hadoop-yarn-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Tsuyoshi OZAWA (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-2914) Potential race condition in SharedCacheUploaderMetrics/ClientSCMMetrics#getInstance()
Date Wed, 03 Dec 2014 23:54:12 GMT

     [ https://issues.apache.org/jira/browse/YARN-2914?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tsuyoshi OZAWA updated YARN-2914:
---------------------------------
    Description: 
{code}
  public static ClientSCMMetrics getInstance() {
    ClientSCMMetrics topMetrics = Singleton.INSTANCE.impl;
    if (topMetrics == null) {
      throw new IllegalStateException(
{code}
getInstance() doesn't hold lock on Singleton.this
This may result in IllegalStateException being thrown prematurely.

[~ctrezzo] reported that SharedCacheUploaderMetrics has also same kind of race condition.

  was:
{code}
  public static ClientSCMMetrics getInstance() {
    ClientSCMMetrics topMetrics = Singleton.INSTANCE.impl;
    if (topMetrics == null) {
      throw new IllegalStateException(
{code}
getInstance() doesn't hold lock on Singleton.this
This may result in IllegalStateException being thrown prematurely.


> Potential race condition in SharedCacheUploaderMetrics/ClientSCMMetrics#getInstance()
> -------------------------------------------------------------------------------------
>
>                 Key: YARN-2914
>                 URL: https://issues.apache.org/jira/browse/YARN-2914
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 2.6.0
>            Reporter: Ted Yu
>            Assignee: Varun Saxena
>            Priority: Minor
>             Fix For: 2.7.0
>
>         Attachments: YARN-2914.patch
>
>
> {code}
>   public static ClientSCMMetrics getInstance() {
>     ClientSCMMetrics topMetrics = Singleton.INSTANCE.impl;
>     if (topMetrics == null) {
>       throw new IllegalStateException(
> {code}
> getInstance() doesn't hold lock on Singleton.this
> This may result in IllegalStateException being thrown prematurely.
> [~ctrezzo] reported that SharedCacheUploaderMetrics has also same kind of race condition.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message