Unable to use JIRA due to FileNotFoundException - Read-only file system
Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.
Note that this KB was created for the Data Center version of the product. Data Center KBs for non-Data-Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Symptoms
Attempting to use displays the error "An internal server error occurred when requested resource".
The following appears in the atlassian-jira.log:
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com.atlassian.jira.util.RuntimeIOException: java.io.FileNotFoundException: /app/jira/pegasus-attack-vector-go/caches/indexes/issues/segments_mns (Read-only file system)
at com.atlassian.jira.index.WriterWrapper.commit(WriterWrapper.java:97)
at com.atlassian.jira.index.DefaultIndexEngine$WriterReference.commit(DefaultIndexEngine.java:224)
at com.atlassian.jira.index.DefaultIndexEngine$FlushPolicy$2.commit(DefaultIndexEngine.java:59)
at com.atlassian.jira.index.DefaultIndexEngine$FlushPolicy.perform(DefaultIndexEngine.java:83)
at com.atlassian.jira.index.DefaultIndexEngine.write(DefaultIndexEngine.java:158)
at com.atlassian.jira.index.DefaultIndex.perform(DefaultIndex.java:32)
at com.atlassian.jira.index.QueueingIndex$Task.index(QueueingIndex.java:144)
at com.atlassian.jira.index.QueueingIndex$Task.run(QueueingIndex.java:125)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.io.FileNotFoundException: /app/jira/pegasus-attack-vector-go/caches/indexes/issues/segments_mns (Read-only file system)
at java.io.RandomAccessFile.open(Native Method)Cause
The operating system has marked the file system for read-only. This typically occurs when there is a filesystem consistency issue and is done to protect the integrity of the file system.
Resolution
The filesystem errors will need to be remedied - please consult with the Sys Admin and/or hosting provider for the server that JIRA is running on. This will be operating system specific, for example Ubuntu has a question on this at How to fix “sudo: unable to open … Read-only file system”? that discusses how to fix the problem.
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