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foundationdb/fdbcli/StatusCommand.actor.cpp

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/*
* StatusCommand.actor.cpp
*
* This source file is part of the FoundationDB open source project
*
* Copyright 2013-2021 Apple Inc. and the FoundationDB project authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "fdbcli/fdbcli.actor.h"
#include "fdbclient/FDBOptions.g.h"
#include "fdbclient/IClientApi.h"
#include "fdbclient/Knobs.h"
#include "fdbclient/StatusClient.h"
#include "flow/Arena.h"
#include "flow/FastRef.h"
#include "flow/ThreadHelper.actor.h"
#include "flow/actorcompiler.h" // This must be the last #include.
namespace {
std::string getCoordinatorsInfoString(StatusObjectReader statusObj) {
std::string outputString;
try {
StatusArray coordinatorsArr = statusObj["client.coordinators.coordinators"].get_array();
for (StatusObjectReader coor : coordinatorsArr)
outputString += format("\n %s (%s)",
coor["address"].get_str().c_str(),
coor["reachable"].get_bool() ? "reachable" : "unreachable");
} catch (std::runtime_error&) {
outputString = "\n Unable to retrieve list of coordination servers";
}
return outputString;
}
std::string lineWrap(const char* text, int col) {
const char* iter = text;
const char* start = text;
const char* space = nullptr;
std::string out = "";
do {
iter++;
if (*iter == '\n' || *iter == ' ' || *iter == '\0')
space = iter;
if (*iter == '\n' || *iter == '\0' || (iter - start == col)) {
if (!space)
space = iter;
out += format("%.*s\n", (int)(space - start), start);
start = space;
if (*start == ' ' /* || *start == '\n'*/)
start++;
space = nullptr;
}
} while (*iter);
return out;
}
std::pair<int, int> getNumOfNonExcludedProcessAndZones(StatusObjectReader statusObjCluster) {
StatusObjectReader processesMap;
std::set<std::string> zones;
int numOfNonExcludedProcesses = 0;
if (statusObjCluster.get("processes", processesMap)) {
for (auto proc : processesMap.obj()) {
StatusObjectReader process(proc.second);
if (process.has("excluded") && process.last().get_bool())
continue;
numOfNonExcludedProcesses++;
std::string zoneId;
if (process.get("locality.zoneid", zoneId)) {
zones.insert(zoneId);
}
}
}
return { numOfNonExcludedProcesses, zones.size() };
}
int getNumofNonExcludedMachines(StatusObjectReader statusObjCluster) {
StatusObjectReader machineMap;
int numOfNonExcludedMachines = 0;
if (statusObjCluster.get("machines", machineMap)) {
for (auto mach : machineMap.obj()) {
StatusObjectReader machine(mach.second);
if (machine.has("excluded") && !machine.last().get_bool())
numOfNonExcludedMachines++;
}
}
return numOfNonExcludedMachines;
}
std::string getDateInfoString(StatusObjectReader statusObj, std::string key) {
time_t curTime;
if (!statusObj.has(key)) {
return "";
}
curTime = statusObj.last().get_int64();
char buffer[128];
struct tm* timeinfo;
timeinfo = localtime(&curTime);
strftime(buffer, 128, "%m/%d/%y %H:%M:%S", timeinfo);
return std::string(buffer);
}
std::string getProcessAddressByServerID(StatusObjectReader processesMap, std::string serverID) {
if (serverID == "")
return "unknown";
for (auto proc : processesMap.obj()) {
try {
StatusArray rolesArray = proc.second.get_obj()["roles"].get_array();
for (StatusObjectReader role : rolesArray) {
if (role["id"].get_str().find(serverID) == 0) {
// If this next line throws, then we found the serverID but the role has no address, so the role is
// skipped.
return proc.second.get_obj()["address"].get_str();
}
}
} catch (std::exception&) {
// If an entry in the process map is badly formed then something will throw. Since we are
// looking for a positive match, just ignore any read execeptions and move on to the next proc
}
}
return "unknown";
}
std::string getWorkloadRates(StatusObjectReader statusObj,
bool unknown,
std::string first,
std::string second,
bool transactionSection = false) {
// Re-point statusObj at either the transactions sub-doc or the operations sub-doc depending on transactionSection
// flag
if (transactionSection) {
if (!statusObj.get("transactions", statusObj))
return "unknown";
} else {
if (!statusObj.get("operations", statusObj))
return "unknown";
}
std::string path = first + "." + second;
double value;
if (!unknown && statusObj.get(path, value)) {
return format("%d Hz", (int)round(value));
}
return "unknown";
}
void getBackupDRTags(StatusObjectReader& statusObjCluster,
const char* context,
std::map<std::string, std::string>& tagMap) {
std::string path = format("layers.%s.tags", context);
StatusObjectReader tags;
if (statusObjCluster.tryGet(path, tags)) {
for (auto itr : tags.obj()) {
JSONDoc tag(itr.second);
bool running = false;
tag.tryGet("running_backup", running);
if (running) {
std::string uid;
if (tag.tryGet("mutation_stream_id", uid)) {
tagMap[itr.first] = uid;
} else {
tagMap[itr.first] = "";
}
}
}
}
}
std::string logBackupDR(const char* context, std::map<std::string, std::string> const& tagMap) {
std::string outputString = "";
if (tagMap.size() > 0) {
outputString += format("\n\n%s:", context);
for (auto itr : tagMap) {
outputString += format("\n %-22s", itr.first.c_str());
if (itr.second.size() > 0) {
outputString += format(" - %s", itr.second.c_str());
}
}
}
return outputString;
}
} // namespace
namespace fdb_cli {
void printStatus(StatusObjectReader statusObj,
StatusClient::StatusLevel level,
bool displayDatabaseAvailable,
bool hideErrorMessages) {
if (FlowTransport::transport().incompatibleOutgoingConnectionsPresent()) {
fprintf(
stderr,
"WARNING: One or more of the processes in the cluster is incompatible with this version of fdbcli.\n\n");
}
try {
bool printedCoordinators = false;
// status or status details
if (level == StatusClient::NORMAL || level == StatusClient::DETAILED) {
StatusObjectReader statusObjClient;
statusObj.get("client", statusObjClient);
// The way the output string is assembled is to add new line character before addition to the string rather
// than after
std::string outputString = "";
std::string clusterFilePath;
if (statusObjClient.get("cluster_file.path", clusterFilePath))
outputString = format("Using cluster file `%s'.\n", clusterFilePath.c_str());
else
outputString = "Using unknown cluster file.\n";
StatusObjectReader statusObjCoordinators;
StatusArray coordinatorsArr;
if (statusObjClient.get("coordinators", statusObjCoordinators)) {
// Look for a second "coordinators", under the first one.
if (statusObjCoordinators.has("coordinators"))
coordinatorsArr = statusObjCoordinators.last().get_array();
}
// Check if any coordination servers are unreachable
bool quorum_reachable;
if (statusObjCoordinators.get("quorum_reachable", quorum_reachable) && !quorum_reachable) {
outputString += "\nCould not communicate with a quorum of coordination servers:";
outputString += getCoordinatorsInfoString(statusObj);
printf("%s\n", outputString.c_str());
return;
} else {
for (StatusObjectReader coor : coordinatorsArr) {
bool reachable;
if (coor.get("reachable", reachable) && !reachable) {
outputString += "\nCould not communicate with all of the coordination servers."
"\n The database will remain operational as long as we"
"\n can connect to a quorum of servers, however the fault"
"\n tolerance of the system is reduced as long as the"
"\n servers remain disconnected.\n";
outputString += getCoordinatorsInfoString(statusObj);
outputString += "\n";
printedCoordinators = true;
break;
}
}
}
// print any client messages
if (statusObjClient.has("messages")) {
for (StatusObjectReader message : statusObjClient.last().get_array()) {
std::string desc;
if (message.get("description", desc))
outputString += "\n" + lineWrap(desc.c_str(), 80);
}
}
bool fatalRecoveryState = false;
StatusObjectReader statusObjCluster;
try {
if (statusObj.get("cluster", statusObjCluster)) {
StatusObjectReader recoveryState;
if (statusObjCluster.get("recovery_state", recoveryState)) {
std::string name;
std::string description;
if (recoveryState.get("name", name) && recoveryState.get("description", description) &&
name != "accepting_commits" && name != "all_logs_recruited" &&
name != "storage_recovered" && name != "fully_recovered") {
fatalRecoveryState = true;
if (name == "recruiting_transaction_servers") {
description +=
format("\nNeed at least %d log servers across unique zones, %d commit proxies, "
"%d GRV proxies and %d resolvers.",
recoveryState["required_logs"].get_int(),
recoveryState["required_commit_proxies"].get_int(),
recoveryState["required_grv_proxies"].get_int(),
recoveryState["required_resolvers"].get_int());
if (statusObjCluster.has("machines") && statusObjCluster.has("processes")) {
auto numOfNonExcludedProcessesAndZones =
getNumOfNonExcludedProcessAndZones(statusObjCluster);
description +=
format("\nHave %d non-excluded processes on %d machines across %d zones.",
numOfNonExcludedProcessesAndZones.first,
getNumofNonExcludedMachines(statusObjCluster),
numOfNonExcludedProcessesAndZones.second);
}
} else if (name == "locking_old_transaction_servers" &&
recoveryState["missing_logs"].get_str().size()) {
description += format("\nNeed one or more of the following log servers: %s",
recoveryState["missing_logs"].get_str().c_str());
}
description = lineWrap(description.c_str(), 80);
if (!printedCoordinators &&
(name == "reading_coordinated_state" || name == "locking_coordinated_state" ||
name == "configuration_never_created" || name == "writing_coordinated_state")) {
description += getCoordinatorsInfoString(statusObj);
description += "\n";
printedCoordinators = true;
}
outputString += "\n" + description;
}
}
}
} catch (std::runtime_error&) {
}
// Check if cluster controllable is reachable
try {
// print any cluster messages
if (statusObjCluster.has("messages") && statusObjCluster.last().get_array().size()) {
// any messages we don't want to display
std::set<std::string> skipMsgs = { "unreachable_process", "" };
if (fatalRecoveryState) {
skipMsgs.insert("status_incomplete");
skipMsgs.insert("unreadable_configuration");
skipMsgs.insert("immediate_priority_transaction_start_probe_timeout");
skipMsgs.insert("batch_priority_transaction_start_probe_timeout");
skipMsgs.insert("transaction_start_probe_timeout");
skipMsgs.insert("read_probe_timeout");
skipMsgs.insert("commit_probe_timeout");
}
for (StatusObjectReader msgObj : statusObjCluster.last().get_array()) {
std::string messageName;
if (!msgObj.get("name", messageName)) {
continue;
}
if (skipMsgs.count(messageName)) {
continue;
} else if (messageName == "client_issues") {
if (msgObj.has("issues")) {
for (StatusObjectReader issue : msgObj["issues"].get_array()) {
std::string issueName;
if (!issue.get("name", issueName)) {
continue;
}
std::string description;
if (!issue.get("description", description)) {
description = issueName;
}
std::string countStr;
StatusArray addresses;
if (!issue.has("addresses")) {
countStr = "Some client(s)";
} else {
addresses = issue["addresses"].get_array();
countStr = format("%d client(s)", addresses.size());
}
outputString +=
format("\n%s reported: %s\n", countStr.c_str(), description.c_str());
if (level == StatusClient::StatusLevel::DETAILED) {
for (int i = 0; i < addresses.size() && i < 4; ++i) {
outputString += format(" %s\n", addresses[i].get_str().c_str());
}
if (addresses.size() > 4) {
outputString += " ...\n";
}
}
}
}
} else {
if (msgObj.has("description"))
outputString += "\n" + lineWrap(msgObj.last().get_str().c_str(), 80);
}
}
}
} catch (std::runtime_error&) {
}
if (fatalRecoveryState) {
printf("%s", outputString.c_str());
return;
}
StatusObjectReader statusObjConfig;
StatusArray excludedServersArr;
Optional<std::string> activePrimaryDC;
if (statusObjCluster.has("active_primary_dc")) {
activePrimaryDC = statusObjCluster["active_primary_dc"].get_str();
}
if (statusObjCluster.get("configuration", statusObjConfig)) {
if (statusObjConfig.has("excluded_servers"))
excludedServersArr = statusObjConfig.last().get_array();
}
// If there is a configuration message then there is no configuration information to display
outputString += "\nConfiguration:";
std::string outputStringCache = outputString;
bool isOldMemory = false;
try {
// Configuration section
// FIXME: Should we suppress this if there are cluster messages implying that the database has no
// configuration?
outputString += "\n Redundancy mode - ";
std::string strVal;
if (statusObjConfig.get("redundancy_mode", strVal)) {
outputString += strVal;
} else
outputString += "unknown";
outputString += "\n Storage engine - ";
if (statusObjConfig.get("storage_engine", strVal)) {
if (strVal == "memory-1") {
isOldMemory = true;
}
outputString += strVal;
} else
outputString += "unknown";
int intVal;
outputString += "\n Coordinators - ";
if (statusObjConfig.get("coordinators_count", intVal)) {
outputString += std::to_string(intVal);
} else
outputString += "unknown";
if (excludedServersArr.size()) {
outputString += format("\n Exclusions - %d (type `exclude' for details)",
excludedServersArr.size());
}
if (statusObjConfig.get("commit_proxies", intVal))
outputString += format("\n Desired Commit Proxies - %d", intVal);
if (statusObjConfig.get("grv_proxies", intVal))
outputString += format("\n Desired GRV Proxies - %d", intVal);
if (statusObjConfig.get("resolvers", intVal))
outputString += format("\n Desired Resolvers - %d", intVal);
if (statusObjConfig.get("logs", intVal))
outputString += format("\n Desired Logs - %d", intVal);
if (statusObjConfig.get("remote_logs", intVal))
outputString += format("\n Desired Remote Logs - %d", intVal);
if (statusObjConfig.get("log_routers", intVal))
outputString += format("\n Desired Log Routers - %d", intVal);
if (statusObjConfig.get("tss_count", intVal) && intVal > 0) {
int activeTss = 0;
if (statusObjCluster.has("active_tss_count")) {
statusObjCluster.get("active_tss_count", activeTss);
}
outputString += format("\n TSS - %d/%d", activeTss, intVal);
if (statusObjConfig.get("tss_storage_engine", strVal))
outputString += format("\n TSS Storage Engine - %s", strVal.c_str());
}
outputString += "\n Usable Regions - ";
if (statusObjConfig.get("usable_regions", intVal)) {
outputString += std::to_string(intVal);
} else {
outputString += "unknown";
}
StatusArray regions;
if (statusObjConfig.has("regions")) {
outputString += "\n Regions: ";
regions = statusObjConfig["regions"].get_array();
for (StatusObjectReader region : regions) {
bool isPrimary = false;
std::vector<std::string> regionSatelliteDCs;
std::string regionDC;
for (StatusObjectReader dc : region["datacenters"].get_array()) {
if (!dc.has("satellite")) {
regionDC = dc["id"].get_str();
if (activePrimaryDC.present() && dc["id"].get_str() == activePrimaryDC.get()) {
isPrimary = true;
}
} else if (dc["satellite"].get_int() == 1) {
regionSatelliteDCs.push_back(dc["id"].get_str());
}
}
if (activePrimaryDC.present()) {
if (isPrimary) {
outputString += "\n Primary -";
} else {
outputString += "\n Remote -";
}
} else {
outputString += "\n Region -";
}
outputString += format("\n Datacenter - %s", regionDC.c_str());
if (regionSatelliteDCs.size() > 0) {
outputString += "\n Satellite datacenters - ";
for (int i = 0; i < regionSatelliteDCs.size(); i++) {
if (i != regionSatelliteDCs.size() - 1) {
outputString += format("%s, ", regionSatelliteDCs[i].c_str());
} else {
outputString += format("%s", regionSatelliteDCs[i].c_str());
}
}
}
isPrimary = false;
if (region.get("satellite_redundancy_mode", strVal)) {
outputString += format("\n Satellite Redundancy Mode - %s", strVal.c_str());
}
if (region.get("satellite_anti_quorum", intVal)) {
outputString += format("\n Satellite Anti Quorum - %d", intVal);
}
if (region.get("satellite_logs", intVal)) {
outputString += format("\n Satellite Logs - %d", intVal);
}
if (region.get("satellite_log_policy", strVal)) {
outputString += format("\n Satellite Log Policy - %s", strVal.c_str());
}
if (region.get("satellite_log_replicas", intVal)) {
outputString += format("\n Satellite Log Replicas - %d", intVal);
}
if (region.get("satellite_usable_dcs", intVal)) {
outputString += format("\n Satellite Usable DCs - %d", intVal);
}
}
}
} catch (std::runtime_error&) {
outputString = outputStringCache;
outputString += "\n Unable to retrieve configuration status";
}
// Cluster section
outputString += "\n\nCluster:";
StatusObjectReader processesMap;
StatusObjectReader machinesMap;
outputStringCache = outputString;
bool machinesAreZones = true;
std::map<std::string, int> zones;
try {
outputString += "\n FoundationDB processes - ";
if (statusObjCluster.get("processes", processesMap)) {
outputString += format("%d", processesMap.obj().size());
int errors = 0;
int processExclusions = 0;
for (auto p : processesMap.obj()) {
StatusObjectReader process(p.second);
bool excluded = process.has("excluded") && process.last().get_bool();
if (excluded) {
processExclusions++;
}
if (process.has("messages") && process.last().get_array().size()) {
errors++;
}
std::string zoneId;
if (process.get("locality.zoneid", zoneId)) {
std::string machineId;
if (!process.get("locality.machineid", machineId) || machineId != zoneId) {
machinesAreZones = false;
}
int& nonExcluded = zones[zoneId];
if (!excluded) {
nonExcluded = 1;
}
}
}
if (errors > 0 || processExclusions) {
outputString += format(" (less %d excluded; %d with errors)", processExclusions, errors);
}
} else
outputString += "unknown";
if (zones.size() > 0) {
outputString += format("\n Zones - %d", zones.size());
int zoneExclusions = 0;
for (auto itr : zones) {
if (itr.second == 0) {
++zoneExclusions;
}
}
if (zoneExclusions > 0) {
outputString += format(" (less %d excluded)", zoneExclusions);
}
} else {
outputString += "\n Zones - unknown";
}
outputString += "\n Machines - ";
if (statusObjCluster.get("machines", machinesMap)) {
outputString += format("%d", machinesMap.obj().size());
int machineExclusions = 0;
for (auto mach : machinesMap.obj()) {
StatusObjectReader machine(mach.second);
if (machine.has("excluded") && machine.last().get_bool())
machineExclusions++;
}
if (machineExclusions) {
outputString += format(" (less %d excluded)", machineExclusions);
}
int64_t minMemoryAvailable = std::numeric_limits<int64_t>::max();
for (auto proc : processesMap.obj()) {
StatusObjectReader process(proc.second);
int64_t availBytes;
if (process.get("memory.available_bytes", availBytes)) {
minMemoryAvailable = std::min(minMemoryAvailable, availBytes);
}
}
if (minMemoryAvailable < std::numeric_limits<int64_t>::max()) {
double worstServerGb = minMemoryAvailable / (1024.0 * 1024 * 1024);
outputString += "\n Memory availability - ";
outputString += format("%.1f GB per process on machine with least available", worstServerGb);
outputString += minMemoryAvailable < 4294967296
? "\n >>>>> (WARNING: 4.0 GB recommended) <<<<<"
: "";
}
double retransCount = 0;
for (auto mach : machinesMap.obj()) {
StatusObjectReader machine(mach.second);
double hz;
if (machine.get("network.tcp_segments_retransmitted.hz", hz))
retransCount += hz;
}
if (retransCount > 0) {
outputString += format("\n Retransmissions rate - %d Hz", (int)round(retransCount));
}
} else
outputString += "\n Machines - unknown";
StatusObjectReader faultTolerance;
if (statusObjCluster.get("fault_tolerance", faultTolerance)) {
int availLoss, dataLoss;
if (faultTolerance.get("max_zone_failures_without_losing_availability", availLoss) &&
faultTolerance.get("max_zone_failures_without_losing_data", dataLoss)) {
outputString += "\n Fault Tolerance - ";
int minLoss = std::min(availLoss, dataLoss);
const char* faultDomain = machinesAreZones ? "machine" : "zone";
outputString += format("%d %ss", minLoss, faultDomain);
if (dataLoss > availLoss) {
outputString += format(" (%d without data loss)", dataLoss);
}
if (dataLoss == -1) {
ASSERT_WE_THINK(availLoss == -1);
outputString += format(
"\n\n Warning: the database may have data loss and availability loss. Please restart "
"following tlog interfaces, otherwise storage servers may never be able to catch "
"up.\n");
StatusObjectReader logs;
if (statusObjCluster.has("logs")) {
for (StatusObjectReader logEpoch : statusObjCluster.last().get_array()) {
bool possiblyLosingData;
if (logEpoch.get("possibly_losing_data", possiblyLosingData) &&
!possiblyLosingData) {
continue;
}
// Current epoch doesn't have an end version.
int64_t epoch, beginVersion, endVersion = invalidVersion;
bool current;
logEpoch.get("epoch", epoch);
logEpoch.get("begin_version", beginVersion);
logEpoch.get("end_version", endVersion);
logEpoch.get("current", current);
std::string missing_log_interfaces;
if (logEpoch.has("log_interfaces")) {
for (StatusObjectReader logInterface : logEpoch.last().get_array()) {
bool healthy;
std::string address, id;
if (logInterface.get("healthy", healthy) && !healthy) {
logInterface.get("id", id);
logInterface.get("address", address);
missing_log_interfaces += format("%s,%s ", id.c_str(), address.c_str());
}
}
}
outputString += format(
" %s log epoch: %lld begin: %lld end: %s, missing "
"log interfaces(id,address): %s\n",
current ? "Current" : "Old",
epoch,
beginVersion,
endVersion == invalidVersion ? "(unknown)" : format("%lld", endVersion).c_str(),
missing_log_interfaces.c_str());
}
}
}
}
}
std::string serverTime = getDateInfoString(statusObjCluster, "cluster_controller_timestamp");
if (serverTime != "") {
outputString += "\n Server time - " + serverTime;
}
} catch (std::runtime_error&) {
outputString = outputStringCache;
outputString += "\n Unable to retrieve cluster status";
}
StatusObjectReader statusObjData;
statusObjCluster.get("data", statusObjData);
// Data section
outputString += "\n\nData:";
outputStringCache = outputString;
try {
outputString += "\n Replication health - ";
StatusObjectReader statusObjDataState;
statusObjData.get("state", statusObjDataState);
std::string dataState;
statusObjDataState.get("name", dataState);
std::string description = "";
statusObjDataState.get("description", description);
bool healthy;
if (statusObjDataState.get("healthy", healthy) && healthy) {
outputString += "Healthy" + (description != "" ? " (" + description + ")" : "");
} else if (dataState == "missing_data") {
outputString += "UNHEALTHY" + (description != "" ? ": " + description : "");
} else if (dataState == "healing") {
outputString += "HEALING" + (description != "" ? ": " + description : "");
} else if (description != "") {
outputString += description;
} else {
outputString += "unknown";
}
if (statusObjData.has("moving_data")) {
StatusObjectReader movingData = statusObjData.last();
double dataInQueue, dataInFlight;
if (movingData.get("in_queue_bytes", dataInQueue) &&
movingData.get("in_flight_bytes", dataInFlight))
outputString += format("\n Moving data - %.3f GB",
((double)dataInQueue + (double)dataInFlight) / 1e9);
} else if (dataState == "initializing") {
outputString += "\n Moving data - unknown (initializing)";
} else {
outputString += "\n Moving data - unknown";
}
outputString += "\n Sum of key-value sizes - ";
if (statusObjData.has("total_kv_size_bytes")) {
double totalDBBytes = statusObjData.last().get_int64();
if (totalDBBytes >= 1e12)
outputString += format("%.3f TB", (totalDBBytes / 1e12));
else if (totalDBBytes >= 1e9)
outputString += format("%.3f GB", (totalDBBytes / 1e9));
else
// no decimal points for MB
outputString += format("%d MB", (int)round(totalDBBytes / 1e6));
} else {
outputString += "unknown";
}
outputString += "\n Disk space used - ";
if (statusObjData.has("total_disk_used_bytes")) {
double totalDiskUsed = statusObjData.last().get_int64();
if (totalDiskUsed >= 1e12)
outputString += format("%.3f TB", (totalDiskUsed / 1e12));
else if (totalDiskUsed >= 1e9)
outputString += format("%.3f GB", (totalDiskUsed / 1e9));
else
// no decimal points for MB
outputString += format("%d MB", (int)round(totalDiskUsed / 1e6));
} else
outputString += "unknown";
} catch (std::runtime_error&) {
outputString = outputStringCache;
outputString += "\n Unable to retrieve data status";
}
// Storage Wiggle section
StatusObjectReader storageWigglerObj;
std::string storageWigglerString;
try {
if (statusObjCluster.get("storage_wiggler", storageWigglerObj)) {
int size = 0;
if (storageWigglerObj.has("wiggle_server_addresses")) {
storageWigglerString += "\n Wiggle server addresses-";
for (auto& v : storageWigglerObj.obj().at("wiggle_server_addresses").get_array()) {
storageWigglerString += " " + v.get_str();
size += 1;
}
}
storageWigglerString += "\n Wiggle server count - " + std::to_string(size);
}
} catch (std::runtime_error&) {
storageWigglerString += "\n Unable to retrieve storage wiggler status";
}
if (storageWigglerString.size()) {
outputString += "\n\nStorage wiggle:";
outputString += storageWigglerString;
}
// Operating space section
outputString += "\n\nOperating space:";
std::string operatingSpaceString = "";
try {
int64_t val;
if (statusObjData.get("least_operating_space_bytes_storage_server", val))
operatingSpaceString += format("\n Storage server - %.1f GB free on most full server",
std::max(val / 1e9, 0.0));
if (statusObjData.get("least_operating_space_bytes_log_server", val))
operatingSpaceString += format("\n Log server - %.1f GB free on most full server",
std::max(val / 1e9, 0.0));
} catch (std::runtime_error&) {
operatingSpaceString = "";
}
if (operatingSpaceString.empty()) {
operatingSpaceString += "\n Unable to retrieve operating space status";
}
outputString += operatingSpaceString;
// Workload section
outputString += "\n\nWorkload:";
outputStringCache = outputString;
bool foundLogAndStorage = false;
try {
// Determine which rates are unknown
StatusObjectReader statusObjWorkload;
statusObjCluster.get("workload", statusObjWorkload);
std::string performanceLimited = "";
bool unknownMCT = false;
bool unknownRP = false;
// Print performance limit details if known.
try {
StatusObjectReader limit = statusObjCluster["qos.performance_limited_by"];
std::string name = limit["name"].get_str();
if (name != "workload") {
std::string desc = limit["description"].get_str();
std::string serverID;
limit.get("reason_server_id", serverID);
std::string procAddr = getProcessAddressByServerID(processesMap, serverID);
performanceLimited = format("\n Performance limited by %s: %s",
(procAddr == "unknown")
? ("server" + (serverID == "" ? "" : (" " + serverID))).c_str()
: "process",
desc.c_str());
if (procAddr != "unknown")
performanceLimited += format("\n Most limiting process: %s", procAddr.c_str());
}
} catch (std::exception&) {
// If anything here throws (such as for an incompatible type) ignore it.
}
// display the known rates
outputString += "\n Read rate - ";
outputString += getWorkloadRates(statusObjWorkload, unknownRP, "reads", "hz");
outputString += "\n Write rate - ";
outputString += getWorkloadRates(statusObjWorkload, unknownMCT, "writes", "hz");
outputString += "\n Transactions started - ";
outputString += getWorkloadRates(statusObjWorkload, unknownMCT, "started", "hz", true);
outputString += "\n Transactions committed - ";
outputString += getWorkloadRates(statusObjWorkload, unknownMCT, "committed", "hz", true);
outputString += "\n Conflict rate - ";
outputString += getWorkloadRates(statusObjWorkload, unknownMCT, "conflicted", "hz", true);
outputString += unknownRP ? "" : performanceLimited;
// display any process messages
// FIXME: Above comment is not what this code block does, it actually just looks for a specific message
// in the process map, *by description*, and adds process addresses that have it to a vector. Either
// change the comment or the code.
std::vector<std::string> messagesAddrs;
for (auto proc : processesMap.obj()) {
StatusObjectReader process(proc.second);
if (process.has("roles")) {
StatusArray rolesArray = proc.second.get_obj()["roles"].get_array();
bool storageRole = false;
bool logRole = false;
for (StatusObjectReader role : rolesArray) {
if (role["role"].get_str() == "storage") {
storageRole = true;
} else if (role["role"].get_str() == "log") {
logRole = true;
}
}
if (storageRole && logRole) {
foundLogAndStorage = true;
}
}
if (process.has("messages")) {
StatusArray processMessagesArr = process.last().get_array();
if (processMessagesArr.size()) {
for (StatusObjectReader msg : processMessagesArr) {
std::string desc;
std::string addr;
if (msg.get("description", desc) && desc == "Unable to update cluster file." &&
process.get("address", addr)) {
messagesAddrs.push_back(addr);
}
}
}
}
}
if (messagesAddrs.size()) {
outputString += format("\n\n%d FoundationDB processes reported unable to update cluster file:",
messagesAddrs.size());
for (auto msg : messagesAddrs) {
outputString += "\n " + msg;
}
}
} catch (std::runtime_error&) {
outputString = outputStringCache;
outputString += "\n Unable to retrieve workload status";
}
// Backup and DR section
outputString += "\n\nBackup and DR:";
std::map<std::string, std::string> backupTags;
getBackupDRTags(statusObjCluster, "backup", backupTags);
std::map<std::string, std::string> drPrimaryTags;
getBackupDRTags(statusObjCluster, "dr_backup", drPrimaryTags);
std::map<std::string, std::string> drSecondaryTags;
getBackupDRTags(statusObjCluster, "dr_backup_dest", drSecondaryTags);
outputString += format("\n Running backups - %d", backupTags.size());
outputString += format("\n Running DRs - ");
if (drPrimaryTags.size() == 0 && drSecondaryTags.size() == 0) {
outputString += format("%d", 0);
} else {
if (drPrimaryTags.size() > 0) {
outputString += format("%d as primary", drPrimaryTags.size());
if (drSecondaryTags.size() > 0) {
outputString += ", ";
}
}
if (drSecondaryTags.size() > 0) {
outputString += format("%d as secondary", drSecondaryTags.size());
}
}
// status details
if (level == StatusClient::DETAILED) {
outputString += logBackupDR("Running backup tags", backupTags);
outputString += logBackupDR("Running DR tags (as primary)", drPrimaryTags);
outputString += logBackupDR("Running DR tags (as secondary)", drSecondaryTags);
outputString += "\n\nProcess performance details:";
outputStringCache = outputString;
try {
// constructs process performance details output
std::map<NetworkAddress, std::string> workerDetails;
for (auto proc : processesMap.obj()) {
StatusObjectReader procObj(proc.second);
std::string address;
procObj.get("address", address);
std::string line;
NetworkAddress parsedAddress;
try {
parsedAddress = NetworkAddress::parse(address);
} catch (Error&) {
// Groups all invalid IP address/port pair in the end of this detail group.
line = format(" %-22s (invalid IP address or port)", address.c_str());
IPAddress::IPAddressStore maxIp;
for (int i = 0; i < maxIp.size(); ++i) {
maxIp[i] = std::numeric_limits<std::remove_reference<decltype(maxIp[0])>::type>::max();
}
std::string& lastline =
workerDetails[NetworkAddress(IPAddress(maxIp), std::numeric_limits<uint16_t>::max())];
if (!lastline.empty())
lastline.append("\n");
lastline += line;
continue;
}
try {
double tx = -1, rx = -1, mCPUUtil = -1;
int64_t processTotalSize;
// Get the machine for this process
// StatusObjectReader mach = machinesMap[procObj["machine_id"].get_str()];
StatusObjectReader mach;
if (machinesMap.get(procObj["machine_id"].get_str(), mach, false)) {
StatusObjectReader machCPU;
if (mach.get("cpu", machCPU)) {
machCPU.get("logical_core_utilization", mCPUUtil);
StatusObjectReader network;
if (mach.get("network", network)) {
network.get("megabits_sent.hz", tx);
network.get("megabits_received.hz", rx);
}
}
}
procObj.get("memory.used_bytes", processTotalSize);
StatusObjectReader procCPUObj;
procObj.get("cpu", procCPUObj);
line = format(" %-22s (", address.c_str());
double usageCores;
if (procCPUObj.get("usage_cores", usageCores))
line += format("%3.0f%% cpu;", usageCores * 100);
line += mCPUUtil != -1 ? format("%3.0f%% machine;", mCPUUtil * 100) : "";
line += std::min(tx, rx) != -1 ? format("%6.3f Gbps;", std::max(tx, rx) / 1000.0) : "";
double diskBusy;
if (procObj.get("disk.busy", diskBusy))
line += format("%3.0f%% disk IO;", 100.0 * diskBusy);
line += processTotalSize != -1
? format("%4.1f GB", processTotalSize / (1024.0 * 1024 * 1024))
: "";
double availableBytes;
if (procObj.get("memory.available_bytes", availableBytes))
line += format(" / %3.1f GB RAM )", availableBytes / (1024.0 * 1024 * 1024));
else
line += " )";
if (procObj.has("messages")) {
for (StatusObjectReader message : procObj.last().get_array()) {
std::string desc;
if (message.get("description", desc)) {
if (message.has("type")) {
line += "\n Last logged error: " + desc;
} else {
line += "\n " + desc;
}
}
}
}
workerDetails[parsedAddress] = line;
}
catch (std::runtime_error&) {
std::string noMetrics = format(" %-22s (no metrics available)", address.c_str());
workerDetails[parsedAddress] = noMetrics;
}
}
for (auto w : workerDetails)
outputString += "\n" + format("%s", w.second.c_str());
} catch (std::runtime_error&) {
outputString = outputStringCache;
outputString += "\n Unable to retrieve process performance details";
}
if (!printedCoordinators) {
printedCoordinators = true;
outputString += "\n\nCoordination servers:";
outputString += getCoordinatorsInfoString(statusObj);
}
}
// client time
std::string clientTime = getDateInfoString(statusObjClient, "timestamp");
if (clientTime != "") {
outputString += "\n\nClient time: " + clientTime;
}
if (processesMap.obj().size() > 1 && isOldMemory) {
outputString += "\n\nWARNING: type `configure memory' to switch to a safer method of persisting data "
"on the transaction logs.";
}
if (processesMap.obj().size() > 9 && foundLogAndStorage) {
outputString +=
"\n\nWARNING: A single process is both a transaction log and a storage server.\n For best "
"performance use dedicated disks for the transaction logs by setting process classes.";
}
if (statusObjCluster.has("data_distribution_disabled")) {
outputString += "\n\nWARNING: Data distribution is off.";
} else {
if (statusObjCluster.has("data_distribution_disabled_for_ss_failures")) {
outputString += "\n\nWARNING: Data distribution is currently turned on but disabled for all "
"storage server failures.";
}
if (statusObjCluster.has("data_distribution_disabled_for_rebalance")) {
outputString += "\n\nWARNING: Data distribution is currently turned on but shard size balancing is "
"currently disabled.";
}
}
printf("%s\n", outputString.c_str());
}
// status minimal
else if (level == StatusClient::MINIMAL) {
// Checking for field exsistence is not necessary here because if a field is missing there is no additional
// information that we would be able to display if we continued execution. Instead, any missing fields will
// throw and the catch will display the proper message.
try {
// If any of these throw, can't get status because the result makes no sense.
StatusObjectReader statusObjClient = statusObj["client"].get_obj();
StatusObjectReader statusObjClientDatabaseStatus = statusObjClient["database_status"].get_obj();
bool available = statusObjClientDatabaseStatus["available"].get_bool();
// Database unavailable
if (!available) {
printf("%s", "The database is unavailable; type `status' for more information.\n");
} else {
try {
bool healthy = statusObjClientDatabaseStatus["healthy"].get_bool();
// Database available without issues
if (healthy) {
if (displayDatabaseAvailable) {
printf("The database is available.\n");
}
} else { // Database running but with issues
printf("The database is available, but has issues (type 'status' for more information).\n");
}
} catch (std::runtime_error&) {
printf("The database is available, but has issues (type 'status' for more information).\n");
}
}
bool upToDate;
if (!statusObjClient.get("cluster_file.up_to_date", upToDate) || !upToDate) {
fprintf(stderr,
"WARNING: The cluster file is not up to date. Type 'status' for more information.\n");
}
} catch (std::runtime_error&) {
printf("Unable to determine database state, type 'status' for more information.\n");
}
}
// status JSON
else if (level == StatusClient::JSON) {
printf("%s\n",
json_spirit::write_string(json_spirit::mValue(statusObj.obj()),
json_spirit::Output_options::pretty_print)
.c_str());
}
} catch (Error&) {
if (hideErrorMessages)
return;
if (level == StatusClient::MINIMAL) {
printf("Unable to determine database state, type 'status' for more information.\n");
} else if (level == StatusClient::JSON) {
printf("Could not retrieve status json.\n\n");
} else {
printf("Could not retrieve status, type 'status json' for more information.\n");
}
}
}
// "db" is the handler to the multiversion database
// localDb is the native Database object
// localDb is rarely needed except the "db" has not establised a connection to the cluster where the operation will
// return Never as we expect status command to always return, we use "localDb" to return the default result
ACTOR Future<bool> statusCommandActor(Reference<IDatabase> db,
Database localDb,
std::vector<StringRef> tokens,
bool isExecMode) {
state StatusClient::StatusLevel level;
if (tokens.size() == 1)
level = StatusClient::NORMAL;
else if (tokens.size() == 2 && tokencmp(tokens[1], "details"))
level = StatusClient::DETAILED;
else if (tokens.size() == 2 && tokencmp(tokens[1], "minimal"))
level = StatusClient::MINIMAL;
else if (tokens.size() == 2 && tokencmp(tokens[1], "json"))
level = StatusClient::JSON;
else {
printUsage(tokens[0]);
return false;
}
state StatusObject s;
state Reference<ITransaction> tr = db->createTransaction();
if (!tr->isValid()) {
StatusObject _s = wait(StatusClient::statusFetcher(localDb));
s = _s;
} else {
state ThreadFuture<Optional<Value>> statusValueF = tr->get(LiteralStringRef("\xff\xff/status/json"));
Optional<Value> statusValue = wait(safeThreadFutureToFuture(statusValueF));
if (!statusValue.present()) {
fprintf(stderr, "ERROR: Failed to get status json from the cluster\n");
}
json_spirit::mValue mv;
json_spirit::read_string(statusValue.get().toString(), mv);
s = StatusObject(mv.get_obj());
}
if (!isExecMode)
printf("\n");
printStatus(s, level);
if (!isExecMode)
printf("\n");
return true;
}
CommandFactory statusFactory(
"status",
CommandHelp("status [minimal|details|json]",
"get the status of a FoundationDB cluster",
"If the cluster is down, this command will print a diagnostic which may be useful in figuring out "
"what is wrong. If the cluster is running, this command will print cluster "
"statistics.\n\nSpecifying `minimal' will provide a minimal description of the status of your "
"database.\n\nSpecifying `details' will provide load information for individual "
"workers.\n\nSpecifying `json' will provide status information in a machine readable JSON format."));
} // namespace fdb_cli
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