Examples with ProcessListEntry com.yahoo.dba.perf.myperf.common.ProcessListEntry used on opensource projects

Example 1 with ProcessListEntry

use of com.yahoo.dba.perf.myperf.common.ProcessListEntry in project mysql_perf_analyzer by yahoo.

the class AlertReportRunner method run.

@Override
public void run() {
    AlertEntry alertEntry = new AlertEntry(timestamp, alertReason, alertValue, dbInfo.getDbGroupName(), dbInfo.getHostName());
    this.context.getAlerts().addAlert(alertEntry);
    ResultSet rs = null;
    Statement stmt = null;
    long reportTimestamp = System.currentTimeMillis();
    List<ProcessListEntry> prList = new ArrayList<ProcessListEntry>();
    java.util.LinkedHashMap<String, String> repMap = new java.util.LinkedHashMap<String, String>();
    String innodbStatus = null;
    ResultList rList = null;
    ResultList clientList = null;
    try {
        stmt = connection.getConnection().createStatement();
        stmt.setFetchSize(5000);
        //stmt.setMaxRows(5000);
        //rs = stmt.executeQuery("select * from information_schema.processlist limit 5000");
        //remove limit to handle the case of very large connections
        rs = stmt.executeQuery("select * from information_schema.processlist");
        boolean hasRowInfo = rs != null && hasRowInfo(rs);
        boolean hasRowRead = rs != null && hasRowsRead(rs);
        while (rs != null && rs.next()) {
            ProcessListEntry ps = new ProcessListEntry(rs, hasRowInfo, hasRowRead);
            prList.add(ps);
        }
        if ("REPLLAG".equalsIgnoreCase(this.alertReason) || "REPLDOWN".equalsIgnoreCase(this.alertReason)) {
            DBUtils.close(rs);
            rs = stmt.executeQuery("show slave status");
            int i = 0;
            int cnt = rs.getMetaData().getColumnCount();
            while (rs != null && rs.next()) {
                String suffix = "";
                if (i > 0)
                    suffix = "_" + i;
                for (int k = 0; k < cnt; k++) repMap.put(rs.getMetaData().getColumnName(k + 1) + suffix, rs.getString(k + 1));
                i++;
            }
        }
        //if ("CPU".equalsIgnoreCase(alertReason) ||"THREAD".equalsIgnoreCase(alertReason)||"REPLLAG".equalsIgnoreCase(this.alertReason))
        {
            DBUtils.close(rs);
            rs = stmt.executeQuery("show engine innodb status");
            if (rs != null && rs.next()) {
                innodbStatus = rs.getString("Status");
            }
            DBUtils.close(rs);
            rs = stmt.executeQuery("select * from information_schema.innodb_locks");
            if (rs != null) {
                rList = ResultListUtil.fromSqlResultSet(rs, 5000);
            }
        }
        //TODO we need two snapshot to get useful data			
        if ("CONNECT_FAILURE".equalsIgnoreCase(alertReason)) {
            //dump summary of processlist if possible
            String sql = "select user, host, command, count(*) conns from information_schema.processlist group by user, host, command";
            DBUtils.close(rs);
            rs = stmt.executeQuery(sql);
            if (rs != null) {
                clientList = ResultListUtil.fromSqlResultSet(rs, 5000);
            }
            DBUtils.close(rs);
        }
    } catch (Exception ex) {
        logger.log(Level.WARNING, "Error when retrieve alert detail", ex);
    } finally {
        DBUtils.close(rs);
        DBUtils.close(stmt);
    }
    if (prList.size() > 0 || repMap.size() > 0) {
        //sort by sql text
        java.util.Collections.sort(prList);
        ProcessListSummary prSum = new ProcessListSummary();
        prSum.setProcessList(prList);
        prSum.setInnodbStatus(innodbStatus);
        prSum.setLockList(rList);
        //prSum.setClientList(clientList);
        prSum.setReportTimestamp(reportTimestamp);
        prSum.summarize();
        AlertReport ar = this.context.createAlertReport(reportTimestamp, alertEntry);
        ar.setProcessListSummary(prSum);
        if (repMap.size() > 0)
            ar.setReplicationSummary(repMap);
        ar.saveAsText();
    }
    if (this.dbInfo.isAlertEnabled())
        this.context.emailAlert(alertEntry);
}