[jira] [Created] (IGNITE-15403) Eliminate excessive storage directories creation for table partitions

["Alexander Lapin (Jira)" <ji...@apache.org>]

Alexander Lapin created IGNITE-15403:
----------------------------------------

             Summary: Eliminate excessive storage directories creation for table partitions
                 Key: IGNITE-15403
                 URL: https://issues.apache.org/jira/browse/IGNITE-15403
             Project: Ignite
          Issue Type: Bug
            Reporter: Alexander Lapin
            Assignee: Alexander Lapin


It's requited to create and resolve directories for storage only if a local node hosts partition raft node:

 
{code:java}
if (nodes.stream().map(ClusterNode::name).collect(Collectors.toSet()).contains(locNodeName))
{code}
However, at this moment it's ignored and storage directory will be created on every node:

 

 
{code:java}
private void createTableLocally(
    String name,
    UUID tblId,
    List<List<ClusterNode>> assignment,
    SchemaRegistry schemaReg
) {
    int partitions = assignment.size();

    var partitionsGroupsFutures = new ArrayList<CompletableFuture<RaftGroupService>>();

    Path storageDir = partitionsStoreDir.resolve(name);

    try {
        Files.createDirectories(storageDir);
    } catch (IOException e) {
        throw new IgniteInternalException(
            "Failed to create partitions store directory for " + name + ": " + e.getMessage(),
            e
        );
    }

    for (int p = 0; p < partitions; p++) {
        RocksDbStorage storage = new RocksDbStorage(
            storageDir.resolve(String.valueOf(p)),
            ByteBuffer::compareTo
        );
{code}
In other words, storage directory is created regardless of whether a raft node is created or not.

 



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