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local vshard = require('vshard')
local log = require('log')
-- Bootstrap the vshard router.
while true do
local ok, err = vshard.router.bootstrap({
if_not_bootstrapped = true,
})
if ok then
break
end
log.info(('Router bootstrap error: %s'):format(err))
end
-- functions for filer_metadata space
local filer_metadata = {
delete_by_directory_idx = function(directory)
-- find all storages
local storages = require('vshard').router.routeall()
-- on each storage
for _, storage in pairs(storages) do
-- call local function
local result, err = storage:callrw('filer_metadata.delete_by_directory_idx', { directory })
-- check for error
if err then
error("Failed to call function on storage: " .. tostring(err))
end
end
-- return
return true
end,
find_by_directory_idx_and_name = function(dirPath, startFileName, includeStartFile, limit)
-- init results
local results = {}
-- find all storages
local storages = require('vshard').router.routeall()
-- on each storage
for _, storage in pairs(storages) do
-- call local function
local result, err = storage:callro('filer_metadata.find_by_directory_idx_and_name', {
dirPath,
startFileName,
includeStartFile,
limit
})
-- check for error
if err then
error("Failed to call function on storage: " .. tostring(err))
end
-- add to results
for _, tuple in ipairs(result) do
table.insert(results, tuple)
end
end
-- sort
table.sort(results, function(a, b) return a[3] < b[3] end)
-- apply limit
if #results > limit then
local limitedResults = {}
for i = 1, limit do
table.insert(limitedResults, results[i])
end
results = limitedResults
end
-- return
return results
end,
}
rawset(_G, 'filer_metadata', filer_metadata)
-- register functions for filer_metadata space, set grants
for name, _ in pairs(filer_metadata) do
box.schema.func.create('filer_metadata.' .. name, { if_not_exists = true })
box.schema.user.grant('app', 'execute', 'function', 'filer_metadata.' .. name, { if_not_exists = true })
box.schema.user.grant('client', 'execute', 'function', 'filer_metadata.' .. name, { if_not_exists = true })
end
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