Examples with ReadIndexStatus io.dingodb.raft.entity.ReadIndexStatus used on opensource projects

Example 1 with ReadIndexStatus

use of io.dingodb.raft.entity.ReadIndexStatus in project dingo by dingodb.

the class ReadOnlyServiceImpl method resetPendingStatusError.

private void resetPendingStatusError(final Status st) {
    this.lock.lock();
    try {
        final Iterator<List<ReadIndexStatus>> it = this.pendingNotifyStatus.values().iterator();
        while (it.hasNext()) {
            final List<ReadIndexStatus> statuses = it.next();
            for (final ReadIndexStatus status : statuses) {
                reportError(status, st);
            }
            it.remove();
        }
    } finally {
        this.lock.unlock();
    }
}

Example 2 with ReadIndexStatus

use of io.dingodb.raft.entity.ReadIndexStatus in project dingo by dingodb.

the class ReadOnlyServiceImpl method onApplied.

/**
 * Called when lastAppliedIndex updates.
 *
 * @param appliedIndex applied index
 */
@Override
public void onApplied(final long appliedIndex) {
    // TODO reuse pendingStatuses list?
    List<ReadIndexStatus> pendingStatuses = null;
    this.lock.lock();
    try {
        if (this.pendingNotifyStatus.isEmpty()) {
            return;
        }
        // Find all statuses that log index less than or equal to appliedIndex.
        final Map<Long, List<ReadIndexStatus>> statuses = this.pendingNotifyStatus.headMap(appliedIndex, true);
        if (statuses != null) {
            pendingStatuses = new ArrayList<>(statuses.size() << 1);
            final Iterator<Map.Entry<Long, List<ReadIndexStatus>>> it = statuses.entrySet().iterator();
            while (it.hasNext()) {
                final Map.Entry<Long, List<ReadIndexStatus>> entry = it.next();
                pendingStatuses.addAll(entry.getValue());
                // Remove the entry from statuses, it will also be removed in pendingNotifyStatus.
                it.remove();
            }
        }
        /*
             * Remaining pending statuses are notified by error if it is presented.
             * When the node is in error state, consider following situations:
             * 1. If commitIndex > appliedIndex, then all pending statuses should be notified by error status.
             * 2. When commitIndex == appliedIndex, there will be no more pending statuses.
             */
        if (this.error != null) {
            resetPendingStatusError(this.error.getStatus());
        }
    } finally {
        this.lock.unlock();
        if (pendingStatuses != null && !pendingStatuses.isEmpty()) {
            for (final ReadIndexStatus status : pendingStatuses) {
                notifySuccess(status);
            }
        }
    }
}