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Posted to commits@accumulo.apache.org by ct...@apache.org on 2022/09/01 21:05:58 UTC
[accumulo] branch main updated: Mark FileSystemMonitor as deprecated and slated for 3.0 removal (#2909)
This is an automated email from the ASF dual-hosted git repository.
ctubbsii pushed a commit to branch main
in repository https://gitbox.apache.org/repos/asf/accumulo.git
The following commit(s) were added to refs/heads/main by this push:
new 3a29c2ed7c Mark FileSystemMonitor as deprecated and slated for 3.0 removal (#2909)
3a29c2ed7c is described below
commit 3a29c2ed7c8eab7700c8f341e24feddb64ebcb59
Author: EdColeman <de...@etcoleman.com>
AuthorDate: Thu Sep 1 21:05:52 2022 +0000
Mark FileSystemMonitor as deprecated and slated for 3.0 removal (#2909)
* mark FileSystemMonitor as deprecated and slated for 3.0 removal
* Remove unnecessary second boolean check on property (avoids passing
property when not needed)
* Use local variable to narrow the warning suppression to just the
variable and not the whole method
* IDE also replaced anonymous inner class with lambda
Co-authored-by: Christopher Tubbs <ct...@apache.org>
---
.../org/apache/accumulo/core/conf/Property.java | 1 +
.../accumulo/server/util/FileSystemMonitor.java | 29 ++++++++--------------
.../org/apache/accumulo/tserver/TabletServer.java | 7 +++++-
3 files changed, 18 insertions(+), 19 deletions(-)
diff --git a/core/src/main/java/org/apache/accumulo/core/conf/Property.java b/core/src/main/java/org/apache/accumulo/core/conf/Property.java
index 577300b769..8c65e4432b 100644
--- a/core/src/main/java/org/apache/accumulo/core/conf/Property.java
+++ b/core/src/main/java/org/apache/accumulo/core/conf/Property.java
@@ -703,6 +703,7 @@ public enum Property {
"The number of concurrent threads that will load bloom filters in the background. "
+ "Setting this to zero will make bloom filters load in the foreground.",
"1.3.5"),
+ @Deprecated(since = "2.1.0", forRemoval = true)
TSERV_MONITOR_FS("tserver.monitor.fs", "false", PropertyType.BOOLEAN,
"When enabled the tserver will monitor file systems and kill itself when"
+ " one switches from rw to ro. This is usually and indication that Linux has"
diff --git a/server/base/src/main/java/org/apache/accumulo/server/util/FileSystemMonitor.java b/server/base/src/main/java/org/apache/accumulo/server/util/FileSystemMonitor.java
index 332f7c66de..c62c9bea30 100644
--- a/server/base/src/main/java/org/apache/accumulo/server/util/FileSystemMonitor.java
+++ b/server/base/src/main/java/org/apache/accumulo/server/util/FileSystemMonitor.java
@@ -31,7 +31,6 @@ import java.util.Map;
import java.util.Set;
import org.apache.accumulo.core.conf.AccumuloConfiguration;
-import org.apache.accumulo.core.conf.Property;
import org.apache.accumulo.core.util.Halt;
import org.apache.accumulo.core.util.threads.ThreadPools;
import org.apache.accumulo.core.util.threads.Threads;
@@ -121,12 +120,8 @@ public class FileSystemMonitor {
try {
checkMount(mount);
} catch (final Exception e) {
- Halt.halt(-42, new Runnable() {
- @Override
- public void run() {
- log.error("Exception while checking mount points, halting process", e);
- }
- });
+ Halt.halt(-42,
+ () -> log.error("Exception while checking mount points, halting process", e));
}
}));
}
@@ -145,18 +140,16 @@ public class FileSystemMonitor {
throw new Exception("Filesystem " + mount.mountPoint + " switched to read only");
}
- public static void start(AccumuloConfiguration conf, Property prop) {
- if (conf.getBoolean(prop)) {
- if (new File(PROC_MOUNTS).exists()) {
- try {
- new FileSystemMonitor(PROC_MOUNTS, 60000, conf);
- log.info("Filesystem monitor started");
- } catch (IOException e) {
- log.error("Failed to initialize file system monitor", e);
- }
- } else {
- log.info("Not monitoring filesystems, " + PROC_MOUNTS + " does not exists");
+ public static void start(AccumuloConfiguration conf) {
+ if (new File(PROC_MOUNTS).exists()) {
+ try {
+ new FileSystemMonitor(PROC_MOUNTS, 60000, conf);
+ log.info("Filesystem monitor started");
+ } catch (IOException e) {
+ log.error("Failed to initialize file system monitor", e);
}
+ } else {
+ log.info("Not monitoring filesystems, " + PROC_MOUNTS + " does not exists");
}
}
}
diff --git a/server/tserver/src/main/java/org/apache/accumulo/tserver/TabletServer.java b/server/tserver/src/main/java/org/apache/accumulo/tserver/TabletServer.java
index d15b27ae57..239f3ef91a 100644
--- a/server/tserver/src/main/java/org/apache/accumulo/tserver/TabletServer.java
+++ b/server/tserver/src/main/java/org/apache/accumulo/tserver/TabletServer.java
@@ -1048,7 +1048,12 @@ public class TabletServer extends AbstractServer implements TabletHostingServer
final AccumuloConfiguration aconf = getConfiguration();
- FileSystemMonitor.start(aconf, Property.TSERV_MONITOR_FS);
+ @SuppressWarnings("removal")
+ Property TSERV_MONITOR_FS = Property.TSERV_MONITOR_FS;
+ if (aconf.getBoolean(TSERV_MONITOR_FS)) {
+ log.warn("{} is deprecated and marked for removal.", TSERV_MONITOR_FS.getKey());
+ FileSystemMonitor.start(aconf);
+ }
Runnable gcDebugTask = () -> gcLogger.logGCInfo(getConfiguration());