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

Example 1 with ConfigHistory

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

the class VarhistoryController method handleRequestImpl.

@Override
protected ModelAndView handleRequestImpl(HttpServletRequest req, HttpServletResponse resp) throws Exception {
    int status = Constants.STATUS_OK;
    String message = "OK";
    logger.info("receive url " + req.getQueryString());
    QueryParameters qps = null;
    DBInstanceInfo dbinfo = null;
    //first session check
    boolean isSessionValid = WebAppUtil.hasValidSession(req);
    if (!isSessionValid)
        return this.respondFailure("session timeout. Please logout and re-login.", req);
    qps = WebAppUtil.parseRequestParameter(req);
    qps.setSql("mysql_global_variables");
    dbinfo = this.frameworkContext.getDbInfoManager().findDB(qps.getGroup(), qps.getHost());
    if (dbinfo == null)
        return this.respondFailure("Cannot find  record for DB (" + qps.getGroup() + ", " + qps.getHost() + ")", req);
    //when we reach here, at least we have valid query and can connect to db	
    WebAppUtil.storeLastDbInfoRequest(qps.getGroup(), qps.getHost(), req);
    ModelAndView mv = null;
    ResultList rList = new ResultList();
    ColumnDescriptor desc = new ColumnDescriptor();
    desc.addColumn("VARIABLE_NAME", false, 1);
    desc.addColumn("VARIABLE_VALUE", false, 2);
    desc.addColumn("COMMENTS", false, 3);
    rList.setColumnDescriptor(desc);
    try {
        ConfigHistory ch = ConfigHistory.load(new File(new File(this.frameworkContext.getFileReposirtoryPath()), "autoscan"), dbinfo);
        if (ch != null && ch.getChanges().size() > 0) {
            {
                ResultRow row = new ResultRow();
                List<String> cols = new ArrayList<String>();
                cols.add("CHANGES");
                cols.add("");
                cols.add(ch.getStartingConfig().getTime() + " - " + ch.getLastCheckedConfig().getTime());
                row.setColumns(cols);
                row.setColumnDescriptor(desc);
                rList.addRow(row);
            }
            //list changed in reverse order
            for (int i = ch.getChanges().size() - 1; i >= 0; i--) {
                ConfigBlock cb = ch.getChanges().get(i);
                ResultRow row = new ResultRow();
                List<String> cols = new ArrayList<String>();
                cols.add("CHANGE TIME");
                cols.add(cb.getTime());
                cols.add("Timestamp (UTC) when checked");
                row.setColumns(cols);
                row.setColumnDescriptor(desc);
                rList.addRow(row);
                HashMap<String, String> changes = new HashMap<String, String>();
                //scan changes with old value
                for (Map.Entry<String, String> e : cb.getVariables().entrySet()) {
                    String key = e.getKey();
                    String val = e.getValue();
                    if (key.startsWith("+-")) {
                        changes.put(key.substring(2), val);
                    }
                }
                for (Map.Entry<String, String> e : cb.getVariables().entrySet()) {
                    String key = e.getKey();
                    String v = e.getValue();
                    row = new ResultRow();
                    cols = new ArrayList<String>();
                    if (key.startsWith("+-"))
                        //skip
                        continue;
                    else if (key.startsWith("+-"))
                        //removed
                        cols.add(key.substring(1));
                    else
                        cols.add(key);
                    cols.add(v);
                    if (changes.containsKey(key))
                        cols.add("Prev Value: " + changes.get(key));
                    else if (key.startsWith("-"))
                        cols.add("Removed");
                    else
                        cols.add("");
                    row.setColumns(cols);
                    row.setColumnDescriptor(desc);
                    rList.addRow(row);
                }
                //add an empty line
                row = new ResultRow();
                cols = new ArrayList<String>();
                cols.add("");
                cols.add("");
                cols.add("");
                row.setColumns(cols);
                row.setColumnDescriptor(desc);
                rList.addRow(row);
            }
        }
        if (ch != null) {
            ConfigBlock cb = ch.getStartingConfig();
            ResultRow row = new ResultRow();
            List<String> cols = new ArrayList<String>();
            cols.add("FIRST RECORD TIME");
            cols.add(cb.getTime());
            if (ch != null && ch.getChanges().size() > 0)
                cols.add("First Recorded Timestamp (UTC)");
            else
                cols.add("No Changes Since First Check (Timestamp UTC)");
            row.setColumns(cols);
            row.setColumnDescriptor(desc);
            rList.addRow(row);
            for (Map.Entry<String, String> e : cb.getVariables().entrySet()) {
                String key = e.getKey();
                String v = e.getValue();
                row = new ResultRow();
                cols = new ArrayList<String>();
                cols.add(key);
                cols.add(v);
                cols.add("");
                row.setColumns(cols);
                row.setColumnDescriptor(desc);
                rList.addRow(row);
            }
        } else {
            status = Constants.STATUS_BAD;
            message = "No variable configuration history has been recorded yet.";
        }
    } catch (Throwable ex) {
        logger.log(Level.SEVERE, "Exception", ex);
        status = Constants.STATUS_BAD;
        message = "Exception: " + ex.getMessage();
    }
    mv = new ModelAndView(this.jsonView);
    if (req.getParameter("callback") != null && req.getParameter("callback").trim().length() > 0)
        //YUI datasource binding
        mv.addObject("callback", req.getParameter("callback"));
    mv.addObject("json_result", ResultListUtil.toJSONString(rList, qps, status, message));
    return mv;
}

Example 2 with ConfigHistory

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

the class GlobalVariableChangeScanTask method updateConfigBlock.

private void updateConfigBlock(DBInstanceInfo db, ConfigBlock cb) {
    File root = new File(new File(this.context.getFileReposirtoryPath()), STORAGE_DIR);
    ConfigHistory ch = ConfigHistory.load(root, db);
    //a brand new 
    if (ch == null)
        ch = new ConfigHistory();
    if (//if any changes, update
    ch.updateLast(cb))
        ch.store(root, db);
}