[jira] [Assigned] (SPARK-9968) BlockGenerator lock structure can cause lock starvation of the block updating thread
[ https://issues.apache.org/jira/browse/SPARK-9968?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Apache Spark reassigned SPARK-9968: --- Assignee: Apache Spark (was: Tathagata Das) BlockGenerator lock structure can cause lock starvation of the block updating thread Key: SPARK-9968 URL: https://issues.apache.org/jira/browse/SPARK-9968 Project: Spark Issue Type: Sub-task Components: Streaming Reporter: Tathagata Das Assignee: Apache Spark When the rate limiter is actually limiting the rate at which data is inserted into the buffer, the synchronized block of BlockGenerator.addData stays blocked for long time. This causes the thread switching the buffer and generating blocks (synchronized with addData) to starve and not generate blocks for seconds. The correct solution is to not block on the rate limiter within the synchronized block for adding data to the buffer. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
[jira] [Assigned] (SPARK-9968) BlockGenerator lock structure can cause lock starvation of the block updating thread
[ https://issues.apache.org/jira/browse/SPARK-9968?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Apache Spark reassigned SPARK-9968: --- Assignee: Tathagata Das (was: Apache Spark) BlockGenerator lock structure can cause lock starvation of the block updating thread Key: SPARK-9968 URL: https://issues.apache.org/jira/browse/SPARK-9968 Project: Spark Issue Type: Sub-task Components: Streaming Reporter: Tathagata Das Assignee: Tathagata Das When the rate limiter is actually limiting the rate at which data is inserted into the buffer, the synchronized block of BlockGenerator.addData stays blocked for long time. This causes the thread switching the buffer and generating blocks (synchronized with addData) to starve and not generate blocks for seconds. The correct solution is to not block on the rate limiter within the synchronized block for adding data to the buffer. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
