ago
- Default cache size 8GB. Cache size also automatically picks
a lower value if your local memory size is lower than 8GB.
XL/PutObject: Add single putObject and multipart caching. (#2115) - Additionally adds test cases as well for object cache. - Adds auto-expiry with expiration and cleanup time interval. Fixes #2080 Fixes #2091
8 years ago
Reduce number of envs and options from command line. (#3230) Ref #3229 After review with @abperiasamy we decided to remove all the unnecessary options - MINIO_BROWSER (Implemented as a security feature but now deemed obsolete since even if blocking access to MINIO_BROWSER, s3 API port is open) - MINIO_CACHE_EXPIRY (Defaults to 72h) - MINIO_MAXCONN (No one used this option and we don't test this) - MINIO_ENABLE_FSMETA (Enable FSMETA all the time) Remove --ignore-disks option - this option was implemented when XL layer would initialize the backend disks and heal them automatically to disallow XL accidentally using the root partition itself this option was introduced. This behavior has been changed XL no longer automatically initializes `format.json` a HEAL is controlled activity, so ignore-disks is not useful anymore. This change also addresses the problems of our documentation going forward and keeps things simple. This patch brings in reduction of options and defaulting them to a valid known inputs. This patch also serves as a guideline of limiting many ways to do the same thing.
8 years ago
- Default expiration of entries happensat 72 hours,
this option cannot be changed.
XL/PutObject: Add single putObject and multipart caching. (#2115) - Additionally adds test cases as well for object cache. - Adds auto-expiry with expiration and cleanup time interval. Fixes #2080 Fixes #2091
8 years ago
Reduce number of envs and options from command line. (#3230) Ref #3229 After review with @abperiasamy we decided to remove all the unnecessary options - MINIO_BROWSER (Implemented as a security feature but now deemed obsolete since even if blocking access to MINIO_BROWSER, s3 API port is open) - MINIO_CACHE_EXPIRY (Defaults to 72h) - MINIO_MAXCONN (No one used this option and we don't test this) - MINIO_ENABLE_FSMETA (Enable FSMETA all the time) Remove --ignore-disks option - this option was implemented when XL layer would initialize the backend disks and heal them automatically to disallow XL accidentally using the root partition itself this option was introduced. This behavior has been changed XL no longer automatically initializes `format.json` a HEAL is controlled activity, so ignore-disks is not useful anymore. This change also addresses the problems of our documentation going forward and keeps things simple. This patch brings in reduction of options and defaulting them to a valid known inputs. This patch also serves as a guideline of limiting many ways to do the same thing.
8 years ago
- Default expiry interval is 1/4th of the expiration hours, so
expiration sweep happens across the cache every 1/4th the time
duration of the set entry expiration duration.
XL/PutObject: Add single putObject and multipart caching. (#2115) - Additionally adds test cases as well for object cache. - Adds auto-expiry with expiration and cleanup time interval. Fixes #2080 Fixes #2091
8 years ago
### Behavior
Reduce number of envs and options from command line. (#3230) Ref #3229 After review with @abperiasamy we decided to remove all the unnecessary options - MINIO_BROWSER (Implemented as a security feature but now deemed obsolete since even if blocking access to MINIO_BROWSER, s3 API port is open) - MINIO_CACHE_EXPIRY (Defaults to 72h) - MINIO_MAXCONN (No one used this option and we don't test this) - MINIO_ENABLE_FSMETA (Enable FSMETA all the time) Remove --ignore-disks option - this option was implemented when XL layer would initialize the backend disks and heal them automatically to disallow XL accidentally using the root partition itself this option was introduced. This behavior has been changed XL no longer automatically initializes `format.json` a HEAL is controlled activity, so ignore-disks is not useful anymore. This change also addresses the problems of our documentation going forward and keeps things simple. This patch brings in reduction of options and defaulting them to a valid known inputs. This patch also serves as a guideline of limiting many ways to do the same thing.
8 years ago
Caching happens on both GET and PUT operations.
XL/PutObject: Add single putObject and multipart caching. (#2115) - Additionally adds test cases as well for object cache. - Adds auto-expiry with expiration and cleanup time interval. Fixes #2080 Fixes #2091
8 years ago
Reduce number of envs and options from command line. (#3230) Ref #3229 After review with @abperiasamy we decided to remove all the unnecessary options - MINIO_BROWSER (Implemented as a security feature but now deemed obsolete since even if blocking access to MINIO_BROWSER, s3 API port is open) - MINIO_CACHE_EXPIRY (Defaults to 72h) - MINIO_MAXCONN (No one used this option and we don't test this) - MINIO_ENABLE_FSMETA (Enable FSMETA all the time) Remove --ignore-disks option - this option was implemented when XL layer would initialize the backend disks and heal them automatically to disallow XL accidentally using the root partition itself this option was introduced. This behavior has been changed XL no longer automatically initializes `format.json` a HEAL is controlled activity, so ignore-disks is not useful anymore. This change also addresses the problems of our documentation going forward and keeps things simple. This patch brings in reduction of options and defaulting them to a valid known inputs. This patch also serves as a guideline of limiting many ways to do the same thing.
8 years ago
- GET caches new objects for entries not found in cache.
XL/PutObject: Add single putObject and multipart caching. (#2115) - Additionally adds test cases as well for object cache. - Adds auto-expiry with expiration and cleanup time interval. Fixes #2080 Fixes #2091
8 years ago
- PUT/POST caches all successfully uploaded objects.
Reduce number of envs and options from command line. (#3230) Ref #3229 After review with @abperiasamy we decided to remove all the unnecessary options - MINIO_BROWSER (Implemented as a security feature but now deemed obsolete since even if blocking access to MINIO_BROWSER, s3 API port is open) - MINIO_CACHE_EXPIRY (Defaults to 72h) - MINIO_MAXCONN (No one used this option and we don't test this) - MINIO_ENABLE_FSMETA (Enable FSMETA all the time) Remove --ignore-disks option - this option was implemented when XL layer would initialize the backend disks and heal them automatically to disallow XL accidentally using the root partition itself this option was introduced. This behavior has been changed XL no longer automatically initializes `format.json` a HEAL is controlled activity, so ignore-disks is not useful anymore. This change also addresses the problems of our documentation going forward and keeps things simple. This patch brings in reduction of options and defaulting them to a valid known inputs. This patch also serves as a guideline of limiting many ways to do the same thing.
8 years ago
In all other cases if objects are served from cache.
NOTE:
Cache is always populated upon object is successfully
read from the disk.
XL/PutObject: Add single putObject and multipart caching. (#2115) - Additionally adds test cases as well for object cache. - Adds auto-expiry with expiration and cleanup time interval. Fixes #2080 Fixes #2091
8 years ago
Expiration happens automatically based on the configured
interval as explained above, frequently accessed objects
stay alive for significantly longer time due to the fact
that expiration time is reset for every cache hit.