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arangodb
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Add code that checks during startup if _system database exists

This commit is contained in:
Jan Christoph Uhde 2017-03-22 18:28:35 +01:00
parent 1cb1d37d01
commit 59eafed99d
1 changed files with 28 additions and 0 deletions
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28
arangod/RocksDBEngine/RocksDBEngine.cpp
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@ -19,6 +19,7 @@
#include <rocksdb/slice_transform.h>
#include <rocksdb/table.h>
#include <rocksdb/write_batch.h>
#include <velocypack/Iterator.h>
using namespace arangodb;
using namespace arangodb::application_features;
@ -84,6 +85,33 @@ void RocksDBEngine::start() {
LOG_TOPIC(FATAL, arangodb::Logger::STARTUP) << "unable to initialize RocksDB engine: " << status.ToString();
FATAL_ERROR_EXIT();
}
// create _system database if it should not exist
velocypack::Builder builder;
getDatabases(builder);
bool foundSystem = false;
for(auto const& item : velocypack::ArrayIterator(builder.slice())){
// static string for _system?!
// stringref instead copyString
if(item.get("name").copyString() == "_system"){
foundSystem = true;
break;
}
}
if(!foundSystem){
throw std::runtime_error("not fully implemented");
int err;
VPackBuilder builder;
TRI_voc_tick_t id(1337);
createDatabase(id, builder.slice(), err);
if(err){
LOG_TOPIC(FATAL, arangodb::Logger::STARTUP) << "unable to create _system database: " << err;
FATAL_ERROR_EXIT();
}
}
}
void RocksDBEngine::stop() {