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    The heap space allocated to the Cassandra node ran out due to high load and low memory allocation. The surefire solution is to increase the amount of RAM given to the Cassandra process (determined by the launcher script and the total memory in the system).

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via YouTrack by Unknown author, 2 years ago
via GitHub by jgm1986
, 1 year ago
Java heap space
via Google Groups by Paul, 9 months ago
via Google Groups by wezzax, 8 months ago
java.lang.OutOfMemoryError: Java heap space	at java.nio.HeapByteBuffer.(HeapByteBuffer.java:39)	at java.nio.ByteBuffer.allocate(ByteBuffer.java:312)	at sun.nio.cs.StreamEncoder.(StreamEncoder.java:176)	at sun.nio.cs.StreamEncoder.(StreamEncoder.java:156)	at sun.nio.cs.StreamEncoder.forOutputStreamWriter(StreamEncoder.java:40)	at java.io.OutputStreamWriter.(OutputStreamWriter.java:83)	at com.ahsay.obs.xf.FT(Unknown Source)	at com.ahsay.obs.zf.RT(Unknown Source)	at com.ahsay.obs.zf.run(Unknown Source)	at java.lang.Thread.run(Thread.java:619)