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69 lines
1.3 KiB
C++
69 lines
1.3 KiB
C++
#include <DB/Storages/MergeTree/RemoteDiskSpaceMonitor.h>
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#include <DB/Storages/MergeTree/DiskSpaceMonitor.h>
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#include <DB/Interpreters/Context.h>
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#include <DB/IO/ReadBufferFromHTTP.h>
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#include <DB/IO/WriteHelpers.h>
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#include <DB/IO/ReadHelpers.h>
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int ABORTED;
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}
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namespace RemoteDiskSpaceMonitor
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{
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namespace
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{
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std::string getEndpointId(const std::string & node_id)
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{
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return "RemoteDiskSpaceMonitor:" + node_id;
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}
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}
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Service::Service(const Context & context_)
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: context{context_}
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{
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}
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std::string Service::getId(const std::string & node_id) const
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{
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return getEndpointId(node_id);
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}
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void Service::processQuery(const Poco::Net::HTMLForm & params, ReadBuffer & body, WriteBuffer & out)
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{
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if (is_cancelled)
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throw Exception{"RemoteDiskSpaceMonitor service terminated", ErrorCodes::ABORTED};
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size_t free_space = DiskSpaceMonitor::getUnreservedFreeSpace(context.getPath());
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writeBinary(free_space, out);
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out.next();
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}
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size_t Client::getFreeSpace(const InterserverIOEndpointLocation & location) const
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{
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ReadBufferFromHTTP::Params params =
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{
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{"endpoint", getEndpointId(location.name) },
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{"compress", "false"}
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};
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ReadBufferFromHTTP in{location.host, location.port, params};
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size_t free_disk_space;
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readBinary(free_disk_space, in);
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assertEOF(in);
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return free_disk_space;
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}
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}
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}
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