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only update os, architecture and client version if they've changed (or don't exist)
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This commit is contained in:
Grant Limberg 2025-09-08 11:00:17 -07:00
parent 1d65c1e43e
commit facca364fb
1 changed files with 29 additions and 3 deletions
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32
nonfree/controller/BigTableStatusWriter.cpp
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@ -94,10 +94,36 @@ void BigTableStatusWriter::writePending()
cbt::BulkMutation bulk;
for (const auto& entry : toWrite) {
std::string row_key = entry.network_id + "#" + entry.node_id;
// read the latest values from BigTable for this row key
std::map<std::string, std::string> latest_values;
try {
auto row = _table->ReadRow(row_key, cbt::Filter::Latest(1));
if (row->first) {
for (const auto& cell : row->second.cells()) {
if (cell.family_name() == nodeInfoColumnFamily) {
latest_values[cell.column_qualifier()] = cell.value();
}
}
}
}
catch (const std::exception& e) {
fprintf(stderr, "Exception reading from BigTable: %s\n", e.what());
}
cbt::SingleRowMutation m(row_key);
m.emplace_back(cbt::SetCell(nodeInfoColumnFamily, osColumn, entry.os));
m.emplace_back(cbt::SetCell(nodeInfoColumnFamily, archColumn, entry.arch));
m.emplace_back(cbt::SetCell(nodeInfoColumnFamily, versionColumn, entry.version));
// only update if value has changed
if (latest_values[osColumn] != entry.os) {
m.emplace_back(cbt::SetCell(nodeInfoColumnFamily, osColumn, entry.os));
}
if (latest_values[archColumn] != entry.arch) {
m.emplace_back(cbt::SetCell(nodeInfoColumnFamily, archColumn, entry.arch));
}
if (latest_values[versionColumn] != entry.version) {
m.emplace_back(cbt::SetCell(nodeInfoColumnFamily, versionColumn, entry.version));
}
char buf[64] = { 0 };
std::string addressStr = entry.address.toString(buf);
if (entry.address.ss_family == AF_INET) {