Examples with TabletServers org.apache.accumulo.monitor.rest.tservers.TabletServers used on opensource projects

Example 1 with TabletServers

use of org.apache.accumulo.monitor.rest.tservers.TabletServers in project accumulo by apache.

the class TablesResource method getParticipatingTabletServers.

/**
 * Generates a list of participating tservers for a table
 *
 * @param tableIdStr
 *          Table ID to find participating tservers
 * @return List of participating tservers
 */
@Path("{tableId}")
@GET
public TabletServers getParticipatingTabletServers(@PathParam("tableId") @NotNull @Pattern(regexp = ALPHA_NUM_REGEX_TABLE_ID) String tableIdStr) {
    Instance instance = Monitor.getContext().getInstance();
    Table.ID tableId = Table.ID.of(tableIdStr);
    TabletServers tabletServers = new TabletServers(Monitor.getMmi().tServerInfo.size());
    if (StringUtils.isBlank(tableIdStr)) {
        return tabletServers;
    }
    TreeSet<String> locs = new TreeSet<>();
    if (RootTable.ID.equals(tableId)) {
        locs.add(instance.getRootTabletLocation());
    } else {
        String systemTableName = MetadataTable.ID.equals(tableId) ? RootTable.NAME : MetadataTable.NAME;
        MetaDataTableScanner scanner = new MetaDataTableScanner(Monitor.getContext(), new Range(KeyExtent.getMetadataEntry(tableId, new Text()), KeyExtent.getMetadataEntry(tableId, null)), systemTableName);
        while (scanner.hasNext()) {
            TabletLocationState state = scanner.next();
            if (state.current != null) {
                try {
                    locs.add(state.current.hostPort());
                } catch (Exception ex) {
                    scanner.close();
                    return tabletServers;
                }
            }
        }
        scanner.close();
    }
    List<TabletServerStatus> tservers = new ArrayList<>();
    if (Monitor.getMmi() != null) {
        for (TabletServerStatus tss : Monitor.getMmi().tServerInfo) {
            try {
                if (tss.name != null && locs.contains(tss.name))
                    tservers.add(tss);
            } catch (Exception ex) {
                return tabletServers;
            }
        }
    }
    // Adds tservers to the list
    for (TabletServerStatus status : tservers) {
        if (status == null)
            status = NO_STATUS;
        TableInfo summary = TableInfoUtil.summarizeTableStats(status);
        if (tableId != null)
            summary = status.tableMap.get(tableId.canonicalID());
        if (summary == null)
            continue;
        TabletServer tabletServerInfo = new TabletServer();
        tabletServerInfo.updateTabletServerInfo(status, summary);
        tabletServers.addTablet(tabletServerInfo);
    }
    return tabletServers;
}