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From abhinandanprateek <...@git.apache.org>
Subject [GitHub] cloudstack pull request #1765: Cloudstack 9586: When using local storage wit...
Date Thu, 17 Nov 2016 06:29:30 GMT
Github user abhinandanprateek commented on a diff in the pull request:

    https://github.com/apache/cloudstack/pull/1765#discussion_r88393320
  
    --- Diff: plugins/hypervisors/xenserver/src/com/cloud/hypervisor/xenserver/resource/Xenserver625StorageProcessor.java
---
    @@ -100,36 +100,25 @@ protected SR createFileSR(final Connection conn, final String path)
{
             PBD pbd = null;
     
             try {
    -            final String srname = hypervisorResource.getHost().getUuid() + path.trim();
    -
    -            final Set<SR> srs = SR.getByNameLabel(conn, srname);
    -
    -            if (srs != null && !srs.isEmpty()) {
    -                return srs.iterator().next();
    +            final String srname = path.trim();
    +            synchronized (srname.intern()) {
    +                final Set<SR> srs = SR.getByNameLabel(conn, srname);
    +                if (srs != null && !srs.isEmpty()) {
    +                    return srs.iterator().next();
    +                }
    +                final Map<String, String> smConfig = new HashMap<String, String>();
    +                final Host host = Host.getByUuid(conn, hypervisorResource.getHost().getUuid());
    +                final String uuid = UUID.randomUUID().toString();
    +                sr = SR.introduce(conn, uuid, srname, srname, "file", "file", false,
smConfig);
    +                final PBD.Record record = new PBD.Record();
    +                record.host = host;
    +                record.SR = sr;
    +                smConfig.put("location", path);
    +                record.deviceConfig = smConfig;
    +                pbd = PBD.create(conn, record);
    +                pbd.plug(conn);
    +                sr.scan(conn);
    --- End diff --
    
    The block as a whole needs synchronization as at the start presence of a SR is checked
and the last call in the block creates one on the xen pool.


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