Examples with FSDiskFullWriteError org.apache.cassandra.io.FSDiskFullWriteError used on opensource projects

Example 1 with FSDiskFullWriteError

use of org.apache.cassandra.io.FSDiskFullWriteError in project cassandra by apache.

the class Directories method getWriteableLocation.

/**
     * Returns a non-blacklisted data directory that _currently_ has {@code writeSize} bytes as usable space, null if
     * there is not enough space left in all directories.
     *
     * @throws FSWriteError if all directories are blacklisted.
     */
public DataDirectory getWriteableLocation(long writeSize) {
    List<DataDirectoryCandidate> candidates = new ArrayList<>();
    long totalAvailable = 0L;
    // pick directories with enough space and so that resulting sstable dirs aren't blacklisted for writes.
    boolean tooBig = false;
    for (DataDirectory dataDir : paths) {
        if (BlacklistedDirectories.isUnwritable(getLocationForDisk(dataDir))) {
            logger.trace("removing blacklisted candidate {}", dataDir.location);
            continue;
        }
        DataDirectoryCandidate candidate = new DataDirectoryCandidate(dataDir);
        // exclude directory if its total writeSize does not fit to data directory
        if (candidate.availableSpace < writeSize) {
            logger.trace("removing candidate {}, usable={}, requested={}", candidate.dataDirectory.location, candidate.availableSpace, writeSize);
            tooBig = true;
            continue;
        }
        candidates.add(candidate);
        totalAvailable += candidate.availableSpace;
    }
    if (candidates.isEmpty())
        if (tooBig)
            throw new FSDiskFullWriteError(new IOException("Insufficient disk space to write " + writeSize + " bytes"), "");
        else
            throw new FSWriteError(new IOException("All configured data directories have been blacklisted as unwritable for erroring out"), "");
    // shortcut for single data directory systems
    if (candidates.size() == 1)
        return candidates.get(0).dataDirectory;
    sortWriteableCandidates(candidates, totalAvailable);
    return pickWriteableDirectory(candidates);
}