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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-7068) change BlobService sub-classes for permanent and transient BLOBs
Date Wed, 06 Sep 2017 15:55:01 GMT

    [ https://issues.apache.org/jira/browse/FLINK-7068?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16155568#comment-16155568
] 

ASF GitHub Bot commented on FLINK-7068:
---------------------------------------

Github user tillrohrmann commented on a diff in the pull request:

    https://github.com/apache/flink/pull/4358#discussion_r137292784
  
    --- Diff: flink-runtime/src/main/java/org/apache/flink/runtime/blob/TransientBlobService.java
---
    @@ -0,0 +1,171 @@
    +/*
    + * Licensed to the Apache Software Foundation (ASF) under one
    + * or more contributor license agreements.  See the NOTICE file
    + * distributed with this work for additional information
    + * regarding copyright ownership.  The ASF licenses this file
    + * to you under the Apache License, Version 2.0 (the
    + * "License"); you may not use this file except in compliance
    + * with the License.  You may obtain a copy of the License at
    + *
    + *     http://www.apache.org/licenses/LICENSE-2.0
    + *
    + * Unless required by applicable law or agreed to in writing, software
    + * distributed under the License is distributed on an "AS IS" BASIS,
    + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    + * See the License for the specific language governing permissions and
    + * limitations under the License.
    + */
    +
    +package org.apache.flink.runtime.blob;
    +
    +import org.apache.flink.api.common.JobID;
    +
    +import java.io.Closeable;
    +import java.io.File;
    +import java.io.IOException;
    +import java.io.InputStream;
    +
    +/**
    + * A service to retrieve transient binary large objects (BLOBs).
    + * <p>
    + * These include per-job BLOBs that are , e.g. a job's JAR files, parts of an off-loaded
{@link
    --- End diff --
    
    I thought that job's JAR files are stored in the permanent blob service?


> change BlobService sub-classes for permanent and transient BLOBs
> ----------------------------------------------------------------
>
>                 Key: FLINK-7068
>                 URL: https://issues.apache.org/jira/browse/FLINK-7068
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Distributed Coordination, Network
>    Affects Versions: 1.4.0
>            Reporter: Nico Kruber
>            Assignee: Nico Kruber
>
> A {{PermanentBlobStore}} should resemble use cases for BLOBs that are permanently stored
for a job's life time (HA and non-HA).
> A {{TransientBlobStore}} should reflect BLOB offloading for logs, RPC, etc. which even
does not have to be reflected by files.



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