[jira] [Commented] (HBASE-18847) Remove unneeded synchronized block from hfilev2 warning in branch-1.2
[
https://issues.apache.org/jira/browse/HBASE-18847?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16176814#comment-16176814
]
Rich Howarth commented on HBASE-18847:
--
No problem. Thanks to Sean for helping me get set up
> Remove unneeded synchronized block from hfilev2 warning in branch-1.2
> -
>
> Key: HBASE-18847
> URL: https://issues.apache.org/jira/browse/HBASE-18847
> Project: HBase
> Issue Type: Bug
> Components: Performance
>Affects Versions: 1.2.0, 1.2.1, 1.2.2, 1.2.3, 1.2.4, 1.2.5, 1.2.6
>Reporter: Rich Howarth
>Assignee: Rich Howarth
>Priority: Critical
> Fix For: 1.2.7
>
> Attachments: HBASE-18847-branch-1.2-00.patch
>
>
> The below code block starts at line 277 of HFileWriterV2.java. Class-level
> synchronization in a heavily used code path has a demonstrably significant
> negative effect on performance. I tested forcing a major compaction with 18
> compaction threads per node; removing the synchronization resulted in an
> order of magnitude performance increase, with the bottleneck then being at
> the disks (where I want it to be).
> {code:java}
> synchronized (HFileWriterV2.class) {
> if (WARN_CELL_WITH_TAGS && getFileContext().isIncludesTags()) {
> LOG.warn("A minimum HFile version of " +
> HFile.MIN_FORMAT_VERSION_WITH_TAGS
> + " is required to support cell attributes/tags. Consider setting "
> + HFile.FORMAT_VERSION_KEY + " accordingly.");
> WARN_CELL_WITH_TAGS = false;
> }
> }
> {code}
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[jira] [Updated] (HBASE-18847) remove unneeded synchronized block from hfilev2 warning in branch-1.2
[
https://issues.apache.org/jira/browse/HBASE-18847?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Rich Howarth updated HBASE-18847:
-
Status: Patch Available (was: Open)
> remove unneeded synchronized block from hfilev2 warning in branch-1.2
> -
>
> Key: HBASE-18847
> URL: https://issues.apache.org/jira/browse/HBASE-18847
> Project: HBase
> Issue Type: Bug
> Components: Performance
>Affects Versions: 1.2.6, 1.2.5, 1.2.4, 1.2.3, 1.2.2, 1.2.1, 1.2.0
>Reporter: Rich Howarth
>Assignee: Rich Howarth
>Priority: Critical
> Fix For: 1.2.7
>
> Attachments: HBASE-18847-branch-1.2-00.patch
>
>
> The below code block starts at line 277 of HFileWriterV2.java. Class-level
> synchronization in a heavily used code path has a demonstrably significant
> negative effect on performance. I tested forcing a major compaction with 18
> compaction threads per node; removing the synchronization resulted in an
> order of magnitude performance increase, with the bottleneck then being at
> the disks (where I want it to be).
> {code:java}
> synchronized (HFileWriterV2.class) {
> if (WARN_CELL_WITH_TAGS && getFileContext().isIncludesTags()) {
> LOG.warn("A minimum HFile version of " +
> HFile.MIN_FORMAT_VERSION_WITH_TAGS
> + " is required to support cell attributes/tags. Consider setting "
> + HFile.FORMAT_VERSION_KEY + " accordingly.");
> WARN_CELL_WITH_TAGS = false;
> }
> }
> {code}
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[jira] [Updated] (HBASE-18847) remove unneeded synchronized block from hfilev2 warning in branch-1.2
[
https://issues.apache.org/jira/browse/HBASE-18847?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Rich Howarth updated HBASE-18847:
-
Attachment: HBASE-18847-branch-1.2-00.patch
> remove unneeded synchronized block from hfilev2 warning in branch-1.2
> -
>
> Key: HBASE-18847
> URL: https://issues.apache.org/jira/browse/HBASE-18847
> Project: HBase
> Issue Type: Bug
> Components: Performance
>Affects Versions: 1.2.0, 1.2.1, 1.2.2, 1.2.3, 1.2.4, 1.2.5, 1.2.6
>Reporter: Rich Howarth
>Assignee: Rich Howarth
>Priority: Critical
> Fix For: 1.2.7
>
> Attachments: HBASE-18847-branch-1.2-00.patch
>
>
> The below code block starts at line 277 of HFileWriterV2.java. Class-level
> synchronization in a heavily used code path has a demonstrably significant
> negative effect on performance. I tested forcing a major compaction with 18
> compaction threads per node; removing the synchronization resulted in an
> order of magnitude performance increase, with the bottleneck then being at
> the disks (where I want it to be).
> {code:java}
> synchronized (HFileWriterV2.class) {
> if (WARN_CELL_WITH_TAGS && getFileContext().isIncludesTags()) {
> LOG.warn("A minimum HFile version of " +
> HFile.MIN_FORMAT_VERSION_WITH_TAGS
> + " is required to support cell attributes/tags. Consider setting "
> + HFile.FORMAT_VERSION_KEY + " accordingly.");
> WARN_CELL_WITH_TAGS = false;
> }
> }
> {code}
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[jira] [Updated] (HBASE-18847) remove unneeded synchronized block from hfilev2 warning in branch-1.2
[
https://issues.apache.org/jira/browse/HBASE-18847?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Rich Howarth updated HBASE-18847:
-
Status: Open (was: Patch Available)
> remove unneeded synchronized block from hfilev2 warning in branch-1.2
> -
>
> Key: HBASE-18847
> URL: https://issues.apache.org/jira/browse/HBASE-18847
> Project: HBase
> Issue Type: Bug
> Components: Performance
>Affects Versions: 1.2.6, 1.2.5, 1.2.4, 1.2.3, 1.2.2, 1.2.1, 1.2.0
>Reporter: Rich Howarth
>Assignee: Rich Howarth
>Priority: Critical
> Fix For: 1.2.7
>
>
> The below code block starts at line 277 of HFileWriterV2.java. Class-level
> synchronization in a heavily used code path has a demonstrably significant
> negative effect on performance. I tested forcing a major compaction with 18
> compaction threads per node; removing the synchronization resulted in an
> order of magnitude performance increase, with the bottleneck then being at
> the disks (where I want it to be).
> {code:java}
> synchronized (HFileWriterV2.class) {
> if (WARN_CELL_WITH_TAGS && getFileContext().isIncludesTags()) {
> LOG.warn("A minimum HFile version of " +
> HFile.MIN_FORMAT_VERSION_WITH_TAGS
> + " is required to support cell attributes/tags. Consider setting "
> + HFile.FORMAT_VERSION_KEY + " accordingly.");
> WARN_CELL_WITH_TAGS = false;
> }
> }
> {code}
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[jira] [Updated] (HBASE-18847) remove unneeded synchronized block from hfilev2 warning in branch-1.2
[
https://issues.apache.org/jira/browse/HBASE-18847?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Rich Howarth updated HBASE-18847:
-
Attachment: (was: HBASE-18847.v1.patch)
> remove unneeded synchronized block from hfilev2 warning in branch-1.2
> -
>
> Key: HBASE-18847
> URL: https://issues.apache.org/jira/browse/HBASE-18847
> Project: HBase
> Issue Type: Bug
> Components: Performance
>Affects Versions: 1.2.0, 1.2.1, 1.2.2, 1.2.3, 1.2.4, 1.2.5, 1.2.6
>Reporter: Rich Howarth
>Assignee: Rich Howarth
>Priority: Critical
> Fix For: 1.2.7
>
>
> The below code block starts at line 277 of HFileWriterV2.java. Class-level
> synchronization in a heavily used code path has a demonstrably significant
> negative effect on performance. I tested forcing a major compaction with 18
> compaction threads per node; removing the synchronization resulted in an
> order of magnitude performance increase, with the bottleneck then being at
> the disks (where I want it to be).
> {code:java}
> synchronized (HFileWriterV2.class) {
> if (WARN_CELL_WITH_TAGS && getFileContext().isIncludesTags()) {
> LOG.warn("A minimum HFile version of " +
> HFile.MIN_FORMAT_VERSION_WITH_TAGS
> + " is required to support cell attributes/tags. Consider setting "
> + HFile.FORMAT_VERSION_KEY + " accordingly.");
> WARN_CELL_WITH_TAGS = false;
> }
> }
> {code}
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[jira] [Updated] (HBASE-18847) remove unneeded synchronized block from hfilev2 warning in branch-1.2
[
https://issues.apache.org/jira/browse/HBASE-18847?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Rich Howarth updated HBASE-18847:
-
Status: Patch Available (was: Open)
> remove unneeded synchronized block from hfilev2 warning in branch-1.2
> -
>
> Key: HBASE-18847
> URL: https://issues.apache.org/jira/browse/HBASE-18847
> Project: HBase
> Issue Type: Bug
> Components: Performance
>Affects Versions: 1.2.6, 1.2.5, 1.2.4, 1.2.3, 1.2.2, 1.2.1, 1.2.0
>Reporter: Rich Howarth
>Assignee: Rich Howarth
>Priority: Critical
> Fix For: 1.2.7
>
> Attachments: HBASE-18847.v1.patch
>
>
> The below code block starts at line 277 of HFileWriterV2.java. Class-level
> synchronization in a heavily used code path has a demonstrably significant
> negative effect on performance. I tested forcing a major compaction with 18
> compaction threads per node; removing the synchronization resulted in an
> order of magnitude performance increase, with the bottleneck then being at
> the disks (where I want it to be).
> {code:java}
> synchronized (HFileWriterV2.class) {
> if (WARN_CELL_WITH_TAGS && getFileContext().isIncludesTags()) {
> LOG.warn("A minimum HFile version of " +
> HFile.MIN_FORMAT_VERSION_WITH_TAGS
> + " is required to support cell attributes/tags. Consider setting "
> + HFile.FORMAT_VERSION_KEY + " accordingly.");
> WARN_CELL_WITH_TAGS = false;
> }
> }
> {code}
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[jira] [Updated] (HBASE-18847) remove unneeded synchronized block from hfilev2 warning in branch-1.2
[
https://issues.apache.org/jira/browse/HBASE-18847?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Rich Howarth updated HBASE-18847:
-
Attachment: HBASE-18847.v1.patch
> remove unneeded synchronized block from hfilev2 warning in branch-1.2
> -
>
> Key: HBASE-18847
> URL: https://issues.apache.org/jira/browse/HBASE-18847
> Project: HBase
> Issue Type: Bug
> Components: Performance
>Affects Versions: 1.2.0, 1.2.1, 1.2.2, 1.2.3, 1.2.4, 1.2.5, 1.2.6
>Reporter: Rich Howarth
>Assignee: Rich Howarth
>Priority: Critical
> Fix For: 1.2.7
>
> Attachments: HBASE-18847.v1.patch
>
>
> The below code block starts at line 277 of HFileWriterV2.java. Class-level
> synchronization in a heavily used code path has a demonstrably significant
> negative effect on performance. I tested forcing a major compaction with 18
> compaction threads per node; removing the synchronization resulted in an
> order of magnitude performance increase, with the bottleneck then being at
> the disks (where I want it to be).
> {code:java}
> synchronized (HFileWriterV2.class) {
> if (WARN_CELL_WITH_TAGS && getFileContext().isIncludesTags()) {
> LOG.warn("A minimum HFile version of " +
> HFile.MIN_FORMAT_VERSION_WITH_TAGS
> + " is required to support cell attributes/tags. Consider setting "
> + HFile.FORMAT_VERSION_KEY + " accordingly.");
> WARN_CELL_WITH_TAGS = false;
> }
> }
> {code}
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[jira] [Commented] (HBASE-18847) Huge performance bottleneck in HFileWriterV2 in 1.2.6
[
https://issues.apache.org/jira/browse/HBASE-18847?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16171752#comment-16171752
]
Rich Howarth commented on HBASE-18847:
--
Agreed, that's what I have in my local patch at the moment
> Huge performance bottleneck in HFileWriterV2 in 1.2.6
> -
>
> Key: HBASE-18847
> URL: https://issues.apache.org/jira/browse/HBASE-18847
> Project: HBase
> Issue Type: Improvement
> Components: Performance
>Affects Versions: 1.2.6
>Reporter: Rich Howarth
>Priority: Critical
>
> The below code block starts at line 277 of HFileWriterV2.java. Class-level
> synchronization in a heavily used code path has a demonstrably significant
> negative effect on performance. I tested forcing a major compaction with 18
> compaction threads per node; removing the synchronization resulted in an
> order of magnitude performance increase, with the bottleneck then being at
> the disks (where I want it to be).
> {code:java}
> synchronized (HFileWriterV2.class) {
> if (WARN_CELL_WITH_TAGS && getFileContext().isIncludesTags()) {
> LOG.warn("A minimum HFile version of " +
> HFile.MIN_FORMAT_VERSION_WITH_TAGS
> + " is required to support cell attributes/tags. Consider setting "
> + HFile.FORMAT_VERSION_KEY + " accordingly.");
> WARN_CELL_WITH_TAGS = false;
> }
> }
> {code}
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[jira] [Updated] (HBASE-18847) Huge performance bottleneck in HFileWriterV2 in 1.2.6
[
https://issues.apache.org/jira/browse/HBASE-18847?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Rich Howarth updated HBASE-18847:
-
Description:
The below code block starts at line 277 of HFileWriterV2.java. Class-level
synchronization in a heavily used code path has a demonstrably significant
negative effect on performance. I tested forcing a major compaction with 18
compaction threads per node; removing the synchronization resulted in an order
of magnitude performance increase, with the bottleneck then being at the disks
(where I want it to be).
{code:java}
synchronized (HFileWriterV2.class) {
if (WARN_CELL_WITH_TAGS && getFileContext().isIncludesTags()) {
LOG.warn("A minimum HFile version of " +
HFile.MIN_FORMAT_VERSION_WITH_TAGS
+ " is required to support cell attributes/tags. Consider setting "
+ HFile.FORMAT_VERSION_KEY + " accordingly.");
WARN_CELL_WITH_TAGS = false;
}
}
{code}
was:
The below code block starts at line 277 of HFileWriterV2.java. Class-level
synchronization in a heavily used code path has a demonstrably significant
negative effect on performance. I tested forcing a major compaction with 18
compaction threads per node; removing the synchronization resulted in an order
of magnitude performance increase, with the bottleneck then being at the disks
(where I want it to be).
synchronized (HFileWriterV2.class) {
if (WARN_CELL_WITH_TAGS && getFileContext().isIncludesTags()) {
LOG.warn("A minimum HFile version of " +
HFile.MIN_FORMAT_VERSION_WITH_TAGS
+ " is required to support cell attributes/tags. Consider setting "
+ HFile.FORMAT_VERSION_KEY + " accordingly.");
WARN_CELL_WITH_TAGS = false;
}
}
> Huge performance bottleneck in HFileWriterV2 in 1.2.6
> -
>
> Key: HBASE-18847
> URL: https://issues.apache.org/jira/browse/HBASE-18847
> Project: HBase
> Issue Type: Bug
>Affects Versions: 1.2.6
>Reporter: Rich Howarth
>
> The below code block starts at line 277 of HFileWriterV2.java. Class-level
> synchronization in a heavily used code path has a demonstrably significant
> negative effect on performance. I tested forcing a major compaction with 18
> compaction threads per node; removing the synchronization resulted in an
> order of magnitude performance increase, with the bottleneck then being at
> the disks (where I want it to be).
> {code:java}
> synchronized (HFileWriterV2.class) {
> if (WARN_CELL_WITH_TAGS && getFileContext().isIncludesTags()) {
> LOG.warn("A minimum HFile version of " +
> HFile.MIN_FORMAT_VERSION_WITH_TAGS
> + " is required to support cell attributes/tags. Consider setting "
> + HFile.FORMAT_VERSION_KEY + " accordingly.");
> WARN_CELL_WITH_TAGS = false;
> }
> }
> {code}
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[jira] [Created] (HBASE-18847) Huge performance bottleneck in HFileWriterV2 in 1.2.6
Rich Howarth created HBASE-18847: Summary: Huge performance bottleneck in HFileWriterV2 in 1.2.6 Key: HBASE-18847 URL: https://issues.apache.org/jira/browse/HBASE-18847 Project: HBase Issue Type: Bug Affects Versions: 1.2.6 Reporter: Rich Howarth The below code block starts at line 277 of HFileWriterV2.java. Class-level synchronization in a heavily used code path has a demonstrably significant negative effect on performance. I tested forcing a major compaction with 18 compaction threads per node; removing the synchronization resulted in an order of magnitude performance increase, with the bottleneck then being at the disks (where I want it to be). -- This message was sent by Atlassian JIRA (v6.4.14#64029)
[jira] [Updated] (HBASE-18847) Huge performance bottleneck in HFileWriterV2 in 1.2.6
[
https://issues.apache.org/jira/browse/HBASE-18847?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Rich Howarth updated HBASE-18847:
-
Description:
The below code block starts at line 277 of HFileWriterV2.java. Class-level
synchronization in a heavily used code path has a demonstrably significant
negative effect on performance. I tested forcing a major compaction with 18
compaction threads per node; removing the synchronization resulted in an order
of magnitude performance increase, with the bottleneck then being at the disks
(where I want it to be).
synchronized (HFileWriterV2.class) {
if (WARN_CELL_WITH_TAGS && getFileContext().isIncludesTags()) {
LOG.warn("A minimum HFile version of " +
HFile.MIN_FORMAT_VERSION_WITH_TAGS
+ " is required to support cell attributes/tags. Consider setting "
+ HFile.FORMAT_VERSION_KEY + " accordingly.");
WARN_CELL_WITH_TAGS = false;
}
}
was:The below code block starts at line 277 of HFileWriterV2.java.
Class-level synchronization in a heavily used code path has a demonstrably
significant negative effect on performance. I tested forcing a major compaction
with 18 compaction threads per node; removing the synchronization resulted in
an order of magnitude performance increase, with the bottleneck then being at
the disks (where I want it to be).
> Huge performance bottleneck in HFileWriterV2 in 1.2.6
> -
>
> Key: HBASE-18847
> URL: https://issues.apache.org/jira/browse/HBASE-18847
> Project: HBase
> Issue Type: Bug
>Affects Versions: 1.2.6
>Reporter: Rich Howarth
>
> The below code block starts at line 277 of HFileWriterV2.java. Class-level
> synchronization in a heavily used code path has a demonstrably significant
> negative effect on performance. I tested forcing a major compaction with 18
> compaction threads per node; removing the synchronization resulted in an
> order of magnitude performance increase, with the bottleneck then being at
> the disks (where I want it to be).
> synchronized (HFileWriterV2.class) {
> if (WARN_CELL_WITH_TAGS && getFileContext().isIncludesTags()) {
> LOG.warn("A minimum HFile version of " +
> HFile.MIN_FORMAT_VERSION_WITH_TAGS
> + " is required to support cell attributes/tags. Consider setting "
> + HFile.FORMAT_VERSION_KEY + " accordingly.");
> WARN_CELL_WITH_TAGS = false;
> }
> }
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