Avi asked not to use an atomic integer to produce ids for repair
operations. The existing code had another bug: It could return some
id immediately, but because our start_repair() hasn't started running
code on cpu 0 yet, the new id was not yet registered and if we were to
call repair_get_status() for this id too quickly, it could fail.
The solution for both issues is that start_repair() should return not
an int, but a future<int>: the integer id is incremented on cpu 0 (so
no atomics are needed), and then returned and the future is fulfilled.
Note that the future returned by start_repair() does not wait for the
repair to be over - just for its index to be registered and be usable
to a call to repair_get_status().
Signed-off-by: Nadav Har'El <nyh@cloudius-systems.com>
"This series address issues #59 and #23.
It moves the API configuration from the command line argument to the general
config, it also move the api-doc directory to be configurable instead of hard
coded."
Fixes#59Fixes#23
This patch addresses issu #155, it adds a helper function that if a
keyspace does not exists it throw a bad parameter exception.
Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
$ curl -X POST --header "Content-Type: application/json" --header "Accept:
application/json" "http://127.0.0.1:10000/storage_service/gossiping"
btw, the description looks incorrect:
POST /storage_service/gossiping
allows a user to recover a forcibly 'killed' node
This adds the ownwership method implementation to the storage_service
API. After the patch the following url will be supported:
GET /storage_service/ownership/{keyspace}
GET /storage_service/ownership/
Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
This adds the API for get_effective_ownership and
get_ownership in storage_service.
It is based on the StorageServiceMBean definition.
Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
This adds the column family mean row size in the per column family and
the total version. I uses the ratio_helper class to calculate the mean
over all the shrades.
This distinguish between the async repair that starts the repair, that
will now be a POST request and the method that check on the command
progress that will now be a GET command.
After the change each operation would get the parameters that it needs.
The GET will return an enum based on the repair_status.
Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
This patch uses the now existing infrastructure to expose statistics about the bloom
filters hit/miss rates.
Signed-off-by: Glauber Costa <glommer@cloudius-systems.com>
Adding to API function to return count of sstables in L0 if leveled
compaction strategy is enabled, 0 otherwise. Currently, we don't
support leveled compaction strategy, so function to return count of
sstables in L0 always return zero.
Signed-off-by: Raphael S. Carvalho <raphaelsc@cloudius-systems.com>
"This series expose statistics from the row_cache in the cache_service API.
After this series the following methods will be available:
get_row_hits
get_row_requests
get_row_hit_rate
get_row_size
get_row_entries"
This adds a stub implementation for the storge service metrics. The
implementation returns the currect type with a stub value.
After this patch the following url will be available:
/storage_service/metrics/load
/storage_service/metrics/exceptions
/storage_service/metrics/hints_in_progress
/storage_service/metrics/total_hints
Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
This adds the storage service metrics that is based on the
StorageServiceMetrics class.
The following command where added:
get_metrics_load
get_exceptions
get_total_hints_in_progress
get_total_hints
Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
This adds the implementation for get_row_hits, get_row_requests,
get_row_hit_rate, row_enries, row_size and row_capacity
The implementation is based on the column-family map reduce
Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
Some of the APIs need to return a ratio.
The ratio_holder struct is a helper class that counts the total and the
sub totat, it implements the json::jsonable virtual class with a
to_json method that return the ratio.
The main usage of the sturct is with a map-reduce method.
Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
"This adds the get_snitch_name and update_snitch functionality to the API. After
this series it would be possible to return the snitch name and to update the
snitch."
