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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// 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.
package com.cloud.usage;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import com.cloud.utils.db.Transaction;
public class UsageSanityChecker {
private StringBuffer errors;
private String lastCheckId = "";
private final String lastCheckFile = "/usr/local/libexec/sanity-check-last-id";
private boolean checkMaxUsage(Connection conn) throws SQLException{
PreparedStatement pstmt = conn.prepareStatement("SELECT value FROM `cloud`.`configuration` where name = 'usage.stats.job.aggregation.range'");
ResultSet rs = pstmt.executeQuery();
int aggregationRange = 1440;
if(rs.next()){
aggregationRange = rs.getInt(1);
} else {
System.out.println("Failed to retrieve aggregation range. Using default : "+aggregationRange);
}
int aggregationHours = aggregationRange / 60;
/*
* Check for usage records with raw_usage > aggregationHours
*/
pstmt = conn.prepareStatement("SELECT count(*) FROM `cloud_usage`.`cloud_usage` cu where usage_type not in (4,5) and raw_usage > "+aggregationHours+lastCheckId);
rs = pstmt.executeQuery();
if(rs.next() && (rs.getInt(1) > 0)){
errors.append("Error: Found "+rs.getInt(1)+" usage records with raw_usage > "+aggregationHours);
errors.append("\n");
return false;
}
return true;
}
private boolean checkVmUsage(Connection conn) throws SQLException{
boolean success = true;
/*
* Check for Vm usage records which are created after the vm is destroyed
*/
PreparedStatement pstmt = conn.prepareStatement("select count(*) from cloud_usage.cloud_usage cu inner join cloud.vm_instance vm where vm.type = 'User' " +
"and cu.usage_type in (1 , 2) and cu.usage_id = vm.id and cu.start_date > vm.removed"+lastCheckId);
ResultSet rs = pstmt.executeQuery();
if(rs.next() && (rs.getInt(1) > 0)){
errors.append("Error: Found "+rs.getInt(1)+" Vm usage records which are created after Vm is destroyed");
errors.append("\n");
success = false;
}
/*
* Check for Vms which have multiple running vm records in helper table
*/
pstmt = conn.prepareStatement("select sum(cnt) from (select count(*) as cnt from cloud_usage.usage_vm_instance where usage_type =1 " +
"and end_date is null group by vm_instance_id having count(vm_instance_id) > 1) c ;");
rs = pstmt.executeQuery();
if(rs.next() && (rs.getInt(1) > 0)){
errors.append("Error: Found "+rs.getInt(1)+" duplicate running Vm entries in vm usage helper table");
errors.append("\n");
success = false;
}
/*
* Check for Vms which have multiple allocated vm records in helper table
*/
pstmt = conn.prepareStatement("select sum(cnt) from (select count(*) as cnt from cloud_usage.usage_vm_instance where usage_type =2 " +
"and end_date is null group by vm_instance_id having count(vm_instance_id) > 1) c ;");
rs = pstmt.executeQuery();
if(rs.next() && (rs.getInt(1) > 0)){
errors.append("Error: Found "+rs.getInt(1)+" duplicate allocated Vm entries in vm usage helper table");
errors.append("\n");
success = false;
}
/*
* Check for Vms which have running vm entry without allocated vm entry in helper table
*/
pstmt = conn.prepareStatement("select count(vm_instance_id) from cloud_usage.usage_vm_instance o where o.end_date is null and o.usage_type=1 and not exists " +
"(select 1 from cloud_usage.usage_vm_instance i where i.vm_instance_id=o.vm_instance_id and usage_type=2 and i.end_date is null)");
rs = pstmt.executeQuery();
if(rs.next() && (rs.getInt(1) > 0)){
errors.append("Error: Found "+rs.getInt(1)+" running Vm entries without corresponding allocated entries in vm usage helper table");
errors.append("\n");
success = false;
}
return success;
}
private boolean checkVolumeUsage(Connection conn) throws SQLException{
boolean success = true;
/*
* Check for Volume usage records which are created after the volume is removed
*/
PreparedStatement pstmt = conn.prepareStatement("select count(*) from cloud_usage.cloud_usage cu inner join cloud.volumes v " +
"where cu.usage_type = 6 and cu.usage_id = v.id and cu.start_date > v.removed"+lastCheckId);
ResultSet rs = pstmt.executeQuery();
if(rs.next() && (rs.getInt(1) > 0)){
errors.append("Error: Found "+rs.getInt(1)+" volume usage records which are created after volume is removed");
errors.append("\n");
success = false;
}
/*
* Check for duplicate records in volume usage helper table
*/
pstmt = conn.prepareStatement("select sum(cnt) from (select count(*) as cnt from cloud_usage.usage_volume " +
"where deleted is null group by id having count(id) > 1) c;");
rs = pstmt.executeQuery();
if(rs.next() && (rs.getInt(1) > 0)){
errors.append("Error: Found "+rs.getInt(1)+" duplicate records is volume usage helper table");
errors.append("\n");
success = false;
}
return success;
}
private boolean checkTemplateISOUsage(Connection conn) throws SQLException{
/*
* Check for Template/ISO usage records which are created after it is removed
*/
PreparedStatement pstmt = conn.prepareStatement("select count(*) from cloud_usage.cloud_usage cu inner join cloud.template_zone_ref tzr " +
"where cu.usage_id = tzr.template_id and cu.zone_id = tzr.zone_id and cu.usage_type in (7,8) and cu.start_date > tzr.removed"+lastCheckId);
ResultSet rs = pstmt.executeQuery();
if(rs.next() && (rs.getInt(1) > 0)){
errors.append("Error: Found "+rs.getInt(1)+" template/ISO usage records which are created after it is removed");
errors.append("\n");
return false;
}
return true;
}
private boolean checkSnapshotUsage(Connection conn) throws SQLException{
/*
* Check for snapshot usage records which are created after snapshot is removed
*/
PreparedStatement pstmt = conn.prepareStatement("select count(*) from cloud_usage.cloud_usage cu inner join cloud.snapshots s " +
"where cu.usage_id = s.id and cu.usage_type = 9 and cu.start_date > s.removed"+lastCheckId);
ResultSet rs = pstmt.executeQuery();
if(rs.next() && (rs.getInt(1) > 0)){
errors.append("Error: Found "+rs.getInt(1)+" snapshot usage records which are created after snapshot is removed");
errors.append("\n");
return false;
}
return true;
}
public String runSanityCheck() throws SQLException{
try {
BufferedReader reader = new BufferedReader( new FileReader (lastCheckFile));
String last_id = null;
if( (reader != null) && ( last_id = reader.readLine() ) != null ) {
int lastId = Integer.parseInt(last_id);
if(lastId > 0){
lastCheckId = " and cu.id > "+last_id;
}
}
reader.close();
} catch (Exception e) {
// Error while reading last check id
}
Connection conn = Transaction.getStandaloneConnection();
int maxId = 0;
PreparedStatement pstmt = conn.prepareStatement("select max(id) from cloud_usage.cloud_usage");
ResultSet rs = pstmt.executeQuery();
if(rs.next() && (rs.getInt(1) > 0)){
maxId = rs.getInt(1);
lastCheckId += " and cu.id <= "+maxId;
}
errors = new StringBuffer();
checkMaxUsage(conn);
checkVmUsage(conn);
checkVolumeUsage(conn);
checkTemplateISOUsage(conn);
checkSnapshotUsage(conn);
FileWriter fstream;
try {
fstream = new FileWriter(lastCheckFile);
BufferedWriter out = new BufferedWriter(fstream);
out.write(""+maxId);
out.close();
} catch (IOException e) {
// Error while writing last check id
}
return errors.toString();
}
public static void main(String args[]){
UsageSanityChecker usc = new UsageSanityChecker();
String sanityErrors;
try {
sanityErrors = usc.runSanityCheck();
if(sanityErrors.length() > 0){
System.out.println(sanityErrors.toString());
}
} catch (SQLException e) {
e.printStackTrace();
}
}
}