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[MemTracker] show all MemTrackers on BE's website (#4580)

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We can show all MemTrackers on BE's website by calling MemTracker::ListTrackers().
This commit is contained in:
HuangWei
2020-09-12 11:18:50 +08:00
committed by GitHub
parent 704bcec9d3
commit e26d5d0da0
1 changed files with 43 additions and 1 deletions
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44
be/src/http/default_path_handlers.cpp
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@ -24,12 +24,18 @@
#include <sstream>
#include "common/configbase.h"
#include "gutil/strings/numbers.h"
#include "gutil/strings/substitute.h"
#include "http/action/tablets_info_action.h"
#include "http/web_page_handler.h"
#include "runtime/mem_tracker.h"
#include "util/debug_util.h"
#include "util/pretty_printer.h"
#include "util/thread.h"
#include "http/action/tablets_info_action.h"
using std::vector;
using std::shared_ptr;
using std::string;
namespace doris {
@ -113,6 +119,41 @@ void display_tablets_callback(const WebPageHandler::ArgumentMap& args, EasyJson*
(*ej) = tablet_info_action.get_tablets_info(tablet_num_to_return);
}
// Registered to handle "/mem_tracker", and prints out memory tracker information.
void mem_tracker_handler(const WebPageHandler::ArgumentMap& args, std::stringstream* output) {
(*output) << "<h1>Memory usage by subsystem</h1>\n";
(*output) << "<table data-toggle='table' "
" data-pagination='true' "
" data-search='true' "
" class='table table-striped'>\n";
(*output) << "<thead><tr>"
"<th>Id</th>"
"<th>Parent</th>"
"<th>Limit</th>"
"<th data-sorter='bytesSorter' "
" data-sortable='true' "
">Current Consumption</th>"
"<th data-sorter='bytesSorter' "
" data-sortable='true' "
">Peak Consumption</th>";
(*output) << "<tbody>\n";
vector<shared_ptr<MemTracker>> trackers;
MemTracker::ListTrackers(&trackers);
for (const shared_ptr<MemTracker>& tracker : trackers) {
string parent = tracker->parent() == nullptr ? "none" : tracker->parent()->label();
string limit_str = tracker->limit() == -1 ? "none" :
ItoaKMGT(tracker->limit());
string current_consumption_str = ItoaKMGT(tracker->consumption());
string peak_consumption_str = ItoaKMGT(tracker->peak_consumption());
(*output) << strings::Substitute("<tr><td>$0</td><td>$1</td><td>$2</td>" // id, parent, limit
"<td>$3</td><td>$4</td></tr>\n", // current, peak
tracker->label(), parent, limit_str, current_consumption_str,
peak_consumption_str);
}
(*output) << "</tbody></table>\n";
}
void add_default_path_handlers(WebPageHandler* web_page_handler,
const std::shared_ptr<MemTracker>& process_mem_tracker) {
// TODO(yingchun): logs_handler is not implemented yet, so not show it on navigate bar
@ -121,6 +162,7 @@ void add_default_path_handlers(WebPageHandler* web_page_handler,
web_page_handler->register_page(
"/memz", "Memory", boost::bind<void>(&mem_usage_handler, process_mem_tracker, _1, _2),
true /* is_on_nav_bar */);
web_page_handler->register_page("/mem_tracker", "MemTracker", mem_tracker_handler,true /* is_on_nav_bar */);
register_thread_display_page(web_page_handler);
web_page_handler->register_template_page("/tablets_page", "Tablets", boost::bind<void>(&display_tablets_callback, _1, _2), true /* is_on_nav_bar */);
}